spotlights in kitchen

[i=p/u]

yo all, i was wondering isit ok to notch joice in kitchen ceiling to fit spotlights, as long as rcd protected. cant work above. as there is a bedroom above do these spots need to be specific kind and do you have to use heat rsistant flex.

when i buy lights with the data sheet say all this .thanks


go on the reds

 

[IQ Electrical]

yo all, i was wondering isit ok to notch joice in kitchen ceiling to fit spotlights, as long as rcd protected. cant work above. as there is a bedroom above do these spots need to be specific kind and do you have to use heat rsistant flex.

when i buy lights with the data sheet say all this .thanks


go on the reds

I hope you mean notching the joist to fit the cable, rather than the light?

When a cable is installed under a floor or above a ceiling, it must be run in such a position that it it is not liable to damage by contact with the floor or ceiling or their fixings.
Unarmoured cable passing through a joist shall be at least 50mm from the top or bottom as appropriate or enclosed in earthed steel conduit.

Alternatively, the cable can be provided with mechanical protection sufficient to prevent penetration of the cable by nails, screws etc.

You do not have to use fire rated fittings in a normal domestic environment as there is only one fire compartment in the whole property.

 

[i=p/u]

thanks iq, yh for cable not a fitting. but wanted to just notch the joice so cable could ly on the plasterboard and with minimal destruction. thought could just use t&e as long as on rcd

 

[telectrix]

you can do that, but should protect the cable with a steel plate. you can buy these ready made from wholesalers. they come with spikes attached so you just have to bang them in after laying the cable. usually used in situations wher you have to notch the top of a joist, but can equally be used under. all you have to do is protect the cable from nails.

 

[i=p/u]

so plate protects them

 

[telectrix]

plate thick enough to stop penetration by nails . needs RCDas well though.

 

[chiplard]

You do not have to use fire rated fittings in a normal domestic environment as there is only one fire compartment in the whole property.

I was always under the impression that an individual room needed to be its own fire compartment.

Was told this by a building inspector but would gladly like to be corrected and point him to the relevant documentation!!! Maybe it is just the LABC that have there own specific rules, I dont know.

 

[SirKit Breaker]

Cut ceiling below joist and about an inch either side, shove a long 10mm auger bit through joist on an angle cos you wont get it square, and if you do it properly it will be at least 50mm from joist bottom face.

IQ i also disagree with you about the fire rated fittings. You must maintain the 30 minute fire rating of the ceiling, and also the accoustic side of things as well. In my humble opinion it is better to fit fire rated anyway just on cost alone. I pay about £5 for these things including the lamps. £49.99 for a set of 10 at electrifix.

Cheers.....Howard

 

[i=p/u]

good info guys for a learner.so next part..

the kitchen im thinking of practicing on isnt that big id say about 7m by 4m would i need just the one junction/wago box and feed all lights from this or would each light need its own??? and throw on a dimmer lol

 

[DurhamSparky]

use metal conduit lids as plates!!! do the job and some times cheaper!!

 

[mart8235]

you can do that, but should protect the cable with a steel plate. you can buy these ready made from wholesalers. they come with spikes attached so you just have to bang them in after laying the cable. usually used in situations wher you have to notch the top of a joist, but can equally be used under. all you have to do is protect the cable from nails.

Never heard of these plates, sound really good. But do they need to be earthed as well?
I prefer to drill though. IQ electrical has pretty much covered how I would install them. I just use a large hole cutter and keep the bits that come out and fix back after for the plasterer to fill back in with.

 

[Johnny-G]

good info guys for a learner.so next part..

the kitchen im thinking of practicing on isnt that big id say about 7m by 4m would i need just the one junction/wago box and feed all lights from this or would each light need its own??? and throw on a dimmer lol

Stick one of these - Click Flow 16 Amp Push-in Connector - before each fitting.

 

[telectrix]

Never heard of these plates, sound really good. But do they need to be earthed as well?
I prefer to drill though. IQ electrical has pretty much covered how I would install them. I just use a large hole cutter and keep the bits that come out and fix back after for the plasterer to fill back in with.

they don't need earthing, because the RCD eliminates that need. the main times they have been used was where , say on the landing of a terraced house, the floor joists were only 3x2, so could not drill 50mm deep. then we would notch the joist and fit steel protectors. ( this was before RCD was needed on cables ,50mm deep.)

 

[i=p/u]

so johnny g is that 2 feeds and switch wire all in 1 connector. do you have start from junction box

 

[i=p/u]

doink ..