Wanted by the FBI--a tree trimming tractor

   / Wanted by the FBI--a tree trimming tractor #12  
The high voltage lines on the poles are copper, and rather old.
 
   / Wanted by the FBI--a tree trimming tractor #13  
The high voltage lines on the poles are copper, and rather old.

Most all high power transmission lines are steel reinforced aluminum. Copper is sometimes used for medium and low power lines, though more modern installations will often have aluminum from the transformer to the building.

Of common metals for wiring at "normal" temperatures, in order of electrical conductance, it's silver, copper, gold, and then aluminum.
 
   / Wanted by the FBI--a tree trimming tractor #14  
Interesting. I'll bet they stole the lines that they cut. I couldn't find the news story, but seems like the high price of copper has resulted in a lot of copper theft, with several of the idiots frying themselves.

What "high price of copper"? It looks about as low as it's been in the last FIVE years.
spot-copper-5y-Large.gif


Kitco - Spot Copper Historical Charts and Graphs - Copper charts - Industrial metals
 

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