Just been thinking of a disconnection job I went to last week (not the wet one)..
Customer had a leak in a flat roof in a comercial building that he owns and as he doesn't use that part of the building didn't notice it for ages, however now he's spotted it he wants it sorting.. it's been so wet for so long that there is a mushroom type fungus growing in the wall behind the CU:O
So this part of the building has it's own CU fed by 25mm tails (must be 15 - 20 meters long) in the ceiling and behind the plaster board without and fused protection (direct into henly blocks)... I've now disconnected this so that the contractors don't have to worry about any "Live" cables, but it's going to have to be reconected in the future.
Thinking about connecting this back up, In all honestly I think I'll have to replace the tails for SWA/XPLE so that it can have the RCD at the SUB DB and add a switch fuse at the supply.... RCD at DB end just in case he rents this part of the building out in the future. There is another T&E sub main without a switch fuse, but I'll deal with that later
Customer had a leak in a flat roof in a comercial building that he owns and as he doesn't use that part of the building didn't notice it for ages, however now he's spotted it he wants it sorting.. it's been so wet for so long that there is a mushroom type fungus growing in the wall behind the CU:O
So this part of the building has it's own CU fed by 25mm tails (must be 15 - 20 meters long) in the ceiling and behind the plaster board without and fused protection (direct into henly blocks)... I've now disconnected this so that the contractors don't have to worry about any "Live" cables, but it's going to have to be reconected in the future.
Thinking about connecting this back up, In all honestly I think I'll have to replace the tails for SWA/XPLE so that it can have the RCD at the SUB DB and add a switch fuse at the supply.... RCD at DB end just in case he rents this part of the building out in the future. There is another T&E sub main without a switch fuse, but I'll deal with that later