Re: Aluminium Wire (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Sat, 29 Sep 2007 11:27:00 EDT
From: Mddeming@xxxxxxx
To: tesla@xxxxxxxxxx
Subject: Re: Aluminium Wire  (fwd)

 

Hi Frank,
 
I think you answered your own question. It is widely used, not  because it is 
just as good, but because it is CHEAP and light weight.  In components such 
as heat sinks, where there is a large bulk and short  distance, the higher 
resistance doesn't have a significant effect. And as you  pointed out, in long 
lines, larger wire IS required to  compensate, which is exactly the reason it was 
NOT recommended for a  TC secondary.
 
Matt D.
 
 
In a message dated 9/29/07 1:04:31 A.M. Eastern Daylight Time,  
tesla@xxxxxxxxxx writes:

---------- Forwarded message ----------
Date: Fri, 28 Sep 2007  21:23:31 -0700
From: Frank <fxrays@xxxxxxxxxx>
To: Tesla list  <tesla@xxxxxxxxxx>
Subject: RE: Aluminium Wire   (fwd)

Aluminium is used for the plates in variable air capacitors,  plate 
cap heat sinks and other various components in radio transmitters  
from VLF to VHF and in high power. If it was such a loser for RF, 
they  would not widely use it.

It is used on transmission lines because it is  MUCH cheaper than 
copper. They compensate for the loss by increasing the  diameter. The 
steel core is for the mechanical strength to support the  line.
Frank


 



************************************** See what's new at http://www.aol.com