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#59938 - 12/19/05 01:04 AM Is wire made with pure copper
PEdoubleNIZZLE Offline
Member

Registered: 06/16/04
Posts: 176
Loc: McKeesport, PA, USA
I have a stupid question for everyone. Is the copper in wiring made from pure copper (not accounting for negligible impurities), or is it an alloy of some sort?
-Josh

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#59939 - 12/19/05 07:00 AM Re: Is wire made with pure copper
renosteinke Offline
Cat Servant
Member

Registered: 01/22/05
Posts: 5305
Loc: Blue Collar Country
Not only is it essentially pure copper, it is what is known as "oxygen free" copper.

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#59940 - 12/19/05 09:00 AM Re: Is wire made with pure copper
IanR Offline
Member

Registered: 12/06/04
Posts: 326
Loc: Palm Bay FL USA
"oxygen free" copper
They are required to use it on sattelites and on the space station.

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#59941 - 12/19/05 10:19 AM Re: Is wire made with pure copper
SolarPowered Offline
Member

Registered: 07/05/04
Posts: 615
Loc: Palo Alto, CA, USA
Ya mean,... those guys selling the "oxygen-free" interconnects at $100 a foot are charging for a feature the $5 RCA cables from Radio Shack already have??? I'm shocked, I tell you! Shocked!!!

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#59942 - 12/19/05 03:19 PM Re: Is wire made with pure copper
Sandro Offline
Member

Registered: 12/30/01
Posts: 449
Loc: Stoney Creek, ON, Canada
Ok, you got me....what benefits are their to oxygen free copper?

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#59943 - 12/19/05 03:27 PM Re: Is wire made with pure copper
LK Offline

Member

Registered: 01/21/03
Posts: 1721
Loc: New Jersey
With oxygen free copper, the electrons sweat less.

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#59944 - 12/19/05 03:33 PM Re: Is wire made with pure copper
jwhite Offline
Member

Registered: 12/01/05
Posts: 67
Loc: Trenton, NC, USA

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#59945 - 12/19/05 03:59 PM Re: Is wire made with pure copper
CTwireman Offline
Member

Registered: 02/07/02
Posts: 839
Loc: Connecticut, USA
Yes, wire is made from pure copper. Even small amounts of impurities can greatly reduce conductivity.

Peter
_________________________
Peter

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#59946 - 12/19/05 04:26 PM Re: Is wire made with pure copper
wa2ise Offline
Member

Registered: 11/29/02
Posts: 771
Loc: Oradell NJ USA
Just imagine if the only good conductor of electricity was mercury. Instead of copper wire, you'd be using rubber hoses filled with mercury. Slices would be fun.... Talk about leakage.

SOme audiofools might be convinced that mercury filled garden hoses for speaker cable gave the music a "fluid" sound....

Heard, that back in WW2, some buildings built for the Manhattan project (A bomb development) were wired with silver wire, as copper was in short supply.

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#59947 - 12/19/05 04:49 PM Re: Is wire made with pure copper
NJwirenut Offline
Member

Registered: 09/15/01
Posts: 816
Loc: Bergen County, NJ
 Quote:
Heard, that back in WW2, some buildings built for the Manhattan project (A bomb development) were wired with silver wire, as copper was in short supply.


Not buildings, AFAIK, but the electromagnet windings and busbars for the calutrons at Oak Ridge, TN, used for uranium isotope separation:
http://www.childrenofthemanhattanproject.org/HISTORY/H-06b2-1.htm

They borrowed 15,000 TONS of it from the US treasury...

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