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ASME A120.1-2006 pdf download

ASME A120.1-2006 pdf download.Safety Requirements for Powered Platforms and Traveling Ladders and Gantries for Building Maintenance.
Publisher: The American Society of Safety Engineers (ASSE), 1800 East Oakton Street, Des Plaines, IL 60018 Federal Specification (FS) RR-W-410-C for Wire Rope Publisher: Superintendent of Documents, U.S. Government Printing Office (GPO), 732 N. Capital Street, NW, Washington, D.C. 20402-9325 National Electrical Code Publisher: National Fire Protection Association (NFPA), One Batterymarch Park, Quincy, MA 02169-7471 1.4.1 Listed below are additional nationally recog- nized standards-promulgating organizations. American Gear Manufacturers Association (AGMA), 500 Montgomery Street, Alexandria, VA 22314-1581 American Institute of Steel Construction, Inc. (AISC), One East Wacker Drive, Chicago, IL 60601-2001 ASTM International (ASTM), 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959 American Society of Civil Engineers (ASCE), 1801 Alexander Bell Drive, Reston, VA 20191-4400 The American Society of Mechanical Engineers (ASME), Three Park Avenue, New York, NY 10016-5990 American Welding Society, (AWS), 550 NW Le Jeune Road, Miami, FL 33126 National Electrical Manufacturers Association (NEMA), 1300 North 17th Street, Rosslyn, VA 22209 1.5 Definitions accepted: accepted by the enforcing agency having juris- diction. allowable stresses: the working stress limitations imposed by a nationally recognized standards-promulgating organization. angulated roping: a means of stabilization where the upper point of suspension is inboard from the attach- ments on the suspended unit, causing the suspended unit to bear against the face of the building. brake, primary: a brake designed to be automatically applied whenever power to the prime mover is inter- rupted or discontinued. brake, secondary: a brake designed to prevent the descent of the suspended or supported equipment in the event of an overspeed condition. brake types disc: a brake in which the holding effect is obtained by frictional resistance between faces of rotating discs or shoes. self-energizing band: a unidirectional brake in which the braking action is obtained by frictional resistance 2 between a stationary flexible brake band and a rotating drum, whereby the friction force increases the holding force or pressure on the friction surfaces. shoe brake: a brake in which the holding effect is obtained by applying pressure on two or more station- ary segmental friction elements against a rotating cylin- drical wheel or drum. wire rope engaging: a brake that grips onto a wire rope, without damage to the rope, to prevent the descent of a suspended unit. building: a structure wherein people may live, work, or otherwise make use of the facilities offered within the structure. building face roller: a guide roller designed to ride on the face of the building wall to prevent the suspended or supported equipment from abrading the face of the building. building maintenance: exterior or interior operations such as window cleaning, caulking, metal polishing, reglaz- ing, and generallightmaintenance or repairs onbuilding surfaces. cable: a conductor, or group of conductors, enclosed in a weatherproof sheath, which may be used to supply electrical power or control currents for equipment and to provide voice communication circuits. carriage: a wheeled vehicle used normally for the hori- zontal movements and support of equipment. catalog strength: the rated strength of any product or material as designated by its manufacturer or vendor, based onstandard testingprocedures oracceptable engi- neering design practices. certified: accepted by design, evaluation, or inspection by a registered professional engineer. combination cable: ropes having both steel structural members for support of the equipment and copper or other electrical conductors insulated from each other and the structural members by nonconductive barriers. continuous pressure: the requirement for a constant man- ual actuation of an operating control or device. control: a mechanismused to regulate orguide the opera- tion of the equipment. davit: a device for suspending a powered platform. Unlike outriggers, a davit reacts its operating moment load into a single pedestal, socket, carriage attachment, or other connection. dropline: a vertical line from a fixed anchorage, indepen- dent of the work platform and its rigging, to which a lanyard is affixed. Droplines are also variously called lifelines, safety lines, ratlines, scarelines, etc. dynamic load: loading induced by masses undergoing changes in velocity and loads varying with time. In application, a simulated static load surcharge may be assumed to be equivalent to dynamic effects.

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