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4719.02 1 Addendum No. 1

ADDENDUM TO CONTRACT DOCUMENTS

AND SPECIFICATIONS

Henry Street Interceptor Project For the City of New Iberia, LA

ADDENDUM NO. 1 SEPTEMBER 19, 2014

The following items shall take precedence over referenced to counterparts in the specifications, contract drawings and any other documents in conflict herewith. Item No. 1 PRIOR APPROVAL LIST: The following manufacturers’ equipment may be

considered for use on this project (they have received prior approval subject to the following):

The Engineer may allow minor deviations subject to the Engineer’s judgment as to whether such deviations would detract from the quality, reliability or function of the equipment. The equipment manufacturer shall be responsible for any and all redesign required to accommodate their equipment. All drawings and calculations detailing the deviations from the plans and specifications shall be submitted to the Engineer with the shop drawings for approval. Drawings must be in AutoCad 2010 or more recent format and must be stamped by an Engineer licensed in the State of Louisiana. Submit both hard copies and electronic copies for approval. Prior approval of other manufacturers’ equipment shall in no way relieve the Contractor of responsibility for submitting the specified shop drawings for approval or complying fully with all provisions of the specifications and drawings. If prior approved equipment is used, the contractor shall, at his own expense, make any changes or additions in the structures, piping, electrical, etc. as necessary to accommodate the equipment. If engineering is required due to substitution of prior approved equipment, the contractor shall furnish and pay for all such engineering services. No qualifications or exceptions listed in prior approval submittals shall in any way alter or serve as substitute provisions relative to this contract. Note: Although prior approval allows the manufacturer to bid the project in accordance with the documents, many of the features/items required by the specifications were listed as optional equipment by the manufacturer (e.g. stainless steel guides, two moisture probes, non-sparking assembly, etc.). It is the Contractor’s responsibility to ensure that the products used to determine the bid are in FULL compliance with the specifications, including the costs for the options required to fully meet the specifications.

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4719.02 2 Addendum No. 1

Section Description of Items Approved Mfr. 11300 Submersible Raw Sewage Pumps Chicago Pumps Item No. 2 REFER to the Specifications, Technical Section 02719, Part 2 – Products, Pipe, Valve

and Fitting Insulation. Goodtemp Thermal Industrial Insulation by Howred Corp., and Childers Aluminum Insulation Covers, may be substituted in lieu of the Thermazip insulation specified. The system shall include all fittings, strapping, etc., as provided by these manufacturers. All other requirements with regard to heat tracing and installation of the insulation remain in force.

Item No. 3 REFER to the Specifications, Technical Section 02730 and 02731. Note that all restored

pavement shall conform to the minimum course thicknesses outlined on the details for such work.

Item No. 4 REFER to the Specifications, Technical Section 02731, Measurement and Payment, B.

Force Mains. Delete the first sentence of this section and substitute the following:

Payment for force mains shall be based on the actual number of linear feet of pipe measured in place at the price bid per foot for each classification of force main listed on the bid form, by diameter and pipe material, as designated on the Bid Form.

Item No. 5 REFER to the Plans, Sheet 11, Detail 10. Substitute the attached detail for this detail for

driveways and sidewalks. Item No. 6 REFER to the Specifications. DELETE the Division 16 – Electrical Specifications.

SUBSTITUTE the attached electrical specifications. Item No. 7 REFER to the Specifications. DELETE Section 02821 – Vinyl Fencing & Gates. The

fencing and gates on the project are wooden as called for on the plans. Received by: Signed: Dated: Company:

FAX THIS SIGNED PAGE TO DOMINGUE, SZABO & ASSOCIATES, INC. AT 337-237-7132; OR RESPOND TO EMAIL ACKNOWLEDGING RECEIPT OF ADDENDUM

End of Addendum No. 1

ABCD

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SECTION 16000 - ELECTRICAL

SP50136.doc 1 08/12/14

DETAILED SPECIFICATION FOR

ELECTRICAL WORK

ARTICLE 1. GENERAL

The general conditions are a part of this specification and the Contractor shall consult them

in detail for instructions pertaining to his work. He shall also consult all other sections to

determine if any other work is to be performed.

All work shall be done in accordance with the National Electric Code and with local and

state ordinances governing this class of work.

ARTICLE 2. SCOPE OF WORK

The work covered by this section includes the provision of all labor and material required

to complete installation of the electrical system as indicated in the accompanying plans.

The work includes, but shall not be limited to the following:

provide and install all conduit, wiring, terminal blocks, enclosures, receptacles, conduit

seals, etc.;

install the control panel furnished by the pump supplier with motor starters, pump

alternators and level controls;

connect all electrical equipment;

provide and install aluminum support frames, Unistrut, brackets, and other mounting

materials;

provide and install all lighting fixtures, complete with lamps;

demolish and remove existing electrical equipment where called for in the plans;

provide and install all wiring, conduit, junction boxes, etc., for control wiring;

provide and install level control ultrasonic transducer, tip float switches and supporting

brackets.

All electrical equipment installed or connected by contractor shall be in strict accordance

with the instructions of the manufacturer.

This contractor is referred to the civil plans for information regarding details and

dimensions.

The contractor shall install his work to meet existing conditions as found at the site and

shall accommodate the work of other trades.

The electrical system as set forth herein is intended to be a working system which is in

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compliance with all required codes and standards; therefore, any discrepancy or omission

shall be reported prior to bidding.

ARTICLE 3. REFERENCES

Standards of the following organizations and the individual standards named shall be

followed as though they were part of this specification (unless otherwise noted):

Underwriters Laboratories (UL)

Southern Standard Building Code

State Fire Marshall's Act

The Institute of Electrical and Electronic Engineers

National Board of Fire Underwriters

National Electrical Code

National Electrical Manufacturers Association

Edison Electric Institute

Insulated Power Cable Engineers Association

American National Standards Institute

American Society for Testing Materials

National Electrical Safety Code

National Fire Protection Association

Applicable Rules and Regulations of the local

utility companies providing services

ARTICLE 4. REGULATORY REQUIREMENTS

Observe and comply with all applicable federal, state and local laws, municipal ordinances,

codes and the rules and regulations of all authorities having jurisdiction over construction

of the project.

Adhere to the following standards, where applicable.

NEMA ICS-1-1983 General Standards for Industrial Control and Systems

NEMA ICS-2-1983 Industrial Control Devices, Controllers and Assemblies

NEMA ICS-3-1983 Industrial Systems

NEMA ICS-4-1983 Terminal Blocks for Industrial Use

NEMA ICS-6-1983 Enclosures for Industrial Control and Systems

NFPA 70E Electrical Safety Requirements for Employee Workplaces

NFPA 79 Electrical Standards for Industrial Machinery

NFPA 328 Flammable and Combustible Liquids and Gasses in Manholes, Sewers and

Similar Underground Structures

NFPA 820 Standard for Fire Protection in Wastewater Treatment and Collection

Facilities

ANSI B 286-74 (R-1985) Copper Conductors for Use in Hookup Wire for Electronic

Equipment

IEEE 74-1958 Standard Test Code for Industrial Control

ISA RP60.1 Control Center Facilities

ARTICLE 5. HAZARDOUS AREAS

The contractor should be aware that certain areas of each pump station are considered

"hazardous" areas as defined in the National Electrical Code. Special wiring techniques,

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materials and equipment must be used in such areas. The contractor is referred to Articles

500 and 50l of the NEC for detailed requirements for electrical work in hazardous areas.

All equipment and material used in hazardous areas must be suitable for use in such areas.

ARTICLE 6. REJECTED WORK AND MATERIAL

Should the contractor introduce any materials different from that sort and quality described

in the specifications or shown on the plans, it must be immediately removed from the

premises when requested by the Engineer.

ARTICLE 7. ADDITIONS AND CHANGE

All electrical work is to be done in strict accordance with this specification and the

accompanying plans. Any alterations or changes in design or material without the

Engineer's prior approval and knowledge are prohibited.

ARTICLE 8. SHOP DRAWINGS

Shop drawings shall be submitted for the Engineer's approval prior to proceeding with the

work and within thirty (30) days of awarding of the contract. Included and in particular are

shop drawings for lighting fixtures, other electrical equipment and all other such drawings

as the Engineer may require. Review and approval of any drawings by the Engineer shall

not release the contractor from responsibility for errors and omissions in such drawings.

ARTICLE 9. STANDARDS OF MATERIALS AND WORKMANSHIP

All work shall present a neat and finished appearance when completed and shall be

executed in a workmanlike manner. All materials furnished by the contractor shall be new

and listed by the Underwriters' Laboratories (UL) as conforming to its standards.

Equipment shall meet NEMA standards wherever such standards have been established.

ARTICLE 10. GUARANTEE

Subcontractor for this work shall be required to keep the work installed by him in repair

and perfect working order for one (1) year from the date of final acceptance.

ARTICLE 11. MATERIALS AND PRIOR APPROVAL

The contractor shall base his proposal on materials as specified herein. Specific mention of

a manufacturer or trade name is not intended to indicate preference but to indicate a type

and standard of quality. However, any substitutions for materials specified herein must be

submitted to the Engineer for approval seven (7) days prior to the bid date.

ARTICLE 12. LAWS, PERMITS AND INSPECTIONS

This contractor shall at his own cost obtain necessary permits, pay all legal fees and

charges and comply with the state and municipal building and safety laws, ordinances and

regulations relating to building and public health and safety.

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ARTICLE 13. SAFETY PRECAUTIONS

The contractor shall furnish and place proper guards for prevention of accidents. He shall

provide and maintain any other necessary construction required to secure safety of life or

property. This requirement will apply 24 hours per day until acceptance of work by the

Owner and shall not be limited to normal working hours.

ARTICLE 14. SITE INSPECTION

The contractor shall visit the site and familiarize himself with the difficulties which may be

encountered in execution of the work.

ARTICLE 15. DOCUMENTATION

Three copies of all descriptive data, printed installation instructions, operating and

maintenance instructions and parts lists for each item of material or equipment supplied by

the contractor shall be delivered to the Engineer.

Shop drawings, descriptive data, printed installation instructions, operating and

maintenance instructions and parts lists shall be neatly bound in a hard-cover three (3) ring

binder and turned over to the Engineer before acceptance of the project.

ARTICLE 16. RECORD DRAWINGS

The contractor is to be provided with a set of drawings by the Engineer on which he is to

record any changes required as the result of unforeseen difficulties. The drawings shall be

submitted to the Engineer in good condition.

ARTICLE 17. WORK IN OTHER SECTIONS

The contractor is referred to other sections of these specifications for other work he may be

called upon to do and for additional requirements which apply to the equipment being

supplied.

ARTICLE 19. WIRING DEVICES

Toggle switches shall be Hubbell 1121-I (or equal).

Ground fault interrupter (GFI) type duplex receptacles shall be Hubbell #GF5362-I (or

equal).

All receptacles shall be installed in suitable outlet boxes, rigidly fastened to walls. All

wiring devices shall be installed in FS boxes and shall be provided with cast aluminum

snap covers suitable for wet locations. Hubbell #WPFS26 (or equal) for GFI receptacles

and Hubbell #7423WO (or equal) for toggle switches, shall be provided. Provide “in-use”

receptacle covers where called for in the plans.

ARTICLE 20. RACEWAYS AND FITTINGS

All conduit used above grade shall be galvanized rigid steel unless otherwise specified in

the plans. All conduit below grade shall be SCH 40 PVC. Convert below grade.

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Galvanized Rigid Steel Conduit: This conduit shall be galvanized inside and outside by the

hot-dip or electro-galvanize processes. (ANSI - C80.1 and UL-6).

PVC Conduit: This conduit shall be rigid schedule 40 or 80 PVC conduit rated 90oC and

UL listed. (NEMA TC 2 and UL-651).

All wiring is to be installed in raceways, except within the wet well.

All outdoor conduit connections from above to junction and pull boxes, conduit fittings,

outlets, disconnect switches, etc., must be watertight.

Raceways shall be supported by pipe straps, hangers, or other approved fastening or

support devices spaced not more than 8' apart with a minimum of two supports for each 10'

length.

Flexible metal conduit shall be weatherproof or explosion proof, as required and installed

in strict accordance with the provisions of Article 350 or 501 of the NEC.

ARTICLE 21. CONDUCTORS AND WIRING

All conductors are to be copper.

Circuit conductors shall have THW or THWN 600 V. insulation.

Conductors #8 and larger shall be stranded.

No conductors for power and lighting branch circuits shall be smaller than #12.

Conductors shall be color coded throughout the system. On larger conductors paint or tape

bands may be used.

ARTICLE 22. LIGHTING FIXTURES

New fixtures are to be thoroughly cleaned prior to installation and shall be furnished

complete with lamps. Refer to the plans for fixture types.

ARTICLE 23. CONDUIT SEALS

Conduit seals shall be furnished where called for in the plans. Seals shall be the type EYS

as manufactured by Appleton or Crouse-Hinds. Sealing compound shall be "Apelco" or

"Chico A".

ARTICLE 24. CONTROL PANEL AND LEVEL CONTROLS (BY PUMP SUPPLIER)

GENERAL: All electrical work shall be in accordance with the National Electrical Code.

Certain areas of the pump station are considered "hazardous" as defined in the National

Electrical Code and all equipment shall comply with NEC Article 50l. The motor

horsepower shown in the electrical plans is a minimum horsepower. All equipment and

wiring within the control panel shall be sized as required for the motors which are

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furnished under other sections of the specifications even though the motor horsepower is

greater than that show in the electrical plans.

ENCLOSURE: The control panel enclosure shall be NEMA-4X and tamperproof and shall

have a drip hood top. A resistance heater and thermostat shall be furnished to prevent

condensation in the enclosure. The door shall be hinged and gasketed. A means for

padlocking shall be provided. No switches or indicators shall be visible on the exterior

door but shall instead be mounted on an interior door which shall make the panel dead-

front. Switches and indicators shall be identified with engraved plastic nameplates or other

approved means.

POWER DISTRIBUTION: Electrical service to the control panel will be 240 volt, three-

phase, four-wire which will be fed from an adjacent fusible switch. Power shall be

distributed to each motor starter. Appropriate motor overload/overcurrent protection shall

be provided. A single-pole 120V 20-amp auxiliary power circuit breaker, a single-pole

120V 20-amp control power circuit breaker and a 120V 20-amp single-pole lighting circuit

breaker shall be provided. All circuit breakers shall have an interrupting capacity of at

least 10,000 amps RMS symmetrical. A properly sized main circuit breaker shall be

provided. The main breaker shall be interlocked with the interior door so that power must

be off for the door to be opened. A ground fault interrupter type auxiliary power receptacle

shall be provided within the enclosure.

PROTECTION: In addition to a circuit breaker for overload and short circuit protection,

the service entrance shall be provided with a lightning arrester and a surge suppressor.

Phase failure/unbalance and phase reversal protection shall be provided for the control

panel. Motors shall be protected by overload relays which are a part of the motor starters

and by the submersible pump heat sensors. A seal failure alarm shall also be provided for

each motor. Pumps shall not be stopped if a seal failure occurs.

MOTOR STARTERS: Circuit breaker type full voltage non-reversing motor starters shall

be furnished. Starters shall be equipped with a Class 20 electronic overload relay. Starters

shall meet NEMA standards. IEC starters will not be acceptable. Provide a Timemark

#2652 line voltage monitor relay (or equal) unless the solid-state overload protection

provides the equivalent (if so, set the starter for phase failure protection). Approved

manufacturers include Square "D", Cutler Hammer and Siemens; prior approval is required

for all other manufacturers.

ULTRASONIC LEVEL CONTROLS: An ultrasonic level controller shall be furnished

and installed through the control panel door so as to be visible with the inner door closed.

The unit shall be capable of sensing the liquid level in a sewage wet well. At least 5 contact

closures corresponding to levels shall be made available for use in controlling the pumps.

The ultrasonic transducer installation shall be in compliance with the NEC for hazardous

locations (Class 1 Division 2 Groups C and D). The unit shall operate at 120 VAC. All

required mounting hardware and accessories necessary to mount or install the transducer

where shown in the plans shall be provided. The level system shall be the MultiRanger

100/200 as manufactured by Milltronics. The ultrasonic transducer shall be the Milltronics

XPS 10F. (Or prior approved equal).

TIP FLOAT SWITCH LEVEL CONTROLS: Provide tip float switches for redundant

control of pump operation. The floats and cords shall be intended for use in raw sewage

wet wells. Refer to the plans for additional information and installation details. The tip

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float manufacturer shall be as requested by the Owner. Intrinsically safe relays shall be

provided for each discrete tip float switch input. The intrinsically safe relays shall be listed

for Class 1 locations. A "redundant off" tip float switch shall be provided connected to stop

the pumps and provide a low level alarm if the "all off" level control fails.

PUMP OPERATION: Pump operation shall be determined by either the tip floats or the

ultrasonic level system. A selector switch shall be provided for this purpose. H-O-A

switches shall be provided for both pumps. The pumps shall alternate automatically. A lag

pump time delay start shall stagger the restart of both pumps after a power outage. The

control circuitry shall be designed so that if a pump is taken out of service, the normal

sequence of operation shall be automatically interrupted and the disabled pump removed

from its position in the alternating sequence. The remaining pump shall then operate on

each successive cycle as the lead pump at the lead pump run level. When the disabled

pump is placed back in service, normal alternating operation shall automatically resume.

Should the lead pump fail on overload, the lag pump shall again operate at the lead pump

operating liquid level. The alternation of pumps must take place with both pumps off. A

lag pump time delay start is required to stagger the restart of both pumps after a power

outage. A manual override switch shall be provided to lockout the alternator and allow the

operator to select either pump as the lead.

CONTROLS, INDICATORS AND PILOT DEVICES: The following shall be provided on

the interior door for each motor: hand-off-auto switch, pump running pilot light, pump

overload pilot light, elapsed time meter, seal failure pilot light and manual reset switch.

Provisions for operation of red and green station status lights external to the control panel

shall be provided. The red light shall flash if a high or low level alarm or a motor overload

occurs. The green light shall be steady-on when either pump runs. The station status light

shall be the Federal Signal 191XL fixtures described in the plans. No other status light will

be acceptable.

SCADA: Provide a terminal strip in the control panel and wire the following I/O to the

strip.

1. Pump #1 running (dry contact closure)

2. Pump #2 running (dry contact closure)

3. Pump #1 in auto (dry contact closure)

4. Pump #2 in auto (dry contact closure)

5. Pump #1 seal fail (dry contact closure)

6. Pump #2 seal fail (dry contact closure)

7. Pump #1 overload/fail (dry contact closure)

8. Pump #2 overload/fail (dry contact closure)

9. High level alarm (dry contact closure)

10. Low level alarm (dry contact closure)

11. Wet well level (4-20ma from the Milltronics unit)

12. 5 spare positions

WIRING: All power and control wiring shall be stranded copper type MTW. All wires

shall be marked at each point of termination with self-adhering wire markers with the same

designation used on the wiring schematic. All wires shall be routed in plastic Panduit

wireways. All points necessary for external connection in the control panel, whether

power or control, shall be wired to a terminal strip located at the top or bottom of the

enclosure as required. The terminal strip shall be permanently marked with the same

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designation as the wire connected to it. All circuit breakers, starters, and other control

devices mounted within the control panel shall be labeled for identification, both within the

panel and on the wiring schematic with corresponding designations. A power diagram,

control schematic and parts list shall be permanently affixed to the inside of the enclosure

door.

SHOP DRAWINGS: Submit shop drawings for the control panel and level control

equipment.

MISCELLANEOUS: The control panel manufacturer shall be actively engaged in the

design and fabrication of this type of equipment. The manufacturer shall have at least 5

years experience in sewage pump controls. The manufacturer shall furnish six copies of

enclosure details, deadfront layouts, nameplate details, scaled interior layouts, power

diagrams, control schematics, complete material lists and indexed catalog data for

Engineer's approval prior to fabrication of control equipment.

ARTICLE 25. IDENTIFICATION

All wires shall be marked at each point of termination with self-adhering wire markers

with the same designation used on the pump control panel schematic.

ARTICLE 26. CONCRETE

Where concrete is required it shall be 3000 psi minimum (standard aggregate) and shall be

in accordance with ACI standards. All reinforcing (if required) shall be in accordance with

ASTM A615(GR40).

ARTICLE 27. PADLOCKS

Padlocks shall be provided for the transfer switches, disconnect switches and control

panels which are installed outdoors and are subject to unauthorized entry. All padlocks

shall be keyed to match existing locks. Verify with Owner. Four keys shall be furnished to

the Owner.

ARTICLE 28. START-UP AND TESTING

After completion of the work the contractor shall conduct an operating test for approval in

the presence of the Engineer or his representative. At this time, it shall be demonstrated

that the equipment operates in accordance with this specification.

The Contractor shall accurately measure the current of each phase of each pump

motor, while the pump is in operation and pumping water. Measure the currents

using a clip-on ammeter on each phase in rapid succession, so that the pump motor

load will be approximately the same for each reading. The readings shall be

submitted to the Engineer.

The Contractor shall record the nameplate horsepower, starting code letter and full

load current of each pump motor and shall submit the information to the Engineer.

Record the part number and setting of the overload relays. This information shall be

submitted to the Engineer.

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The contractor shall instruct the Owner's operating personnel during start-up and separate

operating tests of each major item of equipment.

ARTICLE 29. PAYMENT

Payment for electrical work shall be as outlined elsewhere in the specifications.

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