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UL 746A testing

UL 746A testing for electrical properties

The following tests are means to determine the electrical properties of polymeric materials.

Dielectrical breakdown voltage strength (DS)
Comparative tracking index (CTI)
High voltage tracking rate (HVTR)
High voltage, low current, dry arc resistance -- D495

UL 746A resistance to ignition of polymeric materials

The following tests are means to determine the resistance to ignition of polymeric materials.

Hot wire ignition (HWI)
High-current arc ignition (HAI)
High voltage arc resistance to ignition (HVTR)
Glow-wire ignitability test (GWIT, GWFI)

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