[RE-wrenches] useful info on wire color coding

[Darryl Thayer]

Hi all I screwed up again

the code references are

 Hi leg color 110.15

 

 phase location 

 panel boards  408.3E (left to right ABC with B phase if there is a hi 
leg B phase)

 industrial panel boards 409.102B  (same)

 MCC motor controllers 430.97B    (same)



Before the code change the Hi-leg was commonly on the Right in my region.  

A, B, C is clockwise rotation.  But nothing said it would ever be 
checked, the utility usually does not say, and after it is connected and
 energized you test at the last disconnect before the motor. 



 (on a job in 1992 where I had connected several motors including a 
200HP, overnight someone had reversed phases to my Main panel board.  I 
tested before closing the MCC and found with my phase rotation meter the
 problem, the 200 HP could not be run or even bumped without damage, 
always check your rotation) 

--- On Mon, 8/23/10, Darryl 
Thayer <daryl_solar at yahoo.com> wrote:

From: Darryl Thayer 
<daryl_solar at yahoo.com>
Subject: Re: [RE-wrenches] useful info 
on wire color coding
To: "RE-wrenches" 
<re-wrenches at lists.re-wrenches.org>
Date: Monday, August 23, 
2010, 11:04 AM

HI all
it is referenced several times.  
First 110.15
 "Orange or other marking ect"
    408.3E Panel boards
    409.120
 Industrial panel boards
    430.80-84 (MCC) Motor Control Centers
Part
 of this is from memory, I do not have my code book handy, and as always
 my memory is not so good

--- On Mon, 8/23/10, Mark Frye <markf at berkeleysolar.com>
 wrote:

From: Mark Frye <markf at berkeleysolar.com>
Subject: [RE-wrenches]  useful info on wire color coding
To: "'RE-wrenches'" <re-wrenches at lists.re-wrenches.org>
Date: Monday, August 23, 2010, 9:06 AM



 
 
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From: Mark Frye [mailto:markf at berkeleysolar.com] 

Sent: Sunday, August 22, 2010 6:58 AM
To: 
'RE-wrenches'
Subject: RE: [RE-wrenches] useful info on wire color 
coding



Too lazy to look myself, 
 but maybe one of you guys with an 
electronic version of the Code can search for it: a requirement to 
mark the "stinger" leg of a 240V delta with a 120v neutral tap with orange 
tape ?

Mark Frye 
Berkeley Solar Electric Systems 

303 Redbud Way 

Nevada City,  CA 
95959 
(530) 
401-8024 
www.berkeleysolar.com 
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