ASTM F2361-18

Standard Guide for Ordering Low Voltage (1000 VAC or Less) Alternating Current Electric Motors for Shipboard Service—Up to and Including Motors of 500 Horsepower

ABSTRACT
This guide provides the required basic ordering information for low voltage (1000 VAC or less, and up to and including motors of 500 hp) general-purpose (GP), commercial, universal, small and medium sized alternating current electric motors intended to drive common shipboard mechanical machinery such as fans, blowers, centrifugal and screw pumps. This guide does not address the ordering information for special-purpose (SP) motors, definite-purpose motors (for example, cryogenic service), or motors for use in hazardous (classified) locations as defined by the National Electrical Code (NFPA 70). The ordering checklist shall provide the following minimum information: electrical input; speed; power; enclosure; duty cycles; ambient temperature; insulation class; design class; service factor; drive method; mounting arrangement; mounting flange (end shield); rotation; motor conduit box location; closed-coupled; efficiency; and other special requirements.
SIGNIFICANCE AND USE
4.1 The selection criteria is to be applied for uses of (1) new motors and (2) replacement motors.  
4.2 For the selection of new or replacement motors, this practice defines the choice criteria in terms of the ordering data below.
SCOPE
1.1 This guide covers the required basic ordering information for low voltage (1000 VAC or less) general-purpose, commercial, universal, small-, and medium-sized alternating current electric motors for shipboard use, up to and including motors of 500 hp.  
1.2 The electric motors covered by this guide are general-purpose (GP) motors intended to drive common shipboard mechanical machinery such as fans, blowers, centrifugal and screw 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 (NFPA 70).  
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

General Information

• Status: Published
• Publication Date: 31-Oct-2018
• ICS: 47.020.20 - Marine engines and propulsion systems
• Technical Committee: F25 - Ships and Marine Technology
• Drafting Committee: F25.10 - Electrical

Standards Content (Sample)

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: F2361 − 18 An American National Standard
Standard Guide for
Ordering Low Voltage (1000 VAC or Less) Alternating
Current Electric Motors for Shipboard Service—Up to and
1
Including Motors of 500 Horsepower
This standard is issued under the fixed designation F2361; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 2.2 Institute of Electrical and Electronic Engineers
3
(IEEE):
1.1 This guide covers the required basic ordering informa-
IEEE Standard 45 Recommended Practice for Electrical
tion for low voltage (1000 VAC or less) general-purpose,
Installations on Shipboard
commercial, universal, small-, and medium-sized alternating
IEEE Standard 112 Standard Test—Procedure for Polyphase
current electric motors for shipboard use, up to and including
Induction Motors and Generators
motors of 500 hp.
2.3 National Electrical Manufacturers Association (NEMA)
4
1.2 The electric motors covered by this guide are general-
Standard:
purpose (GP) motors intended to drive common shipboard
NEMA Standard MG-l Motors and Generators
5
mechanical machinery such as fans, blowers, centrifugal and
2.4 National Fire Protection Association (NFPA):
screw pumps.
NFPA 70 National Electrical Code
1.3 This guide is not intended to be used to order special-
3. Terminology
purpose (SP) motors or definite-purpose motors (for example,
3.1 Definitions of Terms Specific to This Standard:
cryogenic service) or motors for use in hazardous (classified)
3.1.1 closed-coupled, n—a special design where the motor
locations as defined by the National Electrical Code (NFPA
features a face mounting flange that the pump casing mounts
70).
to, and a motor shaft extension on which the pump impeller is
1.4 This standard does not purport to address all of the
mounted.
safety concerns, if any, associated with its use. It is the
3.1.2 dripproof, n—a machine enclosure that allows the
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter- motor to be cooled by ambient air having ventilation openings
that allow operation when drops of liquid or solid particles
mine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accor- strike the enclosure at any angle from zero to 15°.
dance with internationally recognized principles on standard-
3.1.3 drive method, n—the method of driving the
ization established in the Decision on Principles for the
equipment, such as direct, belt, gearbox, or chain.
Development of International Standards, Guides and Recom-
3.1.4 effıciency classes, n—standardefficiencyclassesestab-
mendations issued by the World Trade Organization Technical
lished by NEMA based on motor performance.
Barriers to Trade (TBT) Committee.
3.1.5 end shield, n—a machined flange or base which have
rabbets and bolt holes for mounting equipment to the motor or
2. Referenced Documents
for overhanging the motor on a driven machine.
2
2.1 Canadian Standards Association (CSA):
3.1.6 frame size, n—standard sizes established by NEMA
CSA Standard C390-93C Energy Efficiency Test Methods
based on motor power and speed.
for Three-Phase Induction Motors General Instruction
No.1 3.1.7 mounting arrangement, n—the installed operating po-
sition of the motor, such as horizontal, vertical shaft up, or
vertical shaft down.
1
This guide is under the jurisdiction of ASTM Committee F25 on Ships and
Marine Technology and is the direct responsibility of Subcommittee F25.10 on
3
Electrical. Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE),
Current edition approved Nov. 1, 2018. Published November 2018. Originally 445 Hoes Ln., Piscataway, NJ 08854-4141, http://www.ieee.org.
4
approved in 2003. Last previous edition approved in 2013 as F2361 – 03 (2013). Available from National Electrical Manufacturers Association (NEMA), 1300
DOI: 10.1520/F2361-18. N. 17th St., Suite 900, Arlington, VA 22209, http://www.nema.org.
2
5
Available from Canadian Standards Association (CSA), 178 Rexdale Blvd., Available from National Fire Protection Association (NFPA), 1 Batterymarch
Toronto, ON M9W 1R3, Canada, http://www.csagroup.org. Park, Quincy, MA 02169-7471, http://www.nfpa.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

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F2361 − 18
3.1.8 multi-speed,
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: F2361 − 03 (Reapproved 2013) F2361 − 18 An American National Standard
Standard Guide for
Ordering Low Voltage (1000 VAC or Less) Alternating
Current Electric Motors for Shipboard Service—Up to and
1
Including Motors of 500 Horsepower
This standard is issued under the fixed designation F2361; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope
1.1 This guide covers the required basic ordering information for low voltage (1000 VAC or less) general-purpose, commercial,
universal, smallsmall-, and medium sized medium-sized alternating current electric motors for shipboard use, up to and including
motors of 500 hp.
1.2 The electric motors covered by this guide are general-purpose (GP) motors intended to drive common shipboard mechanical
machinery such as fans, blowers, centrifugal and screw 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 (NFPA 70).
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of
regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 Canadian Standards Association (CSA):
CSA Standard C390-93C Energy Efficiency Test Methods for Three-Phase Induction Motors General Instruction No.1
3
2.2 Institute of Electrical and Electronic Engineers (IEEE):
IEEE Standard 45 Recommended Practice for Electrical Installations on Shipboard
IEEE Standard 112 Standard Test—Procedure for Polyphase Induction Motors and Generators
4
2.3 National Electrical Manufacturers Association (NEMA) Standard:
NEMA Standard MG-l Motors and Generators
5
2.4 National Fire Protection Association (NFPA):
NFPA 70 National Electrical Code
3. Terminology
3.1 Definitions of Terms Specific to This Standard:
3.1.1 closed-coupled—closed-coupled, n—a special design where the motor features a face mounting flange that the pump
casing mounts to, and a motor shaft extension on which the pump impeller is mounted.
3.1.2 dripproof—dripproof, n—a machine enclosure that allows the motor to be cooled by ambient air having ventilation
openings that allow operation when drops of liquid or solid particles strike the enclosure at any angle from zero to 15°.
1
This guide is under the jurisdiction of ASTM Committee F25 on Ships and Marine Technology and is the direct responsibility of Subcommittee F25.10 on Electrical.
Current edition approved Oct. 1, 2013Nov. 1, 2018. Published October 2013November 2018. Originally approved in 2003. Last previous edition approved in 20092013
as F2361 – 03 (2009).(2013). DOI: 10.1520/F2361-03R13.10.1520/F2361-18.
2
Available from Canadian Standards Association (CSA), 5060 Spectrum Way, Mississauga, ON L4W 5N6, Canada, http://www.csa.ca.178 Rexdale Blvd., Toronto, ON
M9W 1R3, Canada, http://www.csagroup.org.
3
Available from Institute of Electrical and Electronics Engineers, Inc. (IEEE), 445 Hoes Ln., P.O. Box 1331, Piscataway, NJ 08854-1331,08854-4141, http://www.ieee.org.
4
Available from National Electrical Manufacturers Association (NEMA), 1300 N. 17th St., Suite 1752, Rosslyn,900, Arlington, VA 22209, http://www.nema.org.
5
Available from National Fire Protection Association (NFPA), 1 Batterymarch Park, Quincy, MA 02169-7471, http://www.nfpa.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
F2361 − 18
3.1.3 drive method—method, n—the method of driving the equipment, such as direct, belt, gearbox, or chain.
3.1.4 effıciency classes—classes, n—standard efficiency classes established by NEMA based on motor performance.
3.1.5 end shield—shield, n—a machined flange or base
...