Acceptable means of making a spare live conductor safe - inside external floodlight

[Deleted member 19807]

Re: Acceptable means of making a spare live conductor safe - inside external floodlig

i would disconnect the red going to the light and terminate it in the earth connector and do the same at the light end end, sleve with g/y

 

[Sintra]

Re: Acceptable means of making a spare live conductor safe - inside external floodlig

Why should spare cores be connected as an earth at both ends????

It's common practice for an unused core of a multi core cable to be connected to earth to eliminate any induced voltage.

 

[amberleaf]

Re: Acceptable means of making a spare live conductor safe - inside external floodlig

Sorry Lenny for dropping in like This . Am very Sorry about this “ Warning “

PS. I don’t now where to drop this One ????

Postal Scam:Can you circulate this around especially as Xmas is fast approaching - it h=as been confirmed by Royal Mail. The Trading Standards Office are making pe=ople aware of the following scam:A card is posted through your door from a company called PDS (Parcel Delive=ry Service) suggesting that they were unable to deliver a parcel and that y=ou need to contact them on 0906 6611911 (a Premium rate number).DO NOT call this number, as this is a mail scam originating from Belize.If you call the number and you start to hear a recorded message you will al=ready have been billed =A3315 for the phone call.If you do receive a card with these details, then please contact Royal Mail= Fraud on 020 7239 6655.For more information, see the Crime Stoppers website:http://www.crimestoppers-uk.org/crime-prevention/helping-prevent-crime/scam=s/postal-delivery-scam

The Good Lady works for the Government . I’ll leave at that . Amber Sorry about this . Thank you Lenny .

 

[mechelec]

Re: Acceptable means of making a spare live conductor safe - inside external floodlig

It's common practice for an unused core of a multi core cable to be connected to earth to eliminate any induced voltage.

I seem to remember reading about unused conductors being earthed in one of the niceic snags and solutions books

 

[Guest123]

Re: Acceptable means of making a spare live conductor safe - inside external floodlig

I've tried to analyse the wiring in the JB and would guess that it looks like this:

View attachment 2904

If this is the case, I don't understand how Lenny's answer applies?

I would guess hifly's point about spare conductors being earthed at both ends is so that in the event of a fault at one end of the conductor, the other end doesn't become live.

What I assume the OP has is a L&N supply to a switch by the back door and then a 3C & CPC up to the outside light. The red is connected into the common of the switch with the perm live supply of the T&E, the yellow will be the switch wire in L1 with black & blue in a connector.

Hence my suggestion of disconnecting the red core.

 

[tlangdon12]

Re: Acceptable means of making a spare live conductor safe - inside external floodlig

Thanks for clarifying. I'll look at the switch as well then.

 

[gamblor6]

Re: Acceptable means of making a spare live conductor safe - inside external floodlig

all spare cores should be connected to earth, disconnect at the switch, dont have a spare perm live at the light.

 

[Sparky Ninja]

Re: Acceptable means of making a spare live conductor safe - inside external floodlig

Some NICEIC interpretation for you...

 

[mechelec]

Re: Acceptable means of making a spare live conductor safe - inside external floodlig

Some NICEIC interpretation for you...

Thats the one I read

 

[malcolmsanford]

Re: Acceptable means of making a spare live conductor safe - inside external floodlig

Just playing the devil advocate here, not sure how the NICEIC interprets that connecting loose cable to earth comes under regulation 131.2.1.

Providing as in the NICEIC example and those un terminated cables are in an enclosure, and therefore the enclosure is afording basic protection, why can't the cables be

1) Terminated in a connector block or wago block.
2) Doubled over at the ends and then taped over with insulation tape.

I have yet seen at a DB an isolated circuit either permanent or temporary with all 3 conductors connected into the earting bar. Just an argument