Test item
|
12/20(24)kV
|
18/30(36)kV
|
26/35(40.5)kV
|
A.C. voltage withstand test
|
No flashover, no breakdown at 54kV for 5min.
|
No flashover, no breakdown at 81kV for 5min.
|
No flashover, no breakdown at 117kV for 5min.
|
Partial discharge test
|
20kV, <10pC
|
30kV, <10pC
|
45kV, <10pC
|
Heating cycles voltage test
|
60 cycles at the temperature of 95-100°C, 30kV
|
60 cycles at the temperature of 95-100°C, 45kV
|
60 cycles at the temperature of 95-100°C, 65kV
|
Impulse voltage withstand test at 95-100°C
|
No flashover, no breakdown at 10 positive and 10 negative impulses at 125kV
|
No flashover, no breakdown at 10 positive and 10 negative impulses at 170kV
|
No flashover, no breakdown at 10 positive and 10 negative impulses at 200kV
|
15min, A.C. voltage withstand test
|
30kV, 15min. no flashover, no breakdown
|
45kV, 15min. no flashover, no breakdown
|
65kV, 15min.no flashover, no breakdown
|