Appendix A
Technical Data of UHV AC Electrical Equipment
Table A.1
Main Technical Data of GIS.
| Manufacturer | Pinggao Electric | NHVS | XD Switchgear | |
| Rated voltage (kV) | 1100 | 1100 | 1100 | |
| Rated current (A) | Bus | 8000 | 8000 | 8000 |
| Bushing | 6300 | 6300 | 6300 | |
| Other equipment | 6300 | 8000 | 6300 | |
| 1 min power frequency withstand voltage (kV, rms) | Pole-to-earth | 1100 | 1100 | 1100 |
| Between breaks | 1100 (+635) | 1100 (+635) | 1100 (+635) | |
| Lightning impulse withstand voltage (kV, peak) | Pole-to-earth | 2400 | 2400 | 2400 |
| Between breaks | 2400 (+900) | 2400 (+900) | 2400 (+900) | |
| Switching impulse withstand voltage (kV, peak) | Pole-to-earth | 1800 | 1800 | 1800 |
| Between breaks | 1675 (+900) | 1675 (+900) | 1675 (+900) | |
| Circuit breaker | ||||
| Manufacturer | Pinggao Electric | NHVS | XD Switchgear | ||
| Cooperative ... | |||||
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