What types of hazards do protective grounds safeguard line workers from?

Protective grounds play a crucial role in safeguarding line workers by providing a safe path to divert electrical energy away from a worker and into the ground, thus minimizing the risk of electric shock or injury. The correct answer highlights that protective grounds are specifically designed to protect against static charges, accidental energizing of lines, and induced voltage.

Static charges can accumulate on objects and pose a risk during maintenance or repairs if not grounded properly. Accidental energizing refers to situations where a line that is thought to be de-energized is actually live, which can occur due to various factors such as equipment failure or human error. Protective grounding ensures that any unexpected energizing does not pose a risk to the worker. Induced voltage occurs when electrical fields are present near a conductor, potentially affecting nearby workers. By grounding the equipment or work area, the risk brought by these induced voltages is mitigated.

Other options involve hazards that protective grounds may not directly address. Overcurrent and short circuits are typically managed through fuses or circuit breakers rather than grounding methods. Ground faults and surge currents can imply conditions that may damage equipment rather than directly threatening worker safety without proper protective equipment. High temperature and arc flash are safety concerns that would require different protective measures, such as personal protective