Jeez, guys, just read 522-06-06. All of it.
Help - accidental drll into ring mains
- Thread starter philut
- Start date
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(text is on page 2 of http://www.niceic.org.uk/downloads/concealedcables.pdf
para (iv) is the most common application I think.
there are also some pretty pictures
http://www.niceic.org.uk/approved/quest3.html
para (iv) is the most common application I think.
there are also some pretty pictures
http://www.niceic.org.uk/approved/quest3.html
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Ooh I like that one.Spark123 said:
Do these regs apply to existing work, as I wanted to drop a cable down a false wall for a door access system I am installing at home when I noticed the mains cable dropping down from the 1st floor to a light switch downstairs is a piece of twin and earth that is unprotected and just dangling down a very thin internal wall.
Its a old house, do regs not apply to old houses, or is that normal?
Also, should I forget the drop at that point (its about 10 to 15 cm away, but could be less unless I drop a pipe or conduit down to run the cable down, which carries 12v to operate a low current solenoid.) until the cable gets redone according to regs (if needbe) or should I just drop the cable?
Looked upstairs under the floor boards and their appears to be a couple of bell wire type cables ran along (wrapped around / touching) the twin and earth, no idea what those cables are for, but shouldnt any low voltage wiring be seperated more than that? I hope to god it is low voltage wiring, not some mains stuff using that cable...
Its a old house, do regs not apply to old houses, or is that normal?
Also, should I forget the drop at that point (its about 10 to 15 cm away, but could be less unless I drop a pipe or conduit down to run the cable down, which carries 12v to operate a low current solenoid.) until the cable gets redone according to regs (if needbe) or should I just drop the cable?
Looked upstairs under the floor boards and their appears to be a couple of bell wire type cables ran along (wrapped around / touching) the twin and earth, no idea what those cables are for, but shouldnt any low voltage wiring be seperated more than that? I hope to god it is low voltage wiring, not some mains stuff using that cable...
kensplace said:
If that cable is directly above the lightswitch, then it's allowed.
The regs are not retrospective - your house should have been wired to the edition in force when it was wired. But I have no idea when the safe wiring zones were defined.
DESL said:
There is problem with this method. The damage to the cable can include carbon deposits for an inch or more either side of the point where the drill went into the cable. It is therefor advisable to remove an inch of cable either side of the burn marks.
Using a double box / face plate and two 3 way blocks joined by a new piece of cable 2 or 3 inches long is better.
A cooker cable protected by a 30 amp wire fuse was drilled into and visible signs extended 2 inches either side of the hole.
Bernard
Sharnbrook
DIYnot Local
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