- Reaction score
- 10,215
The arguments here seem to be all based on personal preference but regards old trunking installs yes seen a few knacked ones but the OP has given enough insight and explained the building is new, the trunking is a new install too and thus will have been sized with thought of the content including submains supply, there is nothing wrong with using said trunking then as the earth, why spend money when its not needed if OP were putting a price in to win the job such a cost for the extra earth cable could be the difference between winning and losing the contract.
We should be advicing the OP that it is a suitable recognised way of earthing with maybe a personel pref' comment after if you so wish, the install been new will be subject to EICR periodically and will be down to the owners to ensure this happens, this will highlight any issues with damaged trunking etc as it would with any other system chosen so as long as the install is worked out and fitted correctly i see no reason against the use of the trunking as the earth, but i stress it comes down to personal habits in fitting seperate earth but wouldn't be deemed bad practice to not do so.
We should be advicing the OP that it is a suitable recognised way of earthing with maybe a personel pref' comment after if you so wish, the install been new will be subject to EICR periodically and will be down to the owners to ensure this happens, this will highlight any issues with damaged trunking etc as it would with any other system chosen so as long as the install is worked out and fitted correctly i see no reason against the use of the trunking as the earth, but i stress it comes down to personal habits in fitting seperate earth but wouldn't be deemed bad practice to not do so.