Dave Plowman (News) wrote:
In article ,
Blair wrote:
Thanks to all who replied. Two mentioned chocblocks for joining wires
and one said joining wires should be carried out with a proper crimping
tool and covered with heat shrink material. Is there a connecting block
which lies between the two which I can use/

Think you've missed the point. You can only use a connector block of any
type if it is accessible afterwards,

correct

and plastering it into the wall makes
it inaccessible.

yes

If you wish to use a connector block then simply put a
blank cover over the box where the socket was - or leave the existing
socket there and extend the ring. And as has been pointed out, unprotected
cable plastered into a wall must either be more than 25mm below

No - the depth should be over 50mm 'from any surface' or enclosed in
earthed metal conduit (trunking or ducting) or installed horizonrtally
or vertically within 150mm of the angle formed by 2 walls or run
horizontally or vertically to an accessory or consumer unit.

see IEE Onsite Guide (p 53 in blue cover edition)

[Note the Guide leaves the issue of ceilings unclear - the
illustration in the IEE Guide shows a 150mm junction on a wall
immediately below ceiling as being a permitted zone, implying that
'wall' in the rule (7.3.2) includes ceilings. OTOH it is generally
accepted SFAIUI that cable can be laid anywhere over & resting on a
ceiling]

HTH