What is the requirement for luminaires with no ready means for grounding attachment?

Luminaires that lack a ready means for grounding attachment must not contain any conductive parts. This requirement is in place to ensure safety and reduce the risk of electric shock. Conductive parts can potentially become energized if a fault occurs, which could pose significant hazards to users. By specifying that there should be no conductive parts in such luminaires, the regulation aims to protect individuals from accidental contact with live electrical components.

This stipulation is particularly crucial in installations where a grounding system may not be readily available or feasible, ensuring that the luminaires operate safely without the risk associated with grounding issues. The design of such luminaires typically utilizes insulating materials that do not conduct electricity, thus meeting this safety criterion effectively.