LONG-ROD 150 kV COMPOSITE INSULATORS WITH SILICONE HOUSING

BASIC TECHNICAL DATA LS 70/150-III TB LS 70/150-IV TB
Rated voltage, kV 150
Maximum working voltage, kV 172
SML,  kN 70
Withstanding power-frequency voltage when dry, kV, not less than 410 500
Withstanding power-frequency voltage under rain, kV, not less than 370 450
50% flashover voltage of the commercial frequency of a polluted and wet insulator, active value, êV, not less than 240 232
Withstanding lightning impulse voltage, kV, not less than 660 750
Mounting length, H, mm 1550±20 1896±20
Arching length, L, mm 1317 1658
Leakage distance, mm, not less than 4250 5400
Pollution rated IEC 60815 III IV
Weight , kg, approximately 5,1 5,5

There are four types of insulators classified by the end fitting types: TB, SB, ST, TT. Other end fittings are available by a special request.

Insulators conform to the requirements of IEC 61109

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