Running electric cable in concrete floor
 

I am approaching the end of refurbishing my daughters house. Given the
choice I would have sorted the kitchen first, however it is my daughters
house and she wanted the kitchen left to last.
Now I am approaching the time to run the elect-trickery into the
kitchen. The distribution box is in the hall way which has a hatch into
the hollow floor which extends up to the kitchen where it is concrete. I
thought that I would run the cables up to this then cut channels into
the concrete and run the cabling in trunking bedded in this, the
concrete will be eventually tiled over. Is this feasible and any tips
please?

Running electric cable in concrete floor
 

On Sat, 17 Feb 2007 14:45:05 +0000, Broadback
mused:

I am approaching the end of refurbishing my daughters house. Given the
choice I would have sorted the kitchen first, however it is my daughters
house and she wanted the kitchen left to last.
Now I am approaching the time to run the elect-trickery into the
kitchen. The distribution box is in the hall way which has a hatch into
the hollow floor which extends up to the kitchen where it is concrete. I
thought that I would run the cables up to this then cut channels into
the concrete and run the cabling in trunking bedded in this, the
concrete will be eventually tiled over. Is this feasible and any tips
please?

If I were running cables in a concrete floor I would prefer to run
them in galv tube, or PVC at the very least. Galv would be safest but
either way it's not a major chore to replace the cables if required
without it being a major headache as long as the tube is installed
with this in mind and also with enough space to get the cables through
(e.g. 1x20mm for a ring across a floor round 2 90 degree bends is not
going to be great).
--
Regards,
Stuart.

Running electric cable in concrete floor
 

Broadback wrote:
I am approaching the end of refurbishing my daughters house. Given the
choice I would have sorted the kitchen first, however it is my daughters
house and she wanted the kitchen left to last.
Now I am approaching the time to run the elect-trickery into the
kitchen. The distribution box is in the hall way which has a hatch into
the hollow floor which extends up to the kitchen where it is concrete. I
thought that I would run the cables up to this then cut channels into
the concrete and run the cabling in trunking bedded in this, the
concrete will be eventually tiled over. Is this feasible and any tips
please?

Personally I just case them in the concrete..keeps em cool ;-)

Running electric cable in concrete floor
 

The Natural Philosopher wrote:

Personally I just case them in the concrete..keeps em cool ;-)

Twin and earth cable is unsuitable for embedding directly in concrete.
This is clearly stated in the OSG and in GN1.

--
Andy

Running electric cable in concrete floor
 

Andy Wade wrote:
The Natural Philosopher wrote:

Personally I just case them in the concrete..keeps em cool ;-)

Twin and earth cable is unsuitable for embedding directly in concrete.
This is clearly stated in the OSG and in GN1.


Well slip a bit of flexi conduit over them if you feel precious.

Ive seen it done plenty of times..the sort that can happen is the
insulation fails in 30 years time..and you have to chisel it out again..

Running electric cable in concrete floor
 

"Broadback" wrote in message
...
I am approaching the end of refurbishing my daughters house. Given the
choice I would have sorted the kitchen first, however it is my daughters
house and she wanted the kitchen left to last.
Now I am approaching the time to run the elect-trickery into the kitchen.
The distribution box is in the hall way which has a hatch into the hollow
floor which extends up to the kitchen where it is concrete. I thought that
I would run the cables up to this then cut channels into the concrete and
run the cabling in trunking bedded in this, the concrete will be
eventually tiled over. Is this feasible and any tips please

Years ago could get prewired flat section PVC trunking for just this
purpose. IIRC the cable was single insulated and loosely in its own section
of the trunking. It was used for wiring in blocks of flats
Never used it myself so not sure how the sections fitted together

Don't know if it is still available

Tony

Running electric cable in concrete floor
 

On Sat, 17 Feb 2007 14:45:05 +0000 someone who may be Broadback
wrote this:-

Now I am approaching the time to run the elect-trickery into the
kitchen. The distribution box is in the hall way which has a hatch into
the hollow floor which extends up to the kitchen where it is concrete. I
thought that I would run the cables up to this then cut channels into
the concrete and run the cabling in trunking bedded in this, the
concrete will be eventually tiled over. Is this feasible and any tips
please?

Install conduit in the floor, with easy bends where they bend up to
the walls. Put in draw strings (thin nylon rope is best) and draw in
singles which are terminated at the first accessory.

Run horizontally in your preferred wiring system between accessories
along the walls, so that you minimise the number of conduit runs
under the floor.

Beware of Mr Prescott if the house is in England or Wales.


--
David Hansen, Edinburgh
I will *always* explain revoked encryption keys, unless RIP prevents me
http://www.opsi.gov.uk/acts/acts2000/00023--e.htm#54

Running electric cable in concrete floor
 

On 2007-02-18 09:33:15 +0000, David Hansen
said:

On Sat, 17 Feb 2007 14:45:05 +0000 someone who may be Broadback
wrote this:-

Now I am approaching the time to run the elect-trickery into the
kitchen. The distribution box is in the hall way which has a hatch into
the hollow floor which extends up to the kitchen where it is concrete. I
thought that I would run the cables up to this then cut channels into
the concrete and run the cabling in trunking bedded in this, the
concrete will be eventually tiled over. Is this feasible and any tips
please?

Install conduit in the floor, with easy bends where they bend up to
the walls. Put in draw strings (thin nylon rope is best) and draw in
singles which are terminated at the first accessory.

Run horizontally in your preferred wiring system between accessories
along the walls, so that you minimise the number of conduit runs
under the floor.

Beware of Mr Prescott if the house is in England or Wales.

Should be OK if the foundations are substantial enough....

Running electric cable in concrete floor
 

Andy Hall wrote:
On 2007-02-18 09:33:15 +0000, David Hansen
said:

On Sat, 17 Feb 2007 14:45:05 +0000 someone who may be Broadback
wrote this:-

Now I am approaching the time to run the elect-trickery into the
kitchen. The distribution box is in the hall way which has a hatch into
the hollow floor which extends up to the kitchen where it is concrete. I
thought that I would run the cables up to this then cut channels into
the concrete and run the cabling in trunking bedded in this, the
concrete will be eventually tiled over. Is this feasible and any tips
please?

Install conduit in the floor, with easy bends where they bend up to
the walls. Put in draw strings (thin nylon rope is best) and draw in
singles which are terminated at the first accessory.

Run horizontally in your preferred wiring system between accessories
along the walls, so that you minimise the number of conduit runs
under the floor.

Beware of Mr Prescott if the house is in England or Wales.

Should be OK if the foundations are substantial enough....


Thanks folk.