What is the linkage process of speed limiter safety clamp in detail?
When the elevator speed exceeds the rated speed 115% down, the speed limiter electrical switch action, cut off the control circuit power, so that the car stopped.
If the car did not stop to continue down more than 125% rated speed, speed limiter action by mechanical device, safety clamp rod speed limiter for hoist rope, safety clamp switch; if the car continues downward, safety gear wedge brake firmly on the rail, forcing the car to stop running.
The safety tongs and speed limiter switch is short, then the elevator is free fall, see if the safety tongs can stick the guide rail, and observe the distance of the safety tongs, it should be within 1 meters
