DC Spark Tester

DC Spark Tester
We offer DC (Direct Current) Spark Tester that were designed for telecommunications cables and are allowed in some UL standards. Because DC generates practically no corona and no heat, it is a gentler tester and can be used to test delicate insulation with weak dielectric properties. It is also recommended for wires with foamed dielectric.

Since DC test voltages do not decrease as a result of capacitance, very large wires and multiple conductors can be tested with one power supply. DC is often used in cabling operations, testing as many as 25 twisted pair within a single group electrode.