MIL-DTL-22759/85A
Impulse dielectric test: 8.0 kilovolts (peak). Test 100 percent of the wire
Insulation resistance: 5000 megohms for 1000 feet (min.)
Life cycle: 500 hours at 230°C ± 2°C (446°F ± 3.6°F). Dielectric test, 2500 volts (rms), 60 Hz. Use mandrels
coated with polytetrafluoroethylene such that the diameter of the mandrels, after coating, still conform to the
required test mandrels diameters of table VI. After oven exposure, layers shall not separate and or tapes shall not
lift along the insulation or at the ends. (Darkening of the tin coating of the conductors due to the normal air
oxidation shall not be cause for rejection of this test)
Low temperature (cold bend): Use mandrels and weights specified in Table VI. Chamber temperature , -65°C ±
2°C (-85°F ± 3.6°F). Dielectric test, 2500 volts (rms), 60 Hz.
Shrinkage: 0.125 inch (max.) at 230°C ± 2°C (446°F ± 3.6°F).
Smoke: 200°C ± 5°C (392°F ± 9°F); no visible smoke.
Solderability: Not required. This slash sheet is primarily intended for crimp terminations. For solderability
applications use the silver coated copper version of this specification.
Strippability: Not required.
Tape Overlap: In accordance with MIL-STD-2223, method 6005.
Tensile Modulus: Test composite film in accordance with ASTM D 882, Method A
Thermal index: (Test required for initial qualification only). Qualification by similarity to M22759/88
Thermal shock resistance: Oven temperature, 200°C ± 2°C (392°F ± 3.6°F), Maximum change in measurement ,
0.125 inches. No cracking.
Wrap (mandrel wrap): No cracking, no dielectric breakdown. Use mandrels specified in Table VI. Dielectric test,
2500 volts (rms), 60 Hz.
TABLE VI. Test mandrel and test load requirements.
Test Mandrel Diameter 1/
Test Load 1/
Wire
(inches)
(lbs)
Size
(AWG)
Cold Bend
Life Cycle/
Wrap
Cold Bend
Life Cycle/
Bend Test
Bend Test
6.00
15.00
2.00
6.00
8.00
2
6.00
15.00
2.50
8.00
10.00
1
6.00
15.00
3.00
8.00
10.00
0
8.00
20.00
4.00
10.00
12.00
00
10.00
30.00
5.00
10.00
18.00
000
10.00
30.00
6.00
10.00
18.00
0000
Tolerance shall be ± 3 percent of the given values.
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