Washington Administrative Code (Last Updated: November 23, 2016) |
Title 296. Labor and Industries, Department of |
Chapter 296-96. Safety regulations and fees for all elevators, dumbwaiters, escalators and other conveyances. |
Section 296-96-13145. What structural requirements apply to elevator cars?
Latest version.
- Elevator cars must be fully enclosed to the car height or to a height of at least six feet six inches, whichever is greater.(1) If constructed of solid materials, cars must be capable of withstanding a horizontal thrust of seventy-five pounds while deflecting no more than one-quarter inch.(2) If constructed of perforated materials, all openings must be capable of rejecting at least a one-inch diameter ball.(3) Cars frames must be of substantial metal or wood construction.(a) Metal frames must have a safety factor of four.(b) Wood frames must have a safety factor of six.(c) Wood frames must be constructed with gussets and bolts secured with large washers, lock washers and nuts.(4) Cars must have platforms whose inside dimensions do not exceed thirty inches on each side (six and one-quarter square feet area).(5) Cars must have substantial protective tops. These tops:(a) May have hinged front halves;(b) May be made of No. 9 U.S. wire-gauge screen, No. 11 gauge expanded metal, No. 14 gauge sheet steel, or one-quarter inch or heavier plywood.(c) If made of wire screen or metal with openings, must reject a one-half inch diameter ball.