ASME A90.1 pdf free download

ASME A90.1-2003 pdf free download.SAFETY STANDARD FOR BELT MANLIFTS.
ASME A90.1 applies to the manufacture, installation, maintenance, inspection, and operation of manlifts. Manlifts covered by this scope consist of steps (plat- forms) and accompanying handholds mounted on, or attached to, an endless belt operating vertically in one direction only and being supported by, and driven through, pulleys at the top and bottom. These manlifts are intended for conveyance of persons only. It is not intended that this scope cover moving stairways, eleva- tors with enclosed piatforms (Paternoster elevators), gravity lifts, or conveyors used only for conveying mate- rials.
1.2 Purpose The purpose of this Standard is to establish safety requirements for manlifts. It is intended for use as a standard reference for manlift safety requirements by manufacturers, architects, plant designers, installers, and consulting engineers, and for users of manlifts through voluntary application and for governmental authorities.
1.3 Application (a) This Standard applies to manlifts used to carry only authorized personnel trained in their use. Manlifts shall not be available to the general public. (b) Because of the difficulty in enforcing paras. 4.2 and 7.1(a), manlifts are not recommended for use on construction sites. (c) One year after the date of issuance, all provisions of this Standard shall apply to both new and existing installations, except as noted in individual sections.
1.4 Exceptions In case of practical difficulty or unnecessary hardship, the enforcing authority may grant exceptions from the literal requirements of this Standard or permit the use of altermate methods, but only when it is clearly evident that equal safety is thereby secured.
1.5 Units of Measurement This Standard contains SI (metric) units as well as Customary unis. The SI units have been directly (softly) converted from the Customary units.
2 REFERENCES
This Standard is intended for use in conjunction with the following American National Standards. ANSI A12.1-1973, Safety Requirements for Floor and Wall Openings, Railings, and Toeboards ANSI A14.3-1984, Safety Requirements for Fixed Ladders Publisher: American National Standards Institute (ANSI), 25 West 43rd Street, New York, NY 10036 ASME B15.1-2000, Safety Standard for Mechanical Power Transmission Apparatus ASME B18.5-1990, Round Head Bolts Publisher: The American Society of Mechanical Engi- neers (ASME International), Three Park Avenue, New York, NY 10016 5990; Order Department: 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 NFPA 70- 1984, National Electrical Code Publisher: National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA 02269-9101 3 DEFINITIONS belt-breaking strength: the amount of tensile load [pounds (Newtons)] applied to a belt causing its fracture. belt travel: the distance between the centers of the top and bottom pulleys when the bottom pulley is at its highest position. debris deflector: a protective shield positioned to deflect falling objects away from the bottom pulley. eleoator bolt: a flathead countersunk elevator bolt as defined by ASME B18.5-1990, Table 9. factor of safety: the ratio of the tensile strength of the material to the allowable stress when a part is subjected to fll-load operation. handhold (handgrip): a cup-shaped device securely attached to the belt, which can be grasped by the passen- ger to provide a means for maintaining balance.ASME A90.1 pdf download.