1、Designation: F 2361 03 (Reapproved 2009)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 F 2361; the number im
2、mediately 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 Th
3、is 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 genera
4、l-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 (cla
5、ssified)locations as defined by the National Electrical Code(NFPA 70).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 Standa
7、rd 45 Recommended Practice for ElectricalInstallations on ShipboardIEEE Standard 112 Standard TestProcedure forPolyphase 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 dripproofa
9、 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.3
10、.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 classesdesi
12、gn 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 March 1, 2009. Published March 2009.
13、Originallyapproved in 2003. Last previous edition approved in 2003 as F 2361 - 03.2Available from Canadian Standards Association (CSA), 5060 Spectrum Way,Mississauga, ON L4W 5N6, Canada, http:/www.csa.ca.3Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE),445 Hoes Ln., P.O
14、. 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 BatterymarchPark, Quincy, MA 02169-7471, h
15、ttp:/www.nfpa.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.provides information to the end user on characteristics such asmotor starting, torque, voltage, and so forth.3.1.10 NEMA insulation classesNEMA system that clas-sifies
16、 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 factorservice factor for an ac motor is am
17、ultiplier, 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 motorsmotorswith ratings up to 1 hp which use single-phase power.3.1.14 single-phase in
18、tegral horsepower motorsmotorswith 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. Normal slip is less than 5 %.3.1.16
19、 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.3.1.18 temperature risethe difference
20、 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-cooled (TEFC)a totally-enclosed machi
21、ne 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 not sufficiently enclosed to beairti
22、ght.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 current, or both.3.1.24 variable speed
23、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 Requirements for Electric Motor Ordering4.1
24、 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 PowerThe horsepower of the motor must
25、bestated as a standard NEMA rating. At a minimum, consider-ation should be given to the needed starting torque, capabilityto accelerate the load to full running speed and maximumoverload.4.1.1.4 EnclosureSelect in accordance with IEEE Stan-dard 45. DP or TEFC are normally specified for below deckapp
26、lications 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 criteria will apply.4.1.1.6 Ambient
27、 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.4.1.1.9 Service Factor (SF).4.1.1.10
28、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.4.1.1.14 Conduit Box LocationView from
29、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.4.1.1.16 EffciencyIf compliance with the Energy PolicyAct of 1992 is necessary, it should be stated that motors shall
30、be 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, additionalTABLE 1 Sample Electric Motor Ordering ChecklistDesign Parameter Unit, Value, OtherElectrical Input Volta
31、ge, Phase, FrequencySpeed r/min (single speed, two speed, 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 SpecifyMounting Flange (end s
32、hield) Yes or NoRotation CW, CCW, ReversibleMotor conduit box Location F1, F2Closed-Coupled Yes or NoEfficiency Standard, High, PremiumSpecial Requirements SpecifyOther Standards SpecifyF 2361 03 (2009)2regulatory or classification society requirements. Specificspecification sections and paragraphs
33、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 with the requirements of IEEEStandard
34、 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; polyphasemotorsASTM International takes no position
35、 respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.T
36、his standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM In
37、ternational Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address show
38、n 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).F 2361 03 (2009)3
