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Copper wire is a single electrical conductor made of copper.  It can be insulated or non-insulated. A copper cable is a set of two or more copper wires bundled together in a sheath or sheath.  Copper wire and cables are used in the generation, transmission, distribution, telecommunications, el
Copper has been used in wires since the invention of the electromagnet and the telegraph in the 1820s.   The invention of the telephone in 1876 further fueled the need for copper wire as an electrical conductor. Copper is an electrical conductor in many classes of wire.  Copper wire i
The use of armor as a method of providing grounding for cable-powered equipment (a function technically known as the circuit protective conductor or CPC) is a matter of debate within the electrical installation industry. Sometimes the extra core inside the cable is designated as CPC (for example, in
In power distribution, armored cable is often referred to as steel wire armored cable (SWA), which is a hard-wearing power cable designed for mains power supply. It is one of many armored cables - including 11 kV cables and 33 kV cables - found in underground systems, power networks and cable ducts.
Modern power cables come in a variety of sizes, materials and types, each uniquely suited to its purpose.  In the industry, large single insulated conductors are sometimes referred to as power cables. The cable consists of three major parts: conductor, insulation layer, an