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Tie top line post insulators

Tie top line post insulators are one of line post insulators. Line post insulators are widely used in the transmission & distribution lines which the voltage can up to 132kv.

Tie top line post insulators

Specifications for tie top line post insulators:

Type   57-1 57-2 57-3 57-4 57-5
Power frequency flashover voltage Dry KV 70 100 125 140 160
Wet KV 50 70 95 110 130
Critical impulse flashover voltage KV 120 160 200 230 265
Radio interference voltage Test voltage to ground KV 15 22 30 44 44
Max. RIV at 1 MHz μV 100 100 200 200 200
Leakage distance Inches 14 22 29 40 45
Dry arcing distance Inches 6.5 9.5 12.25 14.5 17.25
Cantilever strength Pounds 2800 2800 2800 2800 2800

Features for tie top line post insulators:
Wet-process porcelain
Non-puncturable design
Application Standard: IEC, ANSI, BS, AS, DIN, CAN, GB and etc.
Color: light gray, brown, white, and etc.

Tie top line post insulators are mounted rigidly on supporting structure by means of a short or long stud. Welcome to contact us for more details!


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