How is a Class 1 (yearly) buffer test performed?

A Class 1 (yearly) buffer test is designed to evaluate the performance of a buffer system. Conducting this test at a slow speed allows for a more controlled environment, enabling precise measurements of the buffer's ability to return to its starting position within the specified time frame. This time limit ensures that the buffer can effectively absorb energy and perform its function under typical operating conditions.

In this case, the requirement that the buffer must return in 90 seconds indicates a standard for the operational efficiency and reliability of the buffer system over an extended duration. The slower speed is beneficial because it reduces the potential for equipment strain and ensures that the test assesses the buffer's effectiveness rather than merely its maximum performance capabilities. This is critical for understanding how the equipment will behave under regular conditions, contributing to long-term reliability and safety.