railway RRB JE (CBT I + CBT II) Mock Test 2024 Power Systems Transmission and Distribution Overhead Insulators
How much voltage is applied to the insulator during the puncture voltage test of insulators?
1
Voltage of 1.3 times of flash over voltage
2
Voltage of 1.7 times of flash over voltage
3
Voltage of 1.5 times of flash over voltage
4
Voltage of 1.2 times of flash over voltage