MIL-DTL-915/66D
Size 20 and 16 conductor:
Conductor to conductor............................................................................................150
Conductor to shield .................................................................................................. 150
Shield to shield ......................................................................................................... 100
Group A:
Visual and dimensional .......................................................................................................... No failure
Watertightness - see MIL-DTL-915, Table XXII, for limits of water leakage .................... No failure
Characteristic impedance (size 22 conductors only) -at l MHz, ohms ........................................55 ± 5
Capacitance (size 22 conductors only) -at MHz; pF/ft, maximum .................................................... 27
Group B:
Drip - at 75 ± l°C............................................................................................................................. Zero
Cold bending, cable - at 0 ± 2°C; over 18 inch maximum
diameter mandrel........................................................................................ No damage
Physicals (unaged)
Insulation (polyvinyl chloride only (PVC))
Tensile strength - lbf/in2, minimum ....................................................................... 1800
Elongation - percent, minimum ............................................................................... 100
Jacket (cable)
Tensile strength - lbf/in2, minimum ....................................................................... 1800
Elongation - percent, minimum ............................................................................... 300
Set - inch, maximum .............................................................................................30/64
Group C:
Flammability - inches, maximum ......................................................................................................... 2
Physicals (aged)
Insulation (polyvinyl chloride only (PVC))
Air oven
Elongation - percent of unaged, minimum....................................................90
Cable jacket
Air pressure heat
Tensile strength - percent of unaged, minimum ........................................................ 65
Elongation - percent of unaged, minimum ................................................................ 65
Hot oil immersion
Tensile strength - percent of unaged, minimum ........................................................ 65
Elongation - percent of unaged, minimum. ............................................................... 65
Permanence of printing (jacket) - cycles, minimum ........................................................................ 250
Cable filler removability ........................................................................................................ No failure
Shield-conformance to material coverage and construction ................................................. No failure
QUALIFICATION INSPECTION:
Qualification inspection shall include basic electrical, all of groups A, B and C, plus the following:
Cable aging and compatibility (95 ± 3°C) ................................................................ No failure
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