MIL-DTL-24643/2F
TABLE I. Details.
Conductors
Overall diameter
Conductor
Military part no.
Type and size
min.
max.
resistance (ohms)
M24643/2
No.
Size AWG
(inch)
(inch)
-01UN
LSDCOP-1
2
20 (Class B)
11.42
0.235
0.250
-02UN
LSDCOP-1½
2
18 (Class K)
9.00
0.300
0.315
-03UN
LSDCOP-2
2
18 (Class K)
7.16
0.310
0.330
-04UN
LSTCOP-2
3
18 (Class K)
7.16
0.325
0.345
REQUIREMENTS:
Qualification required.
INSPECTION:
Basic Electricals:
Conductor resistance (ohms/1000 feet at 25 °C, max.)
See table I
Voltage withstand (volts, root mean square, min.)
Conductor to conductor
1500
Insulation resistance (megohms/1000 feet, min.)
Conductor to conductor
100
Conductor continuity
No failure
Group A:
Visual and dimensional
No failure
Group B:
Thermoset proof test (percent, max.)
Insulation
50
Jacket (when tested at 200 °C)
50
Twisting and bending endurance
At 75 °C (cycles, min.)
6000
At minus 30±2 °C (cycles, min.)
2000
NOTE: Roller diameters for bending endurance test shall be as follows:
Roller diameter
Cable type and size
(inch, max.)
LSDCOP-1
0.75
LSDCOP-1½
0.95
LSDCOP-2
1.00
LSTCOP-2
1.00
2
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