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IP rating of SELV lighting in bathroom zone 2

Farmboy

Regarding figure 8.1 in the OSG (page 94), for the ‘zone 2’ row, the ‘current using equipment’ column appears to make no distinction between ELV/SELV and LV, so:

  • should (12v) SELV downlights (in a ceiling) also be minimum IPX4?
  • what do you think about (12v) MR16 lamps and their connectors being in zone 2 and accessible to a person using the bath (albeit if they stood on the bath edge to reach across to touch them)?

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    mapj1: 
     

    Not just the OSG, but the wiring regs say the same as well. IP something 4 please-- i.e. protected against splashing, not that unreasonable.

    701 .512.2
    External Influences
    Installed electrical equipment shall have at least the following degrees of protection:
     (i) In zone 0: IPX7
     (ii) In zones I and 2 : IPX4.
    This requirement does not apply to shaver supply units complying with BS EN 61558-2-5 installed in zone 2 and located where direct spray from showers is unlikely.
    Electrical equipment exposed to water jets, e.g. for cleaning purposes, shall have a degree of protection of at least IPX5.

    Mike

    Re IP rating, I asked because advice given on a forum elsewhere stated that they should be minimum IPX4 ‘or’ be SELV, and because section 1.7 of GN 7 appears to refer to 230v only requiring minimum IPX4, suggesting SELV does not, neither of which seems to concur with section 701.

    And what about the push-fit connections being relatively easily accessible to a person using the bath?

     

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  • 0

    mapj1: 
     

    Not just the OSG, but the wiring regs say the same as well. IP something 4 please-- i.e. protected against splashing, not that unreasonable.

    701 .512.2
    External Influences
    Installed electrical equipment shall have at least the following degrees of protection:
     (i) In zone 0: IPX7
     (ii) In zones I and 2 : IPX4.
    This requirement does not apply to shaver supply units complying with BS EN 61558-2-5 installed in zone 2 and located where direct spray from showers is unlikely.
    Electrical equipment exposed to water jets, e.g. for cleaning purposes, shall have a degree of protection of at least IPX5.

    Mike

    Re IP rating, I asked because advice given on a forum elsewhere stated that they should be minimum IPX4 ‘or’ be SELV, and because section 1.7 of GN 7 appears to refer to 230v only requiring minimum IPX4, suggesting SELV does not, neither of which seems to concur with section 701.

    And what about the push-fit connections being relatively easily accessible to a person using the bath?

     

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