Pointer Type Spark Tester for wire and cable is a necessary test
equipment for wire and cable manufacturing process and using high
voltage to test the insulation quality.The EDM sensitivity <600μA, UL1581-1990 requires the series of
sparks machine using epoxy casting high-voltage
transformer,moisture-proof performance, strong anti-interference
ability, , they can always check the work is normal with self-test
button (breakdown, count , sound and light alarm) to ensure test
accuracy.