CCA and CCS cables

Stephen · 2015-11-09T08:41:17+00:00

Hello, I must admit that until I read here, I never knew these existed or what they meant (copper coated aluminium, copper coated steel). I made the mistake of buying some cable from cpc, either not seeing or not understanding the three tiny letters at the end of the description. Is there ever a time when using CCA or CCS is as good as or better than using solid copper. I ask because I have found out after the event, that my bell wire for my doorbell is CC something. I am looking to buy some telephone cable to run a socket upstairs and Tool station sell two varieties; you've guess it: one is CCA and the other is CCS. Perhaps I'm just being a copper snob but I'd like my cables to be copper through and through. Is there a reason for this? Is it a coincidence that these cables are both small strand sizes and are not copper? Thanks, Stephen.

CCA and CCS cables

Nov 09, 2015 23 Replies

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John Jackson 10 years ago

Your direct experience wasn't relevant to what was being discussed.

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tabbypurr 10 years ago

Surely within limits it makes no difference. I agree about IDCs, mixing sizes in one is not smart.

1mm^2 has 44 milliohms per metre per pair, so 0.5mm^2: 88mohm/m, 10m = 0.88 ohms, 0.2mm^2: 220mohm/m, 10m = 2.2 ohms. For telecomms I wouldn't expect it to make a difference. A kilometre of it would.

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Dave Liquorice 10 years ago

Less than 10m 0.2mm^2 CCS really screwed up the ADSL. No noticeable change in the POTS for the < 10 minutes it was in circuit.

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tabbypurr 10 years ago

I presume it's misbehaviour at rf that causes that, I can't see the extra 1.32 ohms being the problem.

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