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Electric Pole Suspension Glass Insulator U70B Disc Glass Insulator U70b for High Voltage
33kv High voltage U70 disc toughed glass insulator
has become popular in transmission and distribution system. Annealed tough glass is used for insulating purpose. Glass insulator has numbers of advantages over conventional porcelain insulator
| IEC designation | U70B/127 | |
| Diameter D | mm | 255 |
| Height H | mm | 127 |
| Creepage distance L | mm | 320 |
| Socket coupling | mm | 16 |
| Mechanical failing load | kn | 70 |
| Mechanical routine test | kn | 35 |
| Wet power frequency withstand voltage | kv | 40 |
| Dry lightning impulse withstand voltage | kv | 100 |
| Impulse puncture voltage | P.U | 2.8 |
| Power frequency puncture voltage | kv | 130 |
| 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 | 3.5 |
Seven 7
Marketing Manager
Jiangxi Johnson Electric Co.,Ltd
Tel:0086-799-7513666
Fax:0086-799-7513777
Mobile:+8615679979216
Wechat:395311674
Address:Room 317,Zhongchuang Industrial,Feitian Internet,Luxi County,
Pingxiang city, Jiangxi Province, China