MIL-DTL-3883B
3.4.5 Color coding (see 4.5.1). The conductors within the cord shall be clearly distinguishable by the
color of the insulation. The coloring shall be solid, and may either extend through the thickness of the
insulation or consist of a thin layer of colored compound applied over the insulation. In the latter case, the
colored layer shall adhere firmly to the insulation wall. The color limits shall conform to MIL-STD-104,
class 2. The color coding of the conductor insulation shall be in accordance with table II.
TABLE II. Color coding of conductor insulation.
Number of conductors
Color coding
1
Black
2
Black and white
3
Black, white and red
4
Black, white, red, green
5
Black, white, red, green, orange
6
Black, white, red, green, orange and blue
7
Black, white, red, green, orange, blue, and brown
3.4.6 Shield (see 4.5.1). The shield shall be a closely woven braid of 34 AWG tinned-coated copper
strands conforming to A-A-59551, and shall be applied to provide coverage of not less than 85 percent of
the construction underneath.
3.4.7 Jacket (see 4.5.1). A black styrene butadiene rubber jacket conforming to MIL-I-3930, type JS-L,
shall be applied over the shield and separator to a minimum thickness as specified in table I.
3.4.8 Outside diameter (see 4.5.1). The outside diameter of the completed cord shall not exceed the
maximum dimension specified in table I.
3.5 Electrical requirements.
3.5.1 Dielectric withstanding voltage. The finished cord shall withstand for one minute the voltage
specified in table I when tested in accordance with 4.5.2.1, and shall show no evidence of breakdown.
3.5.2 Insulation resistance. The insulation resistance shall be not less than the value specified in
table I when tested in accordance with 4.5.2.2.
3.5.3 Conductor resistance. The DC resistance of each conductor in a finished cord shall not exceed
11.57 ohms (max.) / 1,000 feet at 20°C when tested in accordance with 4.5.2.3.
3.5.4 Capacitance. The capacitance of the finished cord shall not exceed the value specified in table I
when tested in accordance with 4.5.2.4.
3.6 Physical properties.
3.6.1 Cold bend. Neither the jacket nor the insulation shall show evidence of cracks, flaws, or other
damage when tested in accordance with 4.5.3.1 at a temperature of -55° ± 2°C.
3.6.2 Lengths (see 4.5.1). Unless otherwise specified (see 6.2), the cord shall be furnished wound on
spools or reels in continuous lengths of not less than 250 feet.
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