When is a full load safety test mandated on a modernization project?

A full load safety test is mandated on a modernization project primarily when there are modifications made to the speed, capacity, or control of the elevating device. This requirement is in place to ensure the safety and reliability of the elevator after significant changes have been made that could impact its operational dynamics.

Modifying the speed or capacity alters how the elevator performs under load. Similarly, changes to the control systems may affect the way the elevator responds during operation, including starting, stopping, and handling loads. Conducting a full load safety test under these circumstances is critical to guarantee that the elevator can handle its intended load safely and operates as designed without malfunctioning.

The other choices do not encompass the broader implications of modernization. Minor repairs may not require a full load safety test, as they typically do not impact the fundamental operation of the elevator. Replacing fixtures generally pertains to cosmetic or user interface changes rather than modifications to speed, capacity, or control. Similarly, while a major inspection is important, it does not specifically necessitate a full load safety test unless it coincides with other significant modifications. Therefore, identifying when a full load safety test is required centers mainly around substantial changes that affect how the elevator operates.