I 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?
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?
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?