Which method protects against the hazard of the line becoming energized?
A. Protective grounding
B. Phase-to-ground
C. Insulation covering conductors
D. Service Drop
Answer (2)
The selected method that protects against the hazard of an energized line is A. Protective grounding, which provides a safe path for stray electricity to reduce shock risks. Other options, while relevant in electrical safety, do not primarily serve this protective function. Overall, grounding ensures safety for both equipment and individuals by steering electricity safely away from them.
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In the context of safety practices in electrical engineering and construction, the method that protects against the hazard of the line becoming energized is protective grounding . This is a safety measure used to prevent electrical shock and equipment damage by ensuring a safe path for stray electrical current.
Protective Grounding :
This involves connecting electrical circuits or equipment to the ground to protect users from shock and keep potential differences within safe limits.
If a line inadvertently becomes energized—either due to a fault or a malfunction, protective grounding ensures that this energy is safely discharged into the earth, minimizing the risk of electric shock or fire.
Phase-to-Ground :
This term usually refers to a fault condition where an electrical phase wire contacts the ground. This is a condition that protective grounding aims to mitigate.
Insulation covering conductors :
While insulation is essential for preventing accidental contact with conductors, it does not actively protect against lines becoming energized.
Service Drop :
A service drop is the overhead electrical line from a utility pole to a customer's building. It itself does not protect against energization; its main purpose is to deliver electricity to a location.
Overall, protective grounding is a critical safeguard used in electrical systems to protect people and equipment by providing a safe path for electricity to follow in the event of an electrical fault.
