Experimental Study of Live Working Safety Distance on UHV DC Transmission Line by Helicopter Hanging Basket

摘要

In order to determine the safety distance required for live working of UHV DC transmission lines by helicopter hanging basket, the tests were carried out and analyzed in this paper. Firstly, based on the characteristics of the arrangement of poles and lines of UHV DC transmission lines, the helicopter basket method of entering and exiting equipotential bonding between the lines was analyzed. Then, the minimum safety distance test, when the basket is in a typical working position during live working, and different combinations test of gap distances are carried out. The minimum safety distance and the minimum combined gap distance required for live working of the helicopter basket method are determined. The minimum safety distance for the live working of the helicopter is given, which provides experimental evidence for the development and promotion of helicopter live working.