Description:
BS standard 33KV pin type insulator technical profile shown as below table :
| |
Technical Specification |
Unit |
Value |
| 1 |
Total Height |
mm |
340 |
| 2 |
Max. Shed Diameter |
mm |
255 |
| 3 |
Creepage Distance |
mm |
845 |
| 4 |
Cantilever Strength |
KN |
10 |
| 5 |
Power frequency withstand Voltage |
|
|
| |
dry |
KV |
95 |
| |
wet |
KV |
60 |
| 6 |
Puncture Voltage |
KV |
180 |
The 33KV pin type porcelain insulators are specially designed for South African market.
because the target market has very heavy rain , and it is coastal area.
so the insulator design should have bigger creepage distance , normally it should be more than 31mm/kV.
the product are generally used for HV voltage distributions lines.
Glaze color can be grey or chocolate brown . the insulator thread are cemented zinc thimble ,
but in this market , there are no any requirement on semi-conductive glaze .
so the insulator top are normal type design .
when insulator design ready , we need to prepare samples , and tested them according to type test items .
test items listed below:
1: Power frequency dry withstand voltage test
2: Power frequency wet withstand voltage test
3: Lightening impulse withstand voltage test ( Positive and Negative )
4: Temperature cycle test
5: Bending load test
Applications:
the 33 kV pin type insulator for HV distribution lines especially in heavy pollution area .
it is very common some african countries ..
Competitive Advantage:
1 All of pin type insulators are well tested in our factory , test report available for customer's approval .
2 we can make stock based on customer's requirement . when they need the product , we can deliver it promptly.
3 One stop shopping , we manufacture all different type of insulators on different voltage level , so when customer make inquiry , we will provide a list of products to save customer's cost and time .
