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ASME A90.1-2015 pdf free

ASME A90.1-2015 pdf free.Safety Standard for Belt Manlifts.
ASME A90.1 applies to the manufacture, installation. maintenance, inspection, and operation of manlifts. Manlilts covered by this scope consist of steps (platforms) 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, elevators with enclosed platforms (Paternoster elevators), gravity lifts, or conveyors uscd only for conveying materials.
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.
(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.
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 alternate methods, but only when it is clearly evident that equal safety is thereby secured.
NOTE: It is suggested that in cases where exceptions are asked for, the enforcing authority consult with The Anwrican Society of Mechanical Engineers. Attn: S’xre4ar A90 Standards Committee, Two Park Avenue, New York, NY 10016-5990.
This Standard contains SI (metric) units as well as U.S. Customary units. The SI units have been directly (softly) converted from the U.S. Customary units.
This Standard is intended for use in conjunction with the following American National Standards:
ANSI A12..l-1973, Safety Requirements for Floor and Wall Openings, Railings, and Toeboards
ANSI A14.3-1984, Safety Requirements for Fixed t.adders
Publisher: American National Standards Institute (ANSI), 25 West 43rd Street, New York, NY 10036 (www.ansi.org)
ASME B15.l-2000, Safety Standard for Mechanical Power Transmission Apparatus
ASME B18.5-1990, Round Head Bolts Publisher: The American Society of Mechanical Engineers (ASME), Two Park Avenue, New York, NY 10016-5990; Order Department: 22 Law Drive, P.O.
Box 29(X), Fairfield, NJ 07007-2900 (www.asme.org)
NFI’A 70-1984, National Electrical Code Publisher: National Fire Protection Association (NFPA),IBatterymarch Park, Quincy, MA 02169-7471 (www.nfpa.org) belt-breaking strength: the amount of tensile load [pounds (newtons)I 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.
elevator 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 full-load operation.ASME A90.1 pdf download.

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