x27;s been plenty of discussion here in the past on AC wire colors and
> neutral. With regards to DC, NFPA 79 and UL 508 A also define BLUE for
> ungrounded dc control circuits and WHITE with BLUE stripe for grounded dc
> current-carrying control circuit conductor. EN 60204-1 defines BLA
Hi Folks,
There's been plenty of discussion here in the past on AC wire colors and
neutral. With regards to DC, NFPA 79 and UL 508 A also define BLUE for
ungrounded dc control circuits and WHITE with BLUE stripe for grounded dc
current-carrying control circuit conductor. EN 60204-1 de
Just to let everyone know, I had a conversation with a UL Engineer. I was
using the wrong section of UL508A, which was for Industrial Machinery. For
Control Panels, only the ground wire has a specific color assigned. We are
free to use European wire colors for all AC wiring inside the
: [PSES] AC wire colors for international use
White or grey for any grounded, current carrying conductor is what I recall
from the NEC (NFPA 70)
_
Ralph McDiarmid | Schneider Electric | Renewable
Engineer
From: John Cochran
To: EMC-PSTC@LISTSERV.IEEE.ORG
List-Post: emc-pstc@listserv.ieee.org
List-Post: emc-pstc@listserv.ieee.org
List-Post: emc-pstc@listserv.ieee.org
Date: 03/17/2010 01:14 PM
Subject:Re: [PSES] AC wire colors for international use
I stand corrected in regards to UL508A. It sounds like UL 508A is behind the
times. I have had commercial and industrial air conditioners UL Listed with
European wire colors. UL 1995 does not force internal wire colors to all
black. I didn’t realize that UL 508A did. If the panel is for a
In message
,
dated Wed, 17 Mar 2010, John Cochran writes:
>I just found out that since we build to UL508A compliance, the Hot wire
>must be Black and the Neutral must be White or Gray (UL508A 66.5.3).
>It looks like the Ground wire can be Green or Green/Yellow. I don?t
>thin
I just found out that since we build to UL508A compliance, the Hot wire must
be Black and the Neutral must be White or Gray (UL508A 66.5.3). It looks like
the Ground wire can be Green or Green/Yellow. I don’t think these wire
colors will work for Europe.
John Cochran
From: emc-p
Hello John,
Brown, blue and green/yellow are not a violation of the NEC or CEC. You can
use them in North America.
The NEC specifies only a few wire colors. Green and green/yellow can only be
used for ground. White and grey are reserved for neutral. No other colors
are reserved for a
)
product regulatory analyst
(t) +1.512.272.6540
lauren_cr...@amat.com
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John Cochran
Sent by: emc-p...@ieee.org
03/17/2010 11:31 AM To
"EMC-PSTC@LISTSERV.IEEE.ORG"
cc
Su
Sorry this question has probably already been answered many times, but I want
to use the same AC wiring inside of an industrial control panel. Is it
acceptable to use European wire colors (Brown, Blue, Green/Yellow) inside of a
North American 115VAC industrial control panel? The NEC, according
Safety
From: owner-emc-p...@majordomo.ieee.org
[mailto:owner-emc-p...@majordomo.ieee.org] On Behalf Of rbus...@es.com
Sent: Tuesday, June 03, 2003 11:57 AM
To: emc-p...@majordomo.ieee.org
Subject: Wire Colors
I have a customer that wants to remove the power plug (and IEC 309
style) from our
wrote on 06/03/2003 08:56:53 AM:
> I have a customer that wants to remove the power plug (and IEC 309
> style) from our equipment and connect the wires to a power distribution
> system beneath the computer floor. This distribution system uses an IEC
> style "din rail" type of barrier stri
rbus...@es.com]
Sent: Tuesday, June 03, 2003 11:57 AM
To: emc-p...@majordomo.ieee.org
Subject: Wire Colors
I have a customer that wants to remove the power plug (and IEC 309
style) from our equipment and connect the wires to a power distribution
system beneath the computer floor. This distributio
I read in !emc-pstc that rbus...@es.com wrote (in ) about 'Wire Colors' on Tue, 3 Jun
2003:
>I have a customer that wants to remove the power plug (and IEC 309
>style) from our equipment and connect the wires to a power distribution
>system beneath the computer floor. This
I have a customer that wants to remove the power plug (and IEC 309
style) from our equipment and connect the wires to a power distribution
system beneath the computer floor. This distribution system uses an IEC
style "din rail" type of barrier strip where one inserts the bare wire
into a hole and
Hello,
I hope that you can help with this. I was asked to inquire about something and
although it doesn't pertain specifically to products I figured it might be
something
that someone here would know something about.
The Question:
"NEC 200-7 requires a wire to be re-identified if it is going
t for 480VAC says they
can't do it because the wires don't meet the color codes in the NEC. The wires
are all black.
Is this really a problem or are these Electricians just giving us a hard time?
I thought internal wire colors are not important (except for the green/yellow
protective g
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