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Discuss 12v lighting in a bathroom in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

I

ian hall

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Have been asked to fit recessed lights in a bathroom. The mains will be in a joint box in the loft so would you worry about fitting an rcd?

Thanks

Ian
 
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brs73

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Arms
yes.all new circuits in a bathroom have gotta be on a 30ma rcd.
 
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T

Tiger

  • Thread Starter Thread Starter
  • #3
I thought a selv circuit were aloud in the bathroom and it would not be possible to touch 240v, as it's not a re-wire your not touching existing circuits.
 
I

ian hall

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  • #4
Just seems mad to rcd 12v lights as the mains "risk" is actually outside the room.

Ian
 
L

L&B Electrics

  • Thread Starter Thread Starter
  • #5
don't forget the lights need to be ip rated
 
I

ian hall

  • Thread Starter Thread Starter
  • #6
I normally use those shower ones with the glass cover when a light is near a shower,althogh the new fire rated downlights have that rubber seal between the lamp and the fitting and the lamps have a glass cover,so you would have to be pretty keen to get a shock!!!
 
D

DanBrown

  • Thread Starter Thread Starter
  • #7
Back to the question!, does it need an RCD??
For me i'd say not with the mains above ceiling and out of the way and being 12v lights, but what does everyone else think on this?
 
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jeremy

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Mentor
Arms
12vSELV in a special or other location does not need any special consideration providing the source of the mains power is outside of the room. Iwould normally recommend 230v fittings to avoid transformers and that would rquire consideration but seperate extra low voltage; lick the fingers and let the tingly times roll!!
 
I

ian hall

  • Thread Starter Thread Starter
  • #9
If they were GU10 fittings then an rcd would be required. Low voltage lightd still give a better light in my opinion but thats another story.

Ian
 
S

Spudnik

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  • #10
I think that ANY equipment installed in a bathroom must be RCD protected regardless of whether its 12 or 230V.

Page 69 OSG.
 

jeremy

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Mentor
Arms
Why does selv need rcd protection if there is no shock risk ? I'm not being argumentative but feel I'm missing something.
 
W

WarrenG

  • Thread Starter Thread Starter
  • #12
I think that ANY equipment installed in a bathroom must be RCD protected regardless of whether its 12 or 230V.

Page 69 OSG.
I think I would agree.

Hager have produced a document on their new 17th edition boards that also qoutes the use of RCD protection in bathrooms and SELV (attached)
 
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jeremy

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Mentor
Arms
osg relates to 230v circuits. wheras i would use IP fittings to protect against corrosion if they were selv if the transformer is in the ceiling then its outside the zone. Its not a new circuit; I don't see the necessity.
 
A

assured elec

  • Thread Starter Thread Starter
  • #14
All circuit in a bathroom are now required to be on an rcd , but you are not putting a new circuit in the bathroom are you ? if they have a light already , you are just changing the light for a different light , all be it you are putting in spots . so as long as you put in the right spots with the right ip rating you should be fine( what do you lads think??????)
..
or you could just run the sw live + n through and RCD fuse spare in the loft before your 1st spot..

Its a bit of a funny situation , like today , i went to a small job , bathroom light not working , 2D fitting , turned out it was a faulty pull switch which was also in the bathroom, fix the pull 5 mins , so do i now need to put the circuit on an RCD as i was last to work on it ??? I never
 
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S

Spudnik

  • Thread Starter Thread Starter
  • #15
osg relates to 230v circuits. wheras i would use IP fittings to protect against corrosion if they were selv if the transformer is in the ceiling then its outside the zone. Its not a new circuit; I don't see the necessity.
The OSG does not specify circuit voltage.

Quote:

"all the circuits of the location must be protected by 30mA RCD's."



If the circuit is being repaired or switch replaced then no, but as new lighting is being installed, then the way i see it is yes.
 
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