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IP65 light fitting in bathroom zone 2?

Farmboy
Electrical equipment in zone 2 in a bathroom must be rated at minimum IPX4 (excluding shaver units...), so, can an IP65 (circular bulkhead style) light fitting be used in zone 2? Mention was made elsewhere that IP ratings are not cumulative, suggesting that e.g IP65 would not be suitable in a minimum IPX4 area. 


F
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    I was always concerned about water  spray hitting a bare hot glass G.L.S. lamp and causing it to shatter, and with the bathroom user perhaps having bare feet that could be nasty. But I have never heard of such a thing happening. Some people fitted a glass "gold fish bowl" type of granny shade over the bulb years ago.


    Z.
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    AJJewsbury:
    IP66 resists strong jets, but this could be done by a "tortuous path" and so not necessarily pass IP67 submersion.

    Other way around surely? We wouldn't expect an IP66 item to pass an IP67 test.



     


    No, it is the right way around, but maybe badly worded because I agree you wouldn't EXPECT IP66 to pass IP67. I was using it as a lead in to the point I was trying to make (not helped by a drink lol) was that IP66 and IP67 can be achieved by different mechanisms, so they have no chance of passing the other test. IP67 isn't necessarily "better" than IP66. The IPx6 jets can force their way through a seal that would pass IP67 immersion.


    I have done a few IPx6 tests and the hose is certainly a big step up from a garden hose and has a bit of liveliness to it. 

     


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    If it says MINIMUM IPX4 then any classification above that is fine.
  • 0
    Phased:

    If it says MINIMUM IPX4 then any classification above that is fine.


    The wording of the reg is subtly (but I think significantly) different - "...have at least the following degrees of protection ... zones 1 and 2: IPX4" - i.e. the minimum is on the requirement rather than the numbering.  As above we can't presume that an IPX7 or IPx8 will also satisfy IPX4 - so IP X4, X5 or X6 would be OK, but IP X7 or X8 might not be.

        - Andy.


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