MIL-DTL-24640/2E
TABLE I. Construction details.
Cable diameter
Cable
Jacket
Conductor
(inch)
weight
PIN
AWG
thickness
resistance
Type number
(pounds per
M24640/2
size
(inch)
per 1000 feet
1000 feet)
(min.)
(max.)
(min.)
(ohms)
(max.)
4.98
51.6
0.261
0.243
0.034
16
TX-3
-01UN
3.18
75.6
0.310
0.288
0.038
14
TX-4
-02UN
4.33
60.2
0.265
0.255
0.034
16
TXWB-3
-03UN
2.78
84.0
0.320
0.300
0.038
14
TXWB-4
-04UN
REQUIREMENTS:
Qualification required.
Construction details: See table I.
Component wire: The component wire shall be in accordance with SAE-AS81044 and shall be tested in
accordance with the following wire ratings and additional requirements.
Temperature rating
150 °C (302 °F) (max.) conductor temperature
Voltage rating
600 volts (root mean square) at sea level
Accelerated aging
Non-blocked
Oven temperature, 300±2 °C (572±3.6 °F) for 6 hours
Water-blocked
Oven temperature, 250±2 °C (482±3.6 °F) for 6 hours
Blocking
150±2 °C (302±3.6 °F)
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 (100% test)
Primary insulation
Impulse test - 6.0 kV (peak) or 3 kHz spark test - 1.5kV root
mean square
Component wire
Impulse test - 8.0 kV (peak) or 3 kHz spark test - 5.5kV root
mean square
Insulation resistance
5000 megohms for 1000 feet (min.)
Life cycle
Non-blocked
Oven temperature, 200±2 °C (392±3.6 °F) for 168 hours
Water-blocked
Oven temperature, 200±2 °C (392±3.6 °F) for 120 hours
2
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