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IP2X inside enclosures

wallywombat
Generally these days everything live(*) inside an enclosure like a CU (accessible only with a tool yada yada) seems to be IP2X - e.g. recessed terminal screws on MCBs, busbar covers, etc.


Is there anything in BS 7671 which enforces this? Or product standards like BS EN 61439? Or is it just down to good practice by the manufacturers?


(*), well, line anyway.
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  • 0
    Three examples of when I have found a live neutral bar in a consumer unit.
    • The neutral conductor failed on the DNO overhead cables supplying two houses, the one I was in was TT earthed so the earthing bar stayed at zero volts.

    • The guy who installed the consumer unit reversed the tails.

    • The PV installer fitted a four pole switch to isolate both the mains a PV and mis-wired it.


    There have been others, as said in the original post the line parts are shielded, not the live parts as the neutral carries current so are live conductors.
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  • 0
    Three examples of when I have found a live neutral bar in a consumer unit.
    • The neutral conductor failed on the DNO overhead cables supplying two houses, the one I was in was TT earthed so the earthing bar stayed at zero volts.

    • The guy who installed the consumer unit reversed the tails.

    • The PV installer fitted a four pole switch to isolate both the mains a PV and mis-wired it.


    There have been others, as said in the original post the line parts are shielded, not the live parts as the neutral carries current so are live conductors.
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