Insulators are a type of insulation control that play a crucial role in overhead transmission lines. In the early years, insulators were commonly used on utility poles. They gradually evolved to include many disc-shaped insulators hung at one end of high-voltage transmission towers to increase the creepage distance. Typically made of glass or ceramic, they are known as insulators. Insulators should not fail due to various mechanical and electrical stresses caused by changes in environmental and electrical load conditions. Otherwise, they would not serve their significant purpose and could damage the entire line's usability and operational lifespan.