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Supplementary bonding

MrJack96
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?
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    Hi guys thanks for all your help. My question is that if there are cable fed from a common source (MCC)( and the armour earthed by daisy chaining and connecting to the main earth)out to a local isolator should we then supplementary bond the SWAs at the local isolator together and to the uni strut and cable tray? And if so is it necessary to connect them to the earthing terminal of the isolator as well?
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    Hi guys thanks for all your help. My question is that if there are cable fed from a common source (MCC)( and the armour earthed by daisy chaining and connecting to the main earth)out to a local isolator should we then supplementary bond the SWAs at the local isolator together and to the uni strut and cable tray? And if so is it necessary to connect them to the earthing terminal of the isolator as well?
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