NEC Commercial Electrical Practice Test

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Prepare for the NEC Commercial Electrical Test with multiple choice questions each with detailed explanations. Study efficiently to excel in your exam!

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How many inches of clearance must surface-mounted incandescent luminaries have from the nearest storage point in clothes closets?

6 inches
12 inches
18 inches
24 inches

The correct answer is: 12 inches

Surface-mounted incandescent luminaires must maintain a clearance of 12 inches from the nearest storage point in clothes closets to ensure safety and compliance with electrical code requirements. This distance is established to prevent potential fire hazards that could arise from the heat generated by incandescent bulbs. Insufficient clearance could lead to items stored in the closet, such as clothing and other materials, coming into contact with the heat and potentially igniting. Maintaining this specific distance allows for a safe environment, mitigating risks associated with overheating and ensuring that the luminaries function effectively without obstruction. This guideline is critical in promoting best practices in electrical installation and safety within residential spaces.