DIY Doctor

Main navigation

Conduit for sinking electrical socket into wall

Postby Graham53 » Sat Sep 10, 2016 5:56 pm

Can I use plastic conduit for an electrical socket and sink it in the wall and plaster over it
Many thanks
Rank: Labourer
Progress to next rank:
Posts: 1
Joined: Sat Sep 10, 2016 5:48 pm


Simply Build It

Postby kbrownie » Sun Sep 11, 2016 6:32 pm

You could, but there are certain regulations that must be complied to when burying cables in walls.
They must be inside the permitted safe zones, if buried less than 50mm from either surface of the wall, this includes the reverse side of wall. Any newly buried cable (less than 50mm in wall) and any new socket, regardless of depth of cable, will require 30ma RCD protection.
Then there is also building regulation part A to consider, regarding the depth that a wall can be chased into. This involves factoring in the depth/skin of the wall, if a solid wall and whether by doing a chase at unreasonable depth it will trouble the structure of the wall. Those factors are on a vertical chase no greater than 1/3rd of the skin/leaf depth of wall and on the horizontal, no greater than 1/6th of the skin/leaf.
Also by placing a cable or multi-cables in containment such as conduit, you then have to apply a de-rating factor to the safe current carrying capacity of the cable.
Rank: Project Manager
Posts: 1995
Joined: Mon Mar 05, 2007 9:36 pm

Postby diydoctor6 » Thu Oct 19, 2017 12:37 pm

You can find a full explanation of the safe zones for cables here: ... -zones.htm

The diagrams should show you where the safe zones for cables are and what you are allowed.
Rank: Ganger
Progress to next rank:
Posts: 145
Joined: Thu Feb 05, 2009 1:54 pm

Display posts from previous
Sort by
Order by

  • DIY How to Project Guides
  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!

  • Related Topics