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
~~~~~~~~~~~~~~~~~~~~
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|