MIL-DTL-24640/19E
TABLE I. Construction details.
Component
Jacket
Cable weight
Conductor
Cable diameter
wire diameter
PIN
Type
AWG
thickness
(pounds per
resistance per
(inch)
(inch)
M24640/19
number
size
(inch)
1000 feet)
1000 feet
(min.)
(max.)
(ohms)
(min.)
(max.)
(min.)
(max.)
-01UN
DXW-3
16
0.075
0.081
0.034
0.239
0.257
50.0
4.35
-02UN
DXW-4
14
0.091
0.097
0.034
0.281
0.303
71.0
2.88
TABLE II. Construction details - overall shield.
Component
Cable diameter Cable weight Conductor
wire diameter Jacket thickness
PIN
Type
AWG
(pounds per resistance
(inch)
(inch)
M24640/19
number
size
(inch) (min.)
1000 feet) per 1000 feet
(max.)
(ohms)
(min.) (max.)
(min.) (max.)
-01UO
DXOW-3
16
0.075 0.081
0.034
0.294
0.316
98.6
4.35
-02UO
DXOW-4
14
0.091 0.097
0.034
0.328
0.354
125.4
2.88
REQUIREMENTS:
Qualification required.
Component wire: For polyimide tape constructions, the following additional tests shall be applicable in
accordance with MIL-DTL-81381.
Temperature rating
150 °C (302 °F) (max.) conductor temperature
Voltage rating
600 volts (root mean square) at sea level
Blocking
Oven temperature, 150±2 °C (302±3.6 °F) no sticking of
conductors
Flammability
3 seconds (max.) after flame
3.0 inches (max.) flame travel
No flaming of tissue paper
Humidity resistance
5 megohms for 1000 feet (min.) insulation resistance after
humidity exposure
Dielectric test
8.0 kV, 100 percent impulse test
Insulation resistance
2500 megohms for 1000 feet (min.)
Polyimide cure test
No cracking
Shrinkage
0.062 inch (max.) at 180 °C
Surface resistance
5 megohms inches (min.), initial and final readings
Thermal shock
Oven temperature, 150±2 °C (302±3.6 °F)
Maximum change in measurement
0.031 inch
2
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