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#123604 - 04/15/06 08:01 AM U.S. Romex vs. U.K. "Twin & earth"
pauluk Offline
Member
Registered: 08/11/01
Posts: 7520
Loc: Norfolk, England
For comparison -- A piece of American 12-2 w/ground Romex and a piece of British 6242Y 2.5 sq. mm. T&E (with reduced-size ground wire):


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#123605 - 04/15/06 12:45 PM Re: U.S. Romex vs. U.K. "Twin & earth"
NORCAL Offline
Member
Registered: 09/25/02
Posts: 865
The "Twin & Earth" cable looks closer to UF cable IMO.
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#123606 - 04/15/06 01:14 PM Re: U.S. Romex vs. U.K. "Twin & earth"
WESTUPLACE Offline
Member
Registered: 03/29/04
Posts: 251
Loc: Kingwood, TX USA
T & E cable would make good switch legs here in the US, no re-identifing the white. LOL
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#123607 - 04/15/06 01:32 PM Re: U.S. Romex vs. U.K. "Twin & earth"
wa2ise Offline
Member
Registered: 11/29/02
Posts: 782
Loc: Oradell NJ USA
Could you legally use the British "romex" in the USA? If it's listed or approved by the revalent British agnecy, is that good enough, or does the NEC require that the agency be an American outfit?
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#123608 - 04/15/06 04:39 PM Re: U.S. Romex vs. U.K. "Twin & earth"
Larry Fine Offline
Member
Registered: 02/18/05
Posts: 693
Loc: Richmond, VA
I'd love to have some of that wire for DC circuits and switch loops! I have a feeling that the reduced GEC would be an issue. Is it available with a full-sized earth?

Yes, it looks like UF. Are all y'all (that's plural for "y'all") aware that the Klein NM strippers also work very well on UF?

These guys: http://www.kleintools.com/cutterstrippers/index.html
_________________________
Larry Fine
Fine Electric Co.
fineelectricco.com
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#123609 - 04/15/06 05:17 PM Re: U.S. Romex vs. U.K. "Twin & earth"
briselec Offline
Member
Registered: 12/28/05
Posts: 141
Loc: Brisbane, Australia
I'm amazed that they both have solid earths. I don't think we have ever used solid earths in Australia. Stranded is much less likely to snap off at terminations. Stranded conductors are pretty much the norm here for everything except domestic light circuits. Much easier to work with and less likely to break.
If you use single insulated wires in conduit runs are they solid too? That's when you really notice how much easier stranded is to use.



[This message has been edited by briselec (edited 04-15-2006).]
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#123610 - 04/15/06 05:36 PM Re: U.S. Romex vs. U.K. "Twin & earth"
iwire Offline
Moderator
Registered: 01/05/03
Posts: 4391
Loc: North Attleboro, MA USA
We use solid up to 10 AWG (40 amp capacity if that helps on the size)

All our NM 10 AWG and smaller is solid.

Snapping is not a problem and I like to work with solid.

Cables 'push' a lot farther when solid than when stranded.
_________________________
Bob Badger
Construction & Maintenance Electrician
Massachusetts
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#123611 - 04/15/06 06:24 PM Re: U.S. Romex vs. U.K. "Twin & earth"
electure Offline


Member
Registered: 12/24/00
Posts: 4259
Loc: Fullerton, CA USA
The T&E's conductors appears to be slightly smaller in diameter than the #12s. But still larger than #14. Like a #13

Is the ampacity between 15-20 Amps?
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#123612 - 04/16/06 01:13 AM Re: U.S. Romex vs. U.K. "Twin & earth"
briselec Offline
Member
Registered: 12/28/05
Posts: 141
Loc: Brisbane, Australia
Quote:
Cables 'push' a lot farther when solid than when stranded


Yes but pulling is a lot easier with stranded.
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#123613 - 04/16/06 04:33 AM Re: U.S. Romex vs. U.K. "Twin & earth"
uksparx Offline
Member
Registered: 04/25/05
Posts: 44
Loc: Egremont,Cumbria,UK
What I'd like to know from you guys over the pond is why do you have all that "paper" stuffed into your cables? I have seen it many times and wondered.

In answer to the ampacity of 2.5mm T&E, it is rated at around 20Amps. The actual current depends on the conditions it is installed under e.g. in thermal insulation or in free air.
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