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Old 01-02-2010, 04:41 AM   #1
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Hi Can anybody help please, I am fitting a new light fitting which is switched from a single switch, but when I turn the light on, it comes on ok, but when I switch of at the switch it blows the fuse, the light fitting has 3 terminals, Live, Neutral, Earth. Can anyone explain how it should be wired so it doesn't blow the fuse, I have tried several options but keeps blowing fuse. thanks. Derek

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Old 01-02-2010, 05:50 AM   #2
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Hi Can anybody help please, I am fitting a new light fitting which is switched from a single switch, but when I turn the light on, it comes on ok, but when I switch of at the switch it blows the fuse, the light fitting has 3 terminals, Live, Neutral, Earth. Can anyone explain how it should be wired so it doesn't blow the fuse, I have tried several options but keeps blowing fuse. thanks. Derek

Did you just replace an existing light fixture?

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Old 01-02-2010, 05:56 AM   #3
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John no its a new fitting, and i have come off the nearest power socket with a plug with a 5amp fuse, and the light comes on ok but when i switch off from the new light switch it blows the fuse. Derek
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Old 01-02-2010, 06:00 AM   #4
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John no its a new fitting, and i have come off the nearest power socket with a plug with a 5amp fuse, and the light comes on ok but when i switch off from the new light switch it blows the fuse. Derek
What's your location? UK?

Is there a way to post pictures of the wiring? Especially the switch?
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Old 01-02-2010, 06:06 AM   #5
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You don't say where you are, but from your description, I am guessing GB. It is pretty hard to get anything wrong assuming you follow the color codes. In US, black is live(hot-brass screw), white is neutral(silver screw), green or bare is earth(ground-green screw). If it works when you turn it on, but not when you turn it off, I would suspect the switch.
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Old 01-02-2010, 06:19 AM   #6
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Yes I am in the UK. ATTACHED ARE PICS.
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electrical wiring-p1024265.jpg   electrical wiring-p1024266.jpg   electrical wiring-p1024267.jpg  
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Old 01-02-2010, 06:25 AM   #7
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Well, I think that 2nd picture shows the problem.


Did you install a cable from the existing socket to the light, and then a cable down to the switch?
I see that there is a brown and blue conductor connected together in 2 places at the light. Can you describe exactly where each conductor comes from? (As in, brown from the socket, which is connected to blue from the ?)
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Old 01-02-2010, 06:36 AM   #8
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yES I CONNECTED NEW WIRE FROM SOCKET TO LIGHT, WIRED AS, TERMINAL MARKED L, BROWN FROM SOCKET, BLUE FROM SWITCH, TERMINAL MARKED N, BROWN FROM SWITCH, BLUE FROM SOCKET. HAVE TRIED DIFFERANT COMBINATIONS, BUT ALL WITH SAME RESULT
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Old 01-02-2010, 06:40 AM   #9
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yES I CONNECTED NEW WIRE FROM SOCKET TO LIGHT, WIRED AS, TERMINAL MARKED L, BROWN FROM SOCKET, BLUE FROM SWITCH, TERMINAL MARKED N, BROWN FROM SWITCH, BLUE FROM SOCKET. HAVE TRIED DIFFERANT COMBINATIONS, BUT ALL WITH SAME RESULT
The Blue from the switch/brown from socket should be connected together, but not connected to anything from the light. The brown from the switch should be connected to the brown from the light, and the blue from the socket connected to the blue from the light.

This will work, and would be legal here in the US, but I have no idea if it meets code in the UK.
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Old 01-02-2010, 06:54 AM   #10
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Problem solved john, thank you very much for your help. Happy new year, derek
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Old 01-02-2010, 06:58 AM   #11
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Problem solved john, thank you very much for your help. Happy new year, derek
Good to hear!

However, check back here, hopefully Marc or someone else who is familiar with UK wiring will post to let us know that this is OK.

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