My question is , is there any article in NEC support the following:
all extraneous conductive parts of the building such as metallic water pipes, drain pipes, other services pipes and ducting, metallic conduits and raceways, cable trays and cable Armour are to be connected to nearest earthing terminals by equipotential bonding conductors. cross section of the protective bonding conductor is not to be less half that of the protective conductor connected to respective earthing terminal and min. 4 mm2
please, if there any article in NEC support the above statement, let me know
if not, so i would like ask: is it required to connect any metallic conduits/water pipes which installed above false ceiling to connect to earth terminals?
all extraneous conductive parts of the building such as metallic water pipes, drain pipes, other services pipes and ducting, metallic conduits and raceways, cable trays and cable Armour are to be connected to nearest earthing terminals by equipotential bonding conductors. cross section of the protective bonding conductor is not to be less half that of the protective conductor connected to respective earthing terminal and min. 4 mm2
please, if there any article in NEC support the above statement, let me know
if not, so i would like ask: is it required to connect any metallic conduits/water pipes which installed above false ceiling to connect to earth terminals?