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An example of a copper alloy conductor is cadmium copper wire, which is used for railroad electrification in North America. [5] In Britain the BPO (later Post Office Telecommunications ) used cadmium copper aerial lines with 1% cadmium for extra strength; for local lines 40 lb/mile (1.3 mm dia) and for toll lines 70 lb/mile (1.7 mm dia).
Mineral-insulated copper-clad cable is a variety of electrical cable made from copper conductors inside a copper sheath, insulated by inorganic magnesium oxide powder. The name is often abbreviated to MICC or MI cable, and colloquially known as pyro (because the original manufacturer and vendor for this product in the UK was a company called ...
John Ferreol Monnot, metallurgist, the inventor of the first successful process for manufacturing copper-clad steel. Copper-clad steel (CCS), also known as copper-covered steel or the trademarked name Copperweld is a bi-metallic product, mainly used in the wire industry that combines the high mechanical strength of steel with the conductivity and corrosion resistance of copper.
A metal scrap worker is pictured burning insulated copper wires for copper recovery at Agbogbloshie, Ghana. When foresting companies cut down trees, more are planted in their place; however, such farmed forests are inferior to natural forests in several ways. Farmed forests are not able to fix the soil as quickly as natural forests.
Copper wire thefts have also become increasingly common in the US. With copper prices at $3.70 a pound as of June 2007, compared to $0.60 a pound in 2002, people have been increasingly stealing copper wire from telephone and power company assets. People have even been injured and killed in power plants while trying to obtain copper wire.
A surge of thefts of valuable copper wiring has caused disruptions for the Metro rail system, which serves more than 5 million riders a month. Copper wire thefts on the rise, causing delays for ...