Why is it important to use the lock and tag system for electricity?

Using the lock and tag system for electricity is crucial because it is designed primarily to prevent accidental activation of electrical circuits and equipment, which can pose significant risks, including electric shock or injury. When a lock and tag system is properly implemented, it ensures that equipment is de-energized and cannot be turned on while it is being serviced or repaired. Workers can visually identify that the equipment is under maintenance and that they should not attempt to operate it. This protocol enhances safety by creating a clear and robust barrier against inadvertent re-energizing of systems that are being worked on, thereby protecting workers from potential hazards associated with electricity.

In contrast, the other options don't capture the primary purpose of the lock and tag system. Indicating when electricity should be restored, familiarizing workers with systems, or keeping records of electrical usage address different operational aspects rather than focusing on worker safety, which is the primary goal of the lock and tag protocol.