Hi im installing a extractor fan in a shower cubical i need a IPX4 rating fan
splash proof
Can anyone tell me the difference between IPX4 and IPX44
Thank you
It will either be IPX4 in which the first degree of protection (ingress by objects) does not matter, denoted by the X, or IP24, IP44, IP45 etc. - not IPX44.So i can use a IPX4 or a IPX44 in the shower in zone 1
NoIs it true that they must be ELV?
BRB is the only one to go by. Not all authors are good.All the books I have say ELV but the wiring diagrams in the WIKI show mains voltage, and when you look in the catalogues what you see mostly is Class 2 LV.
As long as designed for the situation. You read correctly - fixed current-using equipment (no switchgear etc.) think of electric showers .When I look in the Big Red Book 701.55 seems to say LV "ventilation equipment" is OK in Zone 1 but not Zone 0.
think of electric showers .
I couldn't agree more. However, it would be extrordinarily difficult (probably nigh on impossible) to create a set of explicit regulations that reflected common sense in all/most situations, and equally problematical to have regulations which allowed a lot of discretion - since neither practitioners nor inspectors could be relied upon to apply discretion sensibly. Having said that, some regulations (in many/most fields) do appear to be just plain daft, and there's little justification for that.I think this goes to highlight some of the absurdities of the current "regime" in this country.
Some people will get very upset about a bathroom light fitting which is a couple of inches inside a zone on the ceiling and not suitably rated, or practically have a fit about the idea of fitting a regular socket outlet in the bathroom, even though somebody would have to be doing something pretty stupid for it to be a problem.
But stick a flimsy plastic box with 240V in it actually inside the shower cubicle, and that's just fine......
Even better - try talking to someone who lives in a conservation area about the interesting challenges
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