Is this 6mm or 4mm cable?

[HappyHippyDad]

[SUP][/SUP]Hello again...

I have just bought 50m's of twin and earth (6242yh) from e-bay.

It was advertised as 4mm[SUP]2[/SUP] but the sticker on the front is a little worn and is not readable apart from what looks abit like 4mm[SUP]2[/SUP] (not at all clear though).

The reason I'm a bit unsure what size it is, is because on the cable it says (2 x 6 + 2.5mm). Different makes of cable seem to have different things written on them, but this kind of suggests 6mm[SUP]2[/SUP] with a 2.5 mm CPC? Doesn't it?

I have also tried to measure the circumference of the live or neutral, which is pretty difficult to do so accurately, but I make it very approx between 2.5-3mm. 6mm[SUP]2[/SUP] cable would have a circumference of 2.76mm (approx), whereas 4mm would be 2.26mm(approx), so I'm thinking its 6mm.

The only reason i'm unsure is that I wrote back to the reputable (100% feedback) e-bayer who said that her husband was an electrician and was absolutely sure it was 4mm[SUP]2[/SUP].

What is it?? :confused5:

 

[ipf]

Looks like you've got a good deal:teeth_smile:
Or, at least, better than you thought.

 

[Guest55]

Its 6mm.

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Its 6mm.

 

[telectrix]

could always use archimedes principal. measure the volume of water displaced by a known length. then is a bit of maths to divide the volume by the length = csa, QED

 

[nickblake]

Its 6mm.

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Its 6mm.

as the other have said its 6mm 2 x 6 mm + 2.5m basically means the L and N are 6mm and the CPC is 2.5 mm .. its not red and black by any chance think you got a good deal , having said that depends how much you paid for it

 

[Guest55]

as the other have said its 6mm 2 x 6 mm + 2.5m basically means the L and N are 6mm and the CPC is 2.5 mm .. its not red and black by any chance think you got a good deal , having said that depends how much you paid for it

Just found a roll of red / black 2.5 T&E in dads garage !
It was like finding willy wonkas last golden ticket lol.

 

[HappyHippyDad]

Thats great! I paid £40 so I'm happy. It's brown/blue.

Thanks everyone.

Still cant believe how quickly you all reply. I'll be pleased when I get enough experience and knowledge to help out a bit.

Cheers all. :smiley2:

Ps.. Think i'll give archimedes a miss Telectrix!

 

[Knobhead]

You could do it by weight instead. I''ll give you the figures if you want.

 

[steveberry11]

Take a look at this link It has all the T&E cable

http://www.prysmian.co.uk/export/sites/prysmian-enGB/attach/pdf/6241Y.pdf

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Take a look at this link It has all the T&E cable

http://www.prysmian.co.uk/export/sites/prysmian-enGB/attach/pdf/6241Y.pdf

 

[HappyHippyDad]

You could do it by weight instead. I''ll give you the figures if you want.

Yes please Tony, I'd like to try it just out of interest.

 

[Richard]

Are you sure it's good cable? Is it basec or similar approved? I'm always wary of cheap cable! if it looks to good to be true, more often than not it is!

Not to say you havn't grabbed a bargin mind.

Rich

 

[HappyHippyDad]

Are you sure it's good cable? Is it basec or similar approved? I'm always wary of cheap cable! if it looks to good to be true, more often than not it is!

Not to say you havn't grabbed a bargin mind.

Rich

This certainly looks ok and has basec printed in it.

 

[Guitarist]

Cable from ebay? Hmmm

A lot of rubbish has CE printed on it, but that doesn't make it so.

 

[kingeri]

Cable from ebay? Hmmm

A lot of rubbish has CE printed on it, but that doesn't make it so.

How true, I once bought a reel of '4mm' off ebay, turned out to be some kind of aluminium with copper coating - I put 40amps through it under contolled conditions and it melted pretty quick. Tripe. And not a bargain!

 

[Guitarist]

Happyhippydad, I know that you are new to the profession, but for goodness sake make sure your materials are from a trusted supplier and a quality brand. Buying something as critical as cable from an unknown source, and then finding that you "think" it's not what you ordered is very unprofessional imo. We are talking about people's lives here!

 

[Knobhead]

Yes please Tony, I'd like to try it just out of interest.

This is for one metre stripped cable

2.5mm 22.23 Gr
4mm 35.72 Gr
6mm 53.58 Gr

 

[HappyHippyDad]

Happyhippydad, I know that you are new to the profession, but for goodness sake make sure your materials are from a trusted supplier and a quality brand. Buying something as critical as cable from an unknown source, and then finding that you "think" it's not what you ordered is very unprofessional imo. We are talking about people's lives here!

Point taken.. Ebay for Star Trek DVD's, screwfix for cable!

 

[IzzyS]

I know this is a bit radical, but why not measure its resistance rather than it's weight? And while your at it, you can check you've got the full 50 m.