ASME A18.1-2011 pdf free download.Safety Standard for Platform Lifts and Stairway Chairlifts
2.1.1 Runway Enclosure Provided
2.1.1.1 The runway shall be guarded by a solid enclosure extending from the lowest landing to a height of at least 1 100 mm (42 in.) above the uppermost land- ing. The enclosure shall withstand, without permanent deformation, a force of 550 N (125 lbf) applied on any 100 mm (4 in.) by 100 mm (4 in.) area. The interior of the runway enclosure shall present a smooth surface on all sides except where the platform enclosure walls extend to a minimum height of 2 000 mm (79 in.) above the platform floor.
2.1.1.2 The runway entrance shall be guarded at the upper landing by a door of unperforated construc- tion not wider than the platform plus 25 mm (1 in.). The door shall be self-closing and at least 1 100 mm (42 in.) high. The runway side ofthe door shall present a smooth surface. The door shall be located not more than 75 mm (3 in.) from the platform sill.
2.1.1.3 The runway entrances at all but the uppermost landing shall be guarded by unperforated self-closing doors not wider than the platform plus 25 mm (1 in.). The openings created in the runway by these doors shall provide a minimum vertical clearance of2 000 mm(79 in.). The doors shallguard the entire area ofthe openings except for space necessary for operation. Space necessary for operation shall reject a ball 12 mm (0.5 in.) in diameter. The lift side of the landing doors and sill shall present a smooth surface located not closer than 10 mm (0.375 in.) nor more than 20 mm (0.75 in.) from the platform floor.
2.1.1.4 All doors shall be provided with a combi- nation mechanical lock and electric contact. Locking devices shall be protected against tampering from the landing side. The locking devices may permit a door to be opened only if the platform floor is within 50 mm (2 in.) of the respective landing. They shall permit the 7 platform to move away from the landing under control of the normal operating device if the door is closed but not locked, provided that the device will cause the platform to stop if it moves away from the landing more than 50 mm (2 in.) before the door is locked. Doors shall withstand, without permanent deformation, a force of 550 N (125 lbf) applied on any 100 mm (4 in.) by 100 mm (4 in.) area.
2.1.1.4.1 The capability of door-locking devices to function as required shall be verified by an engineeringtestas described inpara. 9.9.2. Door-and/or gate-locking devices that have been tested and certified to comply with ASME A17.1/CSA B44 (including locks for private residence elevators and locks tested to earlier editions of ASME A17.1 and CSA B44.1) or CSA B355 shall be considered as meeting the requirements of this section and no further testing or markings are required. A label that shall include the model number and date of testing shall be attached to the locking device.
2.1.1.5 No hardware shall project beyond the vertical line of travel of the platform, except for that required for door locks.
2.1.1.6 The running clearance between the entrance and exit sides of the platform floor and the interior of the runway enclosures shall be not less than 10 mm (0.375 in.) nor more than 20 mm (0.75 in.).
2.1.1.7 Platform sides not used for entrance or exit shall be guarded by enclosure walls of smooth con- struction to a height of at least 1 100 mm (42 in.) above the platform floor with no openings other than those necessary for operation. Openings necessary for opera- tion shall reject a ball 12 mm (0.5 in.) in diameter. A grab rail extending the full length ofeither sidewall shall be provided at a height of 850 mm (34 in.) to 1 000 mm (38 in.). The running clearance between platform enclo- sure walls that extend less than 2 000 mm (79 in.) above the platform floor and the runway enclosure walls, verti- cal face of the machine housing, or other rigid surfaces shall be not less than 50 mm (2 in.). The running clear- ance between platform enclosure walls that extend a minimum of 2 000 mm (79 in.) above the platform floor and runway walls or other surfaces shall be not less than 20 mm (0.75 in.). Running clearance between enclosure wall ends and the entrance and exit side of the runway shall be not less than 10 mm (0.375 in.) nor more than 75 mm (3 in.).ASME A18.1 pdf download.ASME A18.1-2011 pdf free download
