Why are pieces of stones used to cover the ground at electric switchyards instead of just having a concrete floor ?
In: 4541
“Step potential” is the voltage difference between your feet when fault current (or any high ground current) is present, and it can be deadly. To minimize it, the ground surface needs a high resistance cover, i.e., gravel. As others have said, it drains easily, and has minimal point to point contact with the other stones. Concrete, with moisture retention, rebar, and the cost of installation/material, is not practical. financially or from a safety standpoint.
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