Final answer:
In a rescue operation involving a high voltage electric system, the person in charge, usually an authorized person or a designated qualified electrician, is responsible for ensuring that electrical equipment is properly locked out and tagged.
Step-by-step explanation:
In a rescue operation involving a high voltage electric system, the responsibility for ensuring that electrical equipment is properly locked out and tagged lies with the person in charge of the operation, usually an authorized person or a designated qualified electrician. This person is responsible for following the established safety procedures and ensuring that all necessary lockout and tagout measures are implemented before any work is done on the electrical system.