Abstract

In order to determine the required live working safety distance for 750kV double circuit transmission line in different altitude areas of China, by using the test data of 750kV double circuit transmission line in the low altitude areas, and combining the common altitude correction methods, the live working safety distances of different altitude correction methods are obtained. By comparing and analyzing the results of different analysis methods, the required minimum approach distances and minimum combined gap distances of live working are recommended under different working conditions in the altitude of 1000m ~ 5000m areas. The results could provide technical reference for 750kV double circuit transmission line in different altitude areas.

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