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Supplementary bonding

ff4dd4e3be3fd92a2860545df50ddca9-huge-5418b436-fc4e-47b3-a594-4fea60cb12cd.jpgI see this a lot on sites where they’ve got an armoured cable with an earthing ring/banjo connecting the armour to an extraneous conductive part. Should there also be main bonding run as well? Common thing I see is cable tray being supplementary bonded of a local isolator usually 6mm or 10mm?
Parents
  • So I suppose metalwork bolted to the floor Ie uni strut isn’t going to have a low enough impedance to earth m. But if we was attaching a flylead from a local swa is this supplementary bonding and is it the correct way of doing it?
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  • So I suppose metalwork bolted to the floor Ie uni strut isn’t going to have a low enough impedance to earth m. But if we was attaching a flylead from a local swa is this supplementary bonding and is it the correct way of doing it?
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