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This improved conductivity over bare aluminum makes the copper-clad aluminium wire a good fit for radio frequency use. The skin effect is similarly exploited in copper-clad steel wire, such as the center conductors of many coaxial cables, which are commonly used for high frequency feedlines with high strength and conductivity requirements.
Often the tubes are heated to react the mix of powders. Once reacted the tubes are sometimes flattened to form a tape-like conductor. The resulting wire is not as flexible as conventional metal wire, but is sufficient for many applications. There are in situ and ex situ variants of the process, as well a 'double core' method that combines both ...
In communist former East Germany (GDR, 1945-1990), aluminum or Copper-clad aluminium wire (″AlCu-Kabel″) had to be used for wiring as copper was expensive to import. [4] While all devices were designed for aluminum during that era, this ended with unification in 1990 when standard Western European equipment became available and the national ...
For instance, instead of 14 AWG (American wire gauge) copper wire, aluminium wiring would need to be 12 AWG on a typical 15 ampere lighting circuit, though local building codes vary. Solid aluminium conductors were originally made in the 1960s from a utility-grade aluminium alloy that had undesirable properties for a building wire, and were ...
Copperweld is an American company based in Fayetteville, Tennessee, and maintaining a management office in Brentwood, Tennessee.Its main products are wire and stranded electrical cable made from its Copperweld brand copper-clad steel ("CCS") or copper-clad aluminum ("CCA"). [1]
The resistance of copper 16-gauge or heavier speaker connection cable has no detectable effect in runs of 50 feet (15 meters) or less in standard domestic loudspeaker connections for a typical 8 ohm speaker. [4] For aluminum or copper-clad aluminum wire, 14-gauge or heavier cable is needed to support this claim due to higher resistivity. [4]
Over the K&T era multiple wire types evolved. Early wiring was insulated with cotton cloth and soft rubber, while later wiring was much more robust. Although the actual wire covering may have degraded over the decades, the porcelain standoffs have a nearly unlimited lifespan and will keep any bare wires safely insulated.
Copper-clad aluminium wire is occasionally used, allowing easier winding, along with a useful reduction in coil mass compared to copper. Anodized aluminium flat wire may be used, providing an insulating oxide layer more resistant to dielectric breakdown than enamel coatings on other voice coil wire. This creates lightweight, low-inductance ...