What are the requirements for the installation of grounding wire?

(1) The connection of the grounding device shall be reliable, and the grounding wire shall be the whole or welded The connection between the grounding body and the grounding main line shall be provided with a disconnection point for measuring the grounding resistance, which is connected by screw (2) The grounding wire shall be welded by lap welding, with the lap length; the offset steel shall be twice of the width, with three leading edges for welding; the round steel tower shall be welded on two sides with the length of six times of the diameter The welding seam shall be straight and free of slag inclusion and bubble The welding part shall be coated with asphalt for corrosion protection after cleaning the welding skin (3) In the place of unconditional welding, bolt connection can be considered, but the interface area must be ensured; the bolt shall be provided with anti loose washer and reliable anti rust measures (4) When the grounding wire is connected with the electrical equipment, the bolt crimping shall be used Each electrical equipment shall be connected with the grounding main line separately It is strictly prohibited to connect several equipment requiring grounding in series on one grounding line.