What method can be used to ensure that only authorized personnel work on high-voltage systems?

Using lockout/tagout procedures and access control is essential for ensuring that only authorized personnel work on high-voltage systems. Lockout/tagout (LOTO) procedures involve placing locks and tags on energy-isolating devices to prevent accidental energization during maintenance or service work. This method is crucial in creating a safe work environment because it clearly identifies that a system is not operational and is in a secured state while maintenance is being performed.

In addition to LOTO procedures, access control mechanisms help restrict entry to areas where high-voltage systems are located. This can include physical barriers, keycard access, or security personnel who monitor and control who enters these hazardous areas. By combining both strategies, organizations can significantly reduce the risk of unauthorized access, thus protecting both workers and the integrity of the electrical systems.

Other choices, like relying solely on posted signage, may inform personnel of safety requirements but do not provide the necessary enforcement to prevent unauthorized work. Regular staff meetings and training on unrelated topics, such as customer service, do not address the critical safety protocols needed for handling high-voltage systems effectively.