R 408.16542 Mill stopping limits.

Rule 6542. A mill, regardless of roll size or roll arrangement, shall be stopped by braking equipment within a distance, measured in inches of surface travel of the faster roll, of not more than 1 1/2% of the peripheral no-load surface speed of the roll as determined in feet per minute. (See figure 2) FIGURE 2 MAXIMUM ALLOWABLE MILL STOPPING DISTANCES FOR VARIOUS ROLL SPEEDS All measurements on mills shall be taken with the rolls running empty at maximum operating speed. Stopping distances shall be expressed in inches of surface travel of the faster roll from the instant the emergency stopping device is actuated.