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Re: [TowerTalk] "New" Wire

To: "AA6DX - Mark" <aa6dx@arrl.net>, "Towertalk" <towertalk@contesting.com>
Subject: Re: [TowerTalk] "New" Wire
From: "Mark Robinson" <markrob@mindspring.com>
Date: Mon, 8 Nov 2010 13:18:41 -0500
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Good to hear this. I am fed up with not knowing the specifications of 
imported cheap foreign "junk"

When it fails we have no come back.


Mark N1UK


----- Original Message ----- 
From: "AA6DX - Mark" <aa6dx@arrl.net>
To: "Towertalk" <towertalk@contesting.com>
Sent: Monday, 08 November, 2010 1:12 PM
Subject: [TowerTalk] "New" Wire


Now that you are all rested from SS --
I received this from a company I have dealt with, and recommend .. Sherco 
Automotive .. they regularly offer specials on wire, cable, clamps, fuses, 
bulbs, and other ham radio usable items.  I learned something about wire I 
did not know!  Perhaps this letter will enlighten some other TTers, too! 
73   Mark  AA6DX
~~~~~~~~~~~~~~~~~~~~~~~~~
To all our valued customers;

    For almost 25 years we have tried to provide quality products at the 
lowest prices. In some cases this meant sourcing our products from China and 
other parts of Asia. When the quality of offshore products is good or 
domestic products are no longer available, this has been an acceptable 
solution.  There are some items that can not be replaced by off shore 
products, due to construction or lack of specification.

    Recently, you may have noticed that imported automotive primary wire 
spools have become lighter then they used to be. The length of a 100 ft 
spool has not changed but the amount of copper has.  This new wire is now 
called CCA (Copper Clad Aluminum). Just like it sounds, this wire is made of 
aluminum with a copper coating.  Aluminum  only has about 65% of the 
conductivity of copper. Stated another way, and when we include the tiny bit 
of copper applied, CCA wire has about 34 percent greater resistance than a 
pure copper wire of the same gauge and construction. Resistance in a 
conductor causes a loss of power in that conductor, in terms of voltage 
and/or current. It also can become a source of heat if the resistance and 
amount of power delivered are high enough.  Since most GPT insulation on 
wire is only rated at 80 °C (176°F), and the underhood temperature can come 
close to that in some parts of the country, any additional heat from 
resistance can soften or even melt the insulation. This can lead to 
electrical shorts and even fire.

    As of November 1, Sherco has committed to supplying only US MADE PURE 
COPPER Primary wire and Battery Cable.  With the exception of our flea 
market liquidation pages, all spooled wire and cable will come from only US 
manufacturers that we trust to supply wire of all copper, at the correct 
specification for the gauge and use.  Along with this wire we will also 
supply domestic product for our bare terminals, heatshrink terminals, and 
adhesive lined heat shrink tubing.

   American products produced by American workers have always lead the world 
in quality and performance. We at Sherco Auto Supply think it is time to get 
back to what made our country great.  If you agree with us please let us 
know.

Mark Sherman, VP Sales
Sherco Auto Supply
3014 nw 25 Ave
Pompano Beach, FL 33069
800-548-6229

http://www.sherco-auto.com

~~~~~~~~~~~~~~~~~~~~
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