I have accidently discovered that my window screen on my front porch is conducting a\c voltage at 2.5 constantly.the screen is 4 feet by 10 feet long and is not grounded.i put a grounding rod aprox 4 feet deep and checked it again the voltage seems to be constant 24 hours a day.How can this be?Is it the metallugy of the zinc coated wire mesh causing this or is it resonance from the power lines near by? approx 100 feet away.hope to hear some opinions
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