Extending Ring Main Advice

Largemoo · Posted: Mon Jan 16, 2006 8:22 pm Post Subject: Extending Ring Main Advice

Hi, I need to extend a ring main to put a couple of new sockets in. The problem I have is that the only place for the new cables to be situated is behind the skirting board - However I already have central heating pipes behind the skirting board (concrete floor).

Can the 2.5mm cables be situated next to a central heating pipe that obviously gets very hot? how close can they get? Is there such thing as heat resistant cable?

Any advice welcome.

ban-all-sheds · Posted: Mon Jan 16, 2006 8:34 pm Post Subject: Re: Extending Ring Main Advice

You can't put the cables behind the skirting board anyway...

http://www.niceic.org.uk/downloads/C5-43.pdf

http://www.niceic.org.uk/downloads/concealedcables.pdf

http://www.iee.org/Publish/WireRegs/WiringMatters/Documents/Issue14/2004_14_spring_wiring_matters_cables_concealed_in_thin_walls_or_partitions.pdf

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ebee · Posted: Mon Jan 16, 2006 10:07 pm Post Subject:

Ban
You can't put the cables behind the skirting board anyway

??

If a cable is run in joists under a floor and then up to a point then it almost always invariably runs behind a skirting surely.

This is not what you meant is it?

REegards,
EBEE

ban-all-sheds · Posted: Tue Jan 17, 2006 2:37 am Post Subject:

In the situation you describe the cables run vertically to the sockets - this is OK.

Largemoo wants to run them horizontally behind the skirting - this is not OK.

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I mustn't warn people that the "experts" on the plumbing forum can't be trusted to tell the truth.

plugwash · Posted: Tue Jan 17, 2006 2:50 am Post Subject:

bare copper sheathed MICC would certainly be up to the heat and has an earthed metal layer so avoiding the cable routes problem. but it needs to be stripped with a special tool and glanded off with a special pot. Some sparkies tell me its hard, others reckon its easier than SWA. I have no personal experiance to comment.

Can't you just chase horizontally from one socket and vertically from the next meeting up to form a dog leg. that way you stay within permitted routes and away from the hot pipes so no special cable needed.