For what reason are electrical wires insulated?

Electrical wires are insulated primarily to protect against short circuits and electrical shock. Insulation serves as a barrier that prevents the flow of electricity from the wire to unintended surfaces or individuals. Without insulation, exposed wires could come into contact with each other or with conductive materials, leading to short circuits, which can cause equipment failure, electrical fires, or other hazardous situations.

Moreover, insulation is vital for safety, as it ensures that people or animals do not accidentally touch live wires, which could result in severe electrical shock or even electrocution. The materials used for insulation are typically chosen for their ability to withstand electrical stress and environmental conditions, ensuring durability and safety in various applications.

Although there are other factors to consider in electrical wiring, such as weight and color identification, the fundamental purpose of insulation is directly tied to safety and preventing electrical hazards.