Lighting Control System

PJ- 30009-Warehouse Building For Public Prosecution

12-16570-Lighting Control System of 12

16570

LIGHTING CONTROL SYSTEM

Contents

PART 1 - GENERAL

1.1 WORK INCLUDED

1.2 DESCRIPTION OF WORKS

1.3 QUALITY ASSURANCE

1.4 CODES AND STANDARDS

1.5 SHOP DRAWINGS

PART 2 - PRODUCTS

2.1 LIGHTING CONTROL SYSTEM

2.2 DIMMING CONTROL PANEL

PART 3- EXECUTION

3.1 INSTALLATION

3.2 TESTING & COMMISSIONING

3.3 SPARE PARTS/EXTRA MATERIALS

3.4 WARRANTY



PART 1 – GENERAL 1.1 WORK INCLUDED

1.1.1 Compliance with relevant General Requirements of Electrical Services.

1.2 DESCRIPTION OF WORKS

The contractor shall supply, install, test, commission and maintain during warranty period intelligent lighting control and dimming systems for the various areas as indicated in the lighting layout drawings and as specified herein.

System shall be complete with lighting control panels, photo cells, dimmer racks, dimmer switches, dimmer module and scene control plates, override switches, all the required control and power cabling and terminations.

Lighting control shall be using addressable relay/contactors, timers and photocells. Dimmer racks shall be provided for the dimming of all public areas.

Dimmable ballast shall be provided for all light fixtures connected to dimmer switches.

Location of the override lighting control switches shall be at the ground floor security or at location as instructed by the consultant.

All external lighting including but not limited to the following, shall be controlled by the intelligent lighting control system:

- Roads and parking area lighting - Walkway lighting - Landscape lighting for the various trees and greeneries - Water feature lighting

1.3 Quality Assurance

Design, manufacture, testing and method of installation of all apparatus and materials furnished under requirements of these specifications shall conform to latest publications or standard rules of the following: a) DUBAI Distribution „Company (DEWA) regulations for electrical installation

works b) Department of Civil Defense requirements c) TECOM Standards and requirements. The quality Control/Quality Assurance duties shall be performed by the Contractor. The system of quality control verification shall be in accordance with ISO 9000 standards of quality assurance.

1.4 Codes and Standards

The following codes and standards to the extent specified herein, form a part of this specification. When an edition date is not indicated for a Code or Standard the latest



edition enforce at the time of proposal submitted shall apply.

IEC 60947-4 Contactors IEC 60947-5-1, IEC337-1, IEC 60536 Indication lamps, Push buttons, switches BSEN 60529, BSEN 60439 Low voltage switchgear and control gear BSEN 61008 Earth leakage circuit breakers BSEN 60898 Miniature circuit breakers BS7671 16

TH Edition, IEE wiring regulations

SUBMITTALS

The CONTRACTOR shall submit the following drawings and documents related with each electrical system for Consultant approval: Original catalogues for various proposed components. Schedule of Accessories and Fittings. Test Certificates.

1.6 Shop Drawings

Contractor shall submit detailed shop drawings including but not limited to the following for CONSULTANT approval: a) Single line system architecture drawings representing the entire system and

including all system components.

b) Point to point wiring diagrams for all system devices.

c) Floor layout drawings indicating all system components such as control panels, routing of network cabling, intelligent switches, etc.

d) Interfacing details with all other systems including fire alarm.

e) Typical installation details.

PART 2 - PRODUCTS

2.1 Lighting Control System

2.1.1 General 2.1.1.1 A two-wire bus cable shall link all the system devices (input, output, system support,

and networking, etc.) to each other. The bus cable shall be a twisted pair, screened /unscreened with solid conductors and shall be capable of handling information



exchange and supplying power to the bus devices. The bus cable shall be laid in the building in the form of a linear, star or tree structure similar to the power mains. The system shall support free wiring topology.

2.1.1.2 The system shall be completely de-centralized and programmable. The programming

shall be implemented via a computer located at a control location and having access level passwords. Any device in the system shall be accessed for programming from the PC location without having to manipulate the device locally.

Each device in the system shall be addressable via a software programmable physical address. Any device in the system shall communicate with any other device via software programmable group addresses. Each individual device will respond to only those group addresses for which they are programmed to do so. There shall be a non-volatile memory storing the physical address, group addresses & other software parameters for every device, thus making it intelligent.

2.1.1.3 It shall be possible to program any of the devices on-line at the working site without

affecting any of the system devices or the system operation as well as off-line prior to dispatch of the material to site.

2.1.1.4 The entire system shall consist of bus lines connected to each other via line couplers

that act as network filters and also provide communication between devices in different lines. In the event of failure of a device in one line, only the control functions controlled by that device shall be affected and the device failure report shall be printed out with the date and time of failure.

2.1.1.5 Power supply module shall be provided as recommended by the manufacturers. In case

of power failure, the operation and programming of the system shall not be impaired.

2.1.1.6 The diagnostic modules shall scan the system for any faults in the bus wiring, failure of any of the devices and generate reports displaying the physical address of non-communicating devices.

2.1.1.7 Each of the devices shall have a built-in push button along with a LED. The LED shall lit

in the event the push button is pressed and if there is power to the device, thus depicting that the device is communicating in the system.

2.1.2 Control System Concept

2.1.2.1 The programmable lighting management system shall consists of three levels of

control:

a) Central PC software for time based control and manual override by the operator. The software shall consist of graphics based overview of the entire building, floors and going up to the individual rooms. It shall have the necessary timer modules to control the circuits in the form of various groups. It shall be possible to pre-program the time channels in advance with special holiday programs, weekly programs, etc. up to the year 2040.

b) In the event the PC is not operational or is switched off, the standalone mode shall control the lighting circuits as per programmed times. This shall be ensured via a controller programmed with the same timer schedules as that of the central PC software.

c) A second level of standalone operation shall also be possible via local timer



modules capable of being programmed with switching times locally without the need to connect a PC. 100-channel timer capable of being programmed with at-least 128 time schedules shall be provided for each network group of 64 devices to ensure this standalone operation. This shall ensure that the system

remains operational at all times in the auto mode.

d) All other circuits which are controlled based on daylight, local switches, etc.

shall at all times be working in the standalone „Auto‟ mode with monitoring and override control possible from the central PC.

2.1.3 Lighting Control Concept

The low voltage system switches shall have indication for „On‟ and „Off‟ status with „Red‟ and „Green‟ colors with a possibility to reverse them via software. In the case of circuits switched in parallel from multiple signals, the switch „LED‟ shall display the true status of the circuit based on the latest signal sent to the particular circuit. It shall be possible to control any circuit in the system from any of the switch channels to ensure all channels are available for entire control of the system. A controller device consisting of at least 100 timer channels (groups) in the form of lighting scenarios shall control circuits on a particular network group (line) so as to have local standalone operation. It shall be possible to send signals from a timer channel in one network to circuits in another network if programmed to do so. This is to ensure that all timer channels are available for control of all circuits in the system. Each timer shall be capable of being programmed locally with timer programs for any of the channels combined together, without the need to connect a PC. Each of the channels shall have a manual push-button to over-ride the channel to „On‟ or „Off‟ irrespective of the time programs. In addition, each channel shall have a „Off-Auto-Manual‟ switch for local over-ride purpose. The timer shall have a built-in battery back-up to ensure that the timer is always operating even in the event of power failure. This timer device shall be in addition to the PC software time schedules to ensure uninterrupted stand-alone operation of the system at all times. Lighting control at various areas shall be generally as indicated hereunder:

2.1.3.1 Guest Floors Corridors/Lift Lobby

a) All light connected to emergency power distribution board shall be „ON‟ all the time.

b) Lighting circuits connected to the normal power distribution boards shall be controlled through programmable timer channel.

c) Actual time schedule shall be as per end-user requirements.

2.1.3.2 Main Lobby Entrance

Automatic scene control based on time and function using dedicated dimmer racks, and override scene control plates. Features of scene control plate, finishes and their location shall be to Architects approval.

2.1.3.3 Main Kitchen, Pantries.



Using time schedule and override switches.

2.1.3.4 Back of House Corridors, Lobby. Using time schedule Actual time schedule shall be programmable as per End-user requirements.

2.1.3.5 Staircase

Lighting control shall be by timer and intelligent push button switch. All lights, which shall be ON by the push button, switch shall be automatically turned OFF after a predetermined time period which is programmable be the end-user.

2.1.3.6 Offices

Lighting control shall be by timer channels and intelligent lighting cont rol switch in each office. Lights in individual offices shall be turned ON/OFF using the intelligent switch during working hours, however the system switches shall be over ridden by timer schedules during non working hours and on holidays. All lights in offices shall be normally OFF during non working hours and on holidays, however it can be overridden by the intelligent switch and shall be turned off automatically at the end of a pre-determined time period or at a particular time which is programmable by the end-user.

2.1.3.7 Meeting Rooms

Lighting control by timer channels and intelligent lighting control and dimming switch for dimming the lighting during presentations. Dimming shall be part of the intelligent lighting control system, and shall be connected to the A / V system of the meeting room for automatic dimming during presentation.

2.1.3.8 External Lighting

External lighting shall be switched ON/OFF based on available daylight and time schedule. A light value switch capable of switching up to three lighting groups where each individual channel has a separate switching set point shall be used. The brightness range of the set points shall be adjustable form 20 to 20000 lux or as agreed with the CONSULTANT at the time of commissioning. A light sensor shall be connected toe the switch to detect daylight. On and OFF timing of the various group of lighting shall be different, it shall be possible to program/reprogram the system accordingly. Introduce time delays between various switching in order to avoid huge inrush current disturbance to the power supply system.

2.1.3.9 Basement Parking

Lighting control by intelligent addressable light sensors and timer channels.



Selected circuits at the basement parking shall be switched off during the day to reduce power consumption when no movement is detected. Detection will be by movement sensors strategically placed to give the required coverage. During evening as per pre-programmed times, alternate circuits or as decided at the time of commissioning shall remain „ON‟ while the others shall continue to be controlled based on movement. The movement sensors shall have a built – in lux sensor with an adjustable setpoint so as not to switch „ON‟ circuits even after detecting movement due to sufficient natural light. There shall also be an adjustable „OFF‟ delay on the movement sensor from 1 sec to 32 sec mins. So as to ensure that circuits are not switched „OFF‟ immediately. Further, the movement sensor shall incorporate a “manual-auto-off” switch for maintenance and local override purpose.

2.1.4 Central Controller Software

2.1.4.1 The Central PC will comprise of state of the art Pentium IV duel core 34 GHZ with 19”

monitor with at least 2 GB RAM and 120 GB hard disk, graphics VGA, Ethernet card, etc… to meet or exceed the configuration required by the graphics software.

2.1.4.2 The software shall administer various access levels for different user accounts to

ensure responsibility and accountability in the operation of the system.

2.1.4.3 The software shall provide customized graphics screens giving a full graphics display of the entire building along with floor plans, partition layouts, circuit layouts in the individual rooms, etc.

2.1.4.4 The software shall provide real time monitoring of the entire system and shall display

active status of each lighting circuit along with the run time hours and generate maintenance schedules when the circuits have reached their threshold set points for run hours.

2.1.4.5 It shall be possible for the user to access any individual room for monitoring and

controlling the lighting circuits. The various screens shall be freely linked to each other be reached by a navigator.

2.1.4.6 Each circuit shall be graphically customized to contain operational characteristics

available in the system or by a link to an external database. This information shall be displayed by passing the mouse cursor over the respective circuits.

2.1.4.7 The software shall have the interface to import and administrate graphics files having

standard formats such as Bitmap (BMP), Windows Metafile (WMF) and Enhanced Metafile (EMF). Further, it shall be possible to add a huge variety of active elements to these files for visualization and easy understanding.

2.1.4.8 The software shall enable repeat interrogatory sweeps to be programmed through the

night or any other times to extinguish lighting which may have been left on locally.

2.1.4.9 The timer library in the software shall be programmable. It shall have the necessary timer modules to control any of the circuits individually or in the form of groups, which can be selected and changed as and when desired. It shall be possible to pre-program the time channels in advance with special holiday programs, weekly programs, etc. up to the year 2040.

2.1.4.10 The system shall be interlocked with the fire alarm system so as to switch all



lights ON in case of fire.

2.1.5 Lighting Control Modules (For ‘On-Off’ Switching Control)

2.1.5.1 The lighting control modules shall be DIN rail mounted consisting of either four or eight

individually programmable integral relays (contactors).

2.1.5.2 Each of these contactors shall be rated 16 A/AC1, suitable for switching loads

with high switch-on peaks, and capable of switching resistive, inductive, incandescent, and fluorescent loads without any derating. It shall also have a capacity load rating of at least 200 microfarads.

2.1.5.3 The output states of each of the four relays shall be displayed on the front.

Each of these relays shall be latch-on type with manual operation (override) possible even without power to the system.

2.1.5.4 In the event of power failure or bus wiring failure or control module failure, each

of the four relays shall attain a pre-programmed fail-safe position („On‟, „Off‟ or „As it is‟).

2.1.5.5 The control modules shall be capable of been programmed with different

applications to suit site requirements. The application for which a relay has been programmed shall apply irrespective of the signal from which it is switched.

2.1.5.6 Each of the relays shall be capable of being programmed with its own „On‟ and

„Off‟ delays which is applicable irrespective of the signal from which the relays are switched.

2.1.5.7 The control modules shall receive its operating power supply from the same

bus cable without any other power supply.

2.1.5.8 Each of the control module shall have its own individual address and shall be capable of being programmed from the central PC for the purpose of changing parameters without the need to access the module locally.

2.1.6 Lighting Control Panels (LCP’S).

There shall be a dedicated Lighting Control Panel (LCP) for every DB. The LCP shall house the system devices and the related control equipment depending on the no. of circuits being controlled. This is to ensure the power wiring between the DB‟s and the control modules inside the LCP‟s is kept to a minimum. The LCP‟s shall be surface mounted IP65 polycarbonate enclosures together with built-in DIN-rails for easy installation of the control equipment.

2.1.7 System Programming

The contractor shall allow for programming the system to operate as per the Consultant instruction at site and shall allow for reprogramming of the system if necessary during the maintenance period in accordance to the end user requirements.

2.2 Dimming Control Panel

General



The contractor shall supply, install and commission dimmer racks as specified hereunder and as indicated on the drawings.

2.2.1 Dimmer Modules Cases

Dimmer Modules shall be encased in Anodised Aluminium or polycarbonate ABS cases with solid aluminium chases cases. The power control circuitry shall be protected from accidental interference by means of a one section cover. All adjustment potentiometers where required shall be accessible through this cover to allow the setting of lighting levels and maximum/minimum levels.

Units shall be completely pre-wired by the manufacturer. The contractor shall be required to provide input feed wiring, load wiring and control wiring which terminates to a set of clearly marked low voltage terminals.

Units shall contain input miniature circuit breakers rated for electrical safety and protection.

Units shall contain a bypass switch which enables the power to bypass the load control circuitry.

Internal wire used within the units shall be to British Standards and have a 105 deg. C temperature rating. All wiring shall be harnessed with cable ties or wire ducts at sufficient intervals to present a neat orderly appearance. All connections made during installation shall be clearly labelled terminals.

Encapsulated thyristor pairs/ IGBTs shall be used to control the power applied to the load. They shall be capable of withstanding surges without impairment to performance. The units shall be voltage regulated so that a + 10% change in line vol tage shall cause no more than a + 0.5% change in output voltage.

The units shall provide a smooth and continuous "squarelaw" dimming characteristics throughout the operating range.

The units shall be 98% or greater efficiency at full intensity and full load.

Units shall operate at 0-40 deg. C ambient environment and racks shall be cooled by natural convection or by forced ventilation.

The units shall incorporate filtering circuits that reduce RF1 interface to levels deemed acceptable by EN50081-1, EN50082-1, IEC1000-2-2

The units shall be derated by 50% when used for controlling inductive loads so as to avoid nuisance tripping of MCBs. They should also be capable of controlling Fluorescent Loads with suitable ballasts.

Dimmer modules shall be rated as shown in the load schedules and shall be provided for each circuit as a single channel control.

2.2.3 Dimmer Racks



Dimmers must be housed in sheet steel purpose built racks which will accept plug in dimmer modules, microprocessors and primary circuit MCB. The rack should be wired for front access with connections for extra low voltage control and load wiring, separate gland plates should be provided at top and bottom of rack for control and mains/load wiring.

Earth leakage protection should be provided as incomer.

2.3.4 Microprocessors

Control of the dimmers shall be through channel microprocessors linked with addressable control plates. Microprocessors shall be of high reliability with self checks to ensure system integrity in all environments. Storage of default levels shall be through non volatile memory, that retains these settings even when power is switched off. It shall be possible to programme a minimum of 100 scenes. The control signal to the dimmer modules shall be 0.5V.

A 2 wire balanced data high way is to be used between control plates and the microprocessors.

The microprocessor shall be capable of receiving programmed instructions from the control plates to control. a) Level Intensities b) Fade Rates c) Individual Scenes d) Individual Channels/Circuits e) Link scenes with preprogrammed scenes fading from one to another on a time

basis. The system shall be interlocked with the fire alarm system such that in case of fire the lighting level shall go up to full intensity regardless of the set illumination level.

2.2.5 Hand Held Programmer

A hand held programmer shall be supplied for programming of the system.

The unit shall be designed for ease of operation and shall not require complex programming.

The unit shall be capable of programming lighting level information, fade rates and link scenes for all dimmer channels on a particular data highway. Programming can be performed either 'on line' or 'off line'.

2.2.6 Dimmer Controls

Multiple Scene control with illuminated Led Push buttons giving 'scene 1; scene 2; scene 3; scene 4; off plus individual raise/lower push buttons for each circuit being controlled from the plate and with a jack socket to accept the data plug from the hand



held programmer shall be used. The plate finish of the controller shall be similar to the adjacent electrical accessories.

PART 3 - EXECUTION

3.1 Installation

Design, manufacture and method of installation of all system components shall conform to latest rules and requirements of the following:

a) Dubai Civil Defense b) ETISALAT c) Relevant BS codes d) IEE wiring regulations e) CIBSE

Contractor shall install all lighting control system equipment shown on the relevant drawings and required as per the specifications described in this section, all as per manufacturer‟s recommendations and complying with the above regulations.

3.2 Testing & Commissioning

a) Check for installation of lighting control panels a site.

b) Check for installation of devices in the panel and in the field.

c) Check the wiring and termination of the bus cable for all the system devices.

d) Check the wiring and termination of the circuits in the lighting control panel.

e) Manually override each circuit using the override On-Off switch provided for each circuit in the relay output module.

f) Test the respective lighting circuits to be ON as per the Electrical Load

Schedule provided by the M & E contractor.

g) Switch „On‟ the power supply to the lighting control panel with system devices.

h) Program the TP-controller timer groups as per Consultant requirements for standalone operation of the lighting control system.

i) Switch ON & OFF the individual gang of the LV Push Button Switches &

check that the respective programmed circuits are switched ON & OFF accordingly.



j) Switch ON the power supply for standalone operation of the Lighting Control System.

k) Demonstrate and explain the system operation to the site technicians.

l) Hand-over the control system to Consultant authorized personnel.

3.3 Spare Parts/Extra Materials

3.3.1 The contractor shall supply to the owner‟s stores spare parts for two years operation, from the date of final handing over of the project, as generally, but not limited to the items listed hereunder:

a) A minimum of 1% of the total number of switches, contactors, dimmer

modules etc.) for any other accessories used in the project.

b) Any other items as recommended by the manufacturer to cover the period indicated above and to consultant approval.

3.4 Warranty From the date of issuance of the „Taking over certificate‟ the system must be unconditionally warranted for minimum of 2 years.

END OF SECTION 16570

Lighting Control System

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