[RE-wrenches] Braided grounding wire

[R. Walters]

We've used braided, plated ground strap for over a decade. We  
inherited the practice from commercial size tracking systems  
installed in the 70s and early 80s.
Anixter wire is our supplier. I can get you a part number if you  
need. We isolate it from direct contact with aluminum, with stainless  
hardware.
I've seen solid copper strain harden and break after several years of  
seasonal tilt adjustments.

Ray


On Aug 22, 2008, at 9:46 AM, Wind-sun.com wrote:

> I was under the impression that braided or fine strand wire was a  
> no-no for grounding because it corrodes so much faster and easier  
> than solid wire.
>
> ...................................................................... 
> ............................
> Northern Arizona Wind & Sun - Electricity From The Sun
> Solar Discussion Forum: http://www.wind-sun.com/ForumVB/
> ...................................................................... 
> ............................
> ----- Original Message -----
> From: holtek at sbcglobal.net
> To: RE-wrenches
> Sent: Friday, August 22, 2008 8:41 AM
> Subject: [RE-wrenches] Braided grounding wire
>
> Anybody know a source for braided grounding wire? Internet search  
> fruitless......
>
> Holt E. Kelly
> Holtek Fireplace & Solar Products
> 500 Jewell Dr.
> Waco,Tx. 76712
> 254-751-9111
> 254-228-9621 (cell)
> holtek at sbcglobal.net
> ----- Original Message -----
> From: Kurt Albershardt
> To: RE-wrenches
> Sent: Friday, August 22, 2008 12:57 AM
> Subject: Re: [RE-wrenches] motor starting issues (was: offgrid  
> systemquestion)
>
> --On Tuesday, August 19, 2008 7:57 AM -0700 Peter Parrish  
> <peter.parrish at calsolareng.com> wrote:
> >
> > Any motor will need both a voltage and current to operate  
> properly, and they tend to draw more and more current as the source  
> (inverter) voltage drops.
>
>
> Back to basic physics:
>
> Depending on design, electric motors can be constant power or  
> constant torque (or some combination of two) devices.
>
> Three phase AC motors are generally simpler in design and better  
> behaved than either either single phase AC motors or DC motors.   
> Permanent magnet synchronous 3Ø AC motors (available now) closely  
> approach the theoretical limits of electromechanical motor systems  
> in general.
>
> Modern power electronics and control systems give us essentially  
> perfect control of voltage, current, and frequency in AC systems.
>
> Intelligently combining the above allows us to design efficient  
> electromechanical systems which match nearly any complex supply  
> impedance.  These systems also happen to live longer, fail less  
> often, and reduce both battery bank and inverter requirements.
>
> The market (arguably free on so many levels, and obviously not on  
> so many others) can address this using current technology.   System  
> sizing math not has changed fundamentally in several decades but we  
> are getting closer to those fundamental limits.
>
> Industrial systems are a bit ahead of the consumer market in some  
> areas but behind in others.  As one very basic example, Turbocor's  
> maglev compressor has created a few waves in the commercial and  
> light industrial sector but I fully expect some fascinating trickle- 
> down benefits over next few years <http://www.turbocor.com/ 
> products_technology/>
>
>
>
>
>
>
>
> .
>
>
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R. Walters
Solarray.com
NABCEP # 04170442	



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