Who is allowed to perform tasks on electrical equipment where an electrical hazard exists?

The correct choice is that qualified persons are the ones allowed to perform tasks on electrical equipment where an electrical hazard exists. A qualified person is defined as someone who has the skills and knowledge related to the construction and operation of electrical equipment and installations. This individual is trained and knowledgeable enough to recognize and avoid the hazards involved in working with that equipment.

It is crucial to ensure that only those who have the appropriate training and understanding of electrical safety practices engage in such potentially dangerous work. Qualified persons are familiar with safety standards and procedures that help prevent electrical shocks, burns, or other electrical accidents during tasks on energized equipment.

The other groups mentioned lack the necessary training or qualifications; therefore, they would not be considered suitable for such tasks. Only individuals with a thorough understanding of electrical safety regulations and the specific risks associated with the equipment in question can safety perform these tasks.