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Old 24-Oct-2010, 7:49 PM   #7
John Candle
Senior Member
Join Date: Jun 2010
Posts: 2,697

Some houses have partial metal roofs , houses other then mobile homes have full or partial metal siding. If a nongrounded metal roof is struck by lightning , the electric lightning is in the metal roof , the electric lightning will leave the metal roof and go where? . Also the metal vent pipes that are sticking up out of the tops metal and nonmetal roofs these are not grounded with a -separate- ground wire.
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