As one kind of horizontal porcelain line post insulator, ANSI class 57-2 line post type insulator has a better performance for its perfect technology, and the design tests also guarantee the quality and safety of these insulators.
ANSI class 57-2 line post type insulator specifications:
Non-puncturable design
Application Standard: IEC, ANSI, BS, AS, DIN, CAN, GB and etc.
Color: light gray, brown, white, sky blue and etc.
Non-standard products: Designed by us or specified by the customers.
ANSI class 57-2 line post type insulator parameters:
Type | 57-2 | ||
Power frequency flashover voltage | Dry | KV | 100 |
Wet | KV | 70 | |
Critical impulse flashover voltage | KV | 160 | |
Radio interference voltage | Test voltage to ground | KV | 22 |
Max. RIV at 1 MHz | μV | 100 | |
Leakage distance | Inches | 22 | |
Dry arcing distance | Inches | 9.5 | |
Cantilever strength | Pounds | 2800 |
Porcelain line post insulators are made as per ANSI C29.7, and this standard is periodically reviewed for any revisions necessary to keep it current with advancing technology.
Porcelain tie-top line post type insulator is made of good commercial-grade wet-process porcelain. The entire porcelain surface of the insulator, with the exception of a firing surface, shall be glazed. The entire surface shall be relatively free from imperfections.
ANSI class 57-2 line post type insulator is only one of our products. Situated in Zhengzhou, China, Orient is a famous enterprise mainly manufacturing all types of electrical insulators and electric apparatus for both domestic and international markets.
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