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What is Lightning Impulse Voltage Testing Procedures about?
There are several standard procedures used to test the withstand of insulation against lightning and switching impulse voltages: 1. Procedure A applies 3 impulses at the rated withstand voltage and checks for failures. Procedure B applies 15 impulses and allows up to 2 disruptive discharges. 2. The up-and-down and multi-level methods apply varying impulse voltages to determine the voltage at which breakdown occurs 50% of the time (V50). 3. For switching impulse tests, equipment above 300kV is tested us
- Author
- Azimah Saleh
- Language
- EN