Might be a silly question this but is there a standard convention
concerning the routing of wires in a house? I would like info
specifically on light switches; so if I am looking at a light switch
in my lounge, would the wires go straight up, straight down or what?
Are the upstairs switches different? My house has a concrete floor so
the wiring cannot go under the floorboards - don't know if that makes
a difference or not.
The reason I ask is that I need to do some drilling and although I
will use a cable detector first, I would like to avoid any obvious
| Might be a silly question this but is there a standard convention
| concerning the routing of wires in a house?
Yes. But don't rely on it :-)
| I would like info specifically on light switches; so if I am looking
| at a light switch in my lounge, would the wires go straight up,
| straight down or what?
Wires may be run
horizontal or vertical from an accessory
within 150 mm of the top (but not the bottom) of a wall
within 150 mm of the angle formed by two adjoining walls
Cables may be run diagonally but must then be protected eg being in conduit
or having an earthed metal sheath eg mineral insulated cable.
Can anyone tell me the reasoning for this? I can understand no
diagonals unless shielded, but is it just so people can make an
educated guess about where the wires are?
And also, why not in the bottom 150mm? Is it to protect against
flooding?? If so, I would have though you would be in enough trouble
anyway if the water got even close to there and the cables were run
under the floorboards!!
On 14 Jul 2003 12:16:33 -0700, firstname.lastname@example.org (Andy) wrote:
The convention, for what it is worth, is straight up or straight down.
Except where the electrician has been inventive.
Downstairs light and socket fittings are invariably dropped from above
in my experience - but that doesn't mean they should be in every case.
Upstairs is pretty much the same game plan.
But use that metal detector to make sure!
Do you need a handyman service? Check out our
web site at http://www.handymac.co.uk
email@example.com (Andy) wrote in
I would like info
Yes, the wires will go straight up, (0r possibly down if the floor's not
concrete, check how they leave the back box) and so should all fittings; I
believe some short horizontal runs are allowed for spurs etc, but I don't
know the regs.
Try not to be a silly billy like me when fitting wall lights and nearly
drill through the cables because I somehow forgot - it was a daft place to
put a mounting hole anyhow!
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