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![[ElectriciansForums.net] Concentric stranded cable????](https://electricians.s3.eu-west-1.amazonaws.com/data/attachments/42/42024-54323270293b0e247a6f0214eb9d4cbb.jpg "[ElectriciansForums.net] Concentric stranded cable????")
[Has anyone come across this cable before .i havnt it looks like 10 1mm twisted together and the mains earth is 4 2.5mm.i was all set to fail it till my mate said it was consenteric is he right
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- Thread starter davidanthony41
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Discuss Concentric stranded cable???? in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net
[Has anyone come across this cable before .i havnt it looks like 10 1mm twisted together and the mains earth is 4 2.5mm.i was all set to fail it till my mate said it was consenteric is he right
Yes, will be split concentric.
![[ElectriciansForums.net] Concentric stranded cable????](/proxy.php?image=http%3A%2F%2Fwww.batt.co.uk%2Fupload%2Fproducts%2Fimages%2F4175splitconc.gif&hash=e0fd01c7c36ffdf69f1a2d5407dd520d "[ElectriciansForums.net] Concentric stranded cable????")
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It was in a block of flats I could get no access elswhere
T
Toneyz
Is it allowed under BS7671?
Yup, deffo split con cable. You could maybe fail the termination into the MCB clamp, it's usually against manufacturers recommendations having so many wires in it, should really be using a palm lug or similar.
B
Bobster
Split concentric is, concentric is not.
It also does not meet the requirements of negating the need for RCD (additional protection) if is buried in a wall for example.
Yes, it is used a lot powering domestic houses and streetlights
D
davesparks
Yes, but it is not suitable for burying without RCD/mechanical protection etc.
Reply to Concentric stranded cable???? in the Periodic Inspection Reporting & Certification area at ElectriciansForums.net
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