Lighting Earth
- Thread starter Gees
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Hi, no it does not have to follow the supply cable or go back to the CU, you can pack up an earth from another lighting point. If you have a continuous cpc in the supply cable is it not possible to extend it?
Regards,
DS
Regards,
DS
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.... however, be aware of the fact that, if you were to run a separate earth to the light fitting (from wherever) as a single-conductor cable, unless that cable were 'mechanically protected' (which it wouldn't be) it would have to have a minimum size of 4mm².
Kind Regards, John
Kind Regards, John
I was under the impression the earth cable was supposed to be in close proximity to the original wiring as possible - but you've got to use common sense and run it how ever possible I suppose.
I would recommend using 4 mm2 green and yellow single core - anything smaller will require additional protection, and you won't want to waste time with all that.
I take it none of your lighting circuit has an effective earth?
Nice light, can see why you want to keep it.
EDIT; John's beaten me to it!
I would recommend using 4 mm2 green and yellow single core - anything smaller will require additional protection, and you won't want to waste time with all that.
I take it none of your lighting circuit has an effective earth?
Nice light, can see why you want to keep it.
EDIT; John's beaten me to it!
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Duplicate post.
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Chances are it won't be. No doubt it will have to be run in cupboards, under floors, in loft space, etc, etc.
Argument for argument's sakeHow do you know it's not protected ?
I'm not a betting man, but if I were ... !!! Furthermore, if one were crazy enough to be contemplating installing a 2.5mm² single CPC within mechanical protection back to the CU, it would almost certainly be simpler, easier and cheaper to just replace the cable with T+E!
Kind Regards, John
It may be possible to extend the present cable BUT its buried in the glue that holds the ceiling rose up... If I pick up an earth from another fitting will that have to be 4mm also ( It is not feasable to replace the cables without MAJOR floorboard removal etc )
I intend routing the earth cable under the bedroom floor then fishing for it where the boards have been lifted before, I have some long thin fibreglass poles from a "pop up" tent that should do the job.
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4 mm2 single core earth is best, in my opinion.
You talk about getting the earth from another fitting.
The question is, if this fitting doesn't have an earth, why should another light have an effective earth?
Check what you connect to REALLY is an earth.
Are you saying the light fitting in question has an earth wire that wasn't connected, but is a functioning earth?
Maybe if you are lifting some floor boards you may be able to obtain some slack on the light cable somehow. You may as well try and get the earth from the nearest point possible...
You talk about getting the earth from another fitting.
The question is, if this fitting doesn't have an earth, why should another light have an effective earth?
Check what you connect to REALLY is an earth.
Are you saying the light fitting in question has an earth wire that wasn't connected, but is a functioning earth?
Maybe if you are lifting some floor boards you may be able to obtain some slack on the light cable somehow. You may as well try and get the earth from the nearest point possible...
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