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What is Enamelled Wire
Enamelled wire has a very thin layer of insulation or enamel. The wire is typically copper or aluminum, while the insulation is either a thin varnish or a polyester or fiberglass yarn. Applications Enamelled wire is used in applications which require tight coils of wire, in applications such as inductors, motors, speakers, hard disk head actuators, or electromagnets. Most enamelled wire will be copper, but aluminum is also used in certain applications, such as large transformers and loudspeaker coils. There are numerous reasons that copper is the most widely used metal in enameled wire. Copper is the highest electrical conductivity of all non-precious metals. Because it has a lower conductivity than copper, aluminum wire requires a cross section that is 1.6 times larger for it to create the same current capability as a copper wire, making copper wire more energy efficient aluminum wire. Copper is also 300% stronger than aluminum, allowing it to withstand more extreme con...