How is the heat resistance determined?
FAQ'S ON HEAT RESISTANCE
GLOW WIRE TESTING
DIN EN 60695-2 / UL94
Underwriters Laboratories' UL94 regulation has established rules for performing a non-flammability test, which uses a scale to classify the flammability of plastics.
With the glow wire test according to DIN EN 60695-2 (DIN EN 60695-2-10 (2014-04): Fire hazard testing - Part 2-10: Glow wire tests - Glow wire test equipment and general test method), a test of the enclosure is performed to assess the fire hazard.
With the glow wire test according to DIN EN 60695-2 (DIN EN 60695-2-10 (2014-04): Fire hazard testing - Part 2-10: Glow wire tests - Glow wire test equipment and general test method), a test of the enclosure is performed to assess the fire hazard.
| V-0 | V-1 | V-5 | |
|---|---|---|---|
| afterburning test after each firing | < 10 s | < 20 s | < 30 s |
| Total burning time per set (10 Flaming) | < 50 s | < 250 s | < 250 s |
| Afterburning time / afterglow after the 2nd flame | < 30 s | < 60 s | < 60 s |
| Burn-up to the retaining clip | no | no | no |
| cotton wool inflammation | no | no | yes |
