I have to rewire my 36ft attached garage, all the cables curently used run along the timber wall plate supporting the roof.
It would make my life easier to run 6" galv cable tray along the wall under the plate spaced off the wall on unistrut or timber blocks. This would allow me to pre wire most of the new before removing the old cabling.
I have 2 x 2.5mm ring mains, 2 lighting circuits, 1 x 6mm t&e and a 6mm swa which should fit easy on a 6" tray.
So to earthing of the tray? Should I just rely on the section coupling bolts and run say 4mm as a bond from tray end to the CU earthing block, or bond with straps of 4mm cable at each joint? Are the copper plate style straps still used to couple lengths of tray?
It would make my life easier to run 6" galv cable tray along the wall under the plate spaced off the wall on unistrut or timber blocks. This would allow me to pre wire most of the new before removing the old cabling.
I have 2 x 2.5mm ring mains, 2 lighting circuits, 1 x 6mm t&e and a 6mm swa which should fit easy on a 6" tray.
So to earthing of the tray? Should I just rely on the section coupling bolts and run say 4mm as a bond from tray end to the CU earthing block, or bond with straps of 4mm cable at each joint? Are the copper plate style straps still used to couple lengths of tray?