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Federal Register / Vol. 86, No. 1 / Monday, January 4, 2021 / Rules and Regulations 1122017 Test Method B, each basic model of the electric motor types listed below must be set up in accordance with the instructions of this section to ensure consistent test results. These steps are designed to enable a motor to be attached to a dynamometer and run continuously for testing purposes. For the purposes of this appendix, a standard bearing is a 6000 series, either open or grease-lubricated double-shielded, singlerow, deep groove, radial ball bearing.

7. Section 431.442 is amended by adding, in alphabetical order, definitions for Breakdown torque, Rated frequency, Rated load, Rated output power, and Rated voltage, to read as follows:

431.442

Definitions.

Breakdown torque means the maximum torque that the motor will develop with rated voltage and frequency applied without an abrupt drop in speed. The breakdown torque is the local maximum of the torque-speed plot of the motor, closest to the synchronous speed of the motor, determined in accordance with NEMA
MG 12016 incorporated by reference, see 431.443.

Rated frequency means 60 hertz.
Rated load or full load, full rated load, or rated full load means the rated output power of a small electric motor.
Rated output power means the mechanical output power that corresponds to the small electric motors breakdown torque as specified in NEMA
MG 12016 Table 105 incorporated by reference, see 431.443 for singlephase motors or 140 percent of the breakdown torque values specified in NEMA MG 12016 Table 105 for polyphase motors. For purposes of this definition, NEMA MG 12016 Table 10
5 is applied regardless of whether elements of NEMA MG 12016 Table 105 are identified as for small or medium motors.
Rated voltage means the input voltage of a small electric motor used when making representations of the performance characteristics of a given small electric motor and selected by the motors manufacturer to be used for testing the motors efficiency.

8. Section 431.443 is amended by:
a. Revising paragraph a;
b. Redesignating paragraph c as d;
c. Adding new paragraph c;
d. Revising newly redesignated paragraph d1; and e. Adding paragraph e.
The revisions and additions read as follows:

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431.443 Materials incorporated by reference.

a General. Certain material is incorporated by reference into subpart X
of part 431 with the approval of the Director of the Federal Register under 5
U.S.C. 552a and 1 CFR part 51.
Material is incorporated as it exists on the date of the approval, and a notification of any change in the material will be published in the Federal Register. Standards can be obtained from the sources below. All approved material is available for inspection at U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, Building Technologies Program, Sixth Floor, 950
LEnfant Plaza SW, Washington, DC
20024, 202 5862945, or go to http
www1.eere.energy.gov/buildings/
appliance_standards/. It is also available at the National Archives and Records Administration NARA. For information on the availability of this material at NARA, email: fedreg.legal@
nara.gov, or go to: www.archives.gov/
federal-register/cfr/ibr-locations.html.

c IEC. International Electrotechnical Commission, 3 rue de Varembe, 1st Floor, P.O. Box 131, CH1211 Geneva 20Switzerland, +41 22 919 02 11, or go to https webstore.iec.ch/home.
1 IEC 600341, Edition 12.0 2010
02, IEC 600341:2010, Rotating electrical machinesPart 1: Rating and performance, IBR approved for 431.444.
2 IEC 6003421:2014, Edition 2.0
201406, IEC 6003421:2014, Rotating electrical machinesPart 21:
Standard methods for determining losses and efficiency from tests excluding machines for traction vehicles, IBR approved for 431.444, and 431.447.
3 IEC 600511:2016, Edition 6.0
201602, IEC 600511:2016, Direct acting indicating analogue electrical measuring instruments and their accessoriesPart 1: Definitions and general requirements common to all parts, IBR approved for 431.444.
d
1 IEEE 112TM2017 IEEE 112
2017, IEEE Standard Test Procedure for Polyphase Induction Motors and Generators, approved December 6, 2017, IBR approved for 431.444, and 431.447.

e NEMA. National Electrical Manufacturers Association, 1300 North 17th Street, Suite 900, Arlington, Virginia 22209, +1 703 841 3200, or go to https www.nema.org.
1 NEMA MG 12016, American National Standard for Motors and
PO 00000

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Generators, ANSI approved June 1, 2018, IBR approved for 431.442.
2 Reserved 9. Section 431.444 is revised to read as follows:
431.444 Test Procedures for the measurement of energy efficiency of small electric motors.

a Scope. Pursuant to section 346b1 of EPCA, this section provides the test procedures for measuring the full-load efficiency of small electric motors pursuant to EPCA. 42 U.S.C.
6317b1 For purposes of this part 431
and EPCA, the test procedures for measuring the efficiency of small electric motors shall be the test procedures specified in paragraph b of this section.
b Testing and Calculations.
Determine the full-load efficiency of a small electric motor using one of the test methods listed in this paragraphs b1
through 4 of this section.
1 Incorporation by reference: In 431.443, DOE incorporated by reference the entire standard for CSA
C74709, CSA C39010, IEC 60034
1:2010, IEC 6003421:2014, IEC
600511:2016, IEEE 1122017, and IEEE
1142010 into this section; however, only enumerated provisions of those documents referenced in this section are applicable as follows:
i CSA C74709:
A Section 1.6 Scope as specified in paragraphs b2ii and b3ii of this section;
B Section 3 Definitions as specified in paragraphs b2ii and b3ii of this section;
C Section 5 General test requirements as specified in paragraphs b2ii and b3ii of this section; and D Section 6 Test method as specified in paragraphs b2ii and b3ii of this section.
ii CSA C39010:
A Section 1.3, Scope as specified in paragraph b4ii of this section;
B Section 3.1, Definitions as specified in paragraph b4ii of this section;
C Section 5, General test requirementsMeasurements as specified in paragraph b4ii of this section;
D Section 7, Test method as specified in paragraph b4ii of this section;
E Table 1, Resistance measurement time delay as specified in paragraph b4ii of this section;
F Annex B, Linear regression analysis as specified in paragraph b4ii of this section; and G Annex C, Procedure for correction of dynamometer torque
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