In response to am I an electrician, could I kindly ask I don’t get flack please.
But I will be honest and say no I’m not, HOWEVER, I am doing this supervised by a registered and qualified electrician who will be testing it and signing it off, and as such he will be specifying the cable thickness and route of it and I will before the end of the year be studying an electrical course so I can get qualified.
Thank you for the responses.
I will try to be clearer,
It’s a bungalow, it has no consumer unit, supply cable and meter is in a garage which is attached to the side of the bungalow.
All it has is a very old MEM switch fuse unit which covers entire house, no individually fused circuits.
Other side of the wall is a bedroom, so can’t drill through into the house and run cables up inside wall and presently the cables from the switch fuse unit run inside the cavity into the loft.
Due to this issue of cables in cavity, and no consumer unit, and also... practicality of it being in garage if it trips in middle of night and person who will be living there needing a walking stick to assist them with walking, I feel the best solution is to move the consumer unit inside the house, and install it on a fused SWA sub main to get around the DNO meter tail restriction.
I will speak to the electrician in regards to the design of that submain, whether he’s happy for that single cable to go through cavity into loft or if he wants it taken to exterior of garage and into loft via soffits which would eliminate cable in cavity... this would probably be my preference but will see what he says. It has loose fill cavity insulation, the fluffy stuff they blow into the cavity.
As the location is already near to the soffits, cable may only be about 18” inside cavity. As outside wall is adjoining garage and top part shielded by soffits it shouldn’t get much dampness.
Then once in the house it’s a question of best location for it, I did ask the electrician but ultimately it comes down to me where it’s located as long as it meets regs so he didn’t have much advice on best location in terms of practicality so thought I would ask on here as it’s a wider audience.
Not too worried about crimping of cables as property is being rewired, I’m going to chase out all the boxes and walls, I also want to use galvanised conduit up the walls rather than capping for better protection and cable replaceability in future so will he installing that, then he’s going to come down and inspect it all, and then discuss the cabling with me... and once he’s done that I will install the cabling... and he will come back, connect everything up, test and sign it off.
So just a matter of if airing cupboard is suitable due to space restrictions when you have tank etc in there or best just inside the house by front door.
There is a small alcove
Entrance at the bottom, airing cupboard at the top.
Thanks again for the replies so far, appreciated.