What are the standards for the use of galvanized steel angles and flat steel for grounding?
The top of the grounding body from the ground 0.5 ~ 0.8m, in order to avoid thawing soil, soil resistivity or steel angle as the root number of the ground around the body and decide, generally not less than two, each spacing is 3 ~ 5m
(1) grounding wire is generally made of 40mm * 4mm galvanized flat steel.(2) galvanized steel or angle steel for earthing body. The diameter of the steel pipe is 50mm, the wall thickness of the pipe is not less than 3.5mm, and the length is 2 to 3m. Angle iron shall be 50mm * 50mm * 5mm.
The distance of the grounding body from the building is over 1.5m, and the distance from the grounding rod of the independent lightning conductor is greater than 3m.(5) the connection of grounding wire and earthing body shall be done by lap welding.
