What is the purpose of a rubber blanket in electrical work?

The purpose of a rubber blanket in electrical work is primarily to provide insulation against voltage. Rubber is an excellent insulator, which means it can help prevent electrical current from flowing through it, thereby protecting workers who might come in contact with live parts or equipment. When working on or near energized equipment, rubber blankets offer a barrier against electrical shock.

While rubber blankets can cover equipment of varying sizes and shapes, the main reason for their use in electrical environments is their insulating properties. Protecting against electrical hazards is crucial for the safety of linemen and electricians, making the insulation they provide the fundamental purpose of these blankets. The other options, while potentially relevant to a variety of safety equipment and practices, do not align with the primary role of rubber blankets in electrical work.