Copper-clad aluminum (CCA) wire is the standard material for the center conductor in the cable television (CATV) industry. Since, in this high-frequency application, the signal travels in the skin of the conductor, CCA wire is substituted for copper wire on a size-for-size basis. This results in a substantial cost savings because CCA’s lighter weight (37% of that of copper) provides 2.7 times the feet of cable per pound than pure copper. Additionally, CCA’s lighter weight permits the use of a lower density dielectric, reducing the amount of cable attenuation resulting from the higher density material required by copper wire.

More pliable than copper, CCA is easily formed during installation, minimizing the chance of impedance distortion, caused by dislocation of the center conductor at bends and traps. Cable failure due to conductor pull out or buckling is also greatly reduced.

Copper-clad steel (CCS) is the wiring of choice for CATV and telephone aerial drop cable, which is growing in use as telephone service expands in emerging nations. Insulated in pairs, CCS provides durability, conductivity, economy, and long life. It also allows for efficient installation and proven performance in remote locations where reliability is a key consideration. Because of its high strength, fatigue resistance, economics, good conductivity, and longevity, CCS wire safely withstands storm loads and other hazards to which drop wires are subjected.