FIELD: power industry.
SUBSTANCE: invention relates to methods of laying, wiring, operating, repairing or dismantling power cables and power lines, namely, to protective grounding of overhead wire lines (options). The method of protective grounding of an overhead power transmission line according to option No. 1 includes the grounding of an overhead power transmission line electrically connected by portable grounding with its own grounding contour of the support or an artificial ground electrode mechanically submerged into the ground to a depth of at least one meter, while the overhead power line is additionally grounded, electrically connecting with the help of grounding wires with existing natural grounding using clamps. According to the method of protective grounding of the overhead power transmission line according to option No. 2, they are additionally grounded, electrically connected by means of grounding wires to stationary grounding loops using clamps.
EFFECT: increasing the level of electrical safety of personnel, excluding cases of electrical injury to employees.
12 cl, 2 dwg
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Authors
Dates
2021-05-14—Published
2020-10-05—Filed