[RE-wrenches] Braided grounding wire

[Tom DeBates]

good day Holt,
  We used the braided grounding wire for a job with Sanyo modules. This was "pre-WEEBS" and I was never satisfied with the typical ILSCO lug detail as the Sanyo frame thickness seems to be very thin and the 10-32 screws either do not torque down properly, or strip. So, for me, and this project in particular, the braided wire seemed like the best solution. 
  We recently (how timely?) had a service call for this project and had to pull one module. The braided wire was in excellent condition. 
  The only problem we has installing this wire was the means to fasten it to the module. We opted to use a star(external) washer on the 10-32 screw. This worked "OK". Since you e-mail brought this back up, I called Continental Cordage (the manufacturer) and talked to the tech rep about this detail. He suggested placing a sleeve (copper) at the point of connection, compressing the sleeve and then drilling for fastener. Sounds good to me.
  For your info the specs on the product we used:
1/2" wide
.030" thick
36 AWG wire for stranding
48 strands
8 wires/strand
384 wires
equiv ga.=10AWG
53 amps
...tinned copper, of course.

  Should you have difficulty locating this product, I have an "extra" 250' spool.

good luck,
Tom  

Tom DeBates
Habi-Tek
524 Summit St.
Geneva,IL. 60134
    630-262-8193
fax 630-262-1343


--- On Fri, 8/22/08, holtek at sbcglobal.net <holtek at sbcglobal.net> wrote:

> From: holtek at sbcglobal.net <holtek at sbcglobal.net>
> Subject: [RE-wrenches] Braided grounding wire
> To: "RE-wrenches" <re-wrenches at lists.re-wrenches.org>
> Date: Friday, August 22, 2008, 10:41 AM
> 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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