When an area that permits passage of personnel is within 2 feet of a personnel hoist, what is the allowable minimum hoistway enclosure height?

The correct minimum hoistway enclosure height when the area allowing personnel passage is within 2 feet of a personnel hoist is 1980 mm. This specific height is established to ensure sufficient clearance and safety for individuals in proximity to the hoist.

The requirement reflects safety standards aimed at preventing accidental contact with moving components of the hoist, and it aligns with regulations that govern the design of elevating devices. An enclosure height of 1980 mm provides adequate protection while allowing for effective operation of the hoisting equipment. Proper enclosure heights are crucial to minimize risks associated with operating and maintaining personnel hoists, as well as ensuring that workers can perform their responsibilities safely without the hazard of injury from moving parts or equipment.

In contrast, other heights listed do not comply with the designated safety standards for personnel hoists. Lower heights may compromise safety, while excessively high requirements could be impractical for installation and use, demonstrating the balance required in regulatory designations. Understanding these regulations is crucial for professionals working with elevating devices.