LMS Substation 3-2 Practice Test 2025 - Free LMS Substation Practice Questions and Study Guide

Question: 1 / 420

What is a key recommendation regarding personal protective ground during maintenance work in a substation?

It should be connected randomly

It should be kept as far from the worksite as possible

It should be connected to the grid as close to the worksite as possible

Connecting personal protective ground to the grid as close to the worksite as possible is crucial for ensuring the safety of personnel working in a substation. This practice minimizes the potential difference that can occur between the worksite and any other grounds in the vicinity, reducing the risk of electric shock. By placing the ground connection as close as possible to where maintenance is performed, the grounding system effectively reduces the chance that a worker may inadvertently encounter a dangerous voltage during their tasks.

This approach also helps ensure that any fault currents are more effectively directed to the ground, preventing their passage through the bodies of workers, which could occur if the grounding were inadequate or distant from the worksite. Proper grounding techniques are a vital aspect of workplace safety in substations, as they play a pivotal role in mitigating electrical hazards during maintenance operations.

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It does not need to be connected during maintenance

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