What safety measure must an operator follow prior to working on electrical equipment?

Lock out Tag out procedures are a critical safety measure that must be followed prior to working on electrical equipment to prevent accidental energization. This process involves isolating the source of energy, such as electrical switches or circuit breakers, and then applying a lock and tag to ensure that no one can inadvertently turn the equipment back on while work is being performed. This is crucial because unexpected restoration of power can lead to severe injuries or fatalities.

By properly implementing the lockout/tagout protocol, operators can protect themselves and their coworkers from the risks associated with electrical work. This adherence to safety standards ensures that all personnel working on or near electrical equipment are aware of the dangers and that safety measures are firmly in place before beginning any tasks.

The effectiveness of lockout/tagout procedures is well-established in occupational safety practices, making it the best approach to ensure a safe working environment when dealing with potentially hazardous electrical equipment.