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Fault-Current Path to Earth

What is the primary function of grounding in an electrical installation?
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Answer & Explanation
Correct AnswerA. To provide a safe route for fault current to the earth

Quick Explanation

Protective grounding provides a low-impedance path for fault current so protective devices can operate quickly and exposed conductive parts remain near earth potential. Its primary purpose is safety.

Fault-Current Path to Earth explanatory diagram

Detailed Explanation

Correct Answer

A — To provide a safe route for fault current to the earth

Explanation

Protective grounding provides a low-impedance path for fault current so protective devices can operate quickly and exposed conductive parts remain near earth potential. Its primary purpose is safety.

Key Concept

Fault-Current Path to Earth

Exam Point

Grounding is for fault-current safety, not normal load operation.

Quick Trick

Grounding is for fault-current safety, not normal load operation.

Exam Tip

Grounding is for fault-current safety, not normal load operation.

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