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Lights Supplied by 30 Amp Ring Final. B.S. 3036 Fuse.

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HellOOOoooo All,


I came across a strange one today. I went to change a faulty touch dimmer switch for an ordinary light switch. I discovered that the two lights controlled by the switch did not originate at the lighting circuit, but from a 30 Amp wire fused ring final. The supply was connected to an old metal double socket box below the light switch, in an added conservatory, with a blank plate over it. I can not add a fused connection unit as the box is a double socket box. The blank plate is covered by a small easily removed panel convector heater. I was considering installing an inline fuse holder in the double socket box for the lighting circuit. The lamps are low energy types so overloading is very unlikely, but faults may occur.


Thoughts please.


Z.
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  • 0
    AJJewsbury:

    I think most are of the opinion that having two fuses creates two further circuits - so with a common N that's technically a contravention of BS 7671. I agree that in this particular circumstance the actual danger is minimal - b


    Majorities eh? There have been many powerful majorities that were right in their own eyes over thousands of years of human history. But were they always right?


    Ignas Phillip Semmelweis comes to mind as being in a minority. He was bitterly opposed by the majority of his colleagues until Joseph Lister proved that his health claims were in fact correct.


    Z.


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  • 0
    AJJewsbury:

    I think most are of the opinion that having two fuses creates two further circuits - so with a common N that's technically a contravention of BS 7671. I agree that in this particular circumstance the actual danger is minimal - b


    Majorities eh? There have been many powerful majorities that were right in their own eyes over thousands of years of human history. But were they always right?


    Ignas Phillip Semmelweis comes to mind as being in a minority. He was bitterly opposed by the majority of his colleagues until Joseph Lister proved that his health claims were in fact correct.


    Z.


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