MIL-DTL-17/189C
TABLE I. Description.
Components
Construction details
Inner conductor
Seven strands of bare copper wire, each strand .0296 inch diameter. Overall diameter:
.0888 inch ± .0010.
Dielectric core
Type A-1: Solid polyethylene. Diameter: .285 inch ± .007.
Outer conductor
Single braid of AWG No. 33, bare copper wire. Diameter: 0.330 inch maximum.
Coverage: 95.3% nominal
Carriers:
24
Ends:
8
Picks/inch: 6.5 ± 10%
Barrier tape
A .001 inch thick polyester tape faced with a .002 inch thick layer of aluminum. The tape will
be applied with a 50% lap, aluminum face toward the outer conductor. Diameter: .340 inch
maximum.
Jacket
Cross-linked polyolefin. Diameter: .405 inch ± .007.
Armor (M17/189- Single braid of aluminum-alloy wire. Diameter: .475 inch maximum.
00002)
REQUIREMENTS:
Continuous working voltage: 3,700 V rms, maximum.
Operating frequency: 1 GHz, maximum.
Velocity of propagation: 65.9 percent, nominal.
Power ratings: See figure 2.
Operating temperature range: -30°C to +85°C.
Inner conductor properties:
DC resistance (maximum at +20°C): 0.176 ohms per 100 feet.
Elongation: 25 percent, minimum.
Dimensions, configuration, and descriptions: See figure 1 and table I.
Environmental and mechanical:
Visual and mechanical examination: Applicable.
Out-of-roundness: Not applicable.
Eccentricity: 10 percent maximum.
Adhesion of conductors:
Inner conductor to core: 7 pounds, minimum; 50 pounds, maximum.
Aging stability: +98°C ± 2°C.
Cold bend: -30°C ± 2°C.
Dimensional stability: +85°C ± 2°C.
2
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