08th
Dec
2025
Type 2 protectors against transient overvoltages should be tested with 8/20 µs current impulse wave, simulating lightning secondary effects.
Type 1 protectors against transient overvoltages should be tested with 10/350 µs lightning impulse wave, simulating the effects of direct lightning discharges.
Monitor surge events through an impulse counter for discharges on surge protection devices.
Protectors against transient overvoltages for analogic, ADSL and ISDN telephone lines with screw, RJ, R&M and Krone type connectors.
Type 2 + 3 protectors against transient overvoltages should be tested with 8/20 µs current impulse wave and a combination impulse wave, leaving low residual voltages.
