What type of safety line should be attached to a safety harness when working with voltages greater than 300 V?

When working with voltages greater than 300 V, it is crucial to use a non-conducting safety line or its equivalent. This is because conductive materials, such as steel safety cables or conductive wires, pose a significant risk of electrical shock in the event of contact with live electrical components. A non-conducting safety line minimizes the risk of electrical conduction, thereby enhancing safety for workers who are exposed to high voltages.

Using a regular climbing rope would also be inappropriate since standard climbing ropes are not designed to resist electricity and could lead to dangerous situations. Therefore, employing non-conductive materials for safety lines in these circumstances is essential to ensure the safety and protection of the worker against electrical hazards.