At what speed must oil buffers be utilized in elevators?

Oil buffers in elevators are designed to absorb the impact of descending elevators during emergencies or concerning situations. The correct threshold for the utilization of oil buffers is based on elevator speed. The requirement for oil buffers to be employed states that when the elevator speed exceeds 200 feet per minute (fpm), oil buffers are necessary to ensure the safe deceleration of the elevator in the event of overspeed or other emergencies.

The design and implementation of oil buffers contribute to the overall safety features of high-speed elevators, allowing for a controlled stop and minimizing the risk of equipment damage or injury. Once an elevator operates below this threshold, alternative systems such as spring buffers may suffice, as the kinetic energy involved at lower speeds is less demanding. Thus, oil buffers become essential for elevators traveling faster than the specified limit to maintain operational safety and efficiency.