Electrical Wire Insulation Flammability (NASA Test 4)

The purpose of this test is to determine whether an electrical wire insulation material, when exposed to a standard ignition source, will self-extinguish and not transfer burning debris, which can ignite adjacent materials. The test evaluates the candidate wire insulation material in the worst-case atmosphere to which the wire exposure is anticipated. Five test specimens are mounted vertically in a test stand with a paper sample mounted adjacent to it and tested one at a time. Each specimen is ignited at the bottom by  an ignition system and allowed to burn until each self-extinguishes. The burn length, the linear distance of consumed specimen, and whether or not ignition of the paper occurred  by a transfer of burning debris is measured and recorded…Learn more