[Talk about Haichuan Safety] Can rebar be used as a grounding body? ?
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Why can't rebar be used as a grounding body? answer: There are two main reasons. First, it is difficult for rebar to be in close contact with soil, and the grounding resistance is unstable. ； Second, there will be tip charge accumulation and discharge at the edge of the thread, which is detrimental to the uniform distribution of ground current. The thread on the surface of the rebar is equivalent to adding an inductance, which is detrimental to the rapid discharge of high-frequency lightning current.
Steel bars above 12mm can be overlapped with a length 12 times the diameter of the steel bar, double-sided welding
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