Published: 3 December 2009
Category: Q&A
Our Voltimum Experts answer your questions on a daily basis in our Technical Expertise area. This one, concerning earth rod placement for a building, is answered by SELECT:
Question: I have an earth pit to locate on a commercial electrical installation job, which is for a secondary supply to the building concerned. The supply is TT and is to be used as emergency power to the lift in the event of failure of the main supply.
I need to put an earth rod in for the secondary supply. The best position for this is in the basement. Is there any reason why this is not possible?
Answer: BS 7671:2008 does not specify the exact location of the earth rod. You would have to first ensure that you do not damage the foundations of the building.
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