PDF
Current position: Orient > Porcelain Post Insulator Models >
ANSI class 57-2 porcelain line post insulator

ANSI class 57-2 porcelain line post insulator is used on distribution line and transmission line upto 55KV. Tie-top line post insulator is mounted rigidly on supporting structure by means of a short or long stud.

ANSI C29.7 standard covers high-voltage line-post-type insulators made of wet-process porcelain and used in the transmission and distribution of electrical energy. ANSI class 57-2 porcelain line post insulator is mounted rigidly on supporting structure by means of a steed or bolts.

ANSI class 57-2 porcelain line post insulator              ANSI class 57-2 line post insulator

ANSI class 57-2 porcelain line post insulator metal parts:
Its 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. The metal part is used with stud, so also called stud base.

ANSI class 57-2 porcelain line post 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

ANSI class 57-2 porcelain line post insulator products are sampled and the samples are tested to destruction! The people of Orient are dedicated to quality and product performance! More details about porcelain line post insulators can be shown for you through emails or online contact.
 


Relative Articles:
Porcelain line post insulators
Dry process porcelain line post insulator
Porcelain line post insulator specifications
Porcelain line post insulator with studs
Porcelain line post insulator tests

Orient is an international line post insulator manufacturer and supplier of high quality porcelain line post insulators and porcelain pin post insulator.
Copyright ©Zhengzhou Orient Power Co., Ltd. All Rights Reserved.     sales@orientinsulators.com     Tel: +86 13673997131