Bid Package 08 North Well Field - Garney Construction

7. Wiring shall be run enclosed in plastic wireway wherever possible. Wireways shall be
installed as required to enclose panel wiring. Where the use of plastic wireway is not
practical, conductors shall be bundled and run open. Conductors run open shall be
bundled and bound at regular intervals not to exceed 6" with nylon ties, or approved
equal. Wires within a bundle are to be run parallel to one another and not twisted.
Bundles shall have a uniform appearance, circular cross section, and shall be securely
fastened to the panel framework. Conductors carrying different voltages that are from
the same source may occupy the same wireway provided all are insulated for the
maximum voltage of any conductor in the wireway. Wire ducts shall be insulated for
the maximum voltage of any conductor in the wire duct . Wiring carrying voltages that
originate at different source shall not run in the same wireway. Wire ducts shall be
color coded as follows:
a. 24VDC shall be routed in a Wire duct with a Light Grey Color cover.
b. 48VDC shall be routed in a Wire duct with a Blue Color cover.
c. 120VAC shall be routed in a Wire duct with a White Color cover.
d. 480VAC shall be routed in a Wire duct with a Black Color cover.
8. Terminal blocks shall be installed for wire terminations and shall be capable of
mounting on a 35mm DIN-rail. Terminal blocks shall have a method of labeling for easy
identification. Typewritten labels shall denote terminal block numbers and shall match
numbers shown on shop drawings, O&M manuals and wiring diagrams. 25 percent
additional terminals shall be provided for OWNER’s use. Terminal blocks shall be
available with screw clamp technology and be made of a non-corrosive material. The
metal body shall contain a serrated pressure plate that will provide a gas-tight
connection with the conductor. All terminal block wiring points shall be “touch safe”
with no live voltages that can make contact with a misplaced finger. Terminal blocks
shall be rated 600V and shall be Phoenix Contact UT Series, Allen Bradley 1492-H1
Series or approved equal.
9. A separate 120VAC Terminal Block and circuit breaker shall be provided for RTU
cabinet.
F. A print pocket shall be provided in the panel and shall contain an 11" x 17" wiring diagrams,
panel elevations and drawings. The wiring diagram shall contain all wire numbers, device
names and terminal numbers. Drawings shall be laminated in clear plastic for preservation
of the drawings.
G. Enclosure shall be provided with an enclosed switched fluorescent light and 120 volt
grounded duplex receptacle. Switch for light shall be mounted on inside of cabinet, easily
accessible.
H. Enclosure at TPS, OPS and WPS shall be provided with a fold down table for laptop pull
out/up laptop tray that is located adjacent to the graphic user interface touchscreen. The
laptop tray when pulled out/up shall be a minimum of 18”W x 18”D. Fold down table
laptop tray shall be mounted at an elevation of 4’-0” 3’-0” AFF including the housekeeping
pad height in the mounting height. The laptop tray shall be painted to macth the RTU
enclosure.
I. All equipment shall be mounted in such a manner that all maintenance may be
accomplished with easy access through the RTU cabinet doors.
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Supervisory Control and Data Acquisition (SCADA) System 40 90 02-21
CMD11269 – Ward County Transmission System Expansion – Contract C – Above Slab TPS, OPS, and WPS