26/35 KV cold shrink termination and middlt joints testing reports |
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Working frequency voltage test | 117kV,5min no flashover, no breakout | 117kV,5min no flashover and no breakout of the sample | |
Working frequency voltage test (under raining) | 104kV,5min no flashover, no breakout | 104kV,5min no flashover and no breakout of the sample | |
Partial discharge testing(under raining) | the discharge less than 10pC under 45kV | under the 45kv, the discharge is less then 3pc for each sample | |
Impulse voltage test(90-95℃) | heating the conductor to 90-100℃, 200kV, positive and negative for 10 times, combination of sample testing without flashover and breakout | heating the conductor to 90-100℃ under 95kv voltag, for three load cycle test, no flashover and breakout | |
| heating the conductor to 90-100℃ under 65kv voltage, for 3 times load cycle test, combination of sample testing without flashover and breakout | under 65kv, heating the conductor to 90-100℃ ,complete 3 times load cycle test | |
Partial discharge testing(90-100℃) | heating the conductor to 90-100℃,450kv, the discharge is less than 10pc | heating the conductor to 90-100℃,45kv, the discharge os the sample is less than 2pc | |