Electric Pole Suspension Glass Insulator U70B Disc Glass Insulator U70b for High Voltage
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- Supplier: RongZhao (Fuzhou) Imp & Exp Co. Ltd.
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Product Overview
Description
Electric Pole Suspension Glass Insulator U70B
Disc Glass Insulator U70b for High Voltage
| Product Model | U40B/110 | U70B/140 | U100B/140 | U120B/146 | U160B/170 | |
| Main dimension,mm | D | 178 | 255 | 255 | 255 | 280 |
| H | 110 | 140 | 146 | 146 | 170 | |
| Creepage distance,mm | 185 | 320 | 320 | 320 | 400 | |
| Socket soupling,mm | 11 | 16 | 16 | 16 | 20 | |
| Mechanical failing load,kN | 40 | 70 | 100 | 120 | 160 | |
| Mechanical routine test,Kn | 20 | 35 | 50 | 60 | 80 | |
Wet power frequency withstand vol.,KV | 25 | 40 | 40 | 40 | 45 | |
Dry lightning impulse withstand vol.,KV | 50 | 100 | 100 | 100 | 110 | |
| Impulse puncture voltage,P.U | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | |
| Power frequency puncture vol., | 90 | 130 | 130 | 130 | 130 | |
| Radio interference voltage,uV | 50 | 50 | 50 | 50 | 50 | |
| Corona visual test,kV | 18/22 | 18/22 | 18/22 | 18/22 | 18/22 | |
| Power frequency electric arc voltage | 0.12s/20Ka | 0.12s/20Ka | 0.12s/20Ka | 0.12s/20Ka | 0.12s/20Ka | |
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