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Federal Register / Vol. 86, No. 1 / Monday, January 4, 2021 / Rules and Regulations
readings as specified in paragraph b4ii of this section.
iii IEC 600341:2010:
A Section 7.2 as specified in paragraphs b2iii, b3iii, and b4iii of this section;
B Section 8.6.2.3.3 as specified in paragraphs b2iii, b3iii, and b4iii of this section; and C Table 5 as specified in paragraphs b2iii, b3iii, and b4iii of this section.
iv IEC 6003421:2014:
A Method 211A as specified in paragraphs b2iii and b3iii of this section;
B Method 211B as specified in paragraph b4iii of this section;
C Section 3 Terms and definitions as specified in paragraphs b2iii, b3iii, and b4iii of this section;
D Section 4 Symbols and abbreviations as specified in paragraphs b2iii, b3iii, b4iii of this section;
E Section 5 Basic requirements as specified in paragraphs b2iii, b3iii, and b4iii of this section;
F Section 6.1.2 Method 211A
Direct measurement of input and output except Section 6.1.2.2, Test Procedure as specified in paragraphs b2iii and b3iii of this section;
G Section 6.1.3 Method 211B
Summations of losses, additional load losses according to the method of residual losses as specified in paragraph b4iii of this section; and H Annex D, Test report template for 211B as specified in paragraph b4iii of this section.
v IEC 600511:2016:
A Section 5.2 as specified in paragraphs b2iii, b3iii and b4iii, of this section; and B Reserved vi IEEE 1122017:
A Test Method A as specified in paragraph b3i of this section;
B Test Method B as specified in paragraph b4i of this section;
C Section 3, General as specified in paragraphs b3i and b4i of this section;
D Section 4, Measurements as specified in paragraphs b3i and b4i of this section;
E Section 5, Machine losses and tests for losses as specified in paragraphs b3i and b4i of this section;
F Section 6.1, General as specified in paragraphs b3i and b4i of this section;
G Section 6.3, Efficiency test method AInput-output as specified in paragraph b3i of this section;
H Section 6.4, Efficiency test method BInput-output as specified in paragraph b4i of this section;

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I Section 9.2, Form AMethod A
as specified in paragraph b3i of this section;
J Section 9.3, Form A2Method A
calculations as specified in paragraph b3i of this section;
K Section 9.4, Form BMethod B
as specified in paragraph b4i of this section; and L Section 9.5, Form B2Method B
calculations as specified in paragraph b4i of this section.
vii IEEE 1142010:
A Section 3.2, Test with load as specified in paragraph b2i of this section;
B Section 4, Testing Facilities as specified in paragraph b2i of this section;
C Section 5, Measurements as specified in paragraph b2i of this section;
D Section 6, General as specified in paragraph b2i of this section;
E Section 7, Type of loss as specified in paragraph b2i of this section;
F Section 8, Efficiency and Power Factor as specified in paragraph b2i of this section;
G Section 10 Temperature Tests as specified in paragraph b2i of this section;
H Annex A, Section A.3
Determination of Motor Efficiency as specified in paragraph b2i of this section; and I Annex A, Section A.4 Explanatory notes for form 3, test data as specified in paragraph b2i of this section.
viii In cases where there is a conflict, the language of this appendix takes precedence over those documents.
Any subsequent amendment to a referenced document by the standardsetting organization will not affect the test procedure in this appendix, unless and until the test procedure is amended by DOE.
2 Single-phase small electric motors.
For single-phase small electric motors, use one of the following methods:
i IEEE 1142010, Section 3.2, Test with load, Section 4, Testing Facilities, Section 5, Measurements, Section 6, General, Section 7, Type of loss, Section 8, Efficiency and Power Factor; Section 10
Temperature Tests, Annex A, Section A.3 Determination of Motor Efficiency, Annex A, Section A.4
Explanatory notes for form 3, test data;
ii CSA C74709, Section 1.6
Scope, Section 3 Definitions, Section 5, General test requirements, and Section 6 Test method;
iii IEC 6003421:2014 Method 21
1A, Section 3 Terms and definitions,
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Section 4 Symbols and abbreviations, Section 5 Basic requirements, and Section 6.1.2 Method 211ADirect measurement of input and output except Section 6.1.2.2, Test Procedure. The supply voltage shall be in accordance with section 7.2 of IEC
600341:2010 incorporated by reference, see 431.443. The measured resistance at the end of the thermal test shall be determined in a similar way to the extrapolation procedure described in section 8.6.2.3.3 of IEC 600341:2010, using the shortest possible time instead of the time interval specified in Table 5
therein, and extrapolating to zero. The measuring instruments for electrical quantities shall have the equivalent of an accuracy class of 0,2 in case of a direct test and 0,5 in case of an indirect test in accordance with section 5.2 of IEC 600511:2016 incorporated by reference, see 431.443.
A Additional IEC 6003421:2014
Method 211A Torque Measurement Instructions.
If using IEC 6003421:2014 Method 211A to measure motor performance, follow the instructions in paragraph b2iiiB of this section, instead of section 6.1.2.2 of IEC 6003421:2014;
B Couple the machine under test to a load machine. Measure torque using an in-line, shaft-coupled, rotating torque transducer or stationary, stator reaction torque transducer. Operate the machine under test at the rated load until thermal equilibrium is achieved rate of change 1 K or less per half hour. Record U, I, Pel, n, T, qc.
3 Polyphase small electric motors of less than or equal to 1 horsepower 0.75
kW. For polyphase small electric motors with 1 horsepower or less, use one of the following methods:
i IEEE 1122017 Test Method A, Section 3, General, Section 4, Measurements, Section 5, Machine losses and tests for losses, Section 6.1, General, Section 6.3, Efficiency test method AInput-output, Section 9.2, Form AMethod A, and Section 9.3, Form A2Method A calculations;
ii CSA C74709, Section 1.6
Scope, Section 3 Definitions, Section 5, General test requirements, and Section 6 Test method;
iii IEC 6003421:2014 Method 21
1A, Section 3 Terms and definitions, Section 4 Symbols and abbreviations, Section 5 Basic requirements, and Section 6.1.2 Method 211ADirect measurement of input and output except Section 6.1.2.2, Test Procedure. The supply voltage shall be in accordance with section 7.2 of IEC
600341:2010. The measured resistance at the end of the thermal test shall be determined in a similar way to the
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