1. (a) The controller's horsepower rating is not lower than the horsepower rating of the largest motor.

2. (b) Only one motor is operated at one time.

   (Title 24, Part 3, Section 610-51.)

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:

Note: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code; and Section 18943(c), Health and Safety Code.

History

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).