New York State Master Electrician Practice Exam

Question: 1 / 400

What is the required working space dimension for access to live parts operating at 300V?

3 feet

4 feet

The required working space dimension for access to live parts operating at 300V is 3 feet. This clearance is established by the National Electrical Code (NEC), which provides guidelines to ensure safety while working on or near electrical equipment. The NEC mandates this minimum clearance to provide sufficient space for safe electrical work, reducing the risk of accidental contact with live components and the potential for electrical shock or arc flash incidents. Thus, maintaining this space is critical for the safety of electricians and anyone working near energized equipment.

If there was confusion regarding the listed answer choices, it's essential to remember that safety regulations are designed to protect workers in various voltage scenarios, and understanding these clearances is fundamental for compliant electrical installations and maintenance.

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5 feet

6 feet

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