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AFRICAN DEVELOPMENT BANK (ADB)

OUTFITTING WORKS ON THIRD FLOOR OF

SIERRA LEONE COUNTRY OFFICE OF THE

AFRICAN DEVELOPMENT BANK

BISHOP BUILDING

LAMINA SANKOH STREET, FREETOWN

VOLUME 2

TECHNICAL SPECIFICATIONS

&

BILL OF QUANTITIES

Realini Bader Associates Limited, Sierra Leone

Architects Engineers Planners Quantity Surveyors

72 Wellington Street

Freetown

Sierra Leone

February, 2021

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SPECIFICATION FOR THE SUPPLY,

INSTALLATION, TESTING AND

COMMISSIONING OF ELECTRICAL SERVICES

ENGINEERING FOR OFFICE BUILDING AT

LAMINA SANKOH STREET, FREETOWN FOR

SIERRA LEONE COUNTRY OFFICE OF THE

AFRICAN DEVELOPMENT BANK (ADB)

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ELECTRICAL ENGINEERING SERVICE INSTALLATION

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ELECTRICAL ENGINEERING SERVICE INSTALLATION

CONTENTS

1.0 TENDER CONDITIONS

2.0 DESIGN CRITERIA TENDER SPECIFICATIONS

3.0 ELECTRICAL ENGINEERING SERVICE INSTALLATION

4.0 SCHEDULE OF APPENDICES

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1.0 TENDER CONDITIONS:

1.1 Introduction

The purpose of this document and supporting drawings/data is to illustrate and

describe the Contract Works associated with the Electrical Engineering Services

(EES) Systems + Applications.

The information contained in the Technical Specification and depicted on the

Drawings is for the purpose of obtaining a competitive Tender for the EES Contract

Works

The Contractor must allow for liaising with other trades to ensure that the EES

Installation is properly coordinated / integrated into the Contract Works / Building

Complex as a whole.

It is recommended that the Contractor visits the site in order to acquaint himself with

the existing site conditions, (access, existing site infrastructure services etc.), that

might affect his Tender.

No claim arising out of any misunderstanding or neglect shall be considered.

1.2 Extent of the Contract Works

The EES Contract Works shall include all the necessary labour and materials and all

construction/building works, together with such tests, adjustments and commissioning

of the electrical engineering services systems and applications as are required to form

a “complete installation”.

The BES Contract Works “Complete Installation” shall mean not only the major items

of plant and equipment detailed in this Document, but all of the incidentals/sundry

components required for the complete execution of the Contract Works.

1.3 Contract Works: Design Development

The Contractor shall be responsible for carrying out the design development work in

connection with the EES Contract Works; this is in addition to that of the fundamental

design of the electrical engineering services systems and applications specified within

this Document and supporting drawings/data.

The Contractor shall allow, within his Tender, for the following particular design

development calculations:

(i) Lighting

To determine the required number of circuits, protection devices and cable sizes,

based upon the completed lighting installation drawings developed.

(ii) Small Power Requirement

To determine the required number of circuits, protection devices and cable sizes,

based the completed small power installation drawings developed.

(iii) Distribution Boards

To determine the required rating of protection devices, cable sizes and

appropriate load balancing illustration, based upon the completed lighting and

small power installation drawings developed.

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(iv) Incoming Electrical Power Supply (Panel board)

To determine the required rating and size of MCCB’s and associated protection

devices/cable sizes based upon completed installation drawings and electrical

schematic diagram.

The Contractor shall provide the M+E Engineer with the design development

drawings / data for his consideration, prior to the ordering of any capital plant.

The accuracy of such information, as submitted, shall remain the responsibility of

the Contractor.

1.4 Contract Works: Named Plant, Equipment+ Materials

The fundamental design of the EES Systems + Applications has been based upon

the named manufacturers/suppliers of the plant, equipment and materials, as

recorded within this Document.

The operating characteristics, performance and overall quality of the named plant,

equipment and materials have been validated against the design criteria, setting the

minimum standard to be achieved.

The overall space planning of the building complex has taken into account the

physical weight dimensions of the named plant and equipment, together with the

space required around the plant and equipment for maintenance and the future

replacement of the individual components and /or their complete renewal.

Items of plant and equipment, as named, have been sourced from a number of

international manufacturers/suppliers, acknowledged as having had experience in

providing equipment suitable for the intended use/application, with proven longevity

under operation in harsh climatic conditions.

The Contractor shall be at liberty to consider alternative manufacturers / suppliers; in

doing so, the Contractor is required to complete the Tender Declaration Form – Plant

+ Equipment and to submit the latter with his Tender.

In submitting alternative names, the Tenderer shall be expected to have checked that

his proposed manufacturers / suppliers’ plant and equipment satisfies the overall

performance, quality and dimensional requirements when compared to the

manufacturer / supplier as named within this Document.

The Contractor shall be required to provide, at the time of submitting his Tender, full

technical details of any proposed alternative manufacturer / supplier of the following:

(i). Main Electrical LV Panel board, Fused Switch Disconnectors + Distribution

Boards

(ii). Lighting Fittings and Switches

(iii). Small Power Requirement

(iii) Inverter Air Conditioning Units

1.5 Contract Works : Regulations and Standards

The EES Installation shall comply with the Technical Specification (s) set out within

this Document with all relevant British Standards and Codes of Practice and with all

other relevant Statutory Instruments and Regulations current at the time of Tender.

1.6 Contract Works: Materials and Workmanship

All materials must be suitable for their intended use/application and must comply with

the relevant Standards and be installed in accordance with the Codes of Practice and

Manufacturer’s recommendations.

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All site operatives must be suitable qualified and experienced for the work that they

are assigned to carry out. All workmanship must be of a good standard.

The Project Architect and the M+E Engineer shall reject poor materials and

workmanship and it shall be the contractor’s responsibility to put right such rejected

Contract Works at his own expense.

1.7 Contract Works: Programme

The Contractor shall allow adequate time within his overall Contract Works

Programme for presenting and receiving comments to / from the Project Architect /

M+E Engineer with respect to:

i. Design Development Information

ii. Installation Drawings

iii. Testing and Commissioning Procedures

1.8 Supervision of the Contract Works

The Contractor shall employ a competent, qualified and experienced Principal

Resident Site Engineer, who shall be in charge of the Contract Works during all

working hours and in attendance until the whole of the Contract Works has been

completed and accepted on behalf of the Employer/User.

The Contractor’s appointed representative shall attend meetings on site and be

empowered to answer on behalf of the Contractor.

The Contractor shall appoint a Deputy Site Engineer to cover for periods of absence

of the Principal Residence Site Engineer. Coordination of the Contract Works

The Contractor shall be responsible for the coordination of the all Electrical

Engineering Services Systems, such that each may be installed in a manner which

ensures the correct performance of the system and avoids conflict in the positioning of

the various Building Engineering Services (BES) elements.

The Contractor shall include within his Tender for the detailed development of his

Installation Drawings to contribute to a fully coordinated and integrated BES

Installation.

1.9 Contract Works: Installation Drawings

The Contractor shall prepare and submit to the Project Architect/ M+E Engineer,

Installation Drawings for all of the EES systems to be installed under the Contract

Works, together with such schedules, data, calculations, systems schematics and other

supplementary details necessary to execute the Contract Works.

The Installation Drawings shall be fully detailed, depicting the positions and physical

dimensions of all of the BES Systems Components.

The minimum scale for the production of the coordinated Installation Drawings shall

be:-

LV Panelboard Switch room: 1: 20

Floor Plans 1: 50

Site Services 1: 200

The Contractor shall make due allowance for the preparation of the EES Installation

Drawings within his Tender and within his Overall Contract Works Programme

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1.10 Contract Works: Fixing of the Services Installation

The Contractor shall be wholly responsible for the sizing, supply and installation of

all supports/fixings for the electrical engineering services.

1.12 Contract Works: Builders Work

Builders Work in connection with (BWIC) the EES Contract Works, such as duct,

holes, basses, chasses etc. shall be detailed by the Contractor as separated drawings.

The Contractor shall inform the Project Architect/M+E Engineer of any BWIC that

may affect the building structure and/or envelope.

The Contractor shall make due allowance for the detailing of the BWIC requirements

within his Tender and within his overall Contract Works Programme

1.13 Contract Works: Testing and Commissioning

The Contractor shall ensure that suitably qualified and experienced personnel,

together with the necessary instrumentation, are available at the time required to set to

work, test and commission the mechanical and electrical engineering services

systems.

The format of the testing and commissioning procedure, together with the details to be

entered on the test sheets, shall be agreed with the M+E Engineer.

The Contractor shall agree with the Project Architect/M+E Engineer a Programme for

the testing and commissioning of the various EES Systems.

The M+E Engineer shall retain a detailed record of all the testing and commissioning

procedures on site for examination.

The testing and commissioning shall demonstrate, amongst other things, that:

(i) All electrical circuits are properly electrically and physically protected and

earthed.

(ii) All electrical switchgears are neatly positioned, levelled and secured.

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1.14 Contract Works: Record Documentation

The Contractor shall supply to the Project Architect/M+E Engineer, as a prerequisite

to the Practical Completion of the Contract Works, a comprehensive record of the

completed mechanical and electrical engineering services installation. This shall take

the form of:-

i. AutoCAD based disk detailing all INSTALLATION DRAWINGS.

ii. 4 No. Dyeline prints of all INSTALLATION DRAWINGS.

iii. 4 No. Bound A4 copies of the OPERATING + MAINTENANCE MANUALS,

to include:-

a) Copies of all testing and commissioning certificates.

b) Manufacturers/Suppliers technical data for the maintenance and operation of all

plant and equipment, together with a schedule of spares provided.

c) Schedule recording all installation drawings.

The Contractor shall maintain accurate records of all testing and commissioning

procedures throughout the course of the Contract Works for incorporation into the O

+ M Manuals.

The Contractor shall have available a DRAFT COPY of the Record Documentation

for inspection by the Project Architect/M+E Engineer prior to Practical Completion of

the Contract Works.

1.15 Contract Works: Instruction of Employer’s Staff

The Contractor shall include within his tender, under the heading “Record

Documentation”, from the instruction of the Employer’s Appointed Maintenance Staff

on the operation of the EES Systems, to include emergency/breakdown procedures.

The instruction shall take place following the testing and setting to work of the EES

Systems.

A “Draft” copy of the Operating + Maintenance Manual shall be made available for

review by the Employer’s representative during this period.

1.16 Contract Works: Variations

All instructions, variations, additions to the Contract Works are only valid when

agreed to/signed for by the Project Architect (Manager).

Should the Contractor receive, during the progress of the Contract Works, any

instruction for additional work, Which he considers may affect the completion of the

Contract Works within the prescribed Contract Period, he shall be required to

formally notify the Project Architect in writing within seven days of the receipt of

such and instruction.

1.17 Contract Works: Practical Completion

The Contractor shall be responsible for inspecting the EES Installation and shall have

prepared his own defects inspection list and shall duly attend to the same, prior to

offering the completed EES Installation to the Project Architect (Manager) for

inspection and acceptance on behalf of the Employer.

The Project Architect/M+E Engineers’ inspection shall be one of formality and should

not be considered as an inspection for the purposes of forming the Contractor’s final

list scheduling the Outstanding Works.

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The Contractor shall agree with the Project Architect/M+E Engineer, a suitable date

for the FINAL INSPECTION.

1.18 Maintenance of Services

Any works necessitating interruption or termination of any services required to be

maintained or serving areas outside of the designated works area shall be thoroughly

coordinated and not be initiated until a Programme of works indicating disruption

time scales and/or temporary arrangements has been submitted and agreed fully by all

concerned.

1.19 Contract Works: Defects Liability Period

The Contractor shall be responsible under the Contractor for addressing/correcting all

of the EES Contract Works defects occurring within a period of TWO MONTHS,

commencing from the date of the PRACTICAL COMPLETION CERTIFICATION.

During the Defects Liability Period, the Contractor shall provide prompt and effective

“call back” service to attend to any urgent faults which may develop and which would

affect the day-to-day function of the building complex and facilities.

The Contractor shall retain a written log on site recording the details of the defect – i

e, date notified/date attended, fault identified, action taken, together with any ongoing

investigations/remedial work.

1.20 Contract Works: Provisional Sums

Provisional Sums have been entered on the Electrical Engineering Services

Installation – Tender Breakdown – Form of Tender Document.

These Provisional Sums provide for Works of Costs, which cannot be foreseen,

defined or detailed at the time of preparing the EES Contract Works Tender

Documentation.

The Provisional Sums include for the Contractor’s overheads and profit and therefore

are to be included in the Tender Breakdown as net sums without any further additions.

Instructions as to the deduction of expenditure in whole or in part of the Provisional

Sums shall be instructed by the Project Architect (Manager) during the course of the

Contract Works, as found necessary.

1.21 Contract Works: Schedule of Rates

The Contractor shall submit within his Tender, a priced copy of the Schedule Rates.

Each of the elemental rates shall include for all necessary labour and materials,

together with overheads and profit.

The declared Tender rates shall be used to evaluate all Works added, deleted and/ or

amended against the Contract Works Tender.

The Project Architect (Manager) reserves the right to reject any tender which does not

include the completed Schedule of Rates, returned with the Tender Submission.

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1.22 Contract Works: Tender Breakdown

The Contractor shall, when submitting his Tender for the Contract Works, enter on

the Tender Breakdown – Form of Tender Document, Lump Sum Costs for each of the

Electrical Engineering Services elements as prescribed.

The Project Architect reserves the right to reject any Tender, which does not include

the completed Tender Breakdown.

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2.0 TENDER SPECIFICATIONS:

2.1 Introduction:

2.2 General:

The Power Distribution System (PDS) for the Third Floor for the Office Building at

Lamina Sankoh Street, Freetown for Sierra Leone Country Office of the African

Development BANK (ADB) is to be supplied from a 160A, 4-way MCCB LV Panel

board located in the LV Panel board Switch room. The entire electrical system shall be

based on a 230/400V, 3 phase and neutral, 50 Hz, Terra Neutral- Separate (TN-S)

system.

2.3 Regulations and standards

The complete installation shall comply with all relevant British Standard and, where

indicated, with other standards and specifications and all amendments thereto. A

Certificate of compliance shall be provided for the Project Architect, to be included in

the handover.

2.4 Design parameters

Division of installations:

The installation shall be divided into circuits as necessary to:

a. Avoid danger and minimize inconvenience in the event of a fault

b. Facilitate safe inspection, testing and maintenance

c. Take account of hazards that may arise from the failure of a single circuit such as

a lighting circuit

d. Reduce the possibility of unwanted tripping of Residual Current Devices (RCD)

due to excessive protective conductor current not due to fault

e. Mitigate the effect of electro-magnetic disturbances

f. Prevent the indirect energizing of a circuit intended to be isolated

3.0 Prospective fault current (Pfc)

If a protective device is to operate safety, its rated short-circuit capacity must be not less

than the prospective fault current at the point where it is installed.

The distributor needs to be consulted as to the prospective fault current at the origin of

the installation.

4.0 Earth loop impedance external (Ze)

The Ze is to comply with British Standards.

5.0 Voltage droop

The voltage drop between the origin of the installation and a lighting point should not

exceed 3% of the nominal voltage and for other current using equipment or socket

outlets should not exceed 5%

6.0 Electrical installation:

6.1 General.

The contractor shall procure, install, inspect, test and commission the entire electrical

system within the Third Floor as stated within this Specification and associated

drawings.

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6.2 Main supply.

The main supply should comprise of a TN-S system at 400V, 50 Hz. The incoming

supply cable from the Main 200A, TP&N LV Busbar located within the Generator

House should be run via the existing service duct system and connect and terminated to

2Nr. 8-way TP&N LV Raw Power Distribution Boards located on the Third Floor

Electrical Switch Room as shown on the drawing.

7.0 Electrical service ducts

7.1 Service duct detail.

The supply cable is to be laid or drawn through the existing services duct

.

7.2 Trenching:

No work shall commence until the Contractor has taken all reasonable steps to ensure

that the area is free of all cable, drains and other services. A cable Avoidance Tool

(CAT0 and Signal Generator (Genny) or any other equivalent cable detector tool is to

be used to detect services. Unless otherwise indicate the following is required:

8.0 LV electrical equipment

8.1 General:

All intake equipment is to be installed indoors. The main supply is to be installed via a

lockable isolator before entering the distribution board.

8.2 Main intake isolator:

The main intake isolator will be installed directly below the distribution board. The

isolator is to have the ability to be locked off in the OFF position.

8.3 Distribution board:

The distribution board shall comply with the relevant British Standards as well as the

follow:

A It shall be suitable for surface mounting or concealed in blockworks, have

lockable doors (supplier with two keys) and be controlled by an on-load integral

disconnector.

Keys shall be labelled and handed to the Project Architect/M&E Engineer at practical

completion.

B Where spare ways are provided they shall be fitted with blanking pieces

C All neutral and earth connections shall be made to bars within the distribution

board each connection having an individual terminal. The neutral shall have a

removable link to facilitate testing.

D The connections to the neutral and earth bar shall be made to correspond with the

order of the phase connection.

E All conductors terminated at the board shall be appropriately marked with cable

ring markers indicating the circuit number and phase connection.

F All covers, doors and access plates into the distribution board shall be gasketed to

achieve a minimum protection of IP 32.

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G Access for cabling shall be from the front only. Shrouding to IP2X shall be fitted

to prevent accidental contact with live parts. Warning labels shall be provided and

fixed.

H There shall be a circuit schedule identifying each circuit giving reference,

description, rating of protective device and connected load located inside the

distribution board

I The circuit schedule shall be typed on an A4 sheet laminated and securely fixed to

the inside of the distribution board door.

8.4 Protection. Protection against electric shock for the electrical installation will be by

means of automatic disconnection of supply. Each protective device is to be identified.

Identification on neutral bus bar and protective conductor bar shall clearly relate each

terminal to its respective device. Overload protection will be provided by the use of the

following devices.

A. Miniature Circuit Breakers (MCBs) MCB shall comply with BSEN61008-1:2012

and have the following characteristic:

(i) Doors shall have a locking system or shall require a special tool for the opening

and have a minimum rated short circuit capacity (1cn) of 10kA unless otherwise

specified.

(ii) MCBs shall be capable of withstanding calculated operational and fault currents

as well as calculated power frequency stress voltages.

(iii) Three phase MCB shall trip all phases on any fault condition.

(iv) Provision shall be made to enable the operating mechanism to be padlocked in

the OFF position.

B. Residual Current Breaker with Overload Protection (RCBO’s).

All 13A socket outlets within the Office Building at Bishop Building Lamina

Sankoh Street, Freetown for Sierra Leone Field Office at the African

Development Bank (ADB) shall be connected through Residual Current Breaker

with Overload Protection (RCBO’s).

All RCBO’s shall comply with BS EN 61009-1:2004+14:2012 and have the

following characteristics:

(i) RCBOs shall be capable of withstanding calculated operational and fault

currents as well as calculated power frequency stress voltages.

(ii) The units shall be double or triple pole as required and mounted enclosed

within the distribution board.

(iii) The RCBO shall automatically open the protected circuit on an earth leakage

fault between phase and earth equal to or greater than the fault current

sensitivity rating of the device.

(iv) The operating mechanism shall be independent trip- free and shall not be

able to be held closed against an earth fault. The units shall be complete with

a test button and trip re- set device.

(v) The RCBO shall have position contact indication whereby the opening of the

device is clearly indicated by a mechanical indicator. This indicator shall be

linked to the device main contacts to show the positive opening of poles.

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8.5 The ratings and type of protective devices can be found in the Electrical Distribution

Board schedules.

8.6 Labelling:

The Contractor shall ensure they label the following:

a. Lighting and Emergency Exit lighting.

All emergency test key switches shall be labelled EMERGENCY LIGHT.

b. Switches and outlets.

All switches, socket outlets and isolators are to be labelled with their associated

circuit numbers i.e. DB1/1/L1.

8.9. Circuit diagram:

On completion of the electrical system installation, as built drawings of the circuit

layouts are to be produced and be included in the Health and Safety File and issued to

the Authorities at the Sierra Leone Field Office at the African Development Bank

(ADB) during the handover.

9.0 Final circuits

9.1. General:

All fixtures and fittings shall be securely fixed and checked before and after Installation

for defects and damage. All defective fittings shall be replaced. All socket outlets shall

be run as ring final circuit.

9.2 Sockets:

Socket outlets shall comply with the relevant British Standard for the type of outlet

indicated. Socket outlets shall be of the type and rating as indicated. PVC and metal

sockets are to be selected dependent on the room function. All other areas are to be

fitted with PVC and store areas are to be fitted with metal outlets (PVC conduit, back

box and faceplate).

9.3 Mounting heights:

Socket outlets shall be mounted at a height of 400mm above FFL and located in

positions shown on the associated drawings.

9.4 Fixed power circuits:

All fixed power shall be supplied by redials. The split Air Conditioning Units ACU’s

are to be supplied via individual radial circuits dedicated to each ACU. The split Unit

ACU’s are to have lockable rotary isolator switches for the external condenser.

9.5 General. Lux levels are to be achieved as specified. The light fittings are to be of a

sufficient IP rating to protect against dust and insect ingress. The lights to be used are

detailed in the lighting drawings, capable of achieving the light levels as design.

9.6 Emergency lighting:

Emergency lighting systems and equipment shall comply with BS 5266-1:2011. The

emergency lighting should be integral to the entire lighting system. The emergency

lighting shall have the following:

a) Emergency escape lighting:

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Emergency escape lighting shall provide illumination for the safety of personnel

leaving a location or attempting to terminate a potentially dangerous process before

doing so. In the event of power failure a minimum of 1 LUX level is to be

maintained at floor level for duration of 3 hours. The emergency escape lighting is

to be provided by maintained emergency luminaires that shall have their lamps

energized during normal use or in the event of power failure. The battery backup

shall be permanently connected to a circuit supply via a temper proof test switch,

without interruption by local functional switching.

b) Emergency escape route lighting:

The emergency escape route lighting shall ensure that the means of escape can be

effectively identified and safety used when the premises are occupied. The

emergency escape route lighting is to be provided by non-maintained emergency

luminaires with pictogram and shall energize their lamps during the event of a

power failure. The battery backup shall be permanently connected to a circuit

supply, via a tamper proof test switch, without any functional switching.

Fluorescent Emergency Exit signs are to be located over each external access

doors. The area immediately external of the door is to be illuminated to a distance

of 10m at a level of 1 Lux.

9.7 Switches:

Switches shall comply with the relevant British Standard for the type of switch

indicated. Switches shall be single pole for single phase circuits and the current rating

shall be the room. All other areas are to be in PVC and store in metal clad fittings.

Switches are to be mounted at 1400mm above FFL.

10.0 Cable containment

10.1 General:

The size of the containment shall be calculated in accordance with BS 7671+A2:2013.

Conduit, including flexible and pliable conduits shall be non-metallic and comply

with the relevant British Standards. When circuits are run in containment the

following shall apply:

a. Trucking shall comply with BS 4678-4; 1982 and be 50 x50mm in size

b. PVC Conduit shall comply with BS EN 50086-2-1:1996 and BS 4568-1; 1970 and

be 20mm and 50mm in diameter.

10.2 Trunking general:

Where trunking is required to pass through wall fabrics it shall be fitted with suitable

and approved flame proof fire barriers.

10.3 Supports and joints:

The trunking shall be installed in the ceiling void and secured to the trusses and in

vertical service ducts and secured to the wall surface. Expansion couplings shall be

protective where trunking crosses any expansion joints within the building fabric.

10.4 Bonding:

The metallic trunking must be bonded to earth and tested for continuity but must not

be used as a means of providing the protective conductor

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10.5 Access and covers:

Trunking and fittings shall have removable lids along its entire length. The lids shall

be of the same material, thickness and finish as that of the trunking.

10.6 Conduit general:

Metallic conduit shall have screw threads for jointing length to length and for the

attachment of accessories, PVC conduit shall use female couplers. Conduit and

fittings shall be screwed to the building fabric unless indicated and approved by the

Project Architect/M&E Engineer. High impact areas shall have galvanized steel

conduit and all other areas shall be PVC. Adequate protection against corrosion shall

be provided to steel conduit.

a Supports, Junction boxes and back boxes installed in conduit runs needs to be

separately fixed to underlying surface and not rely on the efficient saddling of

conduit for their support. A spacer bar saddle shall be fixed 150mm adjacent to

any junction or back box. Fixing saddles shall be positioned at a maximum of

1200mm apart or 300mm from conduit outlet boxes or changes in direction.

b Bends. Steel conduit shall be bent on site to the required shape to allow the

conduit to run around obstacles and corners. All conduit bends shall be achieved

without distorting the diameter of the conduit. Conduit bending shall be by means

of a good quality conduit bending machine, in good condition and any poor or

damaged conduit bends shall be rejected.

c Couplers, bushes ad glands. Bushes and glands used in conjunction with conduits

and conduit accessories shall be appropriate to the type used. Conduit connected

to galvanize steel trunking, back boxes and fluorescent fittings shall utilize a

coupler and male brass bush. The male bush is to be fitted by the appropriate

methods.

d Saddles, Spacer bar saddles shall be used for fixing conduits to surface walls and

ceilings. In all cases the conduit is to be run parallel to the building lines and shall

be fixed in position at intervals of not more than 120mm by means of spacer bar

saddles and these saddles shall be fixed by the appropriate methods.

e Access and covers. Covers for conduit boxes shall be appropriate to the type

used.

11.0 Cable

11.1 General:

All cable types shall be certified and marked in accordance with the British Approvals

Services for Electrical Cables (BASEC) or equivalent. Cables shall be segregated

from other services and shall comply with IEE Specification 034.

11.3 Cable routes:

Cables installed on the surface shall be parallel with the lines of the building

construction and properly aligned. Cables buried below ground shall, as far as is

practicable, follow the features of the site such as building lines.

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11.4 Cable segregation:

A minimum clearance in accordance with IEE Specification 034 shall be allowed

from any equipment, pipework or ductwork. In the event of difficulty in achieving

these requirements the M& Engineer shall be consulted. Adequate space shall be left

between cable runs building fabric and other services to allow for the future removal

or installation of cables.

11.5 Cable Cleats:

Cable cleats shall be made from materials that are resistant to corrosion without the

need for treatment or special finish. Plastic materials shall be non-brittle. Cable cleats

shall be of a suitable size such that they can be tightened down to grip the cables

without exerting undue pressure. The spacing of cable cleats shall comply with

BS7671+A2:2013. On each side of a bend, cable cleats shall be used to secure the

cable.

12.0 Protective conductors and bonding

12.1 General:

Automatic disconnection of the supply is the method of protection utilized for basic

and fault protection. Therefore, all protective conductors and supplementary bonding

is to ensure that, in the event of a fault, sufficient current flows to operate the

protective devices i.e. MCBs or RCD/RCBOs

12.2 Earth conductor:

In accordance with BS 7671+A2:2013, the minimum cross sectional area of the

protective conductor shall be half the cross sectional area of the line conductors.

12.3 Supplementary bonding:

Supplementary bonding conductors shall be installed to all exposed metal conductive

parts. In any part of the installation where the earthed metalwork of the electrical

system comes into contact with the metalwork of any other services, structure or

equipment a permanent earth bond shall be formed as close as is practicable to the

point of contact.

13.0 Inspection testing and commissioning

13.1 General:

During erection, on completion and before being put into services the electrical

installation shall be inspected, tested and verified, so far as is reasonable practicable

that the requirement of BS 7671 + A2 :2013 have been met. The verification shall be

made by a competent person and shall include comparison of the results with the

relevant criteria and regulations. On completion of the verification all relevant

documentation shall be prepared.

13.2 Inspection:

The inspection shall precede any testing of the installation and shall be carried out by

a competent person with that part of the installation being disconnected from the

electrical supply

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13.3 Live testing:

Live testing shall only be undertaken once suitable precautions have been put in place.

Calibrated equipment and suitable personnel protective equipment must be used.

Although live testing is a recognized method, under no circumstances is any

rectification to be carried out live.

13.4 Safety:

It is the responsibility of the test engineer to ensure their own safety and the safety of

others whilst working through the test procedure. Prior to testing the installation the

test engineer is to ensure the following precaution, are taken:

a. Equipment.

The tester must have knowledge and experience of the correct application and

use of the test instrumentation, leads, probes and accessories.

b. Standards.

All test equipment must meet the safety measures and procedures laid out in

Health and Safety Executive Guidance Note GS 38 for all instruments, leads,

probes and accessories.

13.5 Inspection and test procedure.

The inspection and testing of the new installation shall include the following:

a. Prior to energizing. Before energizing the following procedure is to be followed:

(1) Visual inspection as laid down within the current edition of BS 7671 +A2:2013

(2) Continuity of protective conductors, including main and supplementary bonding

(3) Continuity of ring final circuit conductors, including protective conductors

(4) Insulation resistance

(5) Polarity (by continuity method)

b. During energizing. With the supply connected and energized the following

procedure is to take place:

(1) Check polarity of the supply, using an approved voltage indicator

(2) Earth fault impedance

(3) Prospective fault current measurement

14.0 Certification and forms of completion

14.1 General:

The Contractor is to prepare all forms of completion. Current editions of forms are to

be used from BS 7671+A2:2013

14.2 Commissioning:

The Contractor shall be responsible for carrying out all inspection and testing of the

installation in accordance with BS 7671+A2:2013. The Contractor is to complete their

requirement sections of the commission forms and present them to the Project

Architect/Engineer for submission to the Bank.

14.3 Results.

21

All results obtained during the test procedure are to be recorded on the Schedule of

Test Results for the distribution board for future reference and checked for

acceptability against the prescribed criteria. All failed measurements are to be

highlighted to the Engineer/Bank at the earliest prepared to accompany the Schedule

of Test Results. All documents are to be included in the Health and Safety File and

issued to the Bank during the handover board.

14.4 Emergency lighting.

All emergency lighting is to be tested and certified in accordance with BS 5266-

1:2011. All test results are to be presented as part of the H&S File. The emergency

lighting system is to have the following certificates completed and presented as part

of the Health &Safety File:

a. Emergency lighting completion certificate:

To BS 5266-1:2011 Annex C emergency lighting completion certificated by the

Contractor’s Engineer

b. Design declaration of conformity:

To BS5266-1:2011 Annex C declaration of conformity to be completed by the

Contractor’s Engineer

c. Installation declaration of conformity:

To BS 5266-1:2011 Annex C installation declaration of conformity to be

completed by Contractor’s Engineer

d. Verification- declaration of conformity:

To BS 5266-1:2011 Annex C verification of conformity to be completed by the

Contractor’s Engineer

e. Periodic inspection and test certificate:

To BS 5266-1:2011 Annex D periodic inspection and test certificate to be

completed by the Contractor’s Engineer with assistance from the Bank Facility

Manager.

22

3.0 ELECTRICAL ENGINEERING SERVICE INSTALLATION

3.1 Incoming Electrical Power supply

3.2 Low Voltage Panel board

3.3 Low Voltage Distribution Boards

3.4 3-Compartment Dado Skirting System

3.5 Earthing + Bonding

3.6 Structured Cable Management System (SCMS)

23

3.1 Incoming Electrical Power Supply

System Description

System Drawings + Data

SL/ADB/E-1: Block Schematic Layout Power Supply & Distribution

Network

SL/ADB/E-2: Line Schematic Layout Primary / Secondary LV Distribution

Network

Appendix 1: Schedule of Incoming Electrical Raw Power Supply from the 200A,

TP&N LV Busbar located on the Ground Floor in the Main Switchroom.

System Plant, Equipment + Materials

3.2 Low Voltage TP&N Busbar:

The existing Low Voltage 200A, TP&N Busbar is located in the Main LV

Switchroom on the Basement Floor.

▪ Busbar chamber produced in 200A rating

▪ Nominal lengths 610mm

▪ Twin copper busbars are located in the same positions throughout the range

▪ Twin bar design for easy positioning of cables

▪ Fully rated Neutral

▪ win bar design to 200A

▪ One set of 4 clamps supplied with each chamber as standard

Specification:

Busbar Rating: 200A

Colour: Grey

Current Rating: 200A

Depth: 190mm

Dimensions: (H) 400 mm x (W) 1220 mm x (D) 190 mm

Finish: Epoxy Powder Coated Paint

Height: 400mm

IP Rating: IP31

Material: Full Cold Rolled Steel

Mounting: Wall

Number of Poles: 4 Pole

Packaging Types: Each

Product Range: Busbar Chambers

Size: 1220 mm

Standards: BS EN 61439-1

Unspsc: 39121320

Voltage Rating: 400V

Width: 1220mm

3.2.2 Fault Rating

The Busbar shall be constructed and type tested to withstand a fault level of 50KA for

1 second in accordance with BSEN 60439-1

24

3.2.3 Construction General

The Busbar shall be modular sheet steel, minimum 2mm thickness, cubicle built on a

rigid,

Self-supporting framework with compartments separated by barriers of a minimum

1.6mm thickness

Overall external Ingress Protection (IP) rating for the Panelboard shall not be less than

IP31 as defined in BSEN60529.

All internal live parts shall be protected to IP2X.

All parts of the Busbar both internal and external shall be free of sharp edges and

sharp corners.

3.2.4 Construction Form Type

The Busbar shall be Form 4, Type 2 as defined in BS 60439.

Busbars shall be separated from functional units.

Terminations to functional units shall be separated from each other.

Busbar separation shall be achieved by metallic or non-metallic rigid barriers or

partitions.

3.2.5 Busbars and Cabling

The busbar system shall comply with BS 159 and shall be:-

1. HDHC copper bar.

2. Fully rated allowing for any reduction in CSA where bars are drilled.

3 Inaccessible from equipment compartments and protected by sheet steel

barriers or shutters.

4. Clearly and indelibly colour identified as red, yellow, blue and black

respectively.

5. Tested in accordance with BS 7767

Connections between the busbars and the connected components shall have a current

rating not less than the nominal rating of the component and shall be of adequate

cross section for the specified fault level. Connections to functional units from the

main busbars shall be suitably rated copper busbars to a minimum of 250 Amps and

below this rating shall be in appropriately sized single core black PVC insulated, tri

rated, copper stranded cable.

All connections shall be marked with the requisite colour identification.

All connections from busbars to control and instrumentation equipment shall be

protected by fuses. The fuses shall be mounted on or as close as possible to the

busbars. Further fusing within the equipment’s compartment shall be provided if

necessary to ensure adequate discrimination.

Neutrals shall be full size for all busbars and cabling.

3.2.6 Earth Bar

A continuous, horizontally mounted earth bar shall be provided throughout the length

of the Panel board of minimum size 50mm x 6mm, suitable for extension and with

25

provision for bonding all metalwork with bolted connections. A minimum of two

connections shall be provided to the Panel board framework.

A minimum of two earth connections shall be provided for connection to the external

main earth ring.

Earthing shall comply with BS 7430, Code of Practice for Earthing.

Vertical earth bars shall be provided in each of the wiring chambers linked to the

main earth bar drilled out and fitted with suitable fixings for the appropriate number

of functional unit earth connections.

All earth bars shall be clearly identified within each wiring chamber.

Bolted copper links shall be provided to enable the switchboard earth system to be

isolated from the main earth ring for testing.

3.2.7 Wiring and Cabling

All internal wiring and cabling shall be:-

1 Terminated with suitable copper tube lugs, insulated end sleeves or PVC

insulated crimp terminals.

2. Fully insulated, PVC tri-rated grade cable to BS 6231.

3. Protected by grommets, bushes or glands where it passes through metal

enclosures.

4. Protected against heat and mechanical damage.

5. Labelled at both terminations. These reference numbers shall appear on the

wiring diagrams.

All power cabling shall be securely clamped to remain in place under the worst fault

conditions, and they shall not be supported by their terminations.

Small wiring shall be enclosed in trunking or other cable management system and

shall be numbered at both ends with the terminal number and wire number shown on

circuit drawings.

Cable terminations at 230VAC shall be fitted with a suitable removable shroud or

barrier to IP2X.

Panelboard to comply with BS 5486: Part 1, Form 4 with IP 54 degree of protection,

cable mounted. Circuit details as indicated in Appendices-1

System Plant, Equipment + Materials

3.3 Distribution Boards

Distribution Boards to be of totally enclosed type (IP 31) to provide protection in

compliance with BS 5420 IEC 144. The location of distribution boards to be as

recorded within Appendices 1a &b, 2a.

A multi-terminal Earthing bar shall be provided for circuit protective conductors of

the insulated metal cased boards, with one terminal for each outgoing circuit. These

26

will be connected directly to Earthing terminal without dependence on exposed

conductive parts of enclosure.

Distribution Boards shall be labelled showing the area and services which are to be

fed from them, and where not otherwise immediately obvious, their source of supply.

The engraving to be in white 10mm high letters on red plastic sheet or equal and fixed

external to the lids of apparatus by screw or rivets.

Low voltage Switchgear:

(i) Moulded Case Circuit Breakers (MCCB’s)

Moulded Case Circuit Breaker ratings shall be as stated within Appendix -1.

They are to be of the 500V totally enclosed metal clad type, complying with

BS 4752 (IEC 157-1) ASTA Certified P1 or P2 rating (50/35KV, 415V).

(ii) Miniature Circuit Breakers (MCB’s)

Miniature circuit breakers for incorporation in distribution boards to comply

with the requirements of BS 3871 (IEC 898)

(iii) Switch Fuses and Isolators

Switch fuses to be of the 500V totally enclosed metal clad type, complying

with BS 5414 (IEC 408) AC22 and AC23 rating. All switch fuses to be fitted

with HRC fuse cartridges and to be SP + N / TP + N, as required and as rated

in Appendix 12.

(iv) Residual Current-Operated Circuit Breakers

Residual current-operated circuit breakers to comply with BS 4293 (IEC 755)

(v) Isolators

Local isolator shall be supplied and installed for the control of each power

consuming fixed appliance which is solidly connected. It is necessary to

ensure that the means of isolation and the appliance are in the same room and

in direct line of vision and not more than 6 meters apart.

(vi) PVC Insulated Armoured Cables

These cables shall be of 600/1000V grade in compliance with BS 6346. The

conductors to be insulated with PVC or XLPE insulated, PVC bedded,

armoured with a single layer of galvanized steel wire or tape, and sheathed

overall with PVC.

Unless specifically indicated otherwise, all cables shall have copper

conductors.

Where cables enter switchgear and other apparatus, they are to be made off

with suitable brass glands which shall incorporate both a cone grip armour

clamp with positive armour locking and a resilient compression gland to

firmly grip the outer PVC Sheath of the cable. A brass earth tag to be fitted

between the gland and the apparatus. A secure earthing connection to be made

between the earth tag and the main earthing terminal of the apparatus, using a

suitable copper conductor

27

(vii) PVC Insulated Single Core Cables

These cable to be of 600/1000V grade to BS 6004 and, unless specifically

indicated otherwise, to have copper conductors. Cable for all services shall be

in accordance with the Appendix 11 and the latest IEE Regulations. Cables to

be coloured in accordance with Table: 52A of the IEE Regulations.

(viii) Wiring Installation

PVC Conduit (Concealed)

PVC conduit and fittings to be high impact type, heavy gauge, BS 4607

Compliant, AH grade.

No conduit to be less than 20mm dia.

PVC conduit to be concealed within walls

(ix) Flexible Metallic Conduit (Plant)

Flexible metallic conduit to be of the overlapping helically wound flexible

steel type, with a PVC outer cover in accordance with BS 731. The conduit to

be fitted with heavy duty couplers and connections and to include a bush to

protect cables when drawn-in

Flexible metallic conduits on Plant and Equipment final connections

(x) Cable Trunking

Cable Trunking to be installed in floor ducts and plant rooms on routes as

shown on drawings.

(xi) Cable Trunking Plastics

The cable Trunking to be constructed of heavy gauge extruded high impact

PVC.

(xii) Cable trays

Cable trays to be galvanized punched metal.

Cable trays to be installed in ground floor ducts, service risers, plant room and

switch rooms.

3.4 3-Compartments Dado Trunking

The PVC Dado Trunking system has been designed to prevent communication

interference, with its 3 compartments designed to separate data communication /

telephone and mains 240V cables.

The 2 outer compartments are designated to the data communication and telephone

cables; the center compartment is for use with 240V mains cable.

The product is ideal for re-routing cables from horizontal position to vertical with no

visible joints.

28

3.5 Earthing + Bonding

System Description

Earthing and Bonding to be undertaken in compliance with IEE Wiring Regulations

and BS 7430.

Equipotential bonding to be applied to all exposed metal parts and in particular:-

Metal cable trunking and trays

3.6 Structured Cable Management System (SCMS)

System Description

A fully integrated / coordinated SCMS to be supplied / installed, arranged to

accommodate cabling system in the vertical service ducts

System Plant, Equipment + Materials

(i) Vertical Service Ducts

400mm wide x 25mm deep, galvanized, punched metal cable trays, fixed to

the building structure with support brackets.

(ii) Ceiling Voids (Basement Floor, Ground Floor and First Floor

Type A – 400mm wide x 50mm deep,

Type B – 300mm wide x 50mm deep,

Type C – 2mm wide x 50mm deep, high strength, electro-plated zinc,

galvanized

Steel rod wire basket cable tray, fixed to ceiling with support brackets.

Wire baskets and fittings to be as manufactured / supplied by Wiremould

Cables to be secured within cable trays / baskets employing “VELCRO” type

quick release fasteners.

Dado/Skirting Trunking (Reception Area, Conference Room, Server Switch

Room, Store,, and Offices.

Type D – 135mm x 50mm deep, white finished chamfered high impact PVC

manufactured in accordance with BS 4678. Part 4 (1982)

Tender Drawings/Figure Nos

Drawing

Number

System Drawing Type Detail

SL/ADB/E-1 Low Voltage

Distribution

Block Schematic

Layout

Incoming Power Supply and Low Voltage

Distribution

SL/ADB/E-2 Low Voltage

Distribution

Line Schematic

Diagram

Panelboard locations, Incoming/Outgoing LV Cable

Routing, Fire Alarm, Door Access Control and

CCTV Camera Locations

Structured Cable

Management System

Cabling Systems in vertical service duct

TO BE READ IN CONJUNCTION WITH ARCHITECTURAL AND STRUCTURAL ENGINEERING

DRAWINGS

29

Contract Works: Named Plant, Equipment + Materials.

The Contractor shall enter below the names of the Manufacturers / Suppliers of the Plant,

Equipment and Materials included within his Tender Price, either by confirming his use of

the ‘As Named’ Manufacturer/Supplier or by defining his proposed alternative.

4.0 SCHEDULE OF APPENDICES:

Appendix DETAIL

1 Incoming Raw Power Electrical Supply: Schedule of Existing LV Busbar Panel

2a Low Voltage Power Distribution: Schedule – Raw Power Distribution Board 1 – Third Floor

2b Low Voltage Power Distribution: Schedule – Raw Power Distribution Board 2 – Third Floor

3 Low Voltage Power Distribution: Schedule – UPS Distribution Board 1 – Server Room Third Floor

4 Low Voltage Power Distribution: Schedule – Small Power Requirements – Third Floor

5 Schedule of Light Fittings - Internal / External Areas Third Floor

6 Incoming Electrical Power Supply: Schedule of Cables – Third Floor

7 Technical Specification – Electrical Services Installation

8 Technical Specification – Inverter Single Split Air Conditioning Unit Services Installation.

Plant, Equipment, Materials As Named Manufacturer/Supplier

in this Document

Proposed Alternative

Manufacturer/Supplier

(Country of Origin)

1. Panelboard PROTEUS

2. Distribution Boards PROTEUS

3. Fused Switch Disconnectors PROTEUS

4. Luminaries Thorn Lighting Ltd +DESIGNPLAN

5. Small Power Accessories MK Ltd Legrand

6. 3-Compartments Dado Trunking

7. Structured Cable Management System Wiremould Ackermann Centaur

30

APPENDIX 2 – SCHEDULE OF RAW POWER DISTRIBUTION BOARDS THIRD

FLOOR

2a Raw Power Distribution Board 1 – Third Floor

Location: Third Floor

Reference: Raw Power DB-1

Type: 1 x 8Way 125A TP + N

Fed From: 200A, TP&N 4-Pole Busbar

Feed Cable: 1 x 4C x 25mmsq XLPE/SWA/PVC; 10mmsq cpc

Cct

No

Circuit MCB Cable Size

(mm sq.)

Load in Watts

R Y B

1 Outdoor Passage Area - Lighting 10A 1.5-2c + E

2 Male / Female Toilets- Lighting 10A 1.5-2c + E

3 Store & Switchgear Area - Lighting 10A 1.5-2c + E

4 Reception/ Passage/ Lobby Area - Lighting 10A 1.5-2c + E

5 Server Room - Lighting 10A 1.5-2c + E

6 Office - Lighting 10A 1.5-2c + E

7 Conference Room - Lighting 10A 1.5-2c + E

8 Emergency Exit Lightning - Lighting 10A 1.5-2c + E

9 Office- Lighting 10A 1.5-2c + E

10 Canteen - Lighting 10A 1.5-2c + E

11 Servery/Kitchen Areas - Lighting 10A 1.5-2c + E

12 Male / Female Toilets- Lighting 10A 1.5-2c + E

13 Store existing- Lighting 10A 1.5-2c + E

14 Reception – A/C Unit - 1- Radial 40A 4.0-2c + E

15 Server Room – A/C Unit - 1- Radial 40A 4.0-2c + E

16 Server Room – A/C Unit - 1- Radial 40A 4.0-2c + E

17 Office – A/C Unit - 1- Radial 40A 4.0-2c + E

18 Office – A/C Unit - 1- Radial 40A 4.0-2c + E

19 Lobby – A/C Unit - 1- Radial 40A 4.0-2c + E

20 Canteen -– A/C Unit - 1- Radial 40A 4.0-2c + E

21 Hand Dryer - 1- Radial 20A 4.0-2c + E

22 Hand Dryer - 1- Radial 20A 4.0-2c + E

23 SPARE

24 SPARE

Phase Total (Watts)

Total Load (kVA)

[p.f = 0.85]

Imax (A)

Io = Imax x 0.85

NOTE: All 13A Raw Socket Outlets within the Third Floor to the RCBO protected

31

2b Raw Power Distribution Board 2 – Third Floor

Location: Third Floor

Reference: Raw Power DB-2

Type: 1 x 8Way 125A TP + N

Fed From: 200A, TP&N 4-Pole Busbar

Feed Cable: 1 x 4C x 25mmsq XLPE/SWA/PVC; 10mmsq cpc

Cct

No Circuit MCB

Cable Size

(mm sq.)

Load in Watts

R Y B

1 Conference Room Office – A/C Unit - 1- Radial 40A 4.0-2c + E

2 Conference Room Office – A/C Unit - 1- Radial 40A 4.0-2c + E

3 Conference Room Office – A/C Unit - 1- Radial 40A 4.0-2c + E

4 Conference Room Office – A/C Unit - 1- Radial 40A 4.0-2c + E

5 Hand Dryer - 1- Radial 20A 4.0-2c + E

6 Hand Dryer - 1- Radial 20A 4.0-2c + E

7 Reception – Radial - 2 Sockets 40A 4.0-2c + E

8 Server Room – Radial - 3 Sockets 40A 4.0-2c + E

9 Office -– Radial - 2 Sockets 40A 4.0-2c + E

10 Conference Room-– Radial - 2 Sockets 40A 4.0-2c + E

11 Office-– Radial - 2 Sockets 40A 4.0-2c + E

12 Canteen -– Ring - 3 Sockets 20A 42.5-2c + E

13 Servery/Kitchen Areas– Ring - 2 Sockets 20A 2.5-2c + E

14 Store existing– Ring - 2 Sockets 20A 2.5-2c + E

15

16

17

18

19

20

21

22

23

24

Phase Total (Watts)

Total Load (KVA)

[p.f = 0.85]

Imax (A)

Io = Imax x 0.85

NOTE: All 13A Raw Socket Outlets within the Third Floor to the RCBO protected

32

APPENDIX 3 – SCHEDULE OF UPS POWER DISTRIBUTION BOARDS THIRD

FLOOR

3a UPS Power Distribution Board 1 – Third Floor

Location: Third Floor

Reference: UPS DB-1

Type: 1 x 8Way 125A TP + N

Fed From: 20kVA New UPS

Feed Cable: 1 x 4C x 25mmsq XLPE/SWA/PVC; 10mmsq cpc

Cct

No

Circuit MCB Cable Size

(mm sq.)

Load in Watts

L N E

1 CCTV Multiplexer – Radial 10A 2.5-2c + E

2 Addressable Fire Alarm Panel – Radial 10A 2.5-2c + E

3 Door Access Control Panel – Radial 10A 2.5-2c + E

4 Reception – Radial - 2 Sockets 40A 4.0-2c + E

5 Server Room – Radial - 3 Sockets 40A 4.0-2c + E

6 Office -– Radial - 2 Sockets 40A 4.0-2c + E

7 Conference Room-– Radial - 2 Sockets 40A 4.0-2c + E

8 Office-– Radial - 2 Sockets 40A 4.0-2c + E

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23 SPARE

24 SPARE

Phase Total (Watts)

Total Load (kVA)

[p.f = 0.85]

Imax (A)

Io = Imax x 0.85

33

APPENDIX 4 - SCHEDULE OF SMALL POWER REQUIREMENTS- THIRD

FLOOR

THIRD FLOOR

NUMBER OF SMALL

ELECTRICAL POWER

OUTLETS

TYPE / RATING COMMENTS

TYPE A TYPE B

Server Switch Room TYPE B

MK Logic Plus, Legrand

13Amp Double Switch

Socket Outlets

Power points fitted to 3

compartment high impact PVC

dado trunking installed at skirting

level

Reception Area

TYPE B

MK Logic Plus, Legrand

13Amp Double Switch

Socket Outlets

As Above

Server Room TYPE B As Above As Above

Office TYPE B As Above

Power points fitted to 3

compartment high impact PVC

dado trunking installed at skirting

level

Conference Room TYPE B As Above As Above

Lobby TYPE A As Above As Above

Office TYPE B As Above

Power points fitted to 3

compartment high impact PVC

dado trunking installed at skirting

level

Canteen TYPE A

MK Logic Plus, Legrand

13Amp Single Switch

Socket Outlets

Servery TYPE A As Above

Kitchen TYPE A As Above

Store existing TYPE A TYPE B

MK Logic Plus, Legrand

13Amp Single Switch

Socket Outlets

Door Access Control TYPE A

MK 13 Amp Legrand

Switched Fused Spur

with Neon Indicator

UPS Power points located on wall

at high level adjacent to each door

under Access Control

Alarm Systems TYPE A

MK 13 Amp Legrand

Metalclad Plus Switch

Socket Outlets

UPS Outlet points fitted to

galvanized metal conduits within

Reception Area

CCTV TYPE A

MK 13 Amp Legrand

Switched Fused Spur

with Neon Indicator

UPS power points located on wall

at high level adjacent to each door

under Access Control

Notes: TYPE A – Single Switched Socket Outlet

TYPE B – Double Switched Socket Outlet

Radial Circuit – 2Nr. Socket Outlets to 1Nr. 40A MCB

34

APPENDIX 5: SCHEDULE OF LIGHT FITTINGS - INTERNAL / EXTERNAL

AREAS

S/N AREA REF. TYPE OF FITTING/SWITCHING QTY

A Third Floor:

1 Passage 32W, THORN CETUS 240 Downlight c/w

Bezel

3

2 Male / Female Toilets

13W GX24-Q-2 Lamp - BEGA TYPE No.

2543 - Impact Resistant Ceiling Light, Low

Voltage Fluorescent Lights

4

3 Store by Switchgears As Above 1

4 Switchgear Area As Above 1

5 Reception 600 x 600mm 40W LED Ceiling Panel

Lighting IP44

2

6 Server Room As Above 2

7 Office As Above 2

8 Conference Room As Above 12

9 Passage Area As Above 2

10 Emergency Exit

Lightning

8Watts Emergency Illuminated Exit Sign-

3Hrs. Maintain

4

11 Lobby 600 x 600mm 40W LED Ceiling Panel

Lighting IP44

2

12 Office 18W LED Ceiling Downlight 4

13 Canteen 600 x 600mm 40W LED Ceiling Panel

Lighting IP44

6

14 Servery 1200mm x 36W LED Emergency Fluorescent

fittings.

1

15 Kitchen 1200mm x 36W LED Emergency Fluorescent

fittings.

1

16 Male / Female Toilets

13W GX24-Q-2 Lamp - BEGA TYPE No.

2543 - Impact Resistant Ceiling Light, Low

Voltage Fluorescent Lights

3

17 Store existing 1200mm x 36W LED Normal Fluorescent

fittings.

1

Note: 1. All light fittings to be manually switched.

2. MK Metalclad Plus type switches/switch plates..

3. MK Logic Plus type switches/switch plates.

4 All light fitting wiring to be contained within enclosed PVC conduit pipes and

accessories.

35

APPENDIX 6: SCHEDULE OF CABLE

S/N FROM TO CABLE DESCRIPTION

RAW POWER

A 200A Busbar in Main

Electrical Switchgear

125A, 8-way TP&N LV Raw

Power Distribution Board-1 4C x 35mm2 XLPE/SWA/PVC Cable + 16mm2 cpc

B 200A Busbar in Main

Electrical Switchgear

125A, 8-way TP&N LV Raw

Power Distribution Board-2 4C x 35mm2 XLPE/SWA/PVC Cable + 16mm2 cpc

UPS POWER

A 20kVA 3Ph High

Frequency Online UPS

125A, 8-way TP&N LV UPS

Power Distribution Board-1

4C x 25mm2 XLPE/SWA/PVC Cable + 16mm2 cpc

36

PROPOSED ELECTRICAL SWITCHGEARS

1. 250Amps, 12way Energy Management Panelboard with increasing emphasis

on

energy conservation, we have offers the Proteus Switchgear range of

intrinsic energy management, varying from time switch and relay logic to

electronic microprocessor control*of lighting, heating and ventilation and

fire/security systems.

To meet these changing requirements in commercial and industrial

applications, Proteus Switchgear manufactures custom-designed energy

management panels, typically incorporating the following options:

1. Main incoming isolation / protection up to 800 amps

2. 24 hour essential services distribution•

3. Point of entry / exit key switch controlled services

4. Fire alarm interlocking•

5. Signage control / extended hours manual override

6. Emergency lighting test / battery discharge facility

7. Panels built to specification or in conjunction with Proteus Technical

Department.

2. 3 Pole MOULDED CASE CIRCUIT BREAKERS TO IEC/EN 60947-2’

for use as outgoing devices within and Panelboard.

3. THREE PHASE POWER DISTRIBUTION BOARD

TO 10kA, MCB’s up to 63A (17.5mm Module) 10kA MCB’s 10 amps to

125A

(26.3mm Module) Unique busbar arrangement to accept MCB’s up to 125A

maximum outgoing*

10kA MCB’s 125 amps (26.3mm Module)

Unique busbar arrangement to accept MCB’s up to 125 amps maximum

outgoing

4. THREE PHASE SWITCH DISCONNECTORS WITH FUSES

FEATURES

Specification as Switch Disconnectors above, plus:

Internal switching mechanism also padlockable in off

position

Maximum rated fuses fitted

Fully rated at AC23A category of duty (inductive

load)

Screened terminals

37

5. THREE COMPARTMENT PVC DADO SKIRTING TRUNKING 3 METRE

LENGTHS

3 Metre Lengths, Three Compartments 3 Compartment Dado Flat

Angle

PVC Dado Trunking

3 Compartment Dado Flat Tee 3 Compartment Dado External

Angle

The PVC Dado Trunking system has been designed to prevent communication interference,

with its 3 compartments designed to separate data communication / telephone and mains

240V cables.

The 2 outer compartments are designated to the data communication and telephone cables;

the center compartment is for use with 240V mains cable.

The product is ideal for re-routing cables from horizontal position to vertical with no visible

joints.

38

TECHNICAL SPECIFICATIONS FOR THE

SUPPLY, INSTALLATION AND

COMMISSIONING OF WALL MOUNTED

INVERTER AIR CONDITIONG UNITS ON

THE AT THIRD FLLOR FOR OFFICE

BUILDING AT LAMINA SANKOH STREET,

FREETOWN FOR SIERRA LEONE

COUNTRY OFFICE OF THE AFRICAN

DEVELOPMENT BANK (ADB)

39

AIR CONDITIONING (HVAC) UNITS:

A. Scope Of Specification

1. Installation to Comply with this Specification

The Inverter Air-Conditioning and Control system installation shall comply with

this Specification which details the intrinsic properties (including materials and

workmanship) of the installation in so far as it is not overridden by the Conditions

of Contract, Special Conditions of Contract, and Particular Specification for the

Works, Drawings and/or written instructions of the Project Architect.

2 SCOPE OF THE WORKS

This Specification, Particular Specification, Tender Equipment Schedule and

Drawings detail the performance requirements of the Works. The Works to be

carried out in accordance with this Specification shall include the installation and

supply of all materials necessary to form a complete installation including any

necessary tests, adjustments, commissioning and maintenance as prescribed and

all other incidental sundry components together with the necessary labour for

installing such components, for the proper operation of the installation.

B Statutory Obligations and Other Regulations

1 The Air-Conditioning and Control System installation shall comply with the

followings:-

1.1 Statutory Obligations

(a) Building (Ventilating System) Regulation under Buildings Ordinance (Sierra

Leone);

(b) Electricity Ordinance and other subsidiary legislation made under the

Ordinance;

(c) Fire Service (Installations and Equipment) Regulations, Fire Services

Ordinance and other subsidiary legislation made under the Ordinance;

(d) Noise Control Ordinance, and other subsidiary legislation made under the

Ordinance;

(e) Air Pollution Ordinance, and other subsidiary legislation made under the

Ordinance;

(f) Ozone Layer Protection, and other subsidiary legislation made under the

Ordinance;

(g) Environmental Impact Assessment Ordinance, and others made under the

Ordinance;

(h) Places of work Public Ordinance and other subsidiary legislation made under

the Ordinance.

1.2 Other Requirements

(a) Code of Practice for the Electricity (Wiring) Regulations published by

Electrical Distribution and Services Authority (EDSA) and Mechanical

Services Department, Ministry of Works, Government of Sierra Leone;

(b) Code of Practice for Energy Efficiency of Electrical Services Installations and

Air Conditioning Services Installations issued by Electrical & Mechanical

Services Department, Government of Sierra Leone;

40

C Execution of Works:

1 International System of Units (SI)

The International System of Units (System International Unites) of weights and

measures shall be used for all materials, equipment and measurements.

2 Programme of Works

The Contractor shall submit to the Project Architect a detailed programme of the

Works within 7days from the acceptance of his tender showing the intended

method, stages and order of work execution in coordination with the building

construction programme, together with the duration he estimated for each and

every stage of the Works. The programme shall include at least the following:-

(a) Dates for the placement of orders for equipment and materials;

(b) Expected completion dates for builder’s work requirements, i.e. when work

site needs to be ready;

(c) Delivery dates of equipment and materials to Site;

(d) Dates of commencement and completion of every stage of the Works in line

with the building construction programme, i.e. each floor level and/or zone

area;

(e) Dates of documents/drawings submissions to Project Architect to obtain the

necessary approvals;

(f) Dates of requirement of temporary facilities necessary for testing &

commissioning, e.g. electricity supply and town gas;

(g) Dates of completion, testing and commissioning; and

(h) Short term programme showing the detailed work schedules of coming weeks

and months shall also be provided to the Project Architect. Programme shall

be regularly updated to reflect the actual progress and to meet the

Contractors’ obligations under the Contract.

In addition, detailed submission schedules for installation drawings, equipment

and testing and commissioning shall be submitted to the Architect for approval.

The formats and information to be included in the schedules shall be as required

by the Project Architect.

3 Builder’s Work

All builder’s work including openings or holes through building structure or

partition walls; trenches, ducts and cutting; and all plinths, concrete bases,

supports, ducts, etc. required for the installation will be carried out as part of the

building works by the building contractor at the expense of the Employer provided

that the Contractor has submitted full details of such requirements within a

reasonable time to the Project Architect for approval, so that due consideration

may be given before the building contractor commences the building works in

accordance with the building programme in the areas concerned. After obtaining

the said approval of the Project Architect, the Contractor is required to mark out at

the relevant locations of the Site the exact positions and sizes of all such works

and to provide detailed information of such works to the building contractor to

facilitate him to carry out the builder’s works as the works proceed.

All "cutting-away" and "making-good" as required to facilitate the Contractor’s

works will be carried out by the building contractor, except for minor provisions

required for the fixing of screws, raw plugs, redhead bolts, etc. which shall be

41

carried out by the Contractor. The Contractor shall mark out on Site and/or supply

drawings of all "cutting-away" to the building contractor within a reasonable time.

All expenses properly incurred and losses suffered by the Employer as a result of

the Contractor’s failure to comply with the above requirements are recoverable by

the Employer from the Contractor.

The Contractor shall ensure that such works are essential for the execution of the

Works. In the event that any of such works is proved to be non-essential,

unnecessary and/or abortive, the Contractor shall bear the full cost of such works

including but not limited to any unnecessary or incorrect cutting-away and

making-good and shall reimburse the Employer for all cost incurred in this

connection.

Upon completion of the builder’s works by the building contractor, the Contractor

shall forthwith check and examine that all builder’s works so executed have been

completed in accordance with his requirements. If at any time it becomes apparent

to the Contractor that any builder’s works completed by the building contractor

does not comply with his requirements in any respect whatsoever, the Contractor

shall forthwith give notice in writing to the Project Architect and specify in details

the extents and effects of such non-compliance in that notice. The Contractor is

deemed to have satisfied with the builder’s works after a period of 7 days from the

date of completion of the builder’s works if the above notice is not served to the

Project Architect within such period. All additional expenditure properly incurred

and all loss suffered in this connection by the Employer in having such works re-

executed and rectified shall be recoverable by the Employer from the Contractor.

4 Protection of Materials and Equipment

Unless the responsibility is clearly defined in the Contract that the protection on

Site for delivered equipment, materials and installation is solely by other

contractors, the Contractor shall be responsible for the safe custody of all

materials and equipment as stored or installed by him until finally inspected,

tested and accepted. In addition, the Contractor shall protect all work against theft,

fire, damage or inclement weather and carefully store all materials and equipment

received on Site but not yet installed in a safe and secure place unless otherwise

specified.

All cases of theft and fire must immediately be reported to the police, the building

contractor, the Project Architect and the representatives on Site with full details.

Where necessary the Contractor shall provide lockable steel container or other

equally secure enclosures placed within a securely fenced-in compound provided

by the Building Contractor on Site for the storage of materials and equipment.

The Contractor shall co-ordinate and arrange with the Building Contractor who

shall provide clean, reasonably finished and lockable secure accommodation for

the storage of sensitive and/or expensive items before installation.

If there is no Building Contractor, all the storage facilities and spaces shall be

provided by the Contractor.

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5 SERVICE CONDITION

The following service conditions shall apply to materials and equipment’s:

Building Location

Freetown, Sierra Leone

08o30’N, 13o14’W, Altitude 11m

Design Criteria

1. External Environmental Conditions

High temperatures, high humidity, saline atmosphere, presence of airborne

dust particles during Harmattan, periods of high precipitation

2. External Ambient Design Conditions

33o C db. 27oC wb. Average max/min daytime temperatures 30oC.db /

24oC.wb (Diurnal Range 6oC)

References: CIGSE Design Guide

BBC Weather Data, based on readings at location for 14 years

3. Internal Environmental Design Conditions

Refer Schedules 1-3 for internal temperatures, occupancy levels and fresh air

requirements.

4. Internal Noise Criteria

5. IEE Wiring Regulations

6. CIBSE Commissioning Codes

6 VOLTAGE COVERED BY THIS SPECIFICATION

Unless otherwise specified, all apparatus, equipment, materials and wiring shall be

suitable for use with a 3-phase and neutral, 4-wire, 400/230 V ±6%, 50 Hz ±2%.

7 HVAC System for use in Hash Environments:

Remove and replace all the existing Single Split Wall Mounted HVAC Systems to

an efficiency and energy-savings at lower costs with the Inverter technology in

HVAC Systems.

This will greatly reduce the energy requirements to run the HVAC units and save

diesel cost when the system is used when the Generator Set is use.

a) Inverter Air Conditioning

The inverter air conditioning is the latest technology in the HVAC field that is

becoming more popular due to its environmental friendly and energy savings

approach. Providing comfort to the users is another big advantage of this kind

of system.

Traditionally, the compressor that is used in an air conditioning system is an

ON or OFF type in that it either works at the maximum capacity or none at all.

It ON when the room thermostat calls for cooling and OFF when the desired

temperature has been achieved. This cycle is repeated with the change of load

in the room.

The advancement in power electronics has enabled the inverter technology to

thrive by the use of microcontroller and IGBT modules to drive the

43

compressor DC or AC motor. The speed of the compressor motor can be

varied by using the variable frequency drive.

These is done by converting the incoming AC supply to DC voltage and then

modulate it by changing the voltage, current and frequency of the power to the

compressor. Changing the frequency changes the speed of the compressor by

using a more complicated electronics control circuitry.

b) Advantages of using Inverter Technology

Keeping abreast with the latest technology has more advantages than

remaining status quo. Here are some of the reasons why you should consider

buying an inverter air conditioning system.

• Energy Savings is one of the most important factors to consider when

buying equipment. In the long run, the benefit outweighs the initial cost.

The inverter technology uses less energy compared to the traditional

system.

ON/OFF type of compressor has large starting current, sometimes 6 times

more than the running current. This causes flicker to lights and the energy

consumed is greater. Typically, there is a 20% to 30% savings in power

consumption.

• Comfort to the users is another advantage of this system. During start-up,

the compressor can run full speed to provide quick cooling to the room.

After the desired room temperature has been achieved, the speed of the

compressor is regulated using the variable frequency drive based on the

required cooling load of the room.

The fluctuation of temperature is minimum compared to the ON/OFF type

of compressor. This provides a comfortable environment for the occupants

at all times.

• Ozone Friendly refrigerant such as R410a is used in most inverter system.

This refrigerant contains only HFC compared to R22 which contains

HCFC, an additional chlorine component that destroys the ozone layer of

the earth.

Always enquire the kind of refrigerant which is in used as some installers

prefer to continue using R22 as it is cheaper compared to R410a and hence

lower their cost.

• Quiet Operation is another feature that inverter technology offers. The

outdoor unit which contains the inverter compressor is much quieter

compared to the non-inverter compressor. Hence, you do not have to

worry about noise when you sleep.

• Cost Saving: Highly efficient, energy saving, and cost saving operation is

realized with HVAC inverter and heat pump technologies.

• Durability: Anti-corrosion treatment is provided for installation in harsh

environmental conditions.

44

• Custom-built Installation: Custom-built installation and flexibility in

power supply provide solutions to precisely meet customer requirements

• High Reliability: The addition of various advanced features ensures

reliable and stable system operation.

45

Temperature Control by Inverter/Non-Inverter Compressors (Cooling)

G SCHEDULE OF PROPOSED CONFORT COOLING INVERTER SINGLE

SPLIT WALL MOUNTED AIR-CONDITIONING UNITS TO BE INSTALL

ON THE THIRD FLOOR ADB COUNTRY OFFICE FOR FREETOWN,

SIERRA LEONE

No Room Schedule Qty. Type of Unit Cooling

Capacity

Total

Cooling

Third Floor

1 Server Room 1 Wall Mounted 1 x 9,000BTU 9,000BTU

2 Main Entrance Reception 1 Wall Mounted 1 x 12,000BTU 9,000BTU

3 Office 1 Wall Mounted 1 x 12,000BTU 12,000BTU

4 Office 1 Wall Mounted 1 x 18,000BTU 18,000BTU

5 Conference Hall 4 Wall Mounted 4 x 18,000BTU 72,000BTU

6 Office 1 Wall Mounted 1 x 18,000BTU 18,000BTU

7 Lobby Area) 1 Wall Mounted 1 x 12,000BTU 12,000BTU

8 Store 1 Wall Mounted 1 x 9,000BTU 9,000BTU

9 Canteen 1 Wall Mounted 1 x 24,000 BTU 24,000BTU

46

TECHNICAL SPECIFICATION FOR THE

SUPPLY AND INSTALLATION OF A 20KVA,

3-PHASE 400V~, 50HZ, HIGH FREQUENCY

ONLINE UPS WITH INTERNAL

MAINTENANCE BYPASS & PARALLEL

CAPABILITY

47

PRODUCT OVERVIEW:

20KVA, 3-PHASE 400V~, 50HZ, HIGH FREQUENCY ONLINE UPS

Key Features:

▪ Run time for load 16000W

▪ Max. Capacity Used 100%

▪ Output power capacity 16.0kWatts / 20.0kVA

▪ Nominal Output Voltage 230V, 400V 3PH

▪ Nominal Input Voltage 400V 3PH

▪ Input Connections Hard Wire 5-wire (3PH + N + G)

▪ Maximum Input Current 27.0A

20kVA 400V, with Internal Maintenance Bypass & Parallel Capability

Effective 20kVA, 3 Phase UPS power protection against downtime and data loss for mission

critical applications

Includes:-Bolt Down Brackets, CD with software, Installation Guide, Power modules ship

installed, User Manual, and Web/SNMP Management Card

• Parallel-capacity capable: Increases total power capacity by using multiple

uninterruptible power supplies

simultaneously.

• Parallel-redundant capable: Power the connected equipment with multiple

uninterruptible power supplies to

increase system redundancy

FEATURES & BENEFITS:

Marketing features

Hot-swappable batteries Ensures clean, uninterrupted power to protected equipment while

batteries are being replaced

Manageability

Network manageable: Provides remote power management of the UPS over

the network.

LED status indicators: Quickly understand unit and power status with visual

indicators.

SmartSlot: Customize UPS capabilities with management cards.

Programmable frequency: Ensures compatibility with different input frequencies

LCD display: Alpha-Numeric Display which displays system

parameters and alarms.

InfraStruXure Manager Compatible: Enables centralized management via the APC

InfraStruXure Manager.

48

Audible alarms Provides notification of changing utility power and UPS

power conditions

PROTECTION:

Cold-start capable: Provides temporary battery power when the utility

power is out.

Safety-agency approved: Ensures the product has been tested and approved to

work safely with the connected service provider

equipment and within the specified environment.

Frequency and voltage regulation: Gives higher application availability by correcting poor

frequency and voltage conditions without using the

battery.

TOTAL COST OF OWNERSHIP:

Manual maintenance bypass: Reduces installation costs by eliminating the

need for an external mechanical bypass.

Temperature-compensated battery charging: Prolongs battery life by regulating the charge

voltage according to battery temperature.

Input Power Factor Correction: Minimizes installation costs by enabling the

use of smaller generators and cabling.

Intelligent battery management: Maximizes battery performance, life, and

reliability through intelligent, precision

charging.

SUSTAINABILITY:

EU CoC for UPS: Ensures that UPSs sold in the EU are highly efficient

AVAILABILITY:

Automatic internal bypass: Supplies utility power to the connected loads in the

event of a UPS power overload or fault.

Scalable runtime: Allows additional run time to be quickly added as

needed.

Generator compatible: Ensures clean, uninterrupted power to protected

equipment when generator power is used.

Dual mains input: Increases availability by allowing the UPS to be

connected to two separate power sources.

Battery modules connected in parallel Delivers higher availability through redundant

batteries.

SERVICEABILITY:

Shippable with modules installed: Enables pre-installation UPS staging and testing and

faster installation.

Automatic self-test: Periodic batteries self-test ensures early detection of a

battery that needs to be replaced.

Battery replacement without tools: Enables fast battery replacement, lowering Mean Time

to Repair (MTTR).

Modular design: Provides scalability, N+1 redundancy, fast

serviceability, and reduced maintenance requirements

via self-diagnosing, hot-swappable, and field-

replaceable modules.

49

TECHNICAL SPECIFICATIONS:

Output

Max Configurable Power (Watts): 16.0kWatts /20.0kVA

Neutral Output Current: 50A

Output Voltage Note: Configurable for 380, 400 or 415 V 3 Phase nominal

output voltage

Output Voltage Distortion: Less than 5% at full load

Output Frequency (sync to mains): 47 - 53 Hz for 50 Hz nominal

Output Frequency (not synced): 50Hz +/- 0.1% for 50Hz nominal

Other Output Voltages: 380, 415

Load Crest Factor: Unlimited

Topology: Double Conversion Online

Waveform type: Sine wave

Overload Operation: 10 minutes @ 125% and 60 seconds @ 150%

Maximum Output Current: 32

Output Voltage THD: < 2% for 0 to 100% linear load and < 5% for full non

linear load

Output Voltage Tolerance: +/-1% static and +/- 5% at 100% load step

Bypass: Built-in Maintenance Bypass, Built-in Static Bypass

Input

Input frequency: 47 - 70 Hz (auto sensing)

Input voltage range for main operations: 304 - 477V

Input Total Harmonic Distortion: Less than 5% for full load

Type of Input Protection Required: 3-pole breaker

Other Input Voltages: 380, 415

Maximum Short Circuit Withstand (Icw): 30.0kAmps

Input Power Factor at Full Load: 0.98

BATTERIES & RUNTIME:

Battery type: No internal battery - uses external battery system

Replacement Battery: SYBT4

Efficiency: View Efficiency Graph

COMMUNICATIONS & MANAGEMENT:

Interface Port(s): DB-9 RS-232, SmartSlot, SUVTPCOM

Control panel: Multi-function LCD status and control console

Audible Alarm: Audible and visible alarms prioritized by severity

Emergency Power Off (EPO): Yes

PHYSICAL:

Maximum Height: 823MM, 82.3CM

Maximum Width: 352MM, 35.2CM

Maximum Depth: 838MM, 83.8CM

Net Weight: 134.0KG

Shipping weight: 173.0KG

Shipping Height: 1290MM, 129.0CM

Shipping Width: 720MM, 72.0CM

Shipping Depth: 1110MM, 111.0CM

Color: Black

Units per Pallet: 1.0

50

ENVIRONMENTAL:

Operating Temperature: 0 - 40 °C

Operating Relative Humidity: 0 - 95 %

Operating Elevation: 0-999.9meters

Storage Temperature: -35 - 60 °C

Storage Relative Humidity: 0 - 95 %

Storage Elevation: 0-15000meters

Audible noise at 1 meter from surface of unit: 54.0dBA

Online thermal dissipation: 3112.0BTU/hr.

Protection Class: IP 20

CONFORMANCE:

Approvals: C-tick, EN 50091-2, EN/IEC 62040-3, IEC 61000-3-2, IEC 61000-3-3,

ISO 14001, ISO 9001, VFI-SS-112

Standard warranty: 1 year on-site repair or replace with factory authorized Start-UP

GENERAL:

Bypass Connection: 5 wire (3PH + N + G)

DOCUMENTATION:

Manuals and Warranties

51

SYSTEM WIRING DIAGRAM

52

ACCESSORIES MUST BE INCLUDED

UPS Communications Cable Smart Signaling UPS VT Battery Temperature Sensor for

External Battery Cabinet

UPS Cables that provide dedicated connections Accessory solutions to tailor the UPS to

meet your

between UPSs and servers desktops, workstations, specific needs

UPS Communications Cable Smart Signaling UPS VT Parallel

Communication Kit

6'/2m - DB9 to RJ45 Accessory solutions to tailor the

Smart-UPS to meet your UPS Cables that provide dedicated connections specific

needs

between UPSs and desktops, workstations, and

servers

UPS Communications Cable Smart Signaling 15' / 4.5m UPS Signaling Offer for IBM

AS/400 and IBMi (IBM Power

UPS Cables that provide dedicated connections between Systems)

UPSs and desktops, workstations, and servers UPS Cables that provide dedicated

connections between UPSs and

desktops, workstations, and servers

53

DOCUMENTATION:

Manuals and Warranties

Operation manual containing information on operation, maintenance and troubleshooting for

the user of the UPS system

DESIGN/CONFIGURATION: Providing information on technical data, facility planning, drawings, and options

AGENCY APPROVALS:

Certificate of Origin UPS 3-Phase, 20 kVA, 400 V, 50 Hz (Sheet)

DRAWINGS:

Smart-UPS VT Parallel, With Battery, System Wiring Diagrams

54

PRELIMINARIES

55

PRELIMINARIES AMOUNT (US $)

PRELIMINARIES

A POSITION OF THE WORKS

The position of the works on the site will be on the 3rd Floor of

Bishop Building at Lamina Sankoh Street, Freetown and as

indicated in the Contract Document, and as shown on the drawings.

The contractor’s operative including those of all Sub-Contractors are

limited to the use of only those areas of the site, which is essential,

they should use or enter for the execution of the works or for access.

Entry to all other areas shall be prohibited. Plants, temporary

buildings, spoil heaps etc., shall be placed only in areas or position

previously agreed with the Consultants and the African

Development Bank.

B EXISTING SERVICES

The services that may exist on or over the site and within the

building include electricity cable lines, telephone distribution

lines and water supply pipes

C SITE VISIT

The tenderer is strongly recommended to visit the site and

ascertain for himself site accessibility, the nature of the

ground, the circumstances under which the works will be executed and all local conditions and restrictions likely to affect the execution of the works. No claims on the grounds

of want of knowledge will be entertained. The site may be visited at any time during normal working hours

D DRAWINGS The drawings used in the preparation of these Bills of

Quantities are numbered:

C/F

56

PRELIMINARIES

AMOUNT (US $)

B/F

A MEASUREMENT These Bills of Quantities have been prepared in accordance

with the PRINCIPLES of the Standard Method of Measurement

of Building Works, Seventh Edition, (Metric), simplified to accord local practice. All items have been measured and billed in metric in accordance with clause 3 of the General

Rules of the Standard Method of Measurement of Building Works (7th Edition) .

B EXECUTION The works throughout shall be executed to drawings prepared

by and under the direction of the Consultant. Figured

dimensions should always be preferred to scale dimensions. Otherwise working and detailed drawings are to be taken in

preference to small-scale plans. Where there is a case of doubt or dispute the Consultant’s decision will be binding and failure to comply with the foregoing will not form the basis of

any claim.

GENERAL MATTERS

C AVAILABILITY OF MATERIALS The contractor shall make full enquires to satisfy himself that

all materials; in particular cement, sand, coarse aggregates, and water which are described in these Bills of Quantities and to which his prices relate will be available in sufficient

quantities to enable him to complete the whole of the works in contract time and no claim will be entertained on the grounds of non- availability of materials and that the

contractor had to resort to alternative sources of supply for materials specified.

D AVAILABILITY OF LABOUR

The Contractor will be held to have made all enquires to the sources of his labour and to have made all provisions in his tender for every cost to him of providing and maintaining the

labour force necessary to complete the contract including all supervisory costs associated therewith. No claims will be entertained on grounds associated with the failure by the

Contractor to observe these recommendations.

57

C/F

PRELIMINARIES AMOUNT (US $)

B/F A DUTY –FREE CONCESSION

The Contractor will not be exempted from the payment of customs duties and other such Government levies normally imposed on imports on any equipment, plant Vehicles and

materials, which he may wish to import for the execution of contract.

B INSURANCE A provisional sum is included in the main summary to cover

the following for which the Contractor will be required to take out polices.

(a) For insuring against all risk of personal injury to or death of any person whomsoever the contractor is responsible

(b) For insuring against all risk of injury or damage to existing property and new works.

(c) For maintaining in the joint names of the employer and the contractor insurance in respect of all risk of injury or damage to property other than the works as

defined in the conditions of contract. (d) For insuring in the joint names of the employer and

the

contractor against loss and damage by fire etc. as defined

in the conditions of contract

The limit of third-party risks shall not be less than Twenty thousand US Dollars (US$ 20,000.00) in respect of any one incident

Notwithstanding the minimum cover specified before the

Contractor shall indemnify the employer against all third-party

claims.

The contractor’s attention is drawn to the advisability of ensuring that the provisions of his insurance policy are adequate to cover the actual cost of replacement or repair at

any time during the currency of the contractual commitment.

58

C/F

PRELIMINARIES AMOUNT (US $)

B/F

CONTRACTOR’S LIABILITY A DAMAGE AND THEFT

The Contractor will be solely responsible for safeguarding the works, materials and plant against damage and theft and he

is advised to effect such additional insurance as is necessary to adequately cover such risks.

OBLIGATIONS AND RESTRICTIONS IMPOSED BY THE EMPLOYER

MATERIALS B The whole of the materials (except where otherwise

described) goods and equipment required for the full

performance of the contract by the Contractor must be provided through normal trade channels and shall include for the payment of all necessary bank charges, opening letters of

credit, postage, cables, telex, e-mails port charges, handling charges, agents fees and other similar charges, and delivery to site.

The contractor shall keep on the site a storekeeper who shall

keep records of all materials brought on to the site and taken

from the site, which documents shall be made available for inspection by the Consultants.

On the date of the signing of the contract the Contractor is to

make a review of the materials he will require for the

execution of the works and he is to place orders for such materials without delay in order that materials are delivered to the site, as they are required. All materials which can be

stored on site with the approval of the Consultant without deterioration or damage are to be purchased and stored as soon as possible.

C WORKING SPACE

Provide for taking all precautions to prevent workmen including those employed by sub-contractors from trespassing on adjoining owner’s property and any parts of the premises

not affected by the works.

59

Provide also for taking reasonable precaution to keep all unauthorized persons off the site.

C/F

PRELIMINARIES AMOUNT (US $)

B/F A WORKING HOURS

Working hours are limited to the normal working hours of the building industry. Overtime shall not be worked by operatives

on the site without the prior express permission in writing from the Consultant.

B MATERIALS FOUND ON SITE Any materials other than earth filling which are discovered

upon the site during the course of legitimate excavation or demolition work and the like and which are suitable for incorporation in the permanent work may only be used for

permanent work with the prior written consent of the Consultant. The quality and value of any such materials authorized to be used in the permanent works will be

assessed by the Quantity Surveyor and the total value thereof deducted from the contract sum. The contractor is expressly prohibited from executing any excavation work and the like

for the sole purpose of obtaining building materials.

C NOTICE BOARD AND ADVERTISING

The contractor shall erect or display a notice of advertising in

an approved manner and position a single board of an approximate size (1200 x 2400mm) high overall containing the name, address and description of the project, Employer,

Consultants, Contractor, Donor and authorized sub – contractors. Allow here for providing the same

D MAINTENANCE OF PUBLIC AND PRIVATE SERVICES Establish the position of, protect, uphold and maintain all

pipes, ducts, sewers, service mains, overhead cables, etc. during the execution of the works. The contractor shall make good any damage due to any cause within his control at his

own expense or pay all costs and charges in connection therewith, Where it is necessary to interrupt any such mains or services, permission shall be obtained from the Consultant

and, where appropriate, from the local authority or public undertaking and the duration of any interruption kept to a

60

minimum

C/F

PRELIMINARIES AMOUNT (US $)

B/F A PROGRAMME

The contractor upon acceptance of his offer shall proceed immediately with the preparation of a programme or statement, which shall clearly set forth the sequence of all operations and the

time limit within which it is proposed that each operation shall be commenced and completed. The Contractor shall be held to have coordinated the whole of the works embraced in this contract

including the work of nominated sub-contractors, local authorities and public undertaking whether engaged by him or engaged directly by the Employer.

The consultant will supply the contractor with adequate details of

all works to be carried out by others directly engaged by the

employer where such work is to be integrated with the work under his contract. Upon the agreement or negotiated amendment of the programme by the consultant the contractor shall be responsible for

executing the works in conformity therewith

Six reproducible copies of the agreed programme are to be supplied

to the consultants within seven days of agreement being reached. At the same time the contractor shall issue to the consultant a statement setting out the latest dates by which drawings and other

instructions are required by him for the implementation of the agreed programme.

Allow here also for updating the programme on a weekly basis to reflect the actual progress achieved on site

B PROGRESS PHOTOGRAPHS Allow for providing monthly two sets of progress photographs of

postcard size, as directed by the Consultant to a minimum of four

shots per set of the works to clearly indicate the progress of the work.

Allow also for providing the client with 2 Nr approved photographic albums of the self- adhesive type each approximately 250mm x 300mm with hard wearing covers and at least 18 Nr pages each

covered with a transparent film

C SAMPLES

Allow here for submitting samples of all materials and for executing small specimen of works as directed by the Consultants

61

C/F

PRELIMINARIES

AMOUNT (US $)

B/F

A TESTING MATERIALS The Contractor will be required to carry out test of materials

on site and to prepare, pack and dispatch materials and

goods to a nominated testing laboratory in connection therewith (including the making of concrete test cubes). The Contractor’s attention is drawn particularly to the

requirements in the concrete work section of the specifications.

B CERTIFICATE VALUATION

The contractor will be required to submit a detailed approximately priced statement of work executed and materials supplied in support for each application for interim

payment. He shall, at the same time, provide any necessary applications for payments from nominated sub-contractors.

C INFORMATION FOR CLERK OF WORKS Allow here for furnishing to the clerk of works such

information as he shall require in connection with the works including a statement showing the number of men employed in all trades daily and delivery notes for all materials received

on the site

D. TEMPORARY ACCOMODATION AND FACILILTIES FOR

EMPLOYER

Provide and maintain a secure weatherproof office for the

clerk of works with floor area not less than 20m2 and no part of the ceiling less than 2250mm high. Provide desk or tables with lockable drawers, sufficient plan bench, and chairs

lockable equipment cupboard. Provide artificial lighting, attendance and cleaning.

Provide and maintain separate temporary toilet accommodation for the use of the clerk of works and other Employer’s representatives and maintain in a clean and

odour free condition. Such accommodation shall be flushing

62

type and be temporarily connected to a suitable septic tank. Provide washbasin with water supply together with an

adequate supply of soap, toilet roll and clean towels.

C/F

PRELIMINARIES

AMOUNT (US $)

B/F A TEMPORARY ACCOMMODATION AND FACILITIES

FOR EMPLOYER (CONTD.)

Alter, shift and adapt the foregoing temporary buildings

from time to time as may be necessary and finally clear away and make good all surfaces, services, disturbed etc

B TEMPORARY TELEPHONE FOR EMPLOYER Allow here for the installation in the office of Clerk of works

of a separate telephone or mobile cell phone for the use of the Employer and the cost of telephone calls made on his behalf

C SITE MEETINGS

Allow here for all expenses in accommodating and attending regular progress site meetings under the chairmanship and

direction of the Consultant.

D WORKS BY NOMINATED SUB-CONTRACTORS

The word “attendance” or “attend upon” where used

throughout these Bills of Quantities in connection with

nominated sub –contractors shall mean:

1. General attendance on nominated sub-contractors as

defined in Clause A51 (3) of the standard method of measurement of building works.

2. Providing free use of erected hoisting facilities, scaffolding, etc.

3. Providing free use of electric power.

63

C/F

PRELIMINARIES

AMOUNT (US $)

B/F A WORKS BY NOMINATED SUB-CONTRACTORS

(CONTD.)

Special attendance on nominated sub-contractors where required have been described in the relevant sections of

these Bills of Quantities.

Builder’s work in connection therewith has been measured

separately unless otherwise stated, but the Contractor must obtain particulars of the position in which chases, holes, mortices, etc. will be required so as to avoid unnecessary

cutting away. No claim will be considered for the extra cost of cutting away work already built as a result of the contractor’s neglecting to obtain sufficient particulars before

hand

B

GOODS AND MATERIALS FROM NOMINATED SUPPLIERS

The words “fix” or “ fixing” or” fix only” where used

throughout these Bills of Quantities in connection with goods and materials to be obtained from nominated suppliers or supplied by the Employer shall mean fixing goods and

materials as defined in Clause A 52 of the Standard method of Measurement of Building works

C SECURITY FOR DUE PERFORMANCE The Contractor shall enter into a written contract and shall

together with his sureties execute a performance bond payable on demand and equal to 10% of the Contract Sum. The sureties shall be a reputable financial institution such as

a bank, an insurance company or finance company acceptable to the Employer.

The Employer may release up to 75% of the performance bond after practical completion of the works and the remaining 25% at the end of the defects liability period or

the satisfactory making good of defects whichever is the

64

latest.

D PLANT, TOOLS AND VEHICLES Provide all necessary plant, tools and vehicles for the proper

execution and completion of the whole of the works

C/F

PRELIMINARIES

AMOUNT (US$)

B/F

A SCAFFOLIDING Provide all necessary temporary scaffolding for the proper

execution of the works, Alter and adapt as necessary and

clear away on completion.

B SITE ASMINISTRATION AND SECURITY

Provide for all site administration costs including cost for

general foreman in charge.

Safeguard the works, materials, plant etc against damage or

theft including providing all necessary watching and lighting.

C TRANSPORT FOR WORK PEOPLE

Provide for all costs in respect of all necessary transport for work people.

D PROTECTING THE WORK FROM INCLEMENT WEATHER

Provide for carefully covering up and protecting the works

including those by nominated sub-contractors or any adjoining property exposed by these works from inclement weather.

The Contractor should note particularly that no concrete

work, or other work liable to become damaged by rain, may

be carried out during rainy weather except with the express permission of the consultant and that all such work must be covered up at night and adequately protected from rain.

The Contractor shall avail himself of all reasonable means

and aids to building in inclement weather, which are

65

currently available and use his best endeavours to prevent or to minimize delays, which might result from bad weather.

The Consultant will not grant an extension of time for delays, which have been incurred through failure to comply with these recommendations.

C/F

PRELIMINARIES

AMOUNT (US$)

B/F A

WATER FOR THE WORKS

Provide clean fresh water for use on the works, pay all charges in connection therewith, provide all temporary

storage, plumbing services, connections, etc. and clear away and make good works disturbed on completion

B LIGHTING AND POWER FOR THE WORKS

Provide all necessary temporary electric and power for the works including all necessary flood lighting where work after dark is involved including that required by nominated sub-

contractors and pay all fees and charges. Where electricity is available adjacent to the site the Contractor must allow here

or in his prices for a metered connection and pay all fees and charges in connection therewith and for current consumed.

TEMPORARY ROADS, HARDSTANDING, CROSSING ETC.

C Provide and maintain in good condition all necessary

temporary roads, hard standing, crossing, etc. that may be required and clear away and make good on completion.

TEMPORARY ACCOMMODATION FOR THE USE OF THE CONTRACTOR

Provide and maintain temporary office accommodation for

the Contractor’s staff and watertight sheds for the storage and protection of materials, tools, and tackle for the use of workmen employed upon the site and a watchman’s hut in

positions to be agreed with the Consultant.

Provide and maintain in a clean and odour free condition

66

where directed temporary toilet accommodation for the use of all workmen. Whenever possible such accommodation

shall be of the flushing type and be temporarily connected to a suitable septic tank.

Alter, shift and adapt temporary buildings from time to time as may be necessary and finally clear away and make good all surfaces, etc disturbed.

C/F

PRELIMINARIES

AMOUNT (US $)

B/F A TEMPORARY TELEPHONES OF THE USE FOR THE

CONTRACTOR

Provide and maintain a temporary telephone or mobile cell phone service to the office of the foreman in charge and to the office of such other of the Contractor’s site staff as may

be necessary for the full period of works and pay all charges and expenses in connection therewith

B TRAFFIC REGULATIONS

Comply with all vehicular and air control traffic regulations particularly those relating to unloading and loading of

Vehicles and provide any necessary traffic control.

C SAFTEY, HEALTH AND WELFARE OF WORK

PEOPLE

Provide for costs incurred and comply with all safety, health

and welfare regulations appertaining to all work people (including those employed by any sub-contractor) employed on the site

Provide adequate First Aid equipment, which shall be

available for the use of all workmen during working hours.

D DISBURSMENT ARISING FROM THE EMPLOYMENT OF

WORK PEOPLE

Provide for all costs in respect of all work people for:

a) Workmen compensation liability b) Redundancy Pay c) Annual and public holidays

d) Traveling time, expense, fares and subsistence (see

67

item C page 10 for transport for work people) e) Non – productive time and other expenses in

connection with overtime f) Any incentive time and bonus payments g) Any other disbursements arising from employment of

work people.

C/F US$

PRELIMINARIES

AMOUNT (US $)

B/F

A MAINTENANCE OF PUBLIC AND PRIVATE ROADS

Maintain public and private roads, footpaths, kerbs etc. in

good condition and keep the approaches to the site clear of mud and dirt. The Contractor shall clear and make good any damage caused by his own or any sub-contractor s or

supplier’s transport at his own expenses and pay any costs and charges in connection therewith.

B REMOVE RUBBISH, PROTECTIVE CASINGS AND COVERING AND CLELANING THE WORK ON COMPLETION

Provide for removing all rubbish from the site to an approved dumping site both as it accumulates from time to time and at

completion.

Provide for removing all protective casings and covering and

leave the whole of the works clean to the satisfaction of the Consultant on completion and prior to handing over.

C DRYING THE WORKS Provide for adequate drying out of the works both for the

Contractor’s own work and the work of all nominated sub-contractors and allow for providing all necessary labour, appliances and fuel required therefore.

D TEMPORARY FENCING, HOARDING, SCREENS,

PLANKED FOOTWAYS GUARD RAILS, GANTRIES ETC.

Provide and maintain all necessary temporary fencing, hoarding, screens, planked footways, guard rails, gantries and the like for the proper execution of the work. Allow for

68

protection of the public and the occupants of adjoining premises and for meeting the requirements of any local or

other authority and alter, shift and adapt from time to time as necessary and finally clear away when no longer required and reinstate all surfaces, services etc disturbed.

C/F US$

PRELIMINARIES

AMOUNT (US $)

B/F

A PROTECTION OF SITE

Allow for protecting the site including the provision of temporary barrow runs, etc. and for reinstating on

completion including filling in all depressions caused by Vehicular traffic and making good where huts etc. have been removed (excluding seeding and turfing).

B

ALLOW OTHER STATUTORY OBLIGATIONS

Provide for complying with all other statutory obligation not herein-before mentioned.

C

DAYWORKS

Where work cannot properly be measured and valued the contractor shall be reimbursed on a day work basis in

accordance with the conditions of contract

The Prime Cost of such will be calculated in accordance with the “Definition of Prime Cost of Daywork carried out under a Building Contract” published by the Royal Institution of

Chartered Surveyors, December, 1975 Edition together with additions to each of the Prime cost at the rate to be inserted hereunder by the Contractor

The Contractor shall give to the Consultant reasonable notice

of the commencement of any work which he considers

should be paid for as daywork and in respect of such shall submit to the Consultant for Verification Vouchers in triplicate in the manner and at the time stated in the conditions of

contract. The basis of payment will be decided by the Quantity Surveyor

69

The daywork shall be recorded on properly laid out and

numbered Vouchers specifying the time daily spent upon the work and the materials and plants employed; the voucher shall also state the date on which the works were executed

and give a detailed description of and a reference to the instruction authorizing the work.

C/F

PRELIMINARIES

AMOUNT (US $)

B/F

A DAY WORKS (CONTD.)

The signature of the Consultant or his representative shall only confirm the scope of the work and that it has been carried out and not acceptance that the work shall be paid for as daywork, if

at all.

The Quantity Surveyor may reject any daywork sheets, if in his

opinion the work could properly be measured and valued within the terms of the contract.

Provide the sum of US$ 500.00 for labour as defined 500.00 Add for incidental costs, overheads and profit

as defined. %

Provide the sum of US$ 1,000.00 for materials

and goods as defined

1,000.00

Add for incidental costs, overheads and profit as defined %

Provide the sum of US$ 1,500.00 for plants as defined

1,500.00

Add for incidental costs, overheads and profits as defined %

TOTAL OF PRELIMINARIES CARRIED TO MAIN SUMMARY

70

OUTFITTING WORKS

71

Item No Description

Qty Unit Rate US$ Amount US$

DEMOLITION

Please refer to Clause C20 of the Standard

Method of Measurement (Seventh Edition)

(SMM7) of the Building Works to ensure

that all requirements for demolition are fully

met by the Bidder

A Carefully demolish existing glazed aluminum

partitions including doors within the thickness

of partitions and store away off-site in Client’s

approved location (Approx. 130m2)

Item

B Carefully pull-down existing ceiling tiles and

hangers and set aside in Client’s approved store

off-site (Approx. 240m2)

Item

DEMOLITION Carried

To Summary US$

72

Item No Description

Qty Unit Rate US$ Amount US$

B/F

NEW OUTFITTING WORKS

NEW PARTITIONS

A 3600mm high bronze anodized high-quality

double-glazed aluminum partitions with shatter

and sound proof tinted glass completes with

fixing accessories and fully secured doors

within thickness of partition walls in

Conference Room

63

M2

B Ditto but single glazed in offices and canteen

areas

53

M2

C 1500mm high built in Plexiglas aluminum

partition with worktop for Receptionist overall

size 1700mm long by 1200mm wide complete

with access door and window

1

Nr

D Allow for providing raised timber floor to make

room for electrical and Data cables in

conference room using well-seasoned and

treated timber well polished with ronseal polish

(Provisional)

32

M2

E Allow for making good floor tiles where

partitions have been removed (Approx. 3m2)

Item

NEW CEILINGS

F Provide and fix 600 x 600 x 12mm thick

acoustic ceiling tiles under concrete slab

complete with aluminum hangers and all

necessary support and fixing accessories

240

M2

NEW PARTITIONS AND CEILING Carried

To Summary US$

73

Item No Description

Qty Unit Rate US$ Amount US$

ROOF REPAIRS

A Carefully remove all cracked concrete to

underside of roof slab, prepare surface and

apply cement mortar (1:3) to conceal

reinforcement in roof slab (Approx. 40m2)

Item

B Provide and fix steel Acro props to underside of

roof slabs as medium-term support to structure

24

Nr

C 50 x 150mm treated sawn hardwood fixed to

underside of slab on top of Acro props

36

M

ROOF REPAIRS Carried

To Summary US$

74

Item

No

Description

Qty Unit Rate

US$

Amount US$

ELECTRICAL INSTALLATION

DEMOLITION

A Remove all existing electrical fixtures on the third-

floor complete including cabling, lights and

switches, socket fixtures and old Electrical

switchgears and put aside as directed by the Bank

Item

ELECTRICAL INSTALLATION (FIRST FIX)

Supply and install electrical ‘’first fix’’ for the

following generally in concealed plastic conduits

and 3-Compartments Dado Trunkings (Small Power

Requirements and Voice/Data Outlets), fittings,

including chasing, building in conduits and

trunkings and floor, through walls and ceiling with

circular boxes plugged for fixing and fitting MK

boxes

Light Points:

B Ceiling Mounted Light Points 40 Nr.

C Emergency Exit Light Points 4 Nr.

D 10Amp Light Switch Point 15 Nr.

E Circular Boxes 40 Nr.

ITC Network Installation

F Voice/Data Socket Outlet Point 50 Nr

G CCTV Camera Point 3 Nr

H Television/Satellite Socket Outlet Point 4 Nr

IP Addressable Fire Alarm System Points:

J Smoke/Heat Detector Point

12 Nr

K Break Glass Point 7 Nr

L Electronic Sounder Point 2 Nr

M 5-Zone IP Addressable Fire Alarm System Control

and Monitoring Panel

1

Nr

C/F US$

75

Item

No

Description

Qty Unit Rate

US$

Amount US$

B/F

Switched Socket Outlet Point:

A 13A, Double Socket Outlet (Raw Power) 80 Nr

B 13A, Double Socket Outlet (UPS Power) 80 Nr

C

13A, Single Socket Outlet 6

Nr

D 20A Hand Dryer Outlet 3 Nr.

E 30A, A/C Switch 12 Nr.

F 45A Cooker Outlet 2 Nr

Switchgear Point:

G 125A, 8-way TP&N MCB Distribution Board (DB-

Raw Power)

2

Nr.

H 125A, 8-way TP&N MCB Distribution Board (DB-

UPS Power)

1

Nr.

2 ELECTRICAL WIRING (SECOND FIX)

Supply and erect 1.5mm2 3-core pvc insulated cable

and pvc sheathed cables in concealed 20mm

diameter pvc conduit and circular boxes in circuit

wiring from Distribution Board, to Light Switch to

Light Point:

J Ceiling Lights Points 40 Nr

K Emergency Exit Light Points 4 Nr

Supply and erect 4.0mm2 3-core pvc insulated cable

and pvc sheathed cables in concealed 20mm

diameter pvc conduit in radial circuit wiring from

raw power socket outlets (3 sockets per circuit) to

Raw Power Distribution Boards

L 13Amp Double Socket (Raw Power)

80 Nr

M 13Amps Single Socket (Raw Power) 6 Nr

C/F US$

76

Item

No

Description

Qty Unit Rate

US$

Amount US$

B/F

ELECTRICAL WIRING (SECOND FIX)

CONT.:

Supply and erect 4.0mm2 3-core pvc insulated cable

and pvc sheathed cables in concealed 20mm

diameter pvc conduit in radial circuit wiring from

UPS power socket outlets (3 sockets per circuit) to

the TP&N LV UPS Power Distribution Boards

A 13Amp Double Socket (UPS Power) 80 Nr

Supply and erect 4.0mm2 3-core pvc insulated cable

and pvc sheathed cables in concealed 20mm

diameter pvc conduit in radial circuit wiring from

A/C Units Switch to the Raw Power TP&N LV

Distribution Board:

B 30Amps A/C Switch Point 12 Nr

Supply and erect 6.0mm2 3-core pvc insulated cable

and pvc sheathed cables in concealed 20mm

diameter pvc conduit in radial circuit wiring from

Cooker Outlet Point to Distribution Board:

C

45Amps Cooker Outlet Point 2

Nr

Supply and erect 4-core 35mm2 XLPE/PVC/SWA

armoured cable in concealed 50mm diameter pvc

pipe in radial circuit wiring complete with cable

glands and accessories from existing 200A TP&N

LV Busbar located on the Basement Floor in the

Main Electrical Switchroom to 3 x 125A, 8-way

TP&N LV Raw Power Distribution Boards located

on the third floor as shown on the drawing.

D 3 x 125A, 8-way TP&N LV MCB Distribution

Boards-Rea Power Supply

30

Nr.

Supply and erect 4-core 25mm2 XLPE/PVC/SWA

armoured cable in concealed 50mm diameter pvc

pipe in radial circuit wiring complete with cable

glands and accessories from New 20KVA UPS

located in the UPS Room on the Fifth Floor to 1 x

125A, 8-way TP&N LV UPS Power Distribution

Boards located in the Server Switchroom on the

third floor as shown on the drawing,.

E 3 x 125Amps 8-way TP&N LV MCB Distribution

Board-UPS Power Supply

45

Nr

C/F US$

77

Item

No

Description

Qty Unit Rate

US$

Amount US$

B/F

3 FITTINGS AND ACCESSORIES (THIRD

FIX)

3-COMPARTMENTS DADO TRUNKING

Supply and install 3-Compartments Dado

Trunking complete with fittings and accessories

for Small Power Requirements, Voice & Data

Outlets

A 3 Metre Lengths, Three Compartments PVC Dado

Trunking

30

Length

B 3 Compartment Dado Flat Angle 10 Nr

C 3 Compartment Dado Flat Tee 12 Nr

D 3 Compartment Dado External Angle 15 Nr

E

3 Compartment Dado End Cover 15

Nr

10Amp Light Switches:

F 1 gang 1-way switch – Legrand 8 Nr.

G 1 gang 2-way switch - Legrand 2 Nr

H 2 gang 1-way switch – Legrand 5 Nr

Switched Socket Outlets:

J 13Amps, Double Sockets Legrand 7300 - 70 80 Nr

K 13Amps, Single Sockets Legrand 7300 - 70 6 Nr

L 13Amps Double sockets - UPS Sockets Legrand

7301 -61. The Socket must carry a Red Rocker

switching control to identify all UPS Socket

outlets.

80

Nr

M 20A Hand Dryer Outlet 3 Nr

N 30A, A/C Switch complete with Neon Indicator -

Legrand

12

Nr

O 45A Cooker Socket 2 Nr

C/F US$

78

Item

No

Description

Qty Unit Rate

US$

Amount US$

B/F

FITTINGS AND ACCESSORIES (THIRD

FIX) CONT

Light Fixtures:

A 600 x 600mm 40W LED Low Energy Lightning-

IP44 Normal Light Fixtures

14

Nr

B 600 x 600mm 40W LED Low Energy Lightning-

IP44 Emergency Light Fixtures (3 Hours Non-

Maintained)

13

Nr

TOILET CEILING LIGHTS - BEGA TYPE No.

2543 - Impact Resistant Ceiling Light, Low

Voltage Fluorescent Lights, 13watts 900 Lumen, 1

TC-D. Protection Class IP 65 BEGA TYPE

C BEGA Round Shaped, c/w TC-TEL 13W GX24-

Q-2 Lamp

6

Nr

D 18W Low Energy LED Ceiling Downlight

Fixtures in store and switch room areas

2

Nr

E THORN AQUAFORCE-II – 1 x 36Watts

Fluorescent fittings. Body and diffuser made of

sturdy polycarbonate for impact resistance-High

Frequency and Emergency control gear. Rapid

installation with Quick-fix bracket installed in

ceiling. High performance in tough IP65

environments. Fluorescent fittings AQUAF2 - 1 x

36W T26

1

Nr

F

THORN AQUAFORCE-II – 1 x 18Watts

Fluorescent fittings. Body and diffuser made of

sturdy polycarbonate for impact resistance-High

Frequency and Emergency control gear. Rapid

installation with Quick-fix bracket installed in

ceiling. High performance in tough IP65

environments. Fluorescent fittings AQUAF2-1 x

18W T26

2

Nr

G 8-Watt Emergency Illuminated Exit Sign Box (3

Hours Non-Maintained) made from powder coated

steel and has 20mm entries and BESA Box

Fitting. Width: 390mm, Height: 190mm, Depth:

60mm Lamp Type: 1 x 8W T5 tube (included).

4

Nr

C/F US$

79

Item

No

Description

Qty Unit Rate

US$

Amount US$

B/F

HAND DRYER:

A Hygienic' Automatic Chrome hand dryers suitable

for damp environments and resistant to corrosion

for applications where aesthetics is the highest

priority plus the fact our chrome hand dryers are

also vandal resistant and high powered.

3

Nr

ELECTRIC WATER COOLER

B Supply and install 230V, 50Hz, Electric Water

Cooler that cools and dispenses the water to be

located in the reception area.

2

Nr

Sub-Mains Switchgears-Third Floor: Supply and

install the following boards, approved Sub-Mains

Switchgears, fuse etc.and including 25mm²

diameter concealed in pvc conduits and wiring

between to:

Supply, install and connect PROTEUS BX TYPE

B or Equal and Approved, 400/230V, 50Hz,

125Amps 8-way TP&N LV Distribution Boards

(Raw Power Sockets and Light Circuits) or Equal

and Approved as shown in Line Schematic for the

Third Floor.

Distribution Board shall comply with the

following features:

C 1. Bus bar shall be rated at 200A and are of a

one-piece construction

2. Clean line overall hinged door (key

operated lockable door optional) over

MCB's

3. Removable end plates, top and bottom

4. Easily removable interior for ease of

installation

5. All boards shall accept MCB’s and HRC

carriers

6. All boards shall accept 100A SP, DP, TP

modular isolation in out-going ways

7. Isolators shall be locked in ON or OFF

position

2

Nr

C/F US$

80

Item

No

Description

Qty Unit Rate

US$

Amount US$

B/F

FITTINGS AND ACCESSORIES (THIRD

FIX) CONT

Sub-Mains Switchgears-Third Floor: Supply and

install the following boards, approved Sub-Mains

Switchgears, fuse etc.and including 25mm²

diameter concealed in pvc conduits and wiring

between to:

Supply, install and connect PROTEUS BX TYPE

B or Equal and Approved, 400/230V, 50Hz,

125Amps 8-way TP&N LV Distribution Boards

(Raw Power Sockets and Light Circuits) or Equal

and Approved as shown in Line Schematic for the

Third Floor.

Distribution Board shall comply with the

following features:

A 1. Bus bar shall be rated at 200A and are of a

one-piece construction

2. Cleanline overall hinged door (key

operated lockable door ptional) over

MCB's

3. Removable end plates, top and bottom

4. Easily removable interior for ease of

installation

5. All boards shall accept MCB’s and HRC

carriers

6. All boards shall accept 100A SP, DP, TP

modular isolation in out-going ways

7. Isolators shall be locked in ON or OFF

position

1

Nr

B Supply, install and connect PROTEUS RANGE

100A, TP&N Switch Disconnector in the UPS

Room designed to provide compact wall mounted

installation with ample space for ease of

installation. Fully rated BS88 fuses fitted.

Manufactured to BSEN60947-3, 100A,

PROTEUS RANGE TP&N Fused Switch

Disconnect -UPS Room

1

Nr

C/F US$

81

Item

No

Description

Qty Unit Rate

US$

Amount US$

B/F

TESTING & COMMISSIONING

D Allow for Testing and Commissioning the

complete Electrical Services Installation for the

Third Floor to the satisfaction of the Engineer,

including labour which comprises the whole of the

labour associated with the rewiring and

replacement and installation of new fixtures and

making good all disturbed surfaces necessary to

form a complete installation and such tests,

adjustments as may otherwise be required to give

an effective working installation. Isolators shall be

locked in ON or OFF position

Item

Total Electrical Installation Carried

To Summary US$

82

Item

No

Description

Qty Unit Rate

US$

Amount US$

WALL MOUNTED INVERTER SINGLE

SPLIT AIR CONDITIONING UNIT.

DEMOLITION

A Remove all existing old Wall Mounted Single

Split Air Conditioning Units on the third floor

complete with fittings and put aside as directed by

the Bank

Item

Supply and install new Wall-Mounted Inverter Air

Conditioning Units with fast Cooling Energy

Efficient Inverter split Air Conditioner Units

complete with environment friendly refrigerant R-

410a and accessories including controllers and

anchoring brackets for the Outdoor Units as

specified on the drawing for the Third Floor

B 9,000BTU 2 Nr

C 12,000BTU 3 Nr

D 18,000BTU 6 Nr

E 24,000BTU 1 Nr

F Supply and install liquid and gas copper pipes

complete with pipe insulation and all necessary

accessories to complete the installation.

Item

G Supply and install 63A, 4Pole, IP65 Rotary

Isolator, manufactured to BSEN 60947 Parts 1 &

3. IP65 polycarbonate enclosure with padlockable

operating handle for security complete with Earth

& Neutral terminals fitted to terminate power

supply cable to A/C Outdoor Unit.

12

Nr

H Supply and install condensate drain pipes in

25mm pvc pipe complete with elbows, T-Pieces,

pipe solvent and all necessary materials to

complete the installation

Item

C/F US$

83

Item

No

Description

Qty Unit Rate

US$

Amount US$

B/F

WALL MOUNTED INVERTER SINGLE

SPLIT AIR CONDITIONING UNIT (CONT)

TESTING & COMMISSIONING

A Allow for Testing and Commissioning the complete

replacement of the Air Conditioning System

installation for the Third Floor to the satisfaction of

the Engineer, including labour which comprises the

whole of the labour associated with the installation

of new replacement units and making good all

disturbed surfaces necessary to form a complete

installation and such tests, adjustments as may

otherwise be required to give an effective working

installation.

Item

Total of Air Conditioning Unit Installation Carried

To Summary US$

84

Item

No

Description

Qty Unit Rate

US$

Amount US$

20kVA, 3-PHASE 400V~, 50HZ, HIGH

FREQUENCY ONLINE UPS

DEMOLITION

A Remove existing old 10kVA UPS's complete with

fittings and put aside as directed by the Bank

Item

B Supply, position and install 20kVA 3-Phase 400V~,

50 Hz, High Frequency Online UPS with Internal

Maintenance Bypass & Parallel Capability as

specified for the ADB Office Country complete with

battery packs, connecting battery cables and

accessories.

2

Nr

C Supply, install and connect 16mm2 4-core

Cu/XLPE/PVC Flexible cable &1 x 10mm2 single

core Yellow / Green CPC cable in radial circuit

wiring from UPS Units outputs to 63A Switch Board

located on the Fifth Floor complete with cable

glands, booths, lugs and all necessary accessories to

complete the installation

10

M

D Supply, install and connect 16mm2 4-core

Cu/XLPE/PVC Flexible cable &1 x 10mm2 single

core Yellow / Green CPC cable in radial circuit

wiring from Main Raw Power Electrical Switchgear

located on the Fifth Floor to New UPS Units

complete with cable glands, booths, lugs and all

necessary accessories to complete the installation.

30

M

Testing & Commissioning:

E Allow for testing and commissioning the complete

20kVA 3-Phase 400V~, 50 Hz, High Frequency

Online UPS with Internal Maintenance Bypass &

Parallel Capability Equipment’s complete with

battery packs and connecting battery cables as

specified for the ADB Office requirement for

performance

Item

Total New UPS Equipment’s Installation Carried

To Summary US$

85

Item

No

Description

Qty Unit Rate

US$

Amount US$

SUPPLY, DELIVERY, INSTALLATION &

COMMISSIONING OF ICT NETWORK,

CCTV, FIRE ALARM SYSTEM AND ACCESS

DOOR CONTROL SYSTEM FOR ADB

SIERRA LEONE OFFICE, 3RD FLOOR

BISHOP BUILDING

Networking/Data Points wiring

A Supply, delivery, wiring, conduit laying of computer

networking points with cat 6 cable (from switch to

individual points) through 16 / 20mm dia. HDP pipe

concealed in ceilings, walls and floors including

heavy type metal box and all necessary connecting,

fixing, insulation all complete.

(From IT Room on 5TH floor to the 3RD floor)

RJ-45 plugs to be included

600

M

Single Gang Face Plate with Information Outlet

B

Supply and installation of Computer Outlets RJ 45,

CAT 6, single, with required facia plate.

45

Nr

Category 6 Patch Panel

C Supply and Installation of 48-ports, rack mounted,

High impact, flame retardant, thermoplastic or

Powder coated steel, 22/24 AWG, CAT 6 RJ-45

patch panel for Data

1

Nr

Wall Mount Rack with Fan

D Supply, installation, testing and commissioning of

9U rack with fan designed to integrate wall-

mounting, easy equipment access, and cable

management in IT network. Adjustable rack rails

with square mounting holes to accommodate up to

12U of standard 19" rackmount equipment;

adjustable front and rear vertical rackmount rails;

Locking, reversible Plexiglass front door (2.7mm

thick) and locking, removable side panels.

1

Nr

E Supply and installation of:

Cisco nexus 9200L-48P-4X switch including smart

net

2

Nr

86

C/F US$

Item

No

Description

Qty Unit Rate

US$

Amount US$

B/F

SECURITY SYSTEM A Supplying and laying of CAT-6 UTP cable made of Cu

with 23/60 twin dc wire inside 20/25 mm. dia. HDP

materials including labour charge for laying CCTV

cables with pull boxes, metal box all complete and concealed wiring through ceiling, false ceiling, wall,

table whichever applicable including cable shoes/sockets

cable clamps and necessary connecting, fixing, chiselling of existing wall / ceiling and redoing the chiselled area

with cement and sand mortar as per the drawings, site

conditions, specifications and instructions All point wiring from each CCTV (IP cameras) to be

terminated to HUB switch.

(From IT Room on 5TH floor to specified locations on

the 3RD floor)

350

M

CCTV cameras to integrate with existing NVR

B

Model: alhua 3 Nr

FIRE ALARM SYSTEM

C Supply, installation, testing and commissioning of

Optical smoke detectors with base; auto compensation; digital processing algorithm; protected area - up to 120

sq. m.; low profile design; LED indication with 360

visibility; sensor status indication every 8 seconds.

16

Nr

D Supply & delivery of Fire alarm call points

Model type: C-TEC

3

Nr

E Supplying and laying of CAT-6 UTP cable made of Cu

with 23/60 twin dc wire inside 20/25 mm. dia. HDP

materials including labour charge for laying fire alarm cables with pull boxes, metal box all complete and

concealed wiring through ceiling, false ceiling, wall,

table whichever applicable including cable shoes/sockets

cable clamps and necessary connecting, fixing, chiselling of existing wall / ceiling and redoing the chiselled area

with cement and sand mortar as per the drawings, site

conditions, specifications and instructions All point wiring from each fire alarm to be terminated to

HUB switch. (From IT

Room on 5TH floor to specified locations on the 3RD floor)

300

M

87

C/F US$

Item

No

Description

Qty Unit Rate

US$

Amount US$

B/F FIRE ALARM SYSTEM (CONT)

DOOR ACCESS CONTROL SYSTEM

A

B

Supply, installation, testing and commissioning of

RFID door access control system with Electric

Magnetic lock (220 – 240V AC and 12V DC).

USB Reader capable to keep logs of access and

denial for at least 90days with a

Minimum 30 cards per lock to be supplied

Supply and Installation of IP Video Phon7 inches

screen size system with touch free sensor for

Gesture activated calling at main entrance and to be

integrated seamlessly with the door access control

3

3

Nr

Nr

WIRELESS ACCESS

C

Supply, install and test Wireless MIMO Access

Points as indicated in the diagram with the following

specifications:

Category – 806.11n

Band – dual band (2.4/5 GHz)

Note: Connection will be from IT Room on 3rd

Floor on the Nexus Switch to specified locations on

the 3RD floor.

Model: Cisco Air

2

Nr

.

88

Total ICT Network, CCTV, Fire Alarm System and Access Door Control

System Installation Carried To Summary US$

ITEM NO DESCRIPTION

AMOUNT US$

SUMMARY (OUTTING WORKS)

DEMOLITION

NEW PARTITIONS/CEILING

ROOF REPAIRS

ELECTRICAL SERVICES INSTALLATION

WALL MOUNTED INVERTER SINGLE SPILT AIR

CONDITIONING UNIT

20KVA. 3-PHASE 400V -, 50HZ, HIGH FREQUENCY

ONLINE UPS

ICT NETWORK, CCTV, FIRE ALARM SYSTEM AND

ACCESS DOOR CONTROL SYSTEM

TOTAL OF OUTFITTING WORKS Carried

To MAIN SUMMARY US$

89

MAIN SUMMARY

90

AMOUNT US$

MAIN SUMMARY

PRELIMINARIES

OUTFITTING WORKS

SUB-TOTAL US$

ADD

• INSURANCES (P.S) 1,500.00

• CONTINGENCIES – 5% OF SUB-TOTAL

GRAND TOTAL Carried To

CONTRACTOR’S BID US$

91