[RE-wrenches] solid vs stranded AC vs DC

[Joel Davidson]

2% loss from any resistance source over 25 years is significant.

----- Original Message ----- 
From: "Darryl Thayer" <daryl_solar at yahoo.com>
To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
Sent: Monday, August 03, 2009 2:04 PM
Subject: Re: [RE-wrenches] solid vs stranded AC vs DC



Yes, that is what the code book and my electricians handbook says, but 2% is 
very little.  I would think that passing through a conduit hole is larger 
than that.
Darryl

--- On Mon, 8/3/09, Matt Tritt <solarone at charter.net> wrote:

> From: Matt Tritt <solarone at charter.net>
> Subject: Re: [RE-wrenches] solid vs stranded  AC vs DC
> To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
> Date: Monday, August 3, 2009, 3:49 PM
>
>
>
>
>
>
> Darryl,
>
>
>
> Say what?! This would seem to indicate that solid core is
> actually
> better for DC than stranded wire. Can this possibly be
> true??
>
>
>
> Matt
>
>
>
> Darryl Thayer wrote:
>
>   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 <jay at asis.com>
> wrote:
>
>
>
>     From: jay peltz <jay at asis.com>
> Subject: Re: [RE-wrenches] solid vs stranded  AC vs DC
> To: "RE-wrenches" <re-wrenches at 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 this
>
>
>       difference
> is so slight that it has no effect on anything we will
>
>
>     do.
>
>
>       Darryl
> --- On Fri, 7/31/09, jay peltz <jay at asis.com>
>
>
>     wrote:
>
>
>
>         From: jay peltz <jay at asis.com>
> Subject: [RE-wrenches] solid vs stranded AC
>
>
>
>     vs DC
>
>
>
>         To: "RE-wrenches" <re-wrenches at 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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