OUTDOOR POST STATION 10kV COMPOSITE INSULATORS

BASIC TECHNICAL DATA IOSK 4/10-IV-1
IOSK 4/10-IV-3
Rated voltage, kV 10
Maximum working voltage, kV 12
Withstanding power-frequency voltage when dry, kV, not less than 122
Withstanding power-frequency voltage under rain, kV, not less than 71
50% flashover voltage of the commercial frequency of a polluted and wet insulator, active value, êV, not less than 27
Withstanding lightning impulse voltage, kV, not less than 150
Bending SML,  kN, not less than 4
Spinning  SML,  kN*m, not less than 150
Leakage distance, mm, not less than 500
Pollution rated IEC 60815 IV
Weight , kg, approximately 1,8

Insulators conform to the requirements of IEC

Mounting dimensions of insulators

Marking L, mm D, mm
IOSK 4-10-IV-1 36 53
IOSK 4-10-IV-3 40 53

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