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Arc Resistance
National Technical Systems (NTS)
The intent of arc resistance testing is to distinguish between solid electrical insulating materials. It examines the specimen’s ability to resist an arc with high voltage and low current exposed to the material’s insulating surface. The ASTM arc resistance test for dry and uncontaminated materials centers on the time elapsed until tracking paths form.
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High-Current Arc Ignition
(HAI) UL 746A - National Technical Systems