Junction box with one wire...

ThePistol · 5 Jan 2013

Hi,

I was inspecting wires in the loft earlier, as there are a number of dead cables that need removing. However, while up there I found a junction box, with only one cable going into it.

The cable runs from the loft through a stud wall, just above the consumer unit.

Obviously I'm assuming it's live as I'm unable to confirm otherwise, but can anyone shed any light on why this may be the case? I believe it's just more laziness from the previous owner, but would welcome any thoughts?

Thanks

EFLImpudence · 5 Jan 2013

It's not really possible to tell from here.

Do you have any test equipment?

ThePistol · 5 Jan 2013

EFLImpudence said:
It's not really possible to tell from here.

Do you have any test equipment?

I've got a multimeter...?

EFLImpudence · 5 Jan 2013

If you are comfortable doing it you could -

Power on so be careful.
Meter on ACV - test for voltage between L&N and L&E. 240V on both if live.

If live - switching off one circuit at a time at the CU will tell which circuit it is on which may indicate where it may come from.

If not live you will still have to be careful as it may be controlled by a switch somewhere.

With power OFF
Meter on Ohms ( Ω )(beep) - test between N&E, N& any pipes nearby, E& pipes, and L& pipes.

If all Open circuit ( 1 ) (no beep or reading) then it is likely not connected to anything.
If it beeps between N&E and both N and E to pipes but not between L&E it will suggest it is still connected somewhere.

ThePistol · 5 Jan 2013

Thanks - I'll give it a go tomorrow!

Johnmelad · 6 Jan 2013

ThePistol said:
Hi,

I was inspecting wires in the loft earlier, as there are a number of dead cables that need removing. However, while up there I found a junction box, with only one cable going into it.

The cable runs from the loft through a stud wall, just above the consumer unit.

Obviously I'm assuming it's live as I'm unable to confirm otherwise, but can anyone shed any light on why this may be the case? I believe it's just more laziness from the previous owner, but would welcome any thoughts?

Thanks

How did you test to ensure they are dead?

PrenticeBoyofDerry · 6 Jan 2013

Johnmelad said:
ThePistol said:

Hi,

I was inspecting wires in the loft earlier, as there are a number of dead cables that need removing.

Click to expand...

How did you test to ensure they are dead?

Likely all been cut or disconnected end to end.

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Junction box with one wire...

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