MIL-DTL-24640/16E
Blocking
150±2 °C (302±3.6 °F)
Color
In accordance with MIL-STD-104, Class 1; white preferred
Flammability
30 seconds (max.)
3.0 inches (max.)
No flaming of tissue paper
Humidity resistance
5000 megohms for 1000 feet (min.) insulation resistance after
humidity exposure
Dielectric test
Primary insulation
6.0 kilovolts (peak), 100 percent impulse test
(when tested in lieu of spark test)
Finished wire
8.0 kilovolts (peak), or 3 kHz spark test 5.5 kV, 100 percent
test
Insulation resistance
5000 megohms for 1000 feet (min.)
Life cycle
Oven temperature, 200±2 °C (392±3.6 °F) for 120 hours
Physical properties of primary insulation
2500 lb/in2 (min.)
Tensile strength
Elongation
150 percent (min.)
Shrinkage
0.125 inch (max.) at 250±2 °C (482±2 °F)
Spark test primary insulation
1500 volts (root mean square), 3 kHz, 100 percent test
Surface resistance
500 megohms inches (min.), initial and final readings
Thermal shock
Oven temperature, 150±2 °C (302±3.6 °F)
Maximum change in measurement
0.060 inch
Wet dielectric test
2500 volts (root mean square)
Wrap test
Mandrel wrap test required
INSPECTION:
Basic Electricals:
Conductor resistance (ohms/1000 feet at 25 °C, max.)
7.11
Voltage withstand (volts, root mean square, min.)
Conductor to conductor and shield
1000
Component shield to component shield
200
Component shield to overall shield (Type 2XSOW only)
500
Insulation resistance (megohms/1000 feet, min.)
Conductor to conductor and shield
2500
Shield to shield (component shield only)
100
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