U40B Glass insulator
Product drawing
Product parameters
| 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 |
Product Information
- Model:U40B
- U Refers To Disc Suspension Insulator
- 40 indicates a rated Mechanical failing load of 40kN
- B For Ball And Socket Type
- 110- indicates that the height of the insulator structure is 110mm.
- 175- indicates that the diameter of the insulator disc is 175mm.
- 190- indicates that the creepage distance of the insulator is 190mm.
- Type: Standard profile Toughened Suspension Type
- Rated mechanical load: 40kn (about 4 tons)
- Purpose: Widely applicable as insulation support for medium and high voltage transmission lines and substation equipment, capable of stable operation under various climatic conditions.
- The product model is in accordance with IEC60383-1:1993，MOD / GB/T1001.1
- The connection structure is in accordance with GB/T4056-2008(IEC60120:1984,MOD) and BS 3288 part lll.
- According to customer requirements, the locking pin can be either W-pin or R-pin.
- lf there is no special instruction, R pin is used for U40B
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