Details

IEC Porcelain disc suspensiion insulators Class Type Fig.NO. Unit spacing (mm) Disc diam-eter (mm) Leak-age dista- nce (mm) Rated E & M failing load (kN) Rou-ntine ten- sion load (KN) Impact failing load (mm) Wet Power Frequ-aency With- stand Voltage KV Ling-thing Imp- ulse with stand Volt- age KV Radio Influece Voltage Power- freg punc- ture voltage (KV) Test Volt- age To Gro-und KV Max Riv At 1 MHz V U40B 1 110 170 190 40 20 5 30 75 7.5 50 90 U40BP 1 110 210 295 40 20 5 35 90 10 50 90 U70BS 3 127 255 295 70 35 6 40 100 10 50 110 U70BL 3 146 255 295 70 35 6 40 100 10 50 110 U70C 2 146 255 295 70 35 6 40 100 10 50 110 U70BLP 3 146 280 440 70 35 6 42 110 10 50 120 U70CP 2 146 280 440 70 35 6 42 110 10 50 120 U100BS 3 127 255 295 100 50 7 40 100 10 50 110 U100BL 3 146 255 295 100 50 7 40 100 10 50 110 U100C 2 146 255 295 100 50 7 40 100 10 50 110 U100BLP 3 146 255 440 100 50 7 42 110 10 50 120 U100CP 2 146 255 440 100 50 7 42 110 10 50 120 U120B 3 146 280 295 120 60 7 40 100 10 50 110 U120C 2 146 280 295 120 60 7 40 100 10 50 110 U120BP 3 146 280 440 120 60 7 42 110 10 50 120 U120CP 2 146 280 440 120 60 7 42 110 10 50 120 U160BS 4 146 280 315 160 60 10 40 100 10 50 110 U160BSP 4 146 330 440 160 80 10 45 125 10 50 110 U160BL 4 146 280 340 160 80 10 42 105 10 50 110 U160BLP 4 146 330 525 160 80 10 45 130 10 50 110 U210B 4 170 330 370 210 105 10 42 110 10 50 120 U210BP 4 170 330 525 210 105 10 45 130 10 50 120