MIL-DTL-24640/3E
TABLE I. Construction details.
Cable diameter
Cable
Jacket
Conductor
(inch)
weight
AWG
thickness
resistance
PIN M24640/3
Type number
(pounds
size
(inch)
per 1000
per 1000
(min.)
(max.)
(min.)
feet (ohms)
feet) (max.)
4.98
63.0
0.282
0.262
0.031
16
FX-3
-01UN
3.18
92.6
0.335
0.311
0.034
14
FX-4
-02UN
4.33
60.2
0.300
0.275
0.032
16
FXWB-3
-03UN
2.78
84.0
0.350
0.325
0.035
14
FXWB-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)
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 (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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