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Exception to subsection 3093.25(a): Where 8 x 19 steel ropes or 7 x 19 aircraft
cable are used, the required minimum diameter of drums and sheaves may be reduced
to 21 times the diameter of the rope.
(b) The factor of safety, based on the static load (the rated load plus the weight of the car, ropes, counterweights, etc.) to be used in the design of the driving machine and sheaves shall be not less than 8 for wrought iron and steel, and 10 for cast iron, cast steel and other metals.
(Title 24, Part 7, Section 7-3093.25)
Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
1. New section filed 7-22-86; effective thirtieth day thereafter (Register 86, No. 36).
2. Amendment of section heading filed 8-29-2001; operative 9-28-2001 (Register
2001, No. 35).