Two separate grounding pad inside a building.
Two separate grounding pad inside a building.
(OP)
We have 2 grounding pad at the basement of a new high rise building. The first is intended for indoor substation grounding while the second is intended for the lightning arrester grounding thru downconductor or downwire. The two pads are not connected to each other. This is the electrical designer’s idea. My question is, should the two grounding pads remain independent from each other. In other words there are two separate grounding system for the building? I hope you can follow what I’m trying to say. Would appreciate your response and possibly offer some advise or guidance. Thanks
Encon5






RE: Two separate grounding pad inside a building.
Sometimes there is a perception that separating the lightning protection grounding system from the normal system grounding is a safer installation. But because of the enormous energy contained in a lightning strike, this is a bad assumption.
RE: Two separate grounding pad inside a building.
I'm not sure, but it's some understanding, two diffrent grounding system in one building is some mistake.
I'm not designer, but from time to time I see in several place two grounding systems but in several points are connected (it's some "redandancy").
Regards.
Slava
RE: Two separate grounding pad inside a building.
RE: Two separate grounding pad inside a building.