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Each motor shall be provided with an individual controller.
EXCEPTION: No. 1: Where two or more motors drive a single hoist, carriage, truck, or bridge, they shall be permitted to be controlled by a single controller.
EXCEPTION: No. 2: One controller shall be permitted to be switched between motors provided:
(a) The controller's horsepower rating is not lower than the horsepower rating of the largest motor.
(b) Only one motor is operated at one time.
(Title 24, Part 3, Section 610-51.)
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943(c), Health and Safety Code.
1. Editorial correction filed 11-2-83 (Register 83, No. 45).
2. Amendment filed 8-27-86; effective thirtieth day thereafter (Register 86, No. 37).
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