I have a question regarding extending cables too. If you extend a cable behind a wall or more importantly by creating a channel in a solid wall, do you have to use armoured cable or a metal tube to run the cable in before plastering over it?
I intended just to use some plastic tubing to run the cable in for the solid wall, and just the bare cable behind the plasterboard wall.
Joined: 27 Aug 2003 Posts: 21990 Location: London, United Kingdom Thanked: 78 times
Posted: Mon Jul 19, 2004 3:39 pm Post Subject:
There are two issues here, really.
If you are extending a cable, then there are the questions about how you should effect the join, and secondly regarding the routing of the cable, if it isn't in a permitted zone OR more than 50mm deep, then it must have mechanical protection, such as armour or earthed metal conduit - plastic tube won't hack it
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My plan is to run a new length of cable in for the whole length - I can put the metal tube in and earth it by connecting to the existing metal tube (which I expect is there!!!...and earthed.... I'll check).
Should not be a problem with zones - its just a socket in the livingroom, not close to water, windows or anything I could imagine being a problem.
One thing I noticed though with other stuff - existing cables behind plasterboard walls (not solid walls, just filled with some glass fibre insulation) and in floorspace has no armour - they just 'dangle' behind the platerboard or lie between the roof & floorboards between ground and first floor - I guess these should be armoured too then?
Joined: 03 Jan 2003 Posts: 23346 Location: Sussex, United Kingdom Thanked: 5 times
Posted: Tue Jul 20, 2004 9:33 am Post Subject:
diy_ian wrote:
My plan is to run a new length of cable in for the whole length - I can put the metal tube in and earth it by connecting to the existing metal tube (which I expect is there!!!...and earthed.... I'll check).
the tube to which you refer is conduit, probably 200mm, it also has a thread on it which is how it "connects"
you camn probably hire a set of di (to cut thread) but unless you know what you are doing i would get an electrician in, in this case
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Joined: 27 Aug 2003 Posts: 21990 Location: London, United Kingdom Thanked: 78 times
Posted: Thu Jul 22, 2004 12:02 pm Post Subject:
diy_ian wrote:
Thanks ban-all-sheds!
My plan is to run a new length of cable in for the whole length - I can put the metal tube in and earth it by connecting to the existing metal tube (which I expect is there!!!...and earthed.... I'll check).
Don't bank on it - use of conduit is unusual.
Quote:
Should not be a problem with zones - its just a socket in the livingroom, not close to water, windows or anything I could imagine being a problem.
I meant the zones for running buried cables, not bathroom zones - check the link in the For Reference section.
Quote:
One thing I noticed though with other stuff - existing cables behind plasterboard walls (not solid walls, just filled with some glass fibre insulation) and in floorspace has no armour - they just 'dangle' behind the platerboard or lie between the roof & floorboards between ground and first floor - I guess these should be armoured too then?
Depends where they are - check the link in the For Reference section.
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