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. Connected fitting type: tie top conductor binding type

and clamp top with vertical or horizontal mounting.
Cantilever strength can be 5KN, 10KN, 12.5KN, 16KN.
Main type:
ANSI C29.7 type: 57-1, 57-2, 57-3, 57-4, 57-5, 57-11, 57-12, 57-13, 57-14, 57-15,

57-21, 57-22, 57-23, 57-24, 57-25, 57-31, 57-32, 57-33, 57-34, 57-35
Other type according to IEC383 and BS137.