Typical number of disc insulator units for standard line voltages
Nominal system phase to phase voltage kV | Basic insulation level BIL kV | Min. qty of disc insulators pcs |
| 7.5 | 95 | 1 |
| 14.4 | 110 | 2 |
| 23 | 150 | 2 |
| 34.5 | 200 | 3 |
| 46 | 250 | 4 |
| 69 | 350 | 5 |
| 115 | 550 | 8 |
| 138 | 650 | 9 |
| 161 | 750 | 10 |
| 230 | 1050 | 14 |
| 345 | 1300 | 20 |
| 420 | 1425 | 24 |
| 550 | 1550 | 34 |
© 2016 Shenyang Tronco Electric Co., Ltd | All Rights Reserved.
