In this Laboratory are usually performed Short-circuit current withstand capability test and Internal arc test on the following LV equipment:
- Circuit Breakers for industrial uses,
- Switches, disconnectors, switch-disconnectors,
- LV Assemblies,
- Contactors and motor-starters,
- Bus ducts, Fuses .
Whatever the Laboratory power supply (from an incoming HV Line or by Short-circuit Generator) a suitable step-up transformer has to be used to obtain the required very high short-circuit current (up to 300 kA).