Basic insulation exposed in electrical outdoor meter box.

There’s debate about exposed basic insulation in meter cupboards being satisfactory or not? Industry guidance (WRAG) say it’s satisfactory if the door’s in good shape, what’s people views on this ?

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  • An electrical enclosure requiring a tool to open might be the bolted metal cover over a live bus-bar with no additional insulation whatsoever, or not just the outer flap of a consumer unit but the whole front panel.

    I'd argue an open  meter box ought to more like this sort of open enclosure

    (even though it opens with a tool still)

    as it is intended for 'instructed' or 'ordinary' persons to have access.

    Rather than this level of an open enclosure , which of course is still 'the same' as far as the opens with a tool test is concerned.

    but I'd argue should be left to those more 'skilled' or dare I suggest 'competent'  persons who can see the wiring and the bare metal bits and

    don't experience a 'must touch' reflex...


    The two sorts of electrical enclosing that are going on are not really equivalent.

    If you'd be happy with that in a meter box, I dont know, but  I'm not, even if the exposed bus bar tabs were covered

    Really we need a succinct phrase that distinguishes these two far from identical cases,

    Calling both 'electrical enclosure' is not really capturing the difference in risk.
    Mike.

  • I entirely agree with the point that Mike is making, save that 412.2.2.1 refers to an "insulating enclosure".

    Moreover, whilst it appears to be IP2X, I would not want to expose it to the elements, (though I have seen a metal CU outdoors).

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  • I entirely agree with the point that Mike is making, save that 412.2.2.1 refers to an "insulating enclosure".

    Moreover, whilst it appears to be IP2X, I would not want to expose it to the elements, (though I have seen a metal CU outdoors).

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