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Washington Administrative Code (Last Updated: November 23, 2016) |
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Title 296. Labor and Industries, Department of |
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Chapter 296-870. Powered platforms. |
Section 296-870-70030. Davits.
Latest version.
- (1) You must make sure all davit installations are designed and installed to have a stability factor against overturning of not less than four.(2) You must make sure access to and egress from the working platform of roof rigged davit systems:(a) Is from a safe surface; and(b) Does not require persons to climb over a building parapet or guardrail.(3) You must make sure the working platform of a roof rigged davit system has wheels, casters, or a carriage for traversing horizontally.(4) You must make sure ground rigged davit systems meet all of the following:(a) The point of suspension is not higher than three hundred feet (91.5 m) above a safe surface;(b) A tie-in guide stabilization system is provided;(c) Access to and egress from the working platform is from a safe surface below the point of suspension.(5) You must make sure a rotating davit of a ground rigged davit system requires a horizontal force of forty pounds (177.9 n) or less per person to initiate a rotating movement.(6) You must make sure a transportable davit or part of a davit weighing more than eighty pounds (36 kg) has means provided for its transport that keep the center of gravity of the davit at or below thirty-six inches (914 mm) above the safe surface during transport.(7) You must make sure a transportable davit is provided with a pivoting socket or base that allows the davit to be removed or inserted:(a) At a position of not more than thirty-five degrees above the horizontal; and(b) With the complete davit inboard of the building face.(8) You must make sure means are provided to lock a transportable davit to its socket or base before it is used to suspend the platform.