Audited Supplier
| ANSI Class Type | 57-1 | 57-2 | 57-3 | 57-4 | 57-5 | |
| Creepage Distance, mm | 356 | 559 | 737 | 1015 | 1145 | |
| Dry Arcing Distance, mm | 165 | 241 | 311 | 368 | 438 | |
| Cantilever Strength, kN | 12.5 | 12.5 | 12.5 | 12.5 | 12.5 | |
| Low Frequency Flashover Voltage | Dry, kV | 80 | 110 | 125 | 150 | 175 |
| Wet, kV | 60 | 85 | 100 | 125 | 150 | |
| Critical Impulse Flashover Voltage | Pos., kV | 130 | 180 | 210 | 255 | 290 |
| Neg., kV | 155 | 205 | 260 | 340 | 380 | |
| Radio Influence Voltage Date | Test Voltage to Ground, kV | 15 | 22 | 30 | 44 | 44 |
| Max. RIV at 1000 KHz, uV | 100 | 100 | 200 | 200 | 200 | |
We are TRIGOLD POWER CO., LTD established for power line products with more than 30 years experience. We have owned our manufacturing plants to produce most of the materials for transmission line and substation. Our business scope is mainly Europe,Asia and Africa countries.
One of our main products is porcelain insulator for up to 500kV overhead line and for distribution as well, such as suspension insulator, post insulator, pin insulator, spool and strain insulator. Our porcelain suspension insulator is proved as best quality in the type test by KEMA lab (a member of STL) in Netherland.
Another main product is polymer insulator for up to 220kV transmission line, including suspension type, pin type and post type for horizontal mounting.
The last core business is hardwares including power fittings and steel structure. We could make various accessories up to 500kV for transmission line and substation. Our product range include aluminum alloy clamps, casting and forged steel fittings, preformed dead end and armor rod, PG clamps, OGW fittings and so on. We are able to supply complete suspension strings and tension strings accodring to customer specificaton.
We have full quality assurance system and ISO 9001 certificate to ensure our products quality and to meet the relevant standard. We could supply the products in accordance with IEC, ANSI, ASTM, AS, BS, DIN or ISO standard.With excellent quality, outstanding service and reasonable price, we warmly welcome friends in all over the world to establish a mutual cooperation relationship with us to reach great development together. We will share with you and hope you share with us. Please do not hesitate to contact with us if you have any requirement.
1.Why is quotation price different from above page?
In order to supply best price for customer, our price is always close link to raw materials cost, currency exchange rate, and order quantity. We can also supply customized products according to customer request. Please contact us directly before given order.3.What is the payment term?
Our standard payment for international business is T/T and L/C. Please contact us for other payment term.
All products have 12 months warranty after shipment. It is available to extend to 18-24 months for tender proposal. All products have minimum 10 years working life unless otherwise noted.
