What is a major function of insulation in electrical cables?

Insulation in electrical cables serves several critical functions, and one of its primary roles is to protect against electrical shocks. This is achieved by providing a non-conductive layer that surrounds the conductive materials within the cable. The insulation prevents accidental contact with live conductors, which could result in dangerous electric shocks to individuals working near or with electrical systems.

By maintaining a barrier between the conductive parts and the environment, insulation ensures that the electrical current is confined within the wires, reducing the risk of harm to people or animals. This safety measure is essential for minimizing exposure to potentially lethal voltages and is a fundamental aspect of electrical design and installation.

While other functions, such as preventing short-circuiting, are also important, the primary concern for insulation in many applications is to ensure the safety of users by avoiding electrical shock hazards.