2.1.6
Metal-Clad Cable
2.1.6.1
General
The metallic covering shall be [interlocked steel tape] [corrugated metal],
conforming to the applicable requirements of NEMA WC 70. If the covering
is of ferrous metal, it shall be galvanized. Copper grounding conductor(s)
conforming to NEMA WC 70 shall be furnished for each multiple-conductor
metal-clad cable. Assembly and cabling shall be as specified in paragraph
CABLING. The metallic covering shall be applied over an inner jacket or
filler tape. The cable shall be assembled so that the metallic covering
will be tightly bound over a firm core.
2.1.6.2
Jackets
Metal-clad cables may have a jacket under the armor, and shall have a
jacket over the armor. Jackets shall comply with the requirements of NEMA
WC 70. The outer jacket for the metal-clad cable may be of polyvinyl
chloride only if specifically approved.
2.2
CABLE IDENTIFICATION
2.2.1
Color-Coding
**************************************************************************
NOTE: The Control Cable Color Code specified,
although widely used by the Corps of Engineers, does
not agree with National Electrical Code requirements
for neutral and grounding conductor identification.
If this is required, use the coding in NEMA WC 70.
**************************************************************************
Insulation of individual conductors of multiple-conductor cables shall be
color-coded in accordance with NEMA WC 70, except that colored braids will
not be permitted. Only one color-code method shall be used for each cable
construction type. Control cable color-coding shall be [in accordance with
NEMA WC 70] [as shown on the drawings] [as follows: - [_____]]. Power
cable color-coding shall be black for Phase A, red for Phase B, blue for
Phase C, white for grounded neutral, and green for an insulated grounding
conductor, if included. [Other individual conductors shall be color-coded
as indicated on the contract drawings but such color-coding may be
accomplished by applying colored plastic tapes or sleeving at terminations.]
2.2.2
Shielded Cables Rated 2,001 Volts and Above
Marking shall be in accordance with Section H of AEIC C8 or AEIC CS6, as
applicable.
2.2.3
Cabling
Individual conductors of multiple-conductor cables shall be assembled with
flame-and moisture-resistant fillers, binders, and a lay conforming to NEMA
WC 70, except that flat twin cables will not be permitted. Fillers shall
be used in the interstices of multiple-conductor round cables with a common
covering where necessary to give the completed cable a substantially
circular cross section. Fillers shall be non-hygroscopic material,
compatible with the cable insulation, jacket, and other components of the
cable. The rubber-filled or other approved type of binding tape shall
consist of a material that is compatible with the other components of the
SECTION 16120A
Page 15
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