High Voltage Tester HVT-70/50 perform DC high-voltage testing of power cables (IEC 60502-2) up to 70 kV, power cables accessories (IEC 61442) as well as AC high-voltage testing, up to 50 kV at 50 Hz, of switchgear, reclosers, dielectric insulators, highvoltage dischargers (arresters), busbars and other dielectric materials with relatively low electric capacitance.