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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 296-96-07060. What types of bumpers and buffers must be installed on inclined private residence elevators?
Latest version.
- (1) If spring or equivalent type buffers are not being used and rated speeds do not exceed 50 feet per minute, solid bumpers must be installed. Solid bumpers must:(a) Be built of wood or other suitable resilient material;(b) Have the ability to resist deterioration from weather;(c) Have sufficient strength to withstand, without failure, the impact of a descending car carrying its rated load or counterweight and traveling at 115 percent of its rated speed.(2) Spring type buffers must be installed when speeds exceed 50 feet per minute. Spring buffers must:(a) Be built with a minimum stroke of 3/4 inch and with a maximum stroke of 1 1/2 inches;(b) Not fully compress when struck by a car carrying its rated load or counterweight and traveling at 115 percent of its rated speed.(3) Inclined private residence elevators are not required to have bumpers and buffers except when obstructions are encountered.