Load limit device settings should be verified by a static test using test loads of what percentage of applicable rating as per ASME B30.3?

Load limit device settings are crucial for ensuring the safe operation of tower cranes, and they must be verified with proper testing. According to ASME B30.3, the requirement for a static test specifies that the test loads should be between 102.5% and 110% of the applicable rating. This range ensures that the load limit devices are functioning correctly under conditions that exceed the normal operational limits, thereby helping to prevent overload situations during actual use.

Testing within this percentage range allows for an adequate safety margin while providing assurance that the equipment can effectively handle loads greater than its rated capacity without compromising safety. This procedure is vital for ensuring that operators can rely on the load limit devices to protect against excessive loads that could lead to accidents or equipment failure.