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ANSI 57-11 porcelain line post insulator,vertical line post insulators

ANSI 57-11 porcelain line post insulator is a kind of vertical line post insulators with clamp top. There are no internal bursting forces from pins or inserts to damage porcelain.

As used in the title and elsewhere in ANSI C29.7 standard, the term “insulator” shall mean any of the assemblies shown, whether they consist of a single piece of porcelain together with its metal parts or of two of more such porcelains bolted together to form a rigid assembly. As used in this standard, the term “unit”, “units”, “insulator unit”, or “insulator units” shall mean any single-piece porcelain assembly together with its metal parts. So, in this article, it always means ANSI 57-11 porcelain line post insulator or vertical line post insulators.

ANSI 57-11 porcelain line post insulator              porcelain line post insulator ANSI 57-11

Vertical line post insulator Color is not a part of this standard. Orient provides gray or brown porcelain line post insulators. If gray is required, it shall be in accordance with ANSI Z55 and conform to Munsell notation 5BG 7.0/0.4 with the following tolerances:
1) Hue:±12(3G to 7G)
2) Value:±0.5
3) Chroma:-0.2 to +0.6

ANSI 57-11 porcelain line post insulator technology parameters:

Type 57-11
Creepage distance mm 356
Dry arcing distance mm 165
Cantilever strength KN 12.5
Power frequency flashover voltage Dry KV 70
Wet KV 50
Critical impulse flashover voltage Positive KV 120
Negative 155
Radio interference voltage Test voltage to ground KV 15
Max. RIV at 1 MHz μV 100

As a vertical line post insulator, ANSI 57-11 porcelain line post insulator stud mounted base is recommended for mounting on pole gains, brackets towers or structures. More details about these vertical line post insulator products please send e-mail to us freely.

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Orient is an international line post insulator manufacturer and supplier of high quality porcelain line post insulators and porcelain pin post insulator.
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