ANSI ASTM F2361-2003 Standard Guide for Ordering Low Voltage (1000 VAC or Less) Alternating Current Electric Motors for Shipboard Service-Up to and Including Motors of 500 Horsepow.pdf

1、Designation: F2361 03 (Reapproved 2013) An 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 imm

2、ediately 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 Thi

3、s 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

4、-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 (clas

5、sified)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 and health practices and determine the

6、applica-bility of regulatory requirements prior to use.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 Standar

7、d 45 Recommended Practice for ElectricalInstallations on ShipboardIEEE Standard 112 Standard TestProcedure for Poly-phase Induction Motors and Generators2.3 National Electrical Manufacturers Association (NEMA)Standard:4NEMA Standard MG-l Motors and Generators2.4 National Fire Protection Association

8、(NFPA):5NFPA 70 National Electrical Code3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 closed-coupleda 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

9、a machine enclosure that allows the motorto be cooled by ambient air having ventilation openings thatallow operation when drops of liquid or solid particles strikethe enclosure at any angle from zero to 15.3.1.3 drive methodthe method of driving the equipment,such as direct, belt, gearbox, or chain.

10、3.1.4 effciency classesstandard efficiency classes estab-lished by NEMA based on motor performance.3.1.5 end shielda 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 sizestandard sizes established

11、 by NEMAbased on motor power and speed.3.1.7 mounting arrangementthe installed operating posi-tion of the motor, such as horizontal, vertical shaft up, orvertical shaft down.3.1.8 multi-speeda motor that can operate at more thanone speed, typically at two or three speeds.3.1.9 NEMA design classesdes

12、ign classifications desig-nated by NEMA (See NEMA Standard MG-1) for motors that1This 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 Oct. 1, 2013. Published October 2013

13、. Originallyapproved in 2003. Last previous edition approved in 2009 as F2361 - 03 (2009).DOI: 10.1520/F2361-03R13.2Available from Canadian Standards Association (CSA), 5060 Spectrum Way,Mississauga, ON L4W 5N6, Canada, http:/www.csa.ca.3Available from Institute of Electrical and Electronics Enginee

14、rs, Inc. (IEEE),445 Hoes Ln., P.O. Box 1331, Piscataway, NJ 08854-1331, http:/www.ieee.org.4Available from National Electrical Manufacturers Association (NEMA), 1300N. 17th St., Suite 1752, Rosslyn, VA 22209, http:/www.nema.org.5Available from National Fire Protection Association (NFPA), 1 Batteryma

15、rchPark, Quincy, MA 02169-7471, http:/www.nfpa.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1provides information to the end user on characteristics such asmotor starting, torque, voltage, and so forth.3.1.10 NEMA insulation cla

16、ssesNEMA system that clas-sifies motor insulation systems by their ability to withstand aspecified temperature for a specified length of time withminimum deterioration.3.1.11 polyphase medium motorsmotors which havewindings so arranged to accept to polyphase voltage sources.3.1.12 service factorserv

17、ice factor for an ac motor is amultiplier, which when applied to the rated horsepower,indicates a permissible horsepower loading which may becarried under the conditions specified for the service factor.3.1.13 single-phase fractional horsepower motors motorswith ratings up to 1 hp which use single-p

18、hase power.3.1.14 single-phase integral horsepower motors motorswith ratings of 1 hp up to and including 10 hp, which normallyuse single-phase power but at the upper end of their specifiedrange may also utilize polyphase power.3.1.15 slipthe difference between synchronous speed andfull load speed. N

19、ormal slip is less than 5 %.3.1.16 speedthe number of revolutions per minute (r/min)at which an induction motor operates, which is dependent uponthe input power, frequency, and the number of magnetic polesin the machine.3.1.17 temperature, ambientthe temperature of the airsurrounding the machine.3.1

20、.18 temperature risethe difference between the hotspot temperature and the ambient temperature times a constant(see NEMA MG-1).3.1.19 totally-enclosed air over (TEAO)an enclosuresimilar to a TEFC except the cooling air is provided by a fanthat is not part of the motor.3.1.20 totally-enclosed fan-coo

21、led (TEFC)a totally-enclosed machine equipped for exterior cooling by means of afan or fans integral with the machine but external to theenclosed parts.3.1.21 totally-enclosed non-ventilated (TENV) a machineenclosed to prevent the free exchange of air between the insideand outside of the case, but n

22、ot sufficiently enclosed to beairtight.3.1.22 totally-enclosed water-air cooled (TEWAC) atotally-enclosed machine with integral water-to-air heat ex-changer and internal fans to provide closed-loop cooling of thewindings.3.1.23 universal motorstypically small motors, which canoperate on ac or dc cur

23、rent, or both.3.1.24 variable speed drive (VSD)a method used to per-mit an operator to vary the speed of a motor.3.1.25 weather protecteda machine with ventilating pas-sages so constructed as to minimize the entrance of rain, snowand airborne particles to the electrical components.4. General Require

24、ments for Electric Motor Ordering4.1 Electric Motor Ordering Requirements :4.1.1 With each electric motor ordered for marine service,provide the following, to the greatest extent practicable:4.1.1.1 Electrical InputVoltage, phases and frequency.4.1.1.2 Speed (Synchronous or Full Load) r/min.4.1.1.3

25、PowerThe horsepower of the motor must be statedas a standard NEMA rating. At a minimum, considerationshould be given to the needed starting torque, capability toaccelerate the load to full running speed and maximumoverload.4.1.1.4 EnclosureSelect in accordance with IEEE Stan-dard 45. DP or TEFC are

26、normally specified for below deckapplications and WP for above deck applications.4.1.1.5 Duty CycleContinuous duty is normally specifiedsince it demands operation at an essentially constant load for anindefinitely long time. If intermittent or varying duty cycles arerequired, special motor selection

27、 criteria will apply.4.1.1.6 Ambient TemperatureStandard motors are de-signed for 400C ambient. If a higher ambient is required, thiswill reduce the service factor or reduce the motor rating thusrequiring a larger size motor.4.1.1.7 Insulation Class.4.1.1.8 Design ClassNEMA designated design class.4

28、.1.1.9 Service Factor (SF).4.1.1.10 Drive Method.4.1.1.11 Mounting ArrangementIf vertical, specify withor without feet.4.1.1.12 Mounting Flange (End Shield) :(1) C-face(2) D-flange(3) P-base4.1.1.13 RotationThe rotation of the motor must be speci-fied as clockwise, counter-clockwise or reversible.4.

29、1.1.14 Conduit Box LocationView from the non-shaftend of the motor:(1) Right (standard)F1(2) LeftF24.1.1.15 Closed-coupledSpecify when the motor willmount the pump on a flange and the motor shaft mounts thepump impeller.TABLE 1 Sample Electric Motor Ordering ChecklistDesign Parameter Unit, Value, Ot

30、herElectrical Input Voltage, Phase,FrequencySpeed r/min (single speed, twospeed, VSD)PowerEnclosure Type per NEMA MG-1Duty Cycles Continuous or OtherAmbient Temperature CInsulation Class per NEMA MG-1Design Class per NEMA MG-1Service Factor 1.0 or OtherDrive Method SpecifyMounting Arrangement Specif

31、yMounting Flange (end shield) Yes or NoRotation CW, CCW, ReversibleMotor conduit box Location F1, F2Closed-Coupled Yes or NoEfficiency Standard, High, PremiumSpecial Requirements SpecifyOther Standards SpecifyF2361 03 (2013)24.1.1.16 EffciencyIf compliance with the Energy PolicyAct of 1992 is necess

32、ary, it should be stated that motors shallbe furnished with a nominal efficiency as defined in Table12-10, NEMA MG-1.4.1.1.17 Special RequirementsThis shall include, but notbe limited to, space heaters, temperature protection, additionalregulatory or classification society requirements. Specificspec

33、ification sections and paragraphs must be cited.4.2 Other Requirements:4.2.1 Marine ServiceEach motor specified for installationon board ship shall as a minimum comply with the require-ments of IEEE Standard 45.4.2.2 General TestingUnless otherwise stated, all motorsshall be tested in accordance wit

34、h the requirements of IEEEStandard 112.4.3 Electric Motor Ordering Checklist :4.3.1 It is recommended that the minimum informationshown in Table 1 be provided to the supplier when ordering anelectric motor for marine service.5. Keywords5.1 general purpose motors; multi-speed motors; polyphasemotorsA

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38、e on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).F2361 03 (2013)3