Dalian Hivolt Power System Co.,Ltd.
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BS standard 33kV pin type insulator with Zinc thread brown for distribution lines
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 .