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1.7

1.8

1.9

1.10

16010-12
ELECTRICAL - GENERAL

6. List of recommended spare parts.

RECORD DRAWINGS

A.

At the completion of the installation, provide reproducible Record Drawings
indicating the final configuration of all Electrical Systems as they were
installed. Symbols, equipment designations, etc. shall be consistent with the
Contract Documents. Provide exact locations of all work which has been concealed
in concrete, masonry or underground.

Contractor shall provide detailed instrumentation loop diagrams, control panel
diagrams, and motor schematics indicating exact point to point wiring. The
electrical contractor and instrumentation vendor shall prepare the diagrams jointly
to allow full coordination.

During construction a clean set of red lined drawings will be set aside in the
construction trailer with markups of changes which occur during the construction of
the project. These are required and will be inspected for making sure that the
contractor is recording these field changes for implantation to final record drawing
submittals. Upon completion of the project these red lined drawings will be used to
generate field as-built final drawings by the contractor. A copy will be provided to
the Engineer for record proposal.

As-Built copies of all shop drawings shall be submitted to the Engineer along with
the As-Built drawings prior to final acceptance of the project.

DELIVERY, STORAGE AND HANDLING

A. Coordinate material and equipment delivery with the project schedule. Notify the
Engineer immediately, in writing, if material or equipment delivery will adversely
affect the project schedule, include documentation from equipment suppliers
indicating the revised delivery dates and the reason for the delay.

B. Exercise care during loading, transporting, unloading and handling of materials to
prevent damage.

C. Check for defective or damaged materials, and for incomplete equipment shipments
within seven (7) days after equipment delivery to the project site.

D. Store materials and equipment on the construction site in enclosures or under
protective covering and off the ground in order to keep materials and equipment
undamaged, clean, and dry.

E. Replace or repair, to the satisfaction of the Engineer, all materials and equipment
that are defective or that have been damaged during installation, at no additional cost
to the Owner.

GUARANTEE

A. Guarantee all equipment, materials and workmanship in accordance with the
General Conditions of the Construction Contract and Section 11000.

B. Warrant all material furnished and work executed is in accordance with all

applicable laws and regulations.

SUBCONTRACTOR COORDINATION AND RESPONSIBILITY
A. Coordination with Division 15

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1.13

1.14

1.15

16010-13
ELECTRICAL - GENERAL

a. Electrical subcontractor is responsible to review the HVAC Drawings and
Specifications to determine the power conduit and wiring requirements.
Electrical subcontractor is responsible to implement conduit and wiring needs
to match the functional descriptions in DIV. 15 except that specifically
identified as being provided by the HVAC subcontractor. HVAC subcontractor
shall be responsible for all control, low voltage 24VDC / 24VAC, conduit and
wiring. This shall include, but is not necessarily limited to, wiring for automatic
temperature control, and control wiring for plumbing systems. The HVAC
subcontractor shall provide all miscellaneous 120VAC control from HVAC
control panels to final control devices, as required, unless specifically included
in Electrical work per the Drawings and Specifications.

BID ALTERNATES

A.

Refer to DIVISION 1 of the Contract Drawings for all work related to Bid Alternates
for this project. Bid Alternates have been identified and described for specific work
areas and equipment. The Contractor shall determine all associated work and costs
required for these items for a complete system.

The drawings indicate and define areas where work related to the bid alternates
under this section is required. This has been noted and shown as clearly as possible.
However it does not show each and every possible component for these bid
alternates. Therefore it shall be the contractor's responsibility to include all
associated materials, labor and costs associated with the required bid alternatives for
a complete system.

MEASUREMENT AND PAYMENT

A.

Measurement and payment for the work described in this section will be made in
accordance with the provisions of DIVISION 1 MEASUREMENT AND
PAYMENT.

REQUEST FOR INFORMATION

A.

When there is a conflict or coordination issue, or if additional information is
necessary for the contractor to proceed with the intended work, a Request of
Information (RFI) form shall be submitted through the General Contractor to the
Engineer. The specific issue shall be described in the RFI and shall be sent to the
engineer for review and a response provided in an appropriate time period. RFI form
shall be available via the General Contractor through the Engineer as required for
this contract. This process shall be used as part of the work of this contract.

PART 2 - PRODUCTS

2.1

MATERIALS

A.

B.

Materials shall be as specified in the appropriate Sections of DIVISION 16.
No exceptions to the Engineer of materials shall be as indicated in these Sections.

PART 3 - INSTALLATION

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3.1

3.2

3.3

16010-14
ELECTRICAL - GENERAL

INSTALLATION
A. Installation shall be as specified in the appropriate Sections of DIVISION 16.

TESTS
A. Refer to all related requirements as set forth within SECTION 16950 and additional
testing as indicated in the appropriate Sections of DIVISION 16.

CLEANING

A. Do not allow refuse and surplus materials to accumulate on the project site during
the course of the work. Areas shall be cleaned and picked up on a daily basis.

B. Uponcompletion of the work, remove all refuse and surplus materials and leave the
premises neat and clean on a daily basis.

C. Clean all equipment surfaces and touch up all damaged surfaces to the satisfaction
of the Engineer.

D. Clean all lighting fixture reflector assemblies, lenses, louvers and lamps upon
completion of the installation.

END OF SECTION

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16050-1

SECTION 16050

BASIC MATERIALS AND METHODS

PART 1 - GENERAL

1.1

DESCRIPTION

A.

The Drawings are diagrammatic, unless detailed dimensioned Drawings are
included, and show approximate locations of distribution equipment, fixtures,
control panels and wiring devices. Equipment layouts shall be submitted prior to
work in these areas with sufficient time for a detailed review. All equipment and
locations shall be closely reviewed and coordinated. Coordinate all work and
equipment locations with the Engineer prior to performing final installations.
While the general run of electrical feeders, branch circuits and conduits are indicated
on the Drawings, it is not intended that exact routing be determined there
from. Conductors can be combined in conduits for ease of construction as permitted
by these specifications and the latest edition of the N.E.C.

Circuit designations can be found on the contract drawings in the combination of
any of the following formats:

Single Line Diagrams Wiring Diagrams

Electrical Schematics Panelboard Schedules
Control and Instrumentation Diagrams Conduit and Wire Schedule
"Home Runs"

The Contractor shall be responsible for reviewing all drawings and may modify
these designations subject to field conditions and review of the Engineer.
Measurements shall be made and coordinated with all approved equipment at the
site and in the buildings during construction and all systems installed as the work
progresses in such a manner that the equipment, piping, vents, ducts, conduit, etc.,
will fit in the space provided, maintain head room and if in unfinished areas, be as
neatly installed, as obscure and "out-of-the- way" as physically possible.

Prior to submission for review any item of equipment, determine whether or not it
will fit in the space provided and that no design changes in conduits, wiring or
controls will be required. Any changes in the size, location or interconnections of
the material or equipment supplied, which may be necessary in order to meet field
conditions or in order to avoid conflicts between trades, shall be brought to the
immediate attention of the Engineer and no exceptions must be taken before such
alterations are made.

All equipment and accessories and its interconnecting piping, ductwork, conduits,
etc., shall be installed in such a manner that ample maintenance passage and Code-
required space/access will be provided.

Where more than one trade is involved in an area, space or chase, all shall cooperate
and install their own work to utilize the space equally between them in proportion
to their individual requirements. In general ductwork shall be given preference
(except where grading of piping becomes a problem) followed by piping then

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1.2

1.3

16050-2
BASIC MATERIALS AND METHODS

electrical wiring. If, after installation of any equipment, piping, ducts, conduit, etc.,
it is determined that ample maintenance and passage space has not been provided,
the work shall be rearranged and/or furnished with other equipment as required to
provide this space at no additional cost to the Engineer. The Contractor shall review
the drawings for all other trades to determine any potential interferences and identify
and coordinate with those with other trades.

When there is a conflict or coordination issue, or if additional information is
necessary for the contractor to proceed with the intended work, a Request for
Information (RFI) form shall be submitted through the General Contractor to the
Engineer. The specific issue shall be described in the RFI and shall be sent to the
Engineer for review and a response shall be provided in an appropriate time period.
RFI form shall be available via the General Contractor through the Engineer as
required for this contract. This process shall be used as part of the work of this
contract.

QUALITY ASSURANCE

A.

In General, the workmanship of the electrical installation shall be as described in the
N.E.C.A. Electrical Design Guidelines. All methods of construction, details of
workmanship, etc. that are not specifically described therein or indicated in the
Contract Documents, shall be subject to the control and approval of the Engineer.
Equipment and materials shall be of the quality and manufacture indicated in their
respective sections of the Specifications.

Work determined by the Engineer to be unsatisfactory according to industry
standards shall be redone at the Contractor's expense, with no additional
compensation.

All efforts shall be made in the location and installations of all raceways and
equipment for a neat, logical, and safe installation as it pertains to personnel and
operations.

An electrical conduit and associated electrical devices, etc., shall be installed
concealed wherever possible in order to provide for a clean and limited amount of
exposed conduit runs. Coordinate all work with the Engineer prior to performing
this work.

SUBMITTALS TO THE ENGINEER

A.

The contractor shall be responsible to submit a complete list of conduit type to be
used for all locations of the project. A Conduit Layout Plan shall be submitted as a
shop drawing with the following:

1. Shall include a column for exposed and concealed conduit heading. Mark up
each location with the type of conduit to be used for the respective space in the
appropriate heading of exposed and concealed installation.

2. Provide detailed drawings indicating intended routing and combination of
conductors. Refer to section 16010 for additional requirements.

Submit a shop drawing for the following equipment, materials, products, etc.:

1. Conduit, Raceway and Tubing.

2. Conductors and Cable
3. Wiring Devices

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AANAMSF

9

10.
Submit Shop Drawings per SECTION 16010.
Submit test results on all feeder conductors and heat trace cables as specified in

vo

16050-3
BASIC MATERIALS AND METHODS

Control Devices and Equipment

Motor Starters

Safety Disconnect Switches

Lighting Fixtures

Lighting flexible hangers

Conduit and wall and floor link seal fittings
Conduit cable sealing fittings

SECTION 16950.

PART 2 - PRODUCTS

2.1 MATERIALS
A. Conduit, Raceway and Tubing

1.

Rigid Heavy Wall Steel Conduit (RSC or RGS) shall be constructed of hot
dipped galvanized or electro-galvanized steel. Acceptable Manufacturers:
Allied, Wheatland, or equivalent.

Electrical Metallic Tubing (EMT) shall be constructed of electro-galvanized

steel. EMT fittings shall be interlocking compression type of cadmium-plated

malleable iron or zinc coated steel, or stainless steel. No die cast, set screw and
indenter type fittings shall be used. Acceptable manufactures are Allied,

Wheatland or equivalent.

Aluminum conduit shall be rigid, heavy wall aluminum. Acceptable

manufacturers: Anaconda, Kaiser, VAW, or equivalent.

Flexible Metal Conduit

a. Flexible Metal Conduit shall be constructed of one continuous length of
U.L. Approved electro-galvanized, spirally wound steel strip with
interlocking convolutions and interior surfaces free from burrs and sharp
edges.

b. Flexible metal conduit shall be "liquid-tight" with PVC jacket. Acceptable
Manufacturers: Alflex, Electri-Flex, Thomas & Betts, or equivalent.

c. Flexible metal conduit installed in hazardous, NEMA 7, Class I Div | areas
shall be UL Listed, and shall have a bronze or stainless steel braid covering
over a flexible brass inner core. Packing shall be woven cotton braid
impregnated with asphalt.

d. Acceptable manufacturer: Crouse-Hinds, Killark, Thomas & Betts-XP
Series, or equal.

Non-Metallic (P.V.C.) Conduit shall be Schedule 80, extra heavy wall or

Schedule 40, heavy wall and UL Listed for the use intended. Acceptable

Manufacturers: Carlon, Harrison, or equivalent.

P.V.C. Coated Rigid Galvanized Steel Conduit. Acceptable Manufacturers:

Rob-Roy "Plasti-Bond", Ocal, or equal.

a. The PVC Coated Rigid Galvanized Steel conduit, shall fully comply with
the following industry listings and manufacturer's standards without
exception prior to PVC coated application, shall conform to Federal

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20. DISPOSITION OF CONTRACT MATERIALS Any books, reports, studies, photographs, negatives or

21.

other documents, drawings or other materials, including but not limited to those contained in media
of any sort (e.g., electronic, magnetic, digital) prepared by or supplied to Professional Consultant
in the performance of its obligations under this contract shall be the exclusive property of the City
of Nashua and all such materials shall be remitted and delivered, at Professional Consultant's
expense, by Professional Consultant to the City of Nashua upon completion, termination, or
cancellation of this contract. Alternatively, if the City of Nashua provides its written approval to
Professional Consultant, any books, reports, studies, photographs, negatives or other documents,
drawings or other materials including but not limited to those contained in media of any sort (e.g.,
electronic, magnetic, digital) prepared by or supplied to Professional Consultant in the performance
of its obligations under this contract must be retained by Professional Consultant for a minimum of
four years after final payment is made and all other pending matters are closed. If, at any time during
the retention period, the City of Nashua, in writing, requests any or all of the materials, then
Professional Consultant shall promptly remit and deliver the materials, at Professional Consultant's
expense, to the City of Nashua. Professional Consultant shall not use, willingly allow or cause to
have such materials used for any purpose other than the performance of Professional Consultant's
obligations under this contract without the prior written consent of the City of Nashua.

PUBLIC RECORDS LAW, COPYRIGHTS, PATENTS Professional Consultant expressly agrees that all
documents ever submitted, filed, or deposited with the City of Nashua by Professional Consultant
(including those remitted to the City of Nashua by Professional Consultant pursuant to paragraph
20), unless designated as confidential by a specific statute of the State of New Hampshire, shall be
treated as public records and shall be available for inspection and copying by any person, or any
governmental entity.

No books, reports, studies, photographs, negatives or other documents, drawings or other materials
including but not limited to those contained in media of any sort (e.g., electronic, magnetic, digital)
prepared by or supplied to Professional Consultant in the performance of its obligations under this
contract shall be the subject of any application for a copyright or patent by or on behalf of
Professional Consultant. The City of Nashua shall have the right to reproduce any such materials.
Notwithstanding any provision to the contrary contained in this Agreement, Professional Consultant
shall retain sole ownership to its preexisting information including but not limited to computer
programs, software, standard details, figures, templates and specifications to the extent that
Professional Consultant identifies each element of all such information to the City of Nashua
simultaneously with the provision of the same

Professional Consultant expressly waives all of its rights to bring, including but not limited to, by
way of complaint, interpleader, intervention, or any third party practice, any claims, demands, suits,
actions, judgments, or executions, for damages or any other relief, in any administrative or judicial
forum, against the City of Nashua or any of its officers or employees, in either their official or
individual capacity of the City of Nashua, for violations of or infringement of the copyright or patent
laws of the United States. Professional Consultant agrees to indemnify, to defend, and to hold
harmless the City of Nashua, its representatives, and employees from any claim or action seeking
to impose liability, costs, and reasonable attorney fees incurred as a result of or in connection with
any claim, whether rightful or otherwise, that any material prepared by or supplied to Professional
Consultant infringes any copyright or that any equipment, material, or process (or any part thereof)
specified by Professional Consultant infringes any patent.

Professional Consultant shall have the right, in order to avoid such claims or actions, to substitute
at its expense non-infringing materials, concepts, products, or processes, or to modify such
infringing materials, concepts, products, or processes so they become non-infringing, or to obtain
the necessary licenses to use the infringing materials, concepts, products, or processes, provided

GC 9 of 11

16050-4
BASIC MATERIALS AND METHODS

Specifications WW-C-581E, ANSI Standard C80.1, ANSI Standard C80.5
UL Standard #6 and NEMA RN1-2005.
The PVC coated rigid galvanized steel (RGS) conduit shall comply with the
below listed specifications without exceptions allowed. PVC coated rigid
galvanized steel (RGS) conduit shall be hot dipped galvanized both
internally & externally. The PVC coated rigid galvanized (RGS) conduit
shall have hot dipped galvanized threads. The external PVC coating shall
be a nominal 40 mils of external PVC coating and 2 mils of blue interior
urethane coating. The PVC coating shall applied by the same manufacturer
of the hot dipped galvanized rigid steel (RGS) conduit.

Conduit bodies and fittings for PVC coated rigid galvanized steel (RGS)

conduit shall be from the same manufacturer as the PVC coated ngid

galvanized steel (RGS) conduit. Conduit bodies shall be coated on the entire
body both internally and externally with 2 mil of blue urethane and exterior
coated with 40mil of PVC coating.

All conduit, conduit bodies, connectors, support systems and accessories in

the corrosive areas, above grade or below grade, shall be coated as specified.

The thickness of the coating is to be a nominal 40 mils except where the

configuration or application of the unit dictates otherwise.

During the manufacturing of the PVC coated rigid galvanized steel (RGS)

conduit, the factory applied hot dipped galvanized coating of both the

internal and external (RGS) conduit shall not be disturbed in any fashion
prior to the application of PVC coating being applied as per UL 6. The PVC
coated rigid galvanized steel (RGS) conduit shall comply with all UL
listings providing the hot dipped galvanized coating as the primary means
of protection of corrosion protection for the conduit, and the PVC coating
shall be listed as a secondary means of corrosion protection as required by

UL 6 and NEMA RN-1-2005.

. Every female opening shall have a plastic sleeve extending one pipe

diameter or 2", whichever is less, beyond the opening. The inside diameter

of the sleeve shall be the same as the outside diameter of the pipe used with
it. The wall thickness of the sleeve shall be the same as the plastic coating.

Fittings and Accessories:

i. Right angle beam clamps and U-bolts will be provided with PVC
encapsulated nuts that cover all exposed parts of the threads.

ii. _U-bolts will be sized to snugly fit the nominal 40 mil coated conduit.

iii. The screw heads on Form 8 condulets shall be stainless steel
encapsulated by the same manufacturer. All conduit bodies used in
wash down, wet or outdoor applications shall be NEMA 4X rated. .

iv. Couplings shall have longitudinal ribs 40 mils in thickness to protect
them from wrenches or channel-locks.

v. All coated conduit and fittings must be installed wherever possible
by a certified trained installer using a tool available from the
manufacturer for the use intended in order to protect the PVC
coating.

The interior coating shall be applied in such a manner so as to allow field

bending without cracking or flaking of the interior coating.

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7.

8.

16050-5
BASIC MATERIALS AND METHODS

Approved manufacturers shall be: Rob Roy Plasti Bond, Thomas & Betts-
OCAL or equal.
All fittings shall be of the same material as the respective raceway system.

B. Conductors and Cable

1.

All power wiring conductors (P-X on drawings) shall be insulated for 600 volts,

Type XHHW insulation, unless otherwise noted. Conductors shall be standard

AWG and KCMIL sizes. Conductors shall be 98 percent copper, stranded, heat

and moisture resistant with cross-linked synthetic polymer insulation for all

sizes No. 12 AWG and larger. Smaller sizes shall not be used except for
communications and special systems. For lighting and receptacle circuits, solid
wire may be used in lieu of stranded wire, for No. 12 and No. 10 AWG
only. Conductors shall be labeled with U.L. approval and be marked with the
manufacturer's name, wire size and insulation type. All underground power
cables shall be UL Listed and Labeled for underground use in wet locations.

Acceptable Manufacturers: Okonite, Southwire, Pirelli, or approved

equivalent.

Control Wiring:

a. All control wiring (120 or 24 volt, AC or DC) conductors within buildings
or above grade shall be insulated for 600 volts, unless otherwise noted, and
shall be No. 14 AWG minimum size, or larger if so indicated on the
Drawings. Conductors shall be 98 percent copper, stranded, heat and mois-
ture resistant, and thermal plastic insulated and shall be type
THWN/THHN.

b. All conductors for control wiring located below grade shall be 600V, 98
percent copper, stranded, heat and moisture resistant, with cross-linked
synthetic polymer insulation type XHHW. All underground control cables
shall be U.L. Listed and Labeled for underground use in wet locations.
Acceptable Manufacturers: Okonite, Southwire, Pirelli, or approved
equivalent.

Metal clad cable shall consist of thermal plastic insulated copper conductors, of

size and quantity indicated, protected by a positive interlocked armor of

galvanized steel. The conductors shall be twisted together and shall have an

overall moisture and fire resistant fibrous covering. The cable shall have a

grounding conductor of copper. The cable shall meet the requirements of

Article 330 of the National Electrical Code for "Type MC" Metal Clad Cable

and shall bear the U. L. Label. Acceptable Manufacturers: Okonite, Pirelli,

Houston Wire & Cable, or approved equivalent.

All instrumentation control cables (4-20 mA signal) referred to on the Drawings

as "twisted shielded pairs", shall be rated 600V, 80 deg. C, individually shielded

twisted pairs, No. 16 AWG, stranded conductors of tinned copper with
polyethylene insulation and aluminum-polyester shielding with #18 awg
stranded copper drain wire surrounded by a chrome PVC jacket. Control cable
shall be UL listed with 100% shield coverage. All underground instrumentation
cables shall be U.L. Listed and Labeled for underground use in wet locations.

Acceptable Manufacturers: Belden, Alpha Wire & Cable or approved equal.

Provide instrumentation control cables equivalent to Belden type 8719 or

equivalent unless specified otherwise by the instrument manufacturer.

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16050-6
BASIC MATERIALS AND METHODS

5. Three conductor shielded cable for use with remote potentiometers for varying
motor speeds etc. Cable shall be stranded, tinned copper, polyethylene
insulated, drain wires with aluminum-polyester shielding with #18 awg
stranded copper drain wire surrounded by a chrome PVC jacket. Control cable
shall be rated 600 volt and shall be UL listed with 100% shield
coverage. Acceptable Manufacturers: Belden, Alpha Wire & Cable or
approved equal. Provide three conductor shielded cables equivalent to Belden
type 8618 or equivalent unless specified otherwise by the instrument
manufacturer.

Motor Starters

1. For Single Phase Motors: Fractional Horsepower Manual Motor Starter with
Thermal Overload(s) and a red running indicating light unless noted otherwise:
a. 120 Volt, Single-Pole, H-O-A Selector, Surface Mounted: Square-D FG-71P

2. For Three Phase Motors: Shall be combination starter/disconnect type,
employing magnetic starter (NEMA Size 1 minimum), rated to match the
equipment served, with thermal overload protection for each phase and with an
M.C.P. type circuit breaker/disconnect sized per the circuit breaker
manufacturer's recommendations for coordination with the thermal overload
protection, lights, relays and auxiliary devices. Combination starters shall be
provided with a 480, 240 or 208-120 volt control power transformer with
primary and secondary fusing. Provide 2 N.O. and 2 N.C. auxiliary contacts.

3. Refer to control wiring diagrams on the drawings for specific requirements and
devices.

4. Acceptable Manufacturers:

5. Square-D, Cutler-Hammer, General Electric, Allen-Bradley, Siemens or
approved equal.

Safety Switches

1. All safety switches shall be NEMA Type HD and Underwriters Laboratories
Listed.

2. The handle position shall indicate whether the switch is "ON" or "OFF".

3. All current carrying parts shall be plated to resist corrosion and promote cool
operation. Switches shall have removable arc suppressers where necessary to
permit easy access to line side lugs. Lugs shall be front removable and UL
listed for 60°C or 75°C, aluminum or copper wires.

4. Provisions for padlocking the switch in the "OFF" position with at least three
locks shall be provided.

5. Switches shall have a dual cover interlock to prevent unauthorized opening of
the switch door when the handle is in the "ON" position, and to prevent closing
of the switch mechanism with the door open.

6. Disconnect switches, indicated on the drawing to be used for motors controlled
by variable frequency drives shall be as indicated above, except shall be 4 pole
type switches. The fourth pole shall be wired directly to the disable input, in
series with the safety e-stop, in order to lock-out and immediately shutdown the
drive. The auxiliary 4th pole shall open prior to any of the other three power
poles and shall be designed for proper use with VFD type load circuits.

7. Enclosures

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