MIL-DTL-55446D
FIGURE 6. Cable construction 402 conductors.
3.11.5 Cold bend. The insulation shall not develop any cracks visible to the unaided eye after being
subjected to -18 °C for one hour and immediately bent over a .0625 inch (1.59 mm) diameter mandrel.
3.11.6 Flammability. The insulation on a conductor may burn when exposed to an open flame, but
shall be self-extinguishing within 5 seconds after the flame is removed.
3.11.7 Compression strength. The insulation shall withstand a compression load of 1,000 pounds
without failure.
3.12 Physical requirements for jacket.
3.12.1 Tensile strength. The jacket shall have a minimum tensile strength of 1,800 psi.
3.12.2 Elongation. The jacket shall have an elongation of 200 percent minimum.
3.12.3 Aged elongation. The jacket shall have a minimum elongation of 100 percent after aging for
48 hours at 120 °C.
3.12.4 Heat shock. The jacket shall show no cracks when the cable is exposed to heating of
120 °C for one hour while bent around a mandrel (see 4.4.3.4) and then subjected to straightening after
cooling to room temperature.
3.12.5 Cold bend. The jacket shall not develop any cracks when exposed to cold temperatures of
-18 °C for 24 hours and then subjected to bending.
3.12.6 Flammability. The jacket shall be self-extinguishing within 5 seconds after being exposed to
flame for 15 seconds.
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