| 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 | |
| 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 |
CTV 175 tempered glass insulator is widely used in 10 kV to 66 kV power transmission lines. It features a nominal diameter of 175 mm, height of 110 mm, creepage distance of 185 mm, coupling size of 11A (11 mm), and a minimum mechanical damage load of 40 kN. The insulator weighs approximately 1.7 kg.
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