I thought all permanent wiring required a cpc (with the exception of a drop to a double-insulated pendant).
You could use 5-core + 2-core, double the earths, and heatshrink them together., if you only need very short lengths
6-core ≥230V-'rated' flex?
- Thread starter JohnW2
- Start date
I thought all permanent wiring required a cpc (with the exception of a drop to a double-insulated pendant).
You could use 5-core + 2-core, double the earths, and heatshrink them together., if you only need very short lengths
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My understanding is that the requirement is that CPC should be 'run to each point' in a circuit, not that there necessarily has to be a CPC in every cable. Hence, if a 'point in the circuit' (e.g. an accessory) receives a CPC from one cable, then any other cables going to that accessory/whatever do not actually need a CPC.
I could, or I could use two 4-core ones, or other arrangements of 'two cable' approaches. However, even with heat shrink I would not regard that as the neatest of options, and I would also prefer (in the interest of 'balanced currents/fields') to have all the Ls in the same cable bundle as the N - but 'two cables' is, needless to say, an option I considered.
The 'silly' thing is that I only need 5 conductors and, if (as is sometimes the case) a 5-core flex had 'all white' or 'all black' cores, then there would be no problem - since none of them would be G/Y!
Kind Regards, John
John.
I have some 11 + Earth ( 12 x 1.5 mm 600 volt ) I have sent you a private message.
Bernard
I have some 11 + Earth ( 12 x 1.5 mm 600 volt ) I have sent you a private message.
Bernard
Yes, I've just seen your PM, and thanks, that's very kind of you to offer. I'll bear your offer in mind, in case needed - but, as I recently wrote to Rob, I think I'm now 'spoiled for choice' (and ideally would like as physically small cable as I can find).
Kind Regards, John
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One of them has 6 blacks !
Did I dream it or are they phasing out the need for a coc at every point.
They have numbers printed on them along their length.
Not that I'm aware of - but that doesn't prove very much
Has anyone else heard of this?I must say, I would be rather surprised if the requirement were to go away. I'm already a bit surprised that there is seemingly not a requirement for every cable to have a CPC (in case it is severed or penetrated) - but it seems that there is not.
Kind Regards, John
No. I have not heard of it.
Thanks. Yes, it would (albeit 1.5mm² is far more than I need, leading to a bulkier cable that I would ideally have).
However, the problem is that it is only available from RS as 50m reels (the 'per metre' price is just 'indicative', being one-fiftieth of the reel price).
Kind Regards, John
John.
I'll lay a pound to a penny I'll have 0.75 or 0.5mm².
Is it literally a metre you need?
Many thanks. It's probably literally only a metre, certainly less than two, but I'll check!
However, I've just discovered that a friend I will be seeing tomorrow or Monday may have some, so I'm waiting toi hear back from him - but I'll let you know if I 'still have a need'!
Thanks again.
Kind Regards, John
Whats that orange stuff, if there doing traffic light work nearby you may be able to scrounge some.
It’s just SWA. It’s made with an orange jacket instead of black so it can be easily identified in the ground.
https://www.elandcables.com/cables/traffic-signalling-cable
https://www.elandcables.com/cables/traffic-signalling-cable
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