ASTM_F_2361_-_18.pdf

Designation:F236118An American National StandardStandard Guide forOrdering Low Voltage(1000 VAC or Less)AlternatingCurrent Electric Motors for Shipboard ServiceUp to andIncluding Motors of 500 Horsepower1This standard is issued under the fixed designation F2361;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide covers the required basic ordering informa-tion for low voltage(1000 VAC or less)general-purpose,commercial,universal,small-,and medium-sized alternatingcurrent electric motors for shipboard use,up to and includingmotors of 500 hp.1.2 The electric motors covered by this guide are general-purpose(GP)motors intended to drive common shipboardmechanical machinery such as fans,blowers,centrifugal andscrew pumps.1.3 This guide is not intended to be used to order special-purpose(SP)motors or definite-purpose motors(for example,cryogenic service)or motors for use in hazardous(classified)locations as defined by the National Electrical Code(NFPA70).1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 Canadian Standards Association(CSA):2CSA Standard C390-93C Energy Efficiency Test Methodsfor Three-Phase Induction Motors General InstructionNo.12.2 Institute of Electrical and Electronic Engineers(IEEE):3IEEE Standard 45 Recommended Practice for ElectricalInstallations on ShipboardIEEE Standard 112 Standard TestProcedure for PolyphaseInduction Motors and Generators2.3 National Electrical Manufacturers Association(NEMA)Standard:4NEMA Standard MG-l Motors and Generators2.4 National Fire Protection Association(NFPA):5NFPA 70 National Electrical Code3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 closed-coupled,na special design where the motorfeatures a face mounting flange that the pump casing mountsto,and a motor shaft extension on which the pump impeller ismounted.3.1.2 dripproof,na machine enclosure that allows themotor to be cooled by ambient air having ventilation openingsthat allow operation when drops of liquid or solid particlesstrike the enclosure at any angle from zero to 15.3.1.3 drivemethod,nthemethodofdrivingtheequipment,such as direct,belt,gearbox,or chain.3.1.4 effciency classes,nstandard efficiency classes estab-lished by NEMA based on motor performance.3.1.5 end shield,na machined flange or base which haverabbets and bolt holes for mounting equipment to the motor orfor overhanging the motor on a driven machine.3.1.6 frame size,nstandard sizes established by NEMAbased on motor power and speed.3.1.7 mounting arrangement,nthe installed operating po-sition of the motor,such as horizontal,vertical shaft up,orvertical shaft down.1This guide is under the jurisdiction of ASTM Committee F25 on Ships andMarine Technology and is the direct responsibility of Subcommittee F25.10 onElectrical.Current edition approved Nov.1,2018.Published November 2018.Originallyapproved in 2003.Last previous edition approved in 2013 as F2361 03(2013).DOI:10.1520/F2361-18.2Available from Canadian Standards Association(CSA),178 Rexdale Blvd.,Toronto,ON M9W 1R3,Canada,http:/www.csagroup.org.3Available from Institute of Electrical and Electronics Engineers,Inc.(IEEE),445 Hoes Ln.,Piscataway,NJ 08854-4141,http:/www.ieee.org.4Available from National Electrical Manufacturers Association(NEMA),1300N.17th St.,Suite 900,Arlington,VA 22209,http:/www.nema.org.5Available from National Fire Protection Association(NFPA),1 BatterymarchPark,Quincy,MA 02169-7471,http:/www.nfpa.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 3.1.8 multi-speed,na motor that can operate at more thanone speed,typically at two or three speeds.3.1.9 NEMA design classes,ndesign classifications desig-nated by NEMA(see NEMA Standard MG-1)for motors thatprovides information to the end user on characteristics such asmotor starting,torque,volta