Line Post Insulator 3

Line Post Insulator used on distribution line and transmission line upto 132KV. It is mounted rigidly on supporting structure by means of a steed or bolts. It is non- puncturable design.

To the type of connecting with the conductor, Line Post Insulator can be tie top design or clamp top design. To the mounting direction, it can be horizontal or vertical.The cantilever strength can be 5KN, 10KN,12.5KN, 16KN.

Applicable Standard: ANSI C29.7, IEC383, BS137

Color: Brown, Grey White

Main dimensions and standard particulars

Class ANSI	57-21	57-22	57-23	57-24	57-25
Creepage distance/mm	356	559	737	1015	1145
Dry arcing distance/mm	165	241	311	368	438
Cantilever strength/KN	12.5	12.5	12.5	12.5	12.5
Low frequency Dry flashover/ kv	80	110	125	150	175
Low frequency Wet flashover/ kv	70	100	115	135	160
Critical Impuse flashover, Pos/kv	130	180	210	255	290
Critical Impuse flashover, Neg/kv	155	205	260	340	380
Test voltage to ground/kv	15	22	30	44	44
Maximum RIV at 1000KHZ/uv	100	100	200	200	200
Net weight Each Approx/kg	7.5	10.5	12.7	16.8	9.5
Number in Standard package	6	3	3	2	2