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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 296-96-13143. What structural requirements apply to hoistway gates and doors?
Latest version.
- (1) Gates may be constructed of wood slat, steel wire grill, expanded metal or solid material provided that all openings reject a two-inch diameter ball and resist a two hundred fifty pound horizontal thrust.(a) Steel wire and expanded metal gates must be constructed of at least No. 13 U.S. gauge steel.(b) Wood slat gates must have slats at least two inches wide and one-half inch thick, nominal size.(c) Solid material gates must be constructed of at least one-eighth inch reinforced sheet steel or one-half inch plywood.(2) Gates may be horizontal swinging, vertical or horizontal sliding or biparting types, and must:(a) Span the full width of the elevator car;(b) Extend from one inch above the landing floor to at least six feet above it;(c) Not swing into the hoistway; and(d) Be equipped with interlocks or mechanical locks and electric contacts that prevent the gate from opening when a car is away from a landing.(3) Hoistway doors must be closed before the car can leave the landing. Once the car leaves the landing, the door must be latched so that it will not open when the elevator is not at the landing.