Who is responsible for isolating the MEP 12 from the PDC?

The responsibility for isolating the MEP 12 from the PDC primarily falls on the electrical systems personnel due to their specialized knowledge and skills related to electrical systems and safety protocols. Electrical systems personnel are trained to handle the complexities of electrical isolation, ensuring that circuits and components can be safely worked on without risk of electrical shock or equipment damage. They understand the necessary safety procedures and can execute isolation techniques while adhering to relevant safety standards, such as Lockout/Tagout (LOTO) procedures.

The other options represent roles that may have responsibilities in their domains but do not possess the specific training required to manage electrical isolation tasks. For instance, while mechanical technicians focus on mechanical systems, safety officers are responsible for enforcing safety protocols but not for isolating electrical components directly, and control room operators oversee operations but may not have the requisite technical expertise to perform isolation. Thus, electrical systems personnel are the appropriate choice for this responsibility.