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V.O.E.L.C.B.

It dawned on me fully today while working in an old holiday chalet circa 1940s.


The man in the next chalet was trying to use his old Black and Decker 1970s car boot sourced electric drill outside on the grass. He was making a wooden clothes hanger with wood and pegs. A jolly good job too.


I had had a quick look inside his chalet as he needs some new sockets. The  fuse box is an old cream coloured Wylex 6 way unit with fuse wire carriers. There is an old Crabtree V.O.E.L.C.B. installed before the fuse box.


As he worked in the garden drilling wood, it dawned on me that he had zero shock protection as he would if he had a R.C.C.B. installed.


It's strange how a picture speaks a thousand words.


Z.


Parents
  • AJJewsbury:
    it dawned on me that he had zero shock protection

    Why?


    If the drill is class I and correctly earthed and presuming the VoELCB is working, then ADS should occur as normal (and wuth less dependence on a good Zs too).


    If the drill is Class II (which I rather suspect) then he has shock protection by double or reinforced insulation, the ELCB makes no difference.


    It's lacking additional protection perhaps, but that's another matter.


      - Andy.


    Too many assumptions Andy/ The drill, bought from a car boot sale for little money, had a plug that was not correctly wired.


    Z.


Reply
  • AJJewsbury:
    it dawned on me that he had zero shock protection

    Why?


    If the drill is class I and correctly earthed and presuming the VoELCB is working, then ADS should occur as normal (and wuth less dependence on a good Zs too).


    If the drill is Class II (which I rather suspect) then he has shock protection by double or reinforced insulation, the ELCB makes no difference.


    It's lacking additional protection perhaps, but that's another matter.


      - Andy.


    Too many assumptions Andy/ The drill, bought from a car boot sale for little money, had a plug that was not correctly wired.


    Z.


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