Re: Aluminium aka Aluminum Wire (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Sun, 07 Oct 2007 11:06:07 -0700
From: Barton B. Anderson <bartb@xxxxxxxxxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: Re: Aluminium aka Aluminum Wire (fwd)

Hi Dave,

Not really. The same design considerations go into both (or any other 
conductor). If the design shows it will work electrically and 
mechanically, then you only have to look at cost and availability.

Bart

Tesla list wrote:

>---------- Forwarded message ----------
>Date: Sun, 07 Oct 2007 11:47:29 -0400
>From: Dave Pierson <davep@xxxxxxxx>
>To: Tesla list <tesla@xxxxxxxxxx>
>Subject: Re: Aluminium aka Aluminum Wire (fwd)
>
>[I may be getting OT??]
>
>Assume primary and/or secondary of Cu and Al Designed to SAME resistance.
>The Al one (s) will be a bit lrager.  Any othe reason to chose one
>over the other?
>
>  
>
>>>Cooper-weld wire was developed as an engineering compromise.  Antennas 
>>>for low frequencies, such as the Beverage, flat top and multi-curtain 
>>>rhombic become physically large.  The use of copper-weld is a 
>>>compromise between and among cost, strength, and r. f. resistance.
>>>      
>>>
>
>  
>
>>Copper clad steel has been around longer than antennas, I suspect.  The 
>>primary use was for telegraph wires.
>>    
>>
>   Essentially all (and thats a lot) of Telco telephone drop wires are
>   (whomever that may be, these days) ARE copperweld.  Try a magnet, careful
>   examination of end, etc.
>   (OK: my voice service is on the cable, and the core of THAT is copperweld,
>    usually....)  Granted the tradeoffs of loss/cost are different for a
>    Tesla Coil than for a cable system.)
>
>   Some early telegraph used iron wire, mostly for cost & availability.
>
>   Al is fine for AC power IF HANDLED WELL.  Look at the HV lines.  LOTS of the
>   home installations were poorly done, in retrospect.  (Mostly: Al is pickier
>   than Cu about tightness of connection, and more prone to stray corrosion.)
>
>   best
>    dwp
>
>
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>  
>