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Electricity cable
prelude1980 - 14/11/09 at 03:19 PM

Just wondered if any one has suggestions on how to get a cable from the fuse box into the loft? The house is 6 years old with plasterboard walls, i then want to run the cable from the gutterline to my garage roof as i have no power in the garage.

Any suggestions welcome


philw - 14/11/09 at 04:15 PM

Why don't you, drill a hole in the side of the house running upwards, then run the cable(armoured preferably) via a U/G feed to the garage, thats how i'm doing mine.


franky - 14/11/09 at 05:12 PM

As above or bury it.


prelude1980 - 14/11/09 at 05:53 PM

i don't want the u/g feed as i have to dig up a public walk way to get to the garage plus the garage floor. The other problem is the fusebox is at the front of the house and garage at the back at the bottom of the garden


BenB - 14/11/09 at 06:32 PM

Part P might rear it's ugly head here especially if you're taking it out to the bottom of the garden IE you'll need to protect the cable, the garage will need it's own MCB etc etc etc....


Brook_lands - 14/11/09 at 06:39 PM

And probably illegal for you to do it. Just another one of the 3000+ new laws since 1997.


iank - 14/11/09 at 06:43 PM

Are you suggesting running an overhead wire over a public walkway?
I'd get professional advice, as that sounds like a potential liability nightmare.


franky - 14/11/09 at 07:08 PM

It'll be fine as long as its secured properly and at the correct height.


iank - 14/11/09 at 07:54 PM

quote:
Originally posted by franky
It'll be fine as long as its secured properly and at the correct height.


Therefore the requirement for professional advice.

Even if it's to the letter of the regs if some hypothetical window-cleaner bangs his ladders into it you want someone else's professional insurance between you and any claim. (IMO)


prelude1980 - 14/11/09 at 08:47 PM

i know about the part P thing,

I was planning to run it on the spare fuse at 50/60a on an overhead cable that is at gutter height to my garage the whole way as my garage has a peaked roof or whatever you call it, the public walkway is 900mm wide for access to the rear of the other houses. Then have a mcb for lights and socket in the garage


franky - 14/11/09 at 08:47 PM

fair point. he should use the correct cable too.


Liam - 14/11/09 at 09:57 PM

I'd be asking on the electrical section of Diynot for some decent advice from the pros. What on earth do you want 50/60A supply out there for??

[Edited on 14/11/09 by Liam]


prelude1980 - 14/11/09 at 10:10 PM

quote:
Originally posted by Liam
I'd be asking on the electrical section of Diynot for some decent advice from the pros. What on earth do you want 50/60A supply out there for??

[Edited on 14/11/09 by Liam]


good point it sounds rather high should be 40A, i only want to run lights and a socket cable of running a welder


JoelP - 14/11/09 at 10:26 PM

20A would do that! Call it 32 to cover upgrades!

Bear in mind your mcb rating is to protect your cable, with a 60a breaker you'd need 16mm at least.

Id say 6mm on a 20A breaker, this covers you for a good distance before voltage drop becomes a problem. Id also suggest avoiding embedding it in plaster in the house so you dont need to rcd it in the house (an annoying distance to walk if it trips), and put an rcd mini unit in the garage. Cable should be in some conduit really, bit of mechanical and UV protection.


daniel mason - 15/11/09 at 01:40 PM

is it on an external wall? if so,take some floor boards up.knock a hole in wall then drop a heavy wire down the cavity and pull it out of the hole. tape you cable on and pull it up cavity!


prelude1980 - 15/11/09 at 03:04 PM

it's an internal wall, i believe there is a brick wall behind the plaster board leaving about a 20mm gap