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What is the grounding requirement for central vacuum outlets regarding non-current carrying metal parts?
They are required to be insulated
They are required to be connected to an equipment grounding conductor
They are not required to be grounded
They can be connected to any neutral conductor
The correct answer is: They are required to be connected to an equipment grounding conductor
The grounding requirement for central vacuum outlets regarding non-current carrying metal parts is that they must be connected to an equipment grounding conductor. This is important because it ensures safety by providing a path for potential fault currents, helping to prevent electric shock. Non-current carrying metal parts, if not properly grounded, can become energized through accidental contact with live wires or components, posing a significant safety hazard. Connecting these parts to an equipment grounding conductor provides a reliable way to safely dissipate electrical faults to the ground, reducing the risk of electrical shock or fire. Proper grounding practices are essential in electrical installations as they improve the overall safety and reliability of the system. This requirement aligns with the National Electrical Code (NEC) standards aimed at protecting individuals and property from electrical hazards in residential and commercial settings.