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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 296-96. Safety regulations and fees for all elevators, dumbwaiters, escalators and other conveyances. |
Section 296-96-05040. What requirements apply to a hoistway that does not extend to the lowest levels of a building or structure?
Latest version.
- If the space directly below the hoistway is accessible, the following requirements apply:(1) All lift counterweights must have safeties.(2) All cars and counterweights must have either spring or oil buffers.(3) Spring buffers must not fully compress when struck by a car carrying its rated load or by the counterweights when they are moving at the following speeds:(a) For safeties operated by a governor, the tripping speed of the governor is the maximum striking speed.(b) For safeties not operated by a governor, 125 percent of the rated speed is the maximum striking speed.(4) Car and counterweight-buffer supports must be able to withstand any impact upon the buffer (without permanent deformation) while occurring at the following speeds:(a) For safeties operated by a governor, the tripping speed of the governor at the rated capacity is the maximum impact speed.(b) For safeties not operated by a governor, 125 percent of the rated speed is the maximum impact speed.