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.
13089K
