True or False: Manufacturers may require that high-voltage portions for lighting enclosures be mounted in the upper right hand corner of an enclosure to conform with the NEC requirements to keep low and high-voltage conductors separate?

• A. True
• B. False
• C. Not sure
• D. Cannot be determined

Answer: (A)

Keeping different voltage systems apart inside an enclosure is essential to prevent arcing and unintended current paths. The NEC requires that high- and low-voltage conductors be kept separate, using barriers or designated compartments so they cannot influence or touch each other. Because of these separation rules, manufacturers sometimes design their enclosures so the high-voltage portion is placed in a specific area—often a top or a particular section—and they may require this placement in their installation instructions to maintain the necessary clearances and creepage distances. This helps ensure the internal layout supports safe separation and easier wiring. The NEC itself doesn’t dictate that high-voltage parts must be in the upper right corner, but following a manufacturer’s recommended mounting location can help ensure compliance with the separation requirement. So the statement is true.