How can one detect physical damage to insulation?

Detecting physical damage to insulation is best accomplished through regular inspection for visible signs of damage. This method involves visually examining the insulation for any indications of wear, such as cracks, cuts, abrasions, or discoloration, which can signify a compromise in the insulating material's integrity.

Visual inspections are crucial because physical damage often manifests as noticeable changes in the insulation. Inspectors can spot these issues before they lead to more significant problems, such as electrical faults or failures. This proactive approach helps in maintaining the safety and functionality of electrical systems.

While measuring resistance, checking electrical current flow, and applying thermal tests can provide valuable insights into the performance of the insulation, they typically do not directly identify physical damage. These methods primarily focus on the electrical properties and behavior of the insulation, which may not reveal the presence of physical flaws that are visible upon inspection.