What is a requirement for the operation of a special industrial elevator?

The requirement for the operation of a special industrial elevator is that it should operate only by means of push buttons. This approach ensures that the operator has direct control over the elevator's movements and can make precise decisions about when to initiate and stop the elevator. Push-button controls typically provide a straightforward interface that allows for easier operation, especially in an industrial setting where conditions may need to be assessed continuously and quickly.

Using push buttons also allows for consistent operation and compliance with safety protocols, as operators can maintain visual contact and situational awareness while operating the elevator. This is particularly important in industrial environments where safety and efficiency are paramount. In essence, the use of push buttons reflects a standard that enables safe and direct human intervention during the elevator’s operation.