40kn Glass Insulator U40b for Korea, Japan, Singapore and Indonesia
40kn Glass Insulator U40b for Korea, Japan, Singapore and Indonesia image
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Product Details
IEC designation | U40B/110 | |
Diameter D | mm | 178 |
Height H | mm | 110 |
Creepage distance L | mm | 185 |
Socket coupling | mm | 11 |
Mechanical failing load | kn | 40 |
Mechanical routine test | kn | 20 |
Wet power frequency withstand voltage | kv | 25 |
Dry lightning impulse withstand voltage | kv | 50 |
Impulse puncture voltage | P.U | 2.8 |
Power frequency puncture voltage | kv | 90 |
Radio influence voltage | μv | 50 |
Corona visual test | kv | 18/22 |
Power frequency electric arc voltage | ka | 0.12s/20kA |
Net weight per unit | kg | 2.1 |
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