There are some scenarios where lightening would power the sockets in the building. Is this also as a result of a faulty earthing wire?
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There are some scenarios where lightening would power the sockets in the building. Is this also as a result of a faulty earthing wire?
You'd need a lightening arrestor to combat that of lightning. A lighting arrestor needs an earth rod. Some do them separately, other use a central earth system.
But with a good earth system, the whole surge goes directly to the earth. The earth is large enough to take any surge.