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[China]
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Address: No.2804, 75 Huili Street , Ganjingzi District, Dalian China
Contact name:Canning
Dalian Hivolt Power System Co.,Ltd. |
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porcelain ANSI C29.7 standard line post insulator 57-3 for distribution lines
Description:
ANSI C29.7 standard porcelain line post insulator 57-3 character :
Product technical specifications :
| Technical Specification | Unit | Value | |
| 1 | Total length | mm | 368 |
| 2 | Max. Shed Diameter | mm | 165 |
| 3 | Creepage Distance | mm | 737 |
| 4 | Cantilever Strength | KN | 12.5 |
| 5 | Power frequency flashover Voltage | ||
| dry | KV | 125 | |
| wet | KV | 100 | |
| 6 | Critical Impulse flashover Voltage + | KV | 210 |
| 7 | Radio interference voltage test voltage | KV | 30 |
| Max. RIV at 1 MHz | μV | 200 |
HIVOLT line post insulators 57-3 are suitable for vertical assembled on a wooden or steel crossarm . such type of products are very popular in American market .
The line post insulator 57-3 are one solid piece porcelain . they are free from radio interference without any further treatment. the insulator sheds enable them to withstand attacks from stones , bullets etc.
they are especially useful for service on industrial feeders where maximum reliability is most valuable in providing optimum service continuity.
on the tie top wire groove is provided with a head and neck designed to enable contain most of ANSI standard conductors .
A short bolt or long bolt available for insulator assembly .
Applications:
The ANSI 57-3 line post insulators are suitable for 35kV distribution lines.
it is easy installed vertically on metal or wooden crossarms. tie top procelain can hold conductor firmly and suitable for different size of wires.
Competitive Advantage:
we choose aluminum porcelain C-130 as raw material for insulator porcelain .
the insulator have very light net weight yet high mechanical strength .
it can save transportation cost , and easy for assembly in distribution lines.
the insulator have excellent self-clean character , much easier for maintenance.
we offer 3 years quality guarantee .
OEM product are available .
