Zone 0 and 1 bathroom lights

[nimh]

I have a bathroom where the ceiling is 2.2m tall and an en suite shower room where the ceiling is 2m tall.

As I understand it the bathroom light must be Zone 1 and the en suite shower room light must be Zone 0.

I am struggling to find anything suitable. Is there a reasonably priced domed type light available for these locations?

Thanks

 

[flameport]

The lights will most likely be installed in zone 1, or possibly 2. (Zone 0 is the area inside the bath itself).
You won't find lights designed for zones, as that isn't how light fittings or anything else is rated. Even when instructions supplied with lights attempt to indicate which zones are appropriate, they often get it wrong.

You need lights rated to IPX4 or above. (possibly IPX5 for the shower)

X=any number, and 4 can be 4 or above.
Therefore IP44, IP45, IP55 and so on would all be suitable.

 

[nimh]

Thanks for the very quick reply.

As I understood it if you were in the shower any light within 0.6m from the sides and 2.25 from the floor were in Zone0 and if the light was in the next Zone to Zone 0 then it would be Zone 1.

Have I misread how the zones are calculated?

 

[ban-all-sheds]

Have I misread how the zones are calculated?

Yes.

//www.diynot.com/wiki/electrics:bathroom-zones

 

[securespark]

If it's a bath, the inside of the tub is Zone 0, Zone 1 is that area within the bounds of the bathtub, but above Zone 0 up to 2.25m.

See the diagram:

//www.diynot.com/wiki/electrics:speclcn:bathroom_zones

Just to clarify, it's the same for a shower:

http://www.tlc-direct.co.uk/Technical/DataSheets/Firstlight/Zones.pdf

 

[nimh]

If it's a bath, the inside of the tub is Zone 0, Zone 1 is that area within the bounds of the bathtub, but above Zone 0 up to 2.25m.

So to get this right. A ceiling light 2.2m high but not within the confines of the bath but within 0.6m from the bath is Zone 2

and a ceiling light 2m tall and not within the confines of a shower but within 0.6m of the shower is also Zone 2.

 

[RMS]

So to get this right. A ceiling light 2.2m high but not within the confines of the bath but within 0.6m from the bath is Zone 2

Yes

and a ceiling light 2m tall and not within the confines of a shower but within 0.6m of the shower is also Zone 2.

Yes

 

[vibrobullit407]

So to get this right. A ceiling light 2.2m high but not within the confines of the bath but within 0.6m from the bath is Zone 2

Correct

and a ceiling light 2m tall and not within the confines of a shower but within 0.6m of the shower is also Zone 2.

Correct

 

[vibrobullit407]

Snap!

Must type faster!

 

[RMS]

Snap!

Must type faster!

Don't beat yourself up, at least it was your own answer

 

[Daryll]

Sorry to resurrect a fairly old post, but I have a related question....

We're having a 2 story extension built, upper floor will be master bedroom with en-suite (shower, basin and WC). It will have a vaulted ceiling, with the dividing wall between bedroom and en-suite going full height.

I'm planning on having downlights in both bedroom and en-suite as high as I can get them, which in the en-suite means they'll be over 2.25m high.

So... does that mean, as its outside a zone, it can be a normal IP20 downlight in the en-suite..??

... or are there other advantages to having IP65 downlights...??

TIA

Daryll.

 

[Taylortwocities]

Naughty to hijack an old topic, but you'll be limiting the number of viewers to those who responded to the original, but your choice.

So, your question.

You will have real problems with downlights in a vaulted ceiling. Building Control will insists on lots of (Kingspan type) insulation stuffed in that ceiling to get the correct thermal figure, and they will not let you make it like swiss cheese so all the heat leaks out.
Your arcitect may be able to design a "warm ceiling" that gets around this wee issue.

Secondly, IP20 downlights may be cheaper, but they must be of a sealed type to stop the steam from the room being drawn into the roof void, where it will condense and rot your roof timbers.
Building Regulations Part C

 

[Daryll]

Thanks Taylor... yes, I've mentioned to the architect that we want a horizontal section boarded in across the apex of the ceiling, so we can mount downlights without affecting the insulation.

Good point about the steam, looks like IP65 in the en-suite then...

Daryll.

 

[Taylortwocities]

You can put IP44 fittings there, but they need to be Part C complaint.