Appendix D
Technical Data of UHV DC Transmission Lines
Table D.1
Technical Data of UHV DC Transmission Lines.
| Technical Data | Xiangjiaba–Shanghai ±800 kV UHV DC Transmission Line | |
| Rated operating voltage (kV) | ±800 | |
| Maximum operating voltage (kV) | ±816 | |
| Transmission capacity (MW) | 6400 | |
| Rated current (A) | 4000 | |
| Minimum clearance | Under switching overvoltage for common lines | At an altitude of 500 m: 5.5 m |
| At an altitude of 1000 m: 5.7 m | ||
| At an altitude of 2000 m: 6.2 m | ||
| Under operating voltage for common lines | At an altitude of 500 m: 2.1 m | |
| At an altitude of 1000 m: 2.3 m | ||
| At an altitude of 2000 m: 2.5 m | ||
| For large-crossing lines | 6.1 m under switching overvoltage | |
| 2.55 m under operating voltage | ||
| Minimum height of conductor above ground (m, ... | ||
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