I looked in the code book and found stranded wire has about 2% higher DC 
resistance than solid, Chapter 9 table 8, and that for AC resistance the same 
value as DC resistance to within the table accuracy Chapter 9 Table 9

This table points out that for AC resistance it is important to know the 
conduit system, as the reactance will have an effect.  With AC it is important 
to never allow a single wire to pass through a metal surface as this will 
induce eddy currents and magnetic effects into the metal causing voltage drop 
and heating.  

--- On Fri, 7/31/09, jay peltz <j...@asis.com> wrote:

> From: jay peltz <j...@asis.com>
> Subject: Re: [RE-wrenches] solid vs stranded  AC vs DC
> To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org>
> Date: Friday, July 31, 2009, 10:01 PM
> Hi Darryl,
> 
> But what are the differences and when do they come into
> play?
> 
> 
> 
> 
> On Jul 31, 2009, at 7:25 PM, Darryl Thayer wrote:
> 
> >
> > Well there is very slight differences between AC and
> Dc But thisĀ  
> > difference
> > is so slight that it has no effect on anything we will
> do.
> > Darryl
> > --- On Fri, 7/31/09, jay peltz <j...@asis.com>
> wrote:
> >
> >> From: jay peltz <j...@asis.com>
> >> Subject: [RE-wrenches] solid vs strandedĀ  AC
> vs DC
> >> To: "RE-wrenches" <re-wrenches@lists.re-wrenches.org>
> >> Date: Friday, July 31, 2009, 7:00 PM
> >> HI All,
> >>
> >> I'm trying to understand this wire issue.
> >>
> >> Whether or not there is a difference between
> stranded or
> >> solid wire for DC or AC.
> >>
> >> Any takers on this one?
> >>
> >> thanks,
> >>
> >> jay
> >>
> >> peltz power
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