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Unusual Neutral Tail into Consumer Unit

Discuss Unusual Neutral Tail into Consumer Unit in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

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vwes59

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Hi,
Ignoring the appauling conductor terminations which I found, in the background of the photo you can see a really odd neutral tail terminated into the main switch.

I've never seen this before, has anyone else, and if so what is it ? Oh I should add this is at a flat, so the tails are presumably coming from an central electrical cabinet. Flats were built in 2008.

It's part of an EICR, and I'm not even sure how to code it. Going to send it to Napit too, see what they think.[ElectriciansForums.net] Unusual Neutral Tail into Consumer Unit
 
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Common in the UK as well. Used by DNOs for TN-S supplies, and its closely related cousin, concentric, is used for TNC-S supplies.
I've regularly used it for distribution to sub boards as well, but only where installation conditions don't require RCD protection.
 
I cant believe how short the stripped ends are. wow!!
 
vwes59 said:
Hi,
Ignoring the appauling conductor terminations which I found, in the background of the photo you can see a really odd neutral tail terminated into the main switch.

I've never seen this before, has anyone else, and if so what is it ? Oh I should add this is at a flat, so the tails are presumably coming from an central electrical cabinet. Flats were built in 2008.

It's part of an EICR, and I'm not even sure how to code it. Going to send it to Napit too, see what they think.View attachment 110835
Click to expand...
I’ve seen this before where the installer hadn’t enough 25csa tail, so Connected multi singles to achieve the required result.

Very poor practice as, I’d always recommend sleeved Ferrules.
 
Penguin said:
I’ve seen this before where the installer hadn’t enough 25csa tail, so Connected multi singles to achieve the required result.

Very poor practice as, I’d always recommend sleeved Ferrules.
Click to expand...

What sort of ferrule would you recommend for the multiple cores of a split concentric cable?
 
Widely available in the UK.
It's not armoured, but it's extremely unlikely that a metallic object could penetrate it and make contact with the live conductor without shorting it to the neutral or earth .
The 'foil' is plastic, not metallic.
 
brianmoooore said:
Widely available in the UK.
It's not armoured, but it's extremely unlikely that a metallic object could penetrate it and make contact with the live conductor without shorting it to the neutral or earth .
The 'foil' is plastic, not metallic.
Click to expand...
Thanks for the reply. Can you please give me an example of where you’d consider using it. ???
 

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