|
[China]
Trade Verify
Address: Room 3007, Building A, Shangcheng, No.47 Kaiyuan East Road Xingsha, Changsha city, Hunan Province.
Contact name:Meggy Li
Changsha Power Electric Co.,Ltd. |
|
Verified Suppliers
|
|
|
Overhead Transmission Line Post Porcelain Insulator ANSI 57-2/ Light gray
Descriptions:
| ANSI CLASS | Creepage distance (mm) | Dry arcing distance (mm) | cantilever strength (kN) | Lower frequency flashover voltage | Critical impulse flashover voltage | Test voltage to ground (kV) | |
| Dry(kV) | Wet(kV) | Positive(kV) | |||||
| 57-2 | 559 | 241 | 12.5 | 100 | 70 | 160 | 22 |
Line post insulators shall conform in all respects to the requirements of ANSI standard. Metal parts shall be made of a good commercial grade of malleable iron, ductile iron, steel, or aluminum. Ferrous parts, other than stainless steel, shall be galvanized in accordance with ASTM A153.
Competitive advantages:
Reasonable insulation structure high reliability of interturn insulation.
Stainless steel flange low magnetic inductivity high resistivity.Small volume light weight.
Convenient transportation and flexible installation.
Low OSS.Low temperature rise.High mechanical strength, strong weather ability.
Outstanding crack resistance.
Low thermal expansion coefficient.
