I'm shortly to start wiring a new bungalow. I've done plenty of electrical work before, but not an entire building. For the power ringmains, should I run the cable in the loft, dropping down and back up to each socket, or go from socket to socket horizontally around the walls? This would mean drilling through the 4"x2"wooden framing uprights and would use much less cable but would make a future rewire more difficult. Is there a preferred method? Thanks for any replies.

Will the cables be run in the loftor wall insulation?

I was going to run them on the woodwork in the loft, or if horizontally around the walls, on top of the 100mm slab insulation behind the plasterboard. The house is a little unusual in construction as it's a traditional stone farm building with an internal timber frame which supports the roof, hence it's substantial.

Loft and drop cables down to each point is my preferred method i must admit, makes more logical sense, bit more cable but a better job in my oppinion.

Nick

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If it isnt broke dont bloody touch it until it bloody well is and if it is broke then make drawing of the connections before you remove the broken one and replace with a new one LoL

OK, many thanks.

Please be aware of table 4d5 reference method 101# when using 2.5 or even 4mm for ring final circuits. Good old 17th

20A rings anyone?

I take it you mean to keep cables clear of insulation? I was going to run three separate ring mains, kitchen, living room and bedrooms. I already installed the consumer unit, which the Elec. Co. were happy with when they ran the supply to it, and juice is on. Are there minimum distances apart for cable clips? Would it be gilding the lily to run boards down the length of the loft, under the trusses, to carry the cables? I'm a bit of a perfectionist and like things to be tidy and labelled for future reference, unlike my present house, wired by the previous owner, a sparky..!! No implications should be drawn from that!

How are you getting the part P stuff sorted?

My neighbour is a sparky and he is going to check my stuff and do the cert.

though according to your profile location your north of the border so Part P doesnt apply (?)
still goes through building control though possibly (?)

Oh yes didnt pick up on that but the scottish have a requirment too. If your niegbour is a spark why not ask his opinion as he can see the building and its requirments afterall he's the one putting his name to it!!!!

James

A design and install in a new build - blank sheet of paper - why are you installing ring finals?



They connected the supply with no proof that the installation was safe?

Naughty.



Yes, and it's a bit worrying that you're tackling a task like this without having the publications you need, e.g. in this case GN1.



They've got to go somewhere. Why not use proper cable tray?

And time for another "why would you" Q: You're doing a new build and you've chosen to use one of those disgusting trussed roofs??



You'll like this idea then - where you have cables running at right angles through floor joists, instead of having them sagging between each one, fix short pieces of galvanised trunking between the joists, supported on mini-joist hangers...

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I'm sorry - I can't come in to work today, the voices are telling me to stay at home and clean the guns.

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