Pennsylvania Code (Last Updated: April 5, 2016) |
Title 34. LABOR AND INDUSTRY |
PART I. Department of Labor and Industry |
Chapter 7. Elevators, Lifts, Escalators, Dumbwaiters, Hoists andTramways |
SubChapter D. STAGE, ORCHESTRA, ORGAN CONSOLE AND LUMBER ELEVATORS |
Section 7.115. Electrical equipment
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(a) A suitably lighted room shall be provided outside of the shaftway for the motor controller and brake unless the motor and controller are placed in the pit, in which case stone or masonry piers or columns shall be provided to take sufficiently the impact of a full-loaded car.
(b) When the motor and controller are located in a shaftway pit or in a pit adjacent to the hoist, access to such pit shall be provided by means of a door entirely below the bottom of the platform when the platform is at its lowest limit of travel.
(c) Terminal limit switches located in the shaftway, or a stop motion device on the operating machine, shall be provided and arranged to automatically bring the platform to rest as it approaches either terminal landing.
(d) Final limit switches shall be provided at the top and bottom of the shaftway arranged to cut off the current and stop the platform if it runs by the terminal limit switches.