The use of structural metal as a grounding electrode is an issue that has been revised during several recent Code cycles. The 2011 NEC has once again revisited the rule explaining when a structural ...
A HUNDRED years ago, when electricity was usually generated by the use of frictional or Wimshurst machines and detected by gold leaf electroscopes, it was well known that an electric charge on a ...
This is the second in a three-part series. Part 1 is archived under Tech Tips at radioworld.com. Eliminating parallel ground paths and providing a single, low-impedance path to ground for lightning ...
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