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[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. |
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Verified Suppliers
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Line Post Porcelain Insulator ANSI 57-3 / OEM available/ Light gray
Descriptions:
As insulating and supporting conductor in HV transmission & distribution line, post insulators are divided into line post porcelain insulator, cross arm porcelain insulator and long rod suspension insulator, etc. They have characteristic of no puncture, high mechanical strength, excellent insulation and anti-pollution.
Specifications:
| Cat. No. | 12003 | |
| Figure No. | 3 | |
| ANSI class | 57-3S 57-3L | |
| Creepage distance mm | 737 | |
| Dry arcing distance mm | 311 | |
| Cantilever strength kN | 12.5 | |
| Low frequency flashover voltage | Dry flashover kV | 125 |
| Wet flashover kV | 95 | |
Critical impulse flashover voltage | Positive kV | 200 |
| Negative kV | 260 | |
Radio influence voltage data |
Test voltage to ground kV | 30 |
MAX.RIV At 1000kHz μV | 200 | |
| Weight kg | 12 | |
| Applicable Standard: ANSI C29.7 | ||
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.
