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On Sun, 21 May 2006 23:48:59 -0500, "AG4QC"
wrote: I am having a metal roof put on the house and shop. The installer said it isn't required to be grounded. The city inspector said the same thing. Is that really true? I'm thinking of running a #8 from the roof to my common ground. Does that make sense? Hi Joe, It is arguable that the entire roof would even be evenly conducting, as installed. As conductivity is not a primary concern, the installer is not motivated to insure that a #8 wire attached to one panel would be felt by any other with any degree of confidence. Further, even if all panels exhibited continuity today, this is not to say they would tomorrow unless some care was taken to insure tight interconnections. It is not unheard of here in this group to find Hams taking that care and bonding all panels. The sense of it is to reduce the chance of developing spurs due to RF currents meeting corroded joints (although, no one has ever reported this as a problem, only anticipated it). 73's Richard Clark, KB7QHC |
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