Extra-high voltage alternating current circuit basket method equipotential operating path planning method by taking the considering environmental factors

Abstract

The present invention provides an extra-high voltage alternating current circuit basket method equipotential operating path planning method by taking the considering environmental factors. Meteorological parameters of a geographic position where an extra-high voltage alternating current circuit hot-line work tower is located to obtain an air humidity H, an environment temperature T and the currentair pressure P when operation is performed, and on this basis, the air relative dielectric constant is obtained; the position of an equipotential worker in the basket is preliminarily determined through the determination of the operating rope length and the determination of the combined gaps to perform electric field calculation for the human body surface field intensity of each operating track point; the human body surface field intensity of each operating point is compared to a critical corona field intensity of a wire to finally determine ten operating track points, and the ten operating track points meeting requirements are connected to form an arc to obtain an extra-high voltage alternating current circuit basket method equipotential operating path. The method provided by the invention considers the operating tower environmental factors, and the basket method equipotential operating path planned for the extra-high voltage alternating current circuit provides theoretical basis andguidance for the safety operation of the hot-line work.

Description

technical field [0001] The invention relates to a method for planning equipotential operation paths of ultra-high voltage AC lines by hanging basket method in consideration of environmental factors, and relates to the technical field of planning of equal potential operation paths of ultra-high power transmission line engineering and hanging basket method. Background technique [0002] The equipotential operation method is the most widely used in live work on high-voltage transmission lines due to its technical advantages. However, when live work is performed on UHV AC transmission lines, due to the high operating voltage of UHV AC transmission lines, the electric field around the charged body is high. UHV transmission lines are long, and the geography and climate environment along the line are complex, and the safety of workers is more affected. Therefore, it is necessary to study the safe distance of live work, the combination gap, and the best way for workers to enter and e...

AI Technical Summary

Problems solved by technology

However, at present, the determination of the safety distance and combined clearance for live working is mainly based on the conclusions obtained from the simulation tests of typical tower types, and lacks the consideration of environmental factors, because the dielectric constant of air is affected by air temperature, humidity, and air pressure. Affects the determination of live working safety distance and combined gap value

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