Pin type insulator
German standard all our insulators are fabricated and tested in accordance with internation standard.
Pin type insulator
Class DIN | st-10/J | st-15/J | st-20/J | p-20-D | ||
Unit spacing (mm) | 130 | 150 | 185 | 185 | ||
Nominal diameter ( mm ) |
135 |
150 |
175 |
175 | ||
Nominal Voltage (kV) | 10 | 15 | 20 | 20 | ||
Creepage distance ( mm ) | 240 | 270 | 340 | 340 | ||
Power frequency puncture voltage ( kV) | 110 | 120 | 140 | 140 | ||
Electronical failing load | 12 | 12 | 14.7 | 14.7 | ||
Flashover(min) |
Power-frequency voltage | Dry (kV) | 70 | 75 | 90 | 80 |
Wet (kV) | 42 | 53 | 65 | 50 | ||
50% Critical impulse | 100 | 110 | 130 | 130 | ||
Pin type insulator
