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Generators & Electric Motors General Discussion

Would T&E pass NEC?


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  #1  
Old 06-18-2018, 08:23:48 PM
Railroads Railroads is offline
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Default Would T&E pass NEC?

Interesting question, Would UK T&E cable with brown.blue,ground be legal in the US? The cable comes in 1mm 1.5mm 2.5mm 4mm and 6mm.

If I understand correctly? The 1mm is 18 AWG, 1.5mm is 16AWG, 2.5mm is 14AWG, 4mm is 12AWG 6mm is 10AWG 10mm is 8AWG, 16mm is 6AWG, 25mm is 4AWG.

Brown is Live, Blue Neutral, Ground is still ground either bare wire or green/yellow striping.

Just and interesting question I have been thinking about this afternoon.

Robert

Last edited by Railroads; 06-19-2018 at 12:17:43 AM.
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Old 06-18-2018, 10:08:03 PM
Vanman Vanman is offline
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Default Re: Would T&E pass NEC?

The one problem that comes to mind is that the NEC specifies that the neutral shall be white or "natural grey". IIRC.

I suppose you could use it for circuits that don't have a neutral. There is no specified color for ungrounded conductors. Other than not green, white, or grey.
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Old 06-18-2018, 11:07:39 PM
Birken Vogt Birken Vogt is offline
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Default Re: Would T&E pass NEC?

Only one way I can see to use a blue wire for neutral.

NEC 200.6 (E) Exception #1.

"Where the conditions of maintenance and supervision ensure that only qualified persons service the installation, grounded conductors in multiconductor cables shall be permitted to be permanently identified at their terminations at the time of installation by a distinctive white marking or other
equally effective means."

Sounds like it can only be done in an industrial facility or the like.

You would have to make sure the metric wire sizes were bigger, but a lot of them don't really line up, and then there is the issue of the insulation type, etc.
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Old 06-18-2018, 11:41:25 PM
Railroads Railroads is offline
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Default Re: Would T&E pass NEC?

Interesting question isn't it? Seems there are some things for sale that come set for 120V and have the UK color code. I cut up a computer cord once and it also had the brown and blue colors inside.

Could use PVC sleeves to make blue white or grey.

---------- Post added at 11:41:25 PM ---------- Previous post was at 11:38:01 PM ----------

[/COLOR]
Quote:
Originally Posted by Vanman View Post
The one problem that comes to mind is that the NEC specifies that the neutral shall be white or "natural grey". IIRC.

I suppose you could use it for circuits that don't have a neutral. There is no specified color for ungrounded conductors. Other than not green, white, or grey.
Keith, I am aware of the neutral colors but I thought I would ask anyways.

There was a discussion some years back about blue becoming a neutral color but nothing came of it because blue is a phase color for 3 phase systems.

Color codes for US and IEC incl UK. https://www.electronicshub.org/elect...g-color-codes/

Post #45 is interesting https://www.electriciantalk.com/f2/w...l-6817/index3/ Personally I would like to see blue become a neutral color. Gray was a live conductor as it was before the 2002 NEC changes. If that fails than make Gray Violet and thus no confusion for three phase power. Blue would then be a neutral.

Robert

Last edited by Railroads; 06-19-2018 at 12:19:48 AM.
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Old 06-19-2018, 01:30:30 AM
Vanman Vanman is offline
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Default Re: Would T&E pass NEC?

I don't think that the NEC is applicable to anything that's cord and plug connected, like appliances. Maybe for large, temporary installations. Like big pin and sleeve stuff. Not sure what the UL might require in order to get their stamp of approval.
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