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Project Number: 228730 WWTE SCADA Upgrades
Issue Date: August 2017 Nashua, NH

F.

Support individual horizontal raceways by separate pipe hangers. Spring steel
fasteners may be used in lieu of hangers only for 1 1/2 inch and smaller raceways
serving lighting and receptacle branch circuits above suspended ceilings only. For
hanger rods with spring steel fasteners, use 1/4 inch diameter or larger threaded
steel. Use spring steel fasteners that are specifically designed for supporting
single conduits or tubing.

In vertical runs, arrange support so the load produced by the weight of the
raceway and the enclosed conductors is carried entirely by the conduit supports
with no weight load on raceway terminals.

Support miscellaneous electrical components as required to produce the same
structural safety factors as specified for raceway supports. Install metal channel
racks for mounting cabinets, panelboards, disconnects, control enclosures, pull
boxes, junction boxes, transformers, and other devices.

Install sleeves in concrete slabs and walls and all other fire rated floors and walls
for raceways and cable installations. For sleeves through fire rated wall or floor
construction, apply UL listed fire-stopping sealant in gaps between sleeves and
enclosed conduits and cables.

3.03 BOXES AND FITTINGS

A.

Pullboxes shall be furnished and installed where necessary in the conduit system
to facilitate conductor installation. Conduit runs longer than 100 feet or with
more than three right-angle bends shall have a pull box installed at a convenient
intermediate location.

Boxes and enclosures shall be securely mounted to the building structure with
supporting facilities independent of the conduit entering or leaving the boxes.

Bonding jumpers shall be used around concentric or eccentric knockouts.
Installation of Outlet Boxes

1. Use nonmetallic boxes in corrosive areas such as chemical feed area and
as designated on the plans.

2. Use explosion proof boxes in Hazardous areas as identified on the
Drawings.
3. Use cast metal boxes in all other locations. Each box with associated

covers and fittings shall have a NEMA rating for each location installed.
Installation of Pull and Junction Boxes

1. Use dust-tight and oil-tight boxes (NEMA 12) in other dry interior areas.

RACEWAYS, BOXES AND SUPPORTING DEVICES

WOODARD & CURRAN 26 05 34-12

ENGINEER and ENGINEER's Consultants access to the Site to enable OWNER to exercise the rights and remedies under
this paragraph.

C. All Claims, costs, losses, and damages (including but not limited to all fees and charges of ENGINEERs, architects,
attorneys, and other professionals and all court or arbitration or other dispute resolution costs) incurred or sustained
by OWNER in exercising the rights and remedies under this paragraph 13.09 will be charged against CONTRACTOR, and
a Change Order will be issued incorporating the necessary revisions in the Contract Documents with respect to the
Work; and OWNER shall be entitled to an appropriate decrease in the Contract Price. If the parties are unable to agree
as to the amount of the adjustment, OWNER may make a Claim therefore as provided in paragraph 10.05. Such claims,
costs, losses and damages will include but not be limited to all costs of repair, or replacement of work of others
destroyed or damaged by correction, removal, or replacement of CONTRACTOR's defective Work.

D. CONTRACTOR shall not be allowed an extension of the Contract Times (or Milestones) because of any delay in the
performance of the Work attributable to the exercise by OWNER of OWNER's rights and remedies under this
paragraph 13.09.

ARTICLE 14 - PAYMENTS TO CONTRACTOR AND COMPLETION

14.01 Schedule of Values

A. The schedule of values established as provided in paragraph 2.01.A will serve as the basis for progress payments and
will be incorporated into a form of Application for Payment acceptable to ENGINEER. Progress payments on account of
Unit Price Work will be based on the number of units completed.

14.02 Progress Payment
A. Review of Applications.

1. Prior to submittal of Application for Payment to OWNER (but not more often than once a month), the CONTRACTOR
shall submit the monthly progress estimate to the ENGINEER for review and approval.

2. ENGINEER will, within 10 working days after receipt of each progress estimate, either indicate in writing a
recommendation of payment or indicate in writing ENGINEER's reasons for refusing to recommend payment and
return the progress estimate to CONTRACTOR. In the latter case, CONTRACTOR may make the necessary corrections
and resubmit the Application.

3. ENGINEER's recommendation of any payment requested in a progress estimate will constitute a representation by
ENGINEER to OWNER, based on ENGINEER's observations on the Site of the executed Work as an experienced and
qualified design professional and on ENGINEER's review of the Application for Payment and the accompanying date
and schedules, that to the best of ENGINEER's knowledge, information and belief:

a. The Work has progressed to the point indicated;

b. The quality of the Work is generally in accordance with the Contract Documents (subject to an evaluation of
the Work as a functioning whole prior to or upon Substantial Completion, to the results of any subsequent
tests called for in the Contract documents, to a final determination of quantities and classifications for Unit

Price Work under paragraph 9.08 and to any other qualifications stated in the recommendation); and

c. The conditions precedent to CONTRACTOR's being entitled to such payment appears to have been fulfilled in
so far as it is ENGINEER's responsibility to observe the Work.

GC - 47 0f 55

Project Number: 228730 WWTE SCADA Upgrades

Issue Date: August 2017 Nashua, NH
2. Use explosion proof boxes (NEMA 7) in hazardous areas as designated on

the plans.
3. Use watertight boxes (NEMA 4X) for exterior and wet locations on

outdoor structure where moisture is present.

4. Use corrosion resistant watertight boxes (NEMA 4X) for wet locations and
corrosion filled areas, such as the chemical feed area, and as identified on
the Drawings.

END OF SECTION

RACEWAYS, BOXES AND SUPPORTING DEVICES
WOODARD & CURRAN 26 05 34-13

Project Number: 228730 WWTE SCADA Upgrades
Issue Date: August 2017 Nashua, NH

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RACEWAYS, BOXES AND SUPPORTING DEVICES
WOODARD & CURRAN 26 05 34-14

Project Number: 228730 WWTE SCADA Upgrades
Issue Date: August 2017 Nashua, NH

SECTION 26 27 26

WIRING DEVICES

PART 1 - GENERAL

1.01 DESCRIPTION OF WORK

A. The Contractor shall provide the labor, tools, equipment, and materials necessary
to furnish and install wiring devices in accordance with the plans and as specified
herein.

B. This section includes the following:

1. Flush Wiring Devices
2. Control Relays
3. Motor Control Relays/Contactors
4. Control Stations
1.02 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and
Supplementary Conditions apply to this section.

B. Related Sections

1. Division 26: Section 26 05 00 COMMON WORK RESULTS FOR
ELECTRICAL

2. Division 26: Section 26 05 19 LOW-VOLTAGE ELECTRICAL POWER
CONDUCTORS AND CABLES

3, Division 26: Section 26 05 26 GROUNDING AND BONDING FOR
ELECTRICAL SYSTEMS

4. Division 26: Section 26 05 34 RACEWAYS, BOXES & SUPPORTING
DEVICES

WIRING DEVICES
WOODARD & CURRAN 26 27 26-1

Project Number: 228730 WWTE SCADA Upgrades
Issue Date: August 2017 Nashua, NH

1.03 QUALITY ASSURANCE
A. Reference Standards
1. NATIONAL ELECTRICAL CODE (NEC)
2. | UNDERWRITER'S LABORATORIES, INC. (UL)

3. NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION
(NEMA) COMPLIANCE

1.04 SUBMITTALS

A. Furnish manufacture’s product data, test reports, and materials certifications in
accordance with the specifications.

PART 2 - PRODUCTS
2.01 FLUSH WIRING DEVICES

A. Wall Switches

1. Wall Switches shall be specifications grade, toggle operated, quiet type
alternating current (ac) switches, NEMA heavy duty class, rated at 20
ampere, 120/277 v. Provide matching two pole, 3-way or 4-way switches
as indicated. Switches shall be white in color. Comply with UL 20 and
NEMA Standards.

2. Where two or more switches are to be installed at the same location, they
shall be mounted in one-piece ganged switch boxes, with appropriate gang
cover plate.

3. Provide waterproof switches where indicated.

4. Explosion Proof Switches: Explosion Proof/Dust-Ignition Proof Wall
Switches shall be specifically approved by Underwriters’ Laboratories,
Inc., or Factory Mutual for particular "Class," "Division," and "Group" of
hazardous locations involved. Switches shall be tumbler operated equal to
Appleton EDS Series, Crouse Hinds, or approved equal. Switches shall be
factory sealed specifically designed to a U.L. standard so that any arcing
devices are within a chamber which contains any explosions. Switches
shall be approved for installation without any additional external sealing
fittings. Switches shall be specifically designed to accept conduit sizes
indicated on the Contract Drawings.

B. Receptacles

WIRING DEVICES
WOODARD & CURRAN 26 27 26-2

Project Number: 228730 WWTE SCADA Upgrades
Issue Date: August 2017 Nashua, NH

1. Convenience receptacles for interior use shall be specification grade,
industrial heavy duty type, 20-ampere, 125-volt ac, 2-pole, 3-wire, back
wiring, metal plaster ears, single, duplex (as indicated) grounded,
conforming to NEMA FB 11, NEMA WD 1 and to the 5-20R
configuration in NEMA WD 6. Receptacles shall be white in color.
Provide waterproof in-use covers where indicated and required.

2. Ground Fault Interrupter (GFI) Receptacles shall be specification grade.
Provide 20 ampere, "feed through" type ground fault circuit interrupter,
with integral heavy duty NEMA 5 20R duplex receptacles arranged to
protect connected downstream receptacles on same circuit. Provide unit
designed for installation in a 2 3/4 inch deep outlet box without adapter,
grounding type, Class A, Group 1. Receptacles shall be white in color.
Provide waterproof in-use covers where indicated and required.

3. Locking receptacles shall conform to NEMA WD 6. One (1) plug shall be
furnished with each locking receptacle.

4. Receptacles shall meet the requirements for retention of plugs, overload,
temperature, and assembly security in accordance with NEMA WD 1.

5. Special purpose outlets: NEMA heavy duty class, grounding type with
matching plug. Coordinate NEMA type with equipment manufacturer.

6. Explosion Proof Receptacles: Explosion Proof/Dust-Ignition Proof
Receptacles shall be specifically approved by Underwriters' Laboratories,
Inc., or Factory Mutual for particular "Class," "Division," and "Group" of
hazardous locations involved. Receptacles installed in hazardous locations
shall be factory sealed as provide by Appleton Contendor U-Line Series,
Crouse Hinds, or approved equal. Receptacles shall be 20 amp rated
designed with dead front construction. To operate, a matching plug shall
be utilized. When the plug is inserted and rotated, the receptacle shall be
activated. Receptacles shall be approved for installation without any
additional external sealing fittings. Receptacle enclosures shall be
constructed of copper-free aluminum and malleable iron. Provide each
receptacle with matching 20 amp plug. Plugs shall be constructed of
thermoplastic polyester specifically designed for use where moisture and
corrosion may be present. Plugs shall be designed for use with general
purpose receptacles in non-classified locations. Provide each receptacle
with two (2) spare matching plugs.

WIRING DEVICES
WOODARD & CURRAN 26 27 26-3

Project Number: 228730 WWTE SCADA Upgrades
Issue Date: August 2017 Nashua, NH

C.

D.

Device Plates

1. Device plates for receptacles shall be stainless steel.
Weatherproof Device Plates

1. Provide weatherproof device plates where indicated and required.

2. Interior and Exterior Wet Locations: Device plates for interior and exterior
wet locations shall be die-cast aluminum, gasket, with corrosion resistant
screws to match plate cover finish. Provide weatherproof receptacles with
vertical “in-use” covers for complete weatherproofing when plug is
inserted.

2.02 CONTROL RELAYS

A.

mo Oo 8

Control Relays: Allen Bradley Bulletin 700-H Series, Square D or equal.
120V coil as required or as indicated.

Number of poles as indicated or required.

Electrically Held, except as noted.

Enclosure shall be NEMA-1, except as noted.

2.03 MOTOR CONTROL RELAYS/CONTACTORS

To Oo FP YP

7

G.

Allen Bradley, Square D or equal.

120V and 277V coils as required or as indicated
Number of poles as indicated or required.
Horsepower rated for connected motor.
Electrically Held, except as noted.

Enclosure shall be NEMA-1, except as noted.

600V Rated.

2.04 CONTROL STATIONS

A.

Enclosures shall be common or grouped mounted for devices in the same location.
Devices shall include front mounted nameplates identifying function.

Subject to compliance with requirements, provide control stations by one of the
following:

WIRING DEVICES

WOODARD & CURRAN 26 27 26-4

Project Number: 228730
Issue Date: August 2017

C.

1.

2.

3.

4.

WWTE SCADA Upgrades
Nashua, NH

Allen Bradley Company
Appleton Electric Company
Crouse-Hinds Company

Approved equal

Selector Switches

1.

Selector Switches shall be non-illuminated, standard knob operated rated
for use at 12Z0VAC. The knob operator insert shall be white in color. Units
shall be rotary type with round or oval handles and positioning device to
securely hold switch in selected position. Where shown on the Drawings
selector switches shall be key type.

Provide compatible nameplate for each selector switch identifying
intended functions: (LE. "HAND/OFF/AUTO",
"LOCAL/OFF/REMOTE", “JOG/OFF/AUTO”, ETC.) as indicated on the
Contract Drawings.

Units shall be 30.5mm selector switches.

WIRING DEVICES

WOODARD & CURRAN 26 27 26-5

Project Number: 228730 WWTE SCADA Upgrades
Issue Date: August 2017 Nashua, NH

D. Pushbuttons

4. Switches shall be non-illuminated momentary or maintained type rated for
use at 120 VAC. Switches shall green in color for "START" pushbuttons,
and shall be red in color for "STOP" pushbuttons.

5. Provide compatible nameplate for each pushbutton identifying intended
functions (LE. "STOP", "START", ETC.).

6. Emergency stop operators shall be mushroom style, 2-position push-pull
type, with number of contacts as indicated on the Contract Drawings.
Stations shall be provided with push-pull padlocking attachment and
legend plate reading: "Push to Stop, Pull to Start.”

7. Units shall be 30.5mm pushbuttons.
PART 3 - EXECUTION
3.01 WIRING DEVICES
A. Wall Switches and Receptacles

1. Wall switches and receptacles shall be so installed that when device plates
are applied, the plates will be aligned vertically to within 1/16-inch.

2. Ground terminal of each flush-mounted receptacle shall be bonded to the
outlet box with an approved green bonding jumper.

WIRING DEVICES
WOODARD & CURRAN 26 27 26-6