1.Application;
Copper-clad steel (CCS), also known as copper-covered steel orthe trademarked name Copperweld is a bi-metallic product, mainlyused in the wire industry that combines the high mechanicalresistance of steel with the conductivity and resistance tocorrosion of copper.
It is mainly used for grounding purposes, drop wire of telephonecables, and inner conductor of coaxial cables, including thinhookup cables like RG174, and CATV cable.
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2.Uses
Grounding, union of ground rods to metallic structures, meshes,substations, power installations and lightning arrestors. Thismaterial has proven its aptitude for these purposes. More than 60years of installations all around the world certify the excellenceof this type of installation.
3.Advantage
AdvantagesSince the outer conductor layer is low-impedancecopper, and the center is higher impedance steel, the skin effectgives copper-clad RF transmission lines impedance at high ACfrequencies similar to that of a solid copper conductor.
Tensile strength of copper-clad steel conductors is greater thanthat of ordinary copper conductors permitting greater span lengthsthan with copper.
Another advantage is that smaller diameter copper-clad steelconductors may be used in coaxial cables, permitting higherimpedance and smaller cable diameter than with copper conductors ofsimilar strength.
Due to the inseparable union of the two metals, it deters theftsince copper recovery is impractical and thus has very little scrapvalue.
Installations with copper-clad steel conductors are generallyrecognized as fulfilling the required specifications for a goodground. For this reason it is used with preference by utilities andoil companies when cost is a concern.
4. Standards
International Standard: ASTM B227-04; ASTM B452-1993, BS4087:1989
5.Technical Data
1). International Standard: ASTM B227-04; ASTM B452-1993, BS4087:1989
2). Diameter: 0.1mm-5.2mm
3). Conductivity: 15%, 18%, 20%, 30%, 40%
4). Tensile Strength: 275Mpa-1250Mpa
5). Elongation: 1%-25%
6). Packing: By reels
