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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 296-96-23162. What requirements apply to hoistway door unlocking devices?
Latest version.
- Hoistway door unlocking devices or hoistway access switches must be provided on all elevators at one upper landing to permit access to the top of the car and at the lowest landing if this landing is the normal point of access to the pit. Hoistway door unlocking devices may be provided at all landings for emergency use.(1) Hoistway door unlocking devices must conform to the following specifications:(a) The device must unlock and permit the opening of the hoistway door from the access landing regardless of the position of the car.(b) The device must be designed to prevent unlocking the door with common tools.(c) The operating means for unlocking the door must be available to and used only by inspectors, elevator maintenance and repair personnel, and qualified emergency personnel.(d) The unlocking-device keyway must be located at a height no greater than 6 feet 11 inches above the floor.(2) Hoistway access switches must conform to the following specifications:(a) The switch must be installed only at the access landings.(b) The switch must be installed adjacent to the hoistway entrance at the access landing with which it is identified.(c) The switch must be of the continuous-pressure spring-return type and must be operated by a cylinder-type lock having not less than five-pin or five-disk combination with the key removable only when the switch is in the "off" position. The lock must not be operable by any key which will operate locks or devices used for other purposes in the building. The key or combination must be available to and used only by inspectors and elevator maintenance and repair personnel.(d) The operation of the switch at either access landing must permit and may initiate and maintain movement of the car with the hoistway door at this landing unlocked or not in the closed position, and with the car door or gate not in the closed position, subject to the following:(i) The operation of the switch must not render ineffective the hoistway door interlock or electric contact at any other landing.(ii) The can must not be operated at a speed greater than 150 feet per minute.(iii) For automatic and continuous-pressure operation elevators: Landing operating devices of continuous-pressure operation elevators and car and landing operating devices of automatic operation elevators must first be made inoperative by means other than the access switch; and power operation of the hoistway door and/or car door or gate is inoperative.(iv) Automatic operation by a car-leveling device is inoperative.(v) The top-of-car operating device is inoperative.(vi) The movement of the car initiated and maintained by the upper access switch must be limited in the down direction to a travel not greater than the height of the car crosshead above the car platform, and limited in the up direction above the upper access landing to the distance the car apron extends below the car platform. Where electrically operated switches, relays, or contractors are used to render inoperative the hoistway-door interlock or electric contact or the car door or gate electric contact, the control circuits must be arranged to conform to the requirements of WAC 296-96-23221 and in addition, to render the normal car and hall operation ineffective in any such switch, relay, or contractor fails to function in the intended manner.
Rules
296-96-23221,