Insulated wire has been used since the 1800s for many electrical and communication purposes. The first system to use insulated wiring was the Telegraph. This wire was used to increase connectivity and prevent oxidation. 

Insulated wires are made of copper, aluminum, or nickel chromium wires within a nonconductive material, such as a plastic or rubber. This kind of wiring is ideal for areas where corrosion is a concern as well as for home safety. Insulated is most commonly used in the automotive industry, high-voltage uses, and appliances. If you are also in need of these kinds of wire then you can hop over here to buy them online.

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The automotive industry uses primarily tinned copper wire with varying thicknesses depending on the specific wire's use. For instance, TWP is ideal for tight spaces in automotive parts. It can withstand temperatures between -40 and +90 degrees Celsius and has a gauge of 10 to 22 AWG. SXL, on the other hand, is better for circuits that require a greater heat resistance.

Braided silicone is the best choice for high voltage and high temperatures. This braidless silicone is flexible enough to withstand temperatures up to 150°C. It comes in gauges ranging from 2 to 22 AWG. It is made of tinned copper, but it can also be available in silver-plated copper, aluminum wire and pure nickel.

This type of insulated wiring can be used for electronics that require higher temperatures, such as motors, transformers, ballasts and solenoids, as well as other devices. There are many options, including SIS that can withstand temperatures up to 90° Celsius and 600 volts.