All cars suspended or operated from overhead machinery shall be equipped with an approved car safety capable of stopping and holding the car while carrying its rated load.
- (1) Car safeties shall be mechanically operated and not be affected by any interruptions in the electrical circuit.
- (2) Car safeties and governor controlled safeties shall operate automatically and the control circuit shall be interrupted in the event the safeties set.
- (3) All electric manlifts shall be equipped with an overspeed governor that shall not exceed 0.889 m/s (175 ft./min.) and shall deenergize the brake control and motor drive circuits simultaneously when the car safety mechanism is activated.
- (4) Winding drum type machines shall have a manual-reset slack rope device that interrupts the drive motor and brake circuits.
[Statutory Authority: RCW 70.87.030. WSR 23-17-141, § 296-96-24543, filed 8/22/23, effective 10/2/23. Statutory Authority: Chapter 70.87 RCW. WSR 21-18-096, § 296-96-24543, filed 8/31/21, effective 10/1/21; WSR 18-18-070, § 296-96-24543, filed 8/31/18, effective 10/1/18.]