For 100-220kV bare busbar, it can be verified that the full corona condition does not occur on sunny days, that is, the critical voltage of the bare busbar should be greater than the maximum working voltage
For 100 to 220kV bare bus lines, the critical voltage of the bare bus should be greater than the maximum operating voltage, which can be verified according to the condition that a full corona does not occur on a sunny day.
For 100-220kv bare bus, it can be verified according to the condition of no overall corona in sunny days, that is, the critical voltage of bare bus shall be greater than the maximum working voltage<br>