[R-390] Copper clad/copperweld ant. wire

[Lester Veenstra M0YCM]

The "power" can rise?
Voltage I could swallow, but "power" is sticking a bit.

Full Name:      Lester B Veenstra 
Job Title:      Communication Sys Des Engr Sr Stf 
Department:     6L01 Site Operations Collaboration  and Reach-Back (SOCAR) 
Company:        Integrated Systems & Solutions 
Business Address:       Lockheed Martin IS&S 
PSC 45 Box 781
APO AE 09468 


Dawn Cottage
Norwood
Harrogate HG3 1SD  UK 
 
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Office             940-6456
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-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
On Behalf Of Charles A Taylor
Sent: Monday, November 20, 2006 2:38 PM
To: r-390 at mailman.qth.net
Subject: [R-390] Copper clad/copperweld ant. wire

----- Original Message ----- 
From: "David C. Hallam" <dhallam at rapidsys.com>
To: "Dan Merz" <mdmerz at verizon.net>; <r-390 at mailman.qth.net>
Sent: Sunday, November 19, 2006 3:19 PM
Subject: RE: [R-390] Copper clad/copperweld ant. wire


> If you are looking for corrosion resistance as well as strength, use
> aluminum clad steel wire.  It is used for the strength member in 
> ACSR power
> transmission cable.
>
> David
> KC2JD
>
David,

ACSR=aluminum cable, steel reinforced. Consists of central strands of 
steel wire, surrounded by aluminum strands. Very conductive and very 
cost effective over copper conductor. It's cost effective to string 
large cables for future growth; so much so that the power transfer is 
now limited by the inductance of the cable, rather than the 
resistance.

Which leads to the strange situation that power at the far end of a 
lightly-loaded line can rise higher than the source due to capacitance 
of the conductor to ground and surrounding conductors.

Thought I'd throw that in.

Charles

Charles A Taylor, WD4INP
   Grifton, North Carolina


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