Arc resistance
The aim of this test method is to make a relative distinction between solid electrical insulating materials.
The ability of the test specimens to resist an arc at a high voltage but with a weak current in the vicinity of the insulating surface is investigated. The test focuses on the time until tracking paths start to form.
Stress table
| Current
in [mA] | Total time
in [s] | Make
in [s] | Break
in [s] |
|---|---|---|---|
| 10 | 0-60 | 0,25 | 1,75 |
| 10 | 60-120 | 0,25 | 0,75 |
| 10 | 120-180 | 0,25 | 0,25 |
| 10 | 180-240 | 60 | – |
| 20 | 240-300 | 60 | – |
| 30 | 300-360 | 60 | – |
| 40 | 360-420 | 60 | – |
| Test specimen | ≥20 mm x ≥15 mm x ≥3,17 mm |
| Test voltage | 12.500 V (50 Hz) cyclical/continuous |
| Test current | 10 mA to 40 mA |
| Failure criteria |
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