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Wiring a new metal light fitting

Discussion in 'Electrics UK' started by enemjay, 27 Oct 2021.

  1. enemjay

    enemjay

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    Hi all


    I have removed standard plastic light fitting and found 2 wires in the ceiling. One is l, n, e and one is switch live, l, e.


    How do I connect to the new light that has terminals for l, n, e?
    Keep the live 'loop' wires separate?

    Shall I buy a junction box of some sort?

    Thanks
     
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  3. conny

    conny

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    Live feed and switched live joined together into a small connector block housed inside the new light fitting. The return leg of the switched live to L in the fitting and N from the live feed to N in the fitting. Obviously the earths all go together to the E terminal.
     
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  4. enemjay

    enemjay

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    Can you help me out with which is the return leg of the switched live?
    The blue with a brown sleeve?
     
  5. 333rocky333

    333rocky333

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    That is the usual convention
     
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  7. 333rocky333

    333rocky333

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    Whilst we and the OP understood, that description leaves a bit to be desired :)
     
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  8. enemjay

    enemjay

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    Having followed this, can you help with why it is tripping the RCD when switched on?
     
  9. conny

    conny

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    "I have removed standard plastic light fitting and found 2 wires in the ceiling. One is l, n, e and one is switch live, l, e."

    Do you have two flat T&E cables at your old fitting? If so then the following is the correct method.

    If you have the two browns, (reds), terminated into a separate connector block and one blue, (black), into the L terminal of the fitting and the other blue, (black), into the N terminal of the fitting then the connection is correct and there is another reason for the RCD tripping. You may have a nick in the insulation of one of the wires and it is creating a short somewhere or there could be another reason. There may possibly be something wrong with the new fitting.
     
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  10. Risteard

    Risteard

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    The A Team use twin brown.
     
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