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The U240B glass insulator is a high-strength toughened glass insulator, widely used in medium, high, and ultra-high voltage overhead transmission lines for suspending and insulating conductors. It can also be used for insulating and supporting busbars and electrical equipment in power plants and substations.
IEC Stand: U240B
| U | Disc Suspension Insulator |
| 240 | Mechanical failing load of 240kN |
| B | Ball And Socket Type |
| Spacing (S) | 170mm |
| Diameter (D) | 280mm |
| Creepage distance (L) | 400mm |
| Socket coupling | 20/24mm |
| Mechanical failing load | 210kN |
| Mechanical residual strength | 192kN |
| Dry power frequency withstand voltage | 75kV |
| Wet power frequency withstand voltage | 45kV |
| Dry lightning impulse withstand voltage | 110kV |
| Power frequency puncture voltage | 130kV |
| RIV test voltage rms to ground / Max RIV at 1000 kHz | 10 kV / 50 μV |
| Corona visual lest P/C | 18/22 KV |
| Power frequency electric arc voltage | 0.12s/20kA |
| Net weight | 7.2kg |
| Carton Quantity | 3pcs |
Manufactured accordance with IEC60383-1:2023 / GB/T1001.1
