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Lighting question

Former Community Member
Former Community Member
So today I wanted to add another switch in a house.


The extra switch would need to now include an intermediate due to it being already 2wY.


now when I took the switches off, one switch the common has just a single sheath core, the L1 and L2 are a 2 core cable L1 being Red and L2 being black.

This is exactly the same in the other switch.


I thought this must mean there is a JB somewhere ? In the light fitting there is 3 T&E, and 1 single cable which goes into the lamp live! 


I just can’t understand how this could be wired? 


Any ideas?
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  • Former Community Member
    0 Former Community Member

    Sparkingchip:

    Is this switching on the stairs?


    When was the house built?


    Is all the lighting circuit wired in insulated singles?


    Are there CPC earth wires at every fitting?


    Do the metal back boxes have nylon fixing lugs to retain the switch plate fixing screws?


    Is there more than one lighting circuit, if do are they RCD protected by more than one RCD?


    Andy Betteridge 



    The switch is for the downstairs hall, currently switched from kitchen and bottom of stairs they want an additional switch at the front door.


    Building is old, don’t know how old.


    No, the house is wired in Red and black twin and earth , the insulated single is only the one fitting I have seen it at.


    The cpc is continuous throughout the property.


    The property is dual rcd with lighting on the same side

     




     

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  • Former Community Member
    0 Former Community Member

    Sparkingchip:

    Is this switching on the stairs?


    When was the house built?


    Is all the lighting circuit wired in insulated singles?


    Are there CPC earth wires at every fitting?


    Do the metal back boxes have nylon fixing lugs to retain the switch plate fixing screws?


    Is there more than one lighting circuit, if do are they RCD protected by more than one RCD?


    Andy Betteridge 



    The switch is for the downstairs hall, currently switched from kitchen and bottom of stairs they want an additional switch at the front door.


    Building is old, don’t know how old.


    No, the house is wired in Red and black twin and earth , the insulated single is only the one fitting I have seen it at.


    The cpc is continuous throughout the property.


    The property is dual rcd with lighting on the same side

     




     

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