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Metal Class 2 Wall Lights.

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I was testing some chrome wall lights today for earthing. They were not earthed. I could not tell initially if they were Class 1 or 2. I took one off its stirrup wall bracket and had a look behind the base plate. A label inside confirmed that it was a Class 2 light fitting.

But, the choc blocks floating about in the metal circular base, and the metal wall bracket could theoretically liven up the fitting if a strand of conductor was left by the installer, and it touched the metal parts. This home has no R.C.D. protection at all.

There must be many such wall lights about.

Z.

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    AJJewsbury: 
     

    the only way that I could imagine a Class II device was chromed plastic.

    Quite a few steel framed appliances are class II - I've got an an anglepoise lamp and a stainless steel cooker hood that both are. As long as there's reliable double or reinforced insulation between the live conductors and the metalwork it should be fine.

        - Andy.

    The wall lights have no double insulation or reinforced insulation in the circular base. These lights are exposed conductive parts containing live single insulated wires using a normal nylon choc block, as found not even covered by electrical insulation tape.

    Why do we earth steel conduit containing single insulated wires? Or steel trunking and other metal enclosures with the same single insulated wires? This situation is similar.

    I will condemn this installation because of the requirements of 411.3.1.1 and 411.3.4. It is dangerous.

    Z.

Reply
  • 0

    AJJewsbury: 
     

    the only way that I could imagine a Class II device was chromed plastic.

    Quite a few steel framed appliances are class II - I've got an an anglepoise lamp and a stainless steel cooker hood that both are. As long as there's reliable double or reinforced insulation between the live conductors and the metalwork it should be fine.

        - Andy.

    The wall lights have no double insulation or reinforced insulation in the circular base. These lights are exposed conductive parts containing live single insulated wires using a normal nylon choc block, as found not even covered by electrical insulation tape.

    Why do we earth steel conduit containing single insulated wires? Or steel trunking and other metal enclosures with the same single insulated wires? This situation is similar.

    I will condemn this installation because of the requirements of 411.3.1.1 and 411.3.4. It is dangerous.

    Z.

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