You must equip all elevators with brakes designed to engage mechanically and release electrically.
(1) Brakes must be located on the final drive of all elevator machines.
(2) The brake actuating circuit must be so designed that interruption of power by slack cable switch, control switch, and limit switches actuate the brake.
(3) The brakes must actuate under short circuit, phase failure, or reverse phase conditions.
[Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050,
49.17.060. WSR 15-24-102, § 296-56-60159, filed 12/1/15, effective 1/5/16. Statutory Authority: RCW
49.17.040 and
49.17.050. WSR 86-03-064 (Order 86-02), § 296-56-60159, filed 1/17/86; WSR 85-01-022 (Order 84-24), § 296-56-60159, filed 12/11/84.]