[Beowulf] Re: HVAC and room cooling... wires

Joel Jaeggli joelja at darkwing.uoregon.edu
Sat Feb 7 14:40:29 EST 2004


On Sat, 7 Feb 2004, John Hearns wrote:

> On Fri, 6 Feb 2004, Jim Lux wrote:
> 
> > This is why aluminum wiring was popular: the density of Al at 2.7 vs Cu at 
> > 8.96, even after you factor in the fact that you might need more aluminum 
> > (because it's lower conductivity), it's still better than 2:1 weight 
> 
> Oh yes.
> Lots of telephone circuits were wired in aluminium in the 1960's in the 
> UK. Corrosion now means these customers have difficulty getting ADSL.

yeah but that's 24-26awg twisted pair for phone a 14 12 10 or 8 awg cable 
for power have substantialy less surface area relative to it's volume.
 
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Joel Jaeggli  	       Unix Consulting 	       joelja at darkwing.uoregon.edu    
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