Line Post Insulator 1

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

ANSI class		57-1S	57-2S	ze="4">57-3S	57-4S	57-5S
		57-1L	ze="4">57-2L	57-3L	57-4L	57-5L
Fig No.		3	4	5	1	2
Dimensions of the pin mm		M16	M20(M16)	M20	M20	M20
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 flashover voltage	Dry flashover kV	80	110	125	150	175
	Wet flashover kV	60	85	100	125	150
Optical Impuse flashover voltage	Positive kV	130	180	210	255	290
	Negative kV	155	205	260	340	380
Radio influence voltage data	Test voltage to ground kV	15	22	30	44	44
	At 100kHZ Max. RIV uV	100	100	200	200	200
Weight kg		5	9.8	12	16	18