MIL-DTL-27072/88D
REQUIREMENTS:
Design and construction:
See figure 1
Number of conductors:
2
200°C
Temperature rating:
Component:
Basic wire:
Either NEMA-HP3 or SAE-AS22759 (see table I)
Conductor:
Silver-coated copper
Primary insulation:
Polytetrafluoroethylene
Colors:
White
Black
Jacket over insulation:
Not applicable
Filler:
Not applicable
Cabling:
Not applicable
Binder tape material:
Not applicable
Marking tape:
Marking tape will be placed under the sheath or shield
Shield:
Material:
Silver-coated copper
Construction:
See table I
Braid angle:
Braid 20 to 40 degrees
Jacket undershield:
Not applicable
Sheath:
Material:
Polytetrafluoroethylene
.011 ± .003 inch (.28 +/-.08 mm)
Wall thickness:
Tensile strength:
In accordance with MIL-DTL-27072
Ultimate elongation:
In accordance with MIL-DTL-27072
Accelerated aging:
Not applicable
Color:
See MIL-DTL-27072
Surface resistance (sheath): When tested in accordance with method 6041 of FED-STD-228, the initial
surface resistance shall be not less than 5 megohms. The final surface resistance shall be within 50
percent of the initial surface resistance. (Note: The specimen for this inspection test shall not be
subjected to any other electrical tests.)
Finished cable:
See table I
Cold bend:
Mandrel size in accordance with MIL-DTL-27072
Dielectric withstanding voltage:
2,000 V rms
Conductor resistance:
In accordance with basic wire specification
Heat resistance: A specimen of finished cable shall be subjected to 250±5 °C in an air oven for 96 hours
minimum. The specimen shall be removed from the oven and allowed to cool to room temperature. After
1 hour at room temperature, the insulation and jacket shall be checked for shrinkage of not more than
.125 inch (3.17 mm). The specimen shall then be wound 5 close turns around the mandrel of 10 times
2
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