|
No.
|
heat
shrinkable bus bar insulating tube
Test items
|
heat
shrinkable bus bar insulating tube
Standard requirements
|
heat
shrinkable bus bar insulating tube
Test result
|
|
1
|
1min phase-phase power frequency withstand test for
heat
shrinkable bus bar insulating tube
|
42kV no flash and no breakdown
|
42kV,1 min,no flash and no breakdown sample
|
|
2
|
phase-phase impulse voltage test
for
heat
shrinkable bus bar insulating tube
|
75KV 15 times phase-phase impulse
withstand test of the positive
and the negative respectively, no flash and no breakdown
|
75kV 15 times phase-earth shock withstand
test of the positive and the negative
respectively; no flash and no breakdown sample
|
|
3
|
1min phase-earth power frequency withstand test
for
heat
shrinkable bus bar insulating tube
|
42kV no flash and no breakdown
|
42kV,1 min, no flash and no breakdown sample
|
|
4
|
phase-earth impulse-voltage test for
heat
shrinkable bus bar insulating tube
|
75KV 15 times phase-earth impulse
withstand test of the positive and
the negative respectively; no flash
and no breakdown
|
75kV 15 times phase-earth shock withstand
test of the positive and the negative
respectively; no flash and no breakdown sample
|
|
5
|
temperature rise test
for
heat
shrinkable bus bar insulating tube
|
the temperature rise of the copper
should not over the bare copper's
when the insulated tube shrunk in
the below 40℃surrounding.
|
the temperature rise of the bare
copper: 47.7℃ the temperature rise
of the insulated copper bus-bar:41.4℃
|
|
6
|
Withstand test of the heat-shrinkable tube
for
heat
shrinkable bus bar insulating tube
|
20kV, 1min no breakdown
|
20kV, 1min no breakdown
|