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Adapt or die - Where is Earth?
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<blockquote data-quote="Uriah" data-source="post: 46817" data-attributes="member: 806"><p>Hi,</p><p>Regards your wiring,does the socket in question have metal pipes entering the wall box comanly called a 4x4 or 2x4 box if the box is galvanised with metal conduits and all metal screws no plastic then it was common practise many years ago to use the conduits as an earth conductor but I am sure this was prior to 1975.after this it was required to use a seperate earth wire to all sockets and metal pipes gutters and sinks,the present regulation requires a insulated earth wire(green)what happens a lot is if you have metal pipes in your ceiling or walls when mods are done then plastic conduit is used and by cutting the metal pipes and then tying in with PVC conduit you break the earth continuity so If I was you I would</p><p>a) check the continuity between the box in question(you can do this with a simple bell tester or multimeter)</p><p>B) if no cotinuity you have to find a way of getting a 2,5mm green wire from the nearest earthed point to your box which can prove quite tricky as most sockets in the walls have the conduits running in the slab.</p><p>c) if lucky and the conduits go into the ceiling you may be able to open a drawin box and get a new wire down the conduit</p><p>otherwise call in a electrician</p><p>Good luck</p></blockquote><p></p>
[QUOTE="Uriah, post: 46817, member: 806"] Hi, Regards your wiring,does the socket in question have metal pipes entering the wall box comanly called a 4x4 or 2x4 box if the box is galvanised with metal conduits and all metal screws no plastic then it was common practise many years ago to use the conduits as an earth conductor but I am sure this was prior to 1975.after this it was required to use a seperate earth wire to all sockets and metal pipes gutters and sinks,the present regulation requires a insulated earth wire(green)what happens a lot is if you have metal pipes in your ceiling or walls when mods are done then plastic conduit is used and by cutting the metal pipes and then tying in with PVC conduit you break the earth continuity so If I was you I would a) check the continuity between the box in question(you can do this with a simple bell tester or multimeter) B) if no cotinuity you have to find a way of getting a 2,5mm green wire from the nearest earthed point to your box which can prove quite tricky as most sockets in the walls have the conduits running in the slab. c) if lucky and the conduits go into the ceiling you may be able to open a drawin box and get a new wire down the conduit otherwise call in a electrician Good luck [/QUOTE]
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Adapt or die - Where is Earth?
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