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ASME A18.1-2014 pdf download

ASME A18.1-2014 pdf download.Safety Standard for Platform Lifts and Stairway Chairlifts.
combination mechanical lock and electric contact: a combina- tion mechanical and electrical device with two related but entirely independent functions, which are (a) to prevent operation of the driving machine by the normal operating device unless the door or gate is in the closed position (b) to lock the door or gate in the closed position and prevent it from being opened from the landing side unless the platform is within the specified distance from the landing compensating-rope sheave switch: a device that automati- cally causes the electric power to be removed from the driving-machine motor and brake when the compensat- ing sheave approaches its upper or lower limit of travel. contacts: see door or gate electric contact. control: the system governing the starting, stopping, direction of motion, acceleration, speed, and retardation of the moving member. controller: a device or group of devices that serves to control in a predetermined manner the apparatus to which it is connected. door or gate: the movable portion(s) of the platform or runway entrance that closes the opening providing access to the platform or landing. It consists of one or more panels that may be equipped with a vision panel. door or gate, manually operated: door or gate that is opened and closed by hand. door or gate, power-operated: a door or gate that is opened and closed by a door or gate power-operator. door or gate, self-closing: a manually operated door or gate that closes when released or a power-operated door or gate. door or gate closer: a device that closes a door or gate by means of a spring or gravity. door or gate electric contact: an electrical device, the func- tion of which is to prevent operation of the driving machine by the normal operating device unless the door or gate is in the closed position. door or gate power-operator: a device or assembly of devices that opens a door or gate by power other than by hand, gravity, springs, or the movement of the plat- form; and that closes them by power other than by hand, gravity, or the movement of the platform. driving machine: see machine, driving. emergency stop switch: a device that, whenmanually oper- ated, causes the lift to halt its motion. enforcing authority: see authority having jurisdiction. entrance hardware: all components of an entrance, exclu- sive of the frame, door panels, and locks, that are neces- sary to maintain the position of the panels within the assembly. 2 factor of safety: the ratio of the ultimate strength to the working stress ofa member under maximum static load- ing, unless otherwise specified in a particular rule. full passenger enclosure: an assembly inclusive of the plat- form top, minimum 2 000 mm (79 in.) tall walls, mini- mum 2 000 mm (79 in.) tall platform doors and platform floor. gate: see door or gate. governor: see speed governor. governor pull-retarding means: a mechanical means of developing a sufficient force in the governor rope to activate the platform or counterweight safeties or to trip the governor rope releasing carrier, where used. Such mechanical means include, but are not limited to, rope-gripping jaws, clutch mechanisms, and traction arrangements. governor pull-through tension (force): the magnitude of the tensile load developed in the moving governor rope after the governor rope-retarding means is actuated. inclined platform lift: a powered hoisting and lowering mechanism designed to transport mobility-impaired persons on a guided platform that travels on an incline. inclined stairway chairlift: a powered hoisting and low- ering mechanism that is guided, equipped with a seat, to transport seated passengers along stairways. inspection and tests acceptance: the initial inspection and tests of new or altered equipment to check for compliance with the applicable requirements. periodic: routine inspection and tests plus additional detailed examination and operation of equipment at specified intervals witnessed by an inspector to check for compliance with the applicable requirements. routine: the examination and operation of equipment at specified intervals by an inspector to check for compli- ance with the applicable requirements. installation: a complete platform lift or stairway chairlift, including all machinery and equipment necessary for its operation. installation, existing: an installation that has been com- pleted or is under construction prior to the effective date of this Standard. installation, new: any installation not classified as an existing installation by definition, or an existing plat- form lift or stairway chairlift moved to a new location subsequent to the effective date of this Standard. installation, placed out of service: an installation whose power feed lines have been disconnected from the machine disconnect switch.

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