Hi
I am running cable in the upper floors of the house at the minute, i wont be getting them connected and signed off till after the new year so i have no sparky to consult. I have worked for a couple for sparkies in the past but i am a bit rusty on the regs (plus one was a bit of a cowboy and didnt care).
At last count i can only run cables through a wall within 150mm of a corner or horizontal/vertical from a fitting. Is this still correct?
I fitted single 25 mm round conduit behind the plaster board running up to a 35mm knockout (dimable light switch) and again out of the top of it running to the corner of the ceiling (which then follows up to the ridge).
I now want to fit smoke detectors so i can rent the house out in the future.
Can i run the additional wiring for the smoke detector through the same conduit? It will mean running the cable through the same knockout box as the switch to reach the terminal box under the floor, this is what i am unsure of.
I will be rigging the smokes to the light circuit. I have seen it done [passing extra cables through a knockout] but unsure if it conforms to the regs. If it is fine, is the box deep enough for the extra cable to pass through and a dimmer? If not i am going to have problems geeting the cable up there within safe zones.
Also the light circuit will be a 3 way switch, from memory i had planned for 2x 1.5 mm cables to be running from the floor to the switch and 1x 1.5 to be running from the switch to ceiling. Is the conduit big enough to take the additional cable for the smoke detector or will i have to use oversized cables for thermal reasons?
I really want to avoid the sparky being uncomfortable with the way i have done things when it comes to 2nd fitting and signing off, the last thing i want is to be having to change things (i am going to plaster this winter).
Cheers
EDIT: since i cannot lay cables unsupervised/not employed by the sparky signing off i will get a sparky to do that. However, i still want to keep the cost down so will be using my own channels and conduit, so the question still stands. No attempt has actually been made to answer the question yet.
I am running cable in the upper floors of the house at the minute, i wont be getting them connected and signed off till after the new year so i have no sparky to consult. I have worked for a couple for sparkies in the past but i am a bit rusty on the regs (plus one was a bit of a cowboy and didnt care).
At last count i can only run cables through a wall within 150mm of a corner or horizontal/vertical from a fitting. Is this still correct?
I fitted single 25 mm round conduit behind the plaster board running up to a 35mm knockout (dimable light switch) and again out of the top of it running to the corner of the ceiling (which then follows up to the ridge).
I now want to fit smoke detectors so i can rent the house out in the future.
Can i run the additional wiring for the smoke detector through the same conduit? It will mean running the cable through the same knockout box as the switch to reach the terminal box under the floor, this is what i am unsure of.
I will be rigging the smokes to the light circuit. I have seen it done [passing extra cables through a knockout] but unsure if it conforms to the regs. If it is fine, is the box deep enough for the extra cable to pass through and a dimmer? If not i am going to have problems geeting the cable up there within safe zones.
Also the light circuit will be a 3 way switch, from memory i had planned for 2x 1.5 mm cables to be running from the floor to the switch and 1x 1.5 to be running from the switch to ceiling. Is the conduit big enough to take the additional cable for the smoke detector or will i have to use oversized cables for thermal reasons?
I really want to avoid the sparky being uncomfortable with the way i have done things when it comes to 2nd fitting and signing off, the last thing i want is to be having to change things (i am going to plaster this winter).
Cheers
EDIT: since i cannot lay cables unsupervised/not employed by the sparky signing off i will get a sparky to do that. However, i still want to keep the cost down so will be using my own channels and conduit, so the question still stands. No attempt has actually been made to answer the question yet.