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UK diy (uk.d-i-y) For the discussion of all topics related to diy (do-it-yourself) in the UK. All levels of experience and proficency are welcome to join in to ask questions or offer solutions. |
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Non-copper wire in ring main?
Hello.
While adding some sockets to my wife's study, I've found sections of non-copper cable in my ring main. It's an old house, though the vast majority of the wiring is less than a few decades old. The cable has multiple strands, perhaps about 7, and is made by Pirelli. I couldn't see a type code on it. It seems quite chunky, but I'm surprised to see that it is not made from copper, but is probably steel. Outwardly, it looks like regular grey T&E, but is more amenable to bending. Is this cable normal? I suppose my concern is that this particular ring is quite long, and I understand that steel has a higher resistance than copper. The ring covers rooms containing mostly lower-powered items, but does include the washing machine. Ewan |
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