| Application: | High-voltage, High-temperature |
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| Material: | Glass |
| Structure: | Suspension Insulator |
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U40B 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 | U40B/110 | |
| Mechanical failing load | kn | 40 |
| Diameter D | mm | 178 |
| Height H | mm | 110 |
| Creepage distance L | mm | 190 |
| Socket coupling | mm | 11 |
| Wet power frequency withstand voltage | kv | 25 |
| Dry lightning impulse withstand voltage | kv | 50 |
| Power frequency puncture voltage | kv | 90 |
| Radio interference voltage(10kV 1MHz) | μv | 50 |
| Corona visual test | kv | 18/22 |
| Power frequency electric arc voltage | ka | 0.12s/20kA |
| Impulse puncture voltage | P.U | 2.8 |
| Net weight per unit | kg | 2.1 |
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