[sdiy] 0.100 pin header reliability.

Florian E. Teply usenet at teply.info
Tue Nov 16 12:35:54 CET 2010


On Mon, 15 Nov 2010 19:18:56 +0000
Graham Atkins <gatkins at blueyonder.co.uk> wrote:

> Aluminium for wiring ?
> 
> Are you sure about that, sounds highly unlikely, never heard of  
> aluminium
> conductors. Steel, copper alloys, silver, even gold but not aluminium.
> 
Actually, there have been two main reasons especially for eastern europe
to go for aluminium in house wirings (and even long distance power
grids). For one, copper has become quite expensive in the 70ies. Even
though not as expensive as it is nowadays IMO. Second reason is, that
behind the iron curtain they had virtually no copper ores, so they'd
have to import the stuff from the western world. But aluminium ores
were comparably abundant, so aluminium was quite cheap and easy to get.

Nowadays with all the problems aluminium poses for connections, i start
to see more and more compound cables (especially in the Car-HiFi market
with all those thick speaker cables), where an inner aluminium wire has
an outer shell of copper. No idea though whether or not they solved the
corrosion problem between copper and aluminium...

HTH,
Florian



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