Copper wire is an electrical conductor that is used in all kinds of electrical applications. It can be found in homes, offices, factories, and other industrial facilities. The conductor is made from either single or multiple strands of pure copper that are insulated with various materials such as polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polyurethane (PUR), or polytetrafluoroethylene (PTFE). This insulation protects against short circuiting and the risk of an electrical fire caused by arcing between wires in a circuit.
Copper is a soft metal that conducts electricity very well, which makes it ideal for use in electrical projects. However, some copper wire may also be made of copper alloys. The most common alloy for electrical wires is tin-plated copper which features higher corrosion resistance than pure, uncoated copper.
Copper wire has a high conductivity rating - about 90% of that of silver - which makes it an ideal material for use in electronics. Copper also has a low resistance compared to other metals like aluminium or steel which makes it ideal for high-powered applications like power lines and low-voltage wiring.