prEN IEC 60413:2024
(Main)Test procedures for determining physical properties of brush materials for electrical machines
Test procedures for determining physical properties of brush materials for electrical machines
Prüfverfahren zur Bestimmung der physikalischen Eigenschaften der Werkstoffe von Kohlebürsten für elektrische Maschinen
Modes opératoires d’essai pour déterminer les propriétés physiques des matériaux de balais pour machines électriques
Testni postopki za določanje fizikalnih lastnosti krtačnih materialov za električne stroje
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2024
Testni postopki za določanje fizikalnih lastnosti krtačnih materialov za električne
stroje
Test procedures for determining physical properties of brush materials for electrical
machines
Méthodes d'essai pour la mesure des propriétés physiques des matières de balais pour
machines électriques
Ta slovenski standard je istoveten z: prEN IEC 60413:2024
ICS:
29.160.10 Sestavni deli rotacijskih Components for rotating
strojev machines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
2/2175/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60413 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-02-09 2024-05-03
SUPERSEDES DOCUMENTS:
2/2121/CD, 2/2151A/CC
IEC TC 2 : ROTATING MACHINERY
SECRETARIAT: SECRETARY:
United Kingdom Mr Charles Whitlock
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
Other TC/SCs are requested to indicate their interest, if any, in
this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
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is drawn to the fact that this Committee Draft for Vote (CDV) is
submitted for parallel voting.
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included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for submitting ISC c lauses.
(SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Test procedures for determining physical properties of brush materials for electrical machines
PROPOSED STABILITY DATE: 2026
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
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2/2175/CDV – 2 – IEC CDV 60413 © IEC:2024
CONTENTS
FOREWORD . 8
1 Scope . 10
2 Normative references . 10
3 Terms, definitions and symbols . 11
4 Test specimen . 18
4.1 General . 18
4.2 Types of test specimen . 18
4.2.1 General . 18
4.2.2 Type A . 19
4.2.3 Type B . 19
4.2.4 Type C . 20
4.2.5 Type D . 20
4.3 Preparation of test specimens . 20
4.3.1 General . 20
4.3.2 Relation between dimensions and grain direction . 20
4.3.3 Requirements on test specimens . 22
5 Apparent density . 23
5.1 General . 23
5.2 Mass-and-dimensions method . 24
5.2.1 General . 24
5.2.2 Principle of measurement . 24
5.2.3 Test equipment . 24
5.2.4 Test condition . 24
5.2.5 Test procedure . 24
5.2.6 Calculation and Report . 24
5.3 Immersion method . 25
5.3.1 General . 25
5.3.2 Principle of measurement . 25
5.3.3 Reagents . 25
5.3.4 Test equipment . 25
5.3.5 Test specimen . 27
5.3.6 Test condition . 27
5.3.7 Procedure of measurement . 27
5.3.8 Calculation . 29
6 Resistivity (specific resistance) . 30
6.1 General . 30
6.2 Voltmeter-ammeter method . 31
6.2.1 Principle of measurement . 31
6.2.2 Test equipment . 31
6.2.3 Test specimen . 32
6.2.4 Test condition . 32
6.2.5 Procedure of measurement . 33
6.2.6 Calculation and report . 34
IEC CDV 60413 © IEC:2024 – 3 – 2/2175/CDV
6.3 Eddy current method . 34
6.3.1 General . 34
6.3.2 Principle of measurement . 34
6.3.3 Test equipment . 34
6.3.4 Test specimen . 35
6.3.5 Test condition . 36
6.3.6 Procedure of measurement . 36
6.3.7 Calculation and record . 36
7 Flexural strength . 37
7.1 General . 37
7.2 Principle of measurement . 37
7.3 Test equipment . 37
7.3.1 Test machine . 37
7.3.2 Supporting knifes . 38
7.3.3 Load knife. 38
7.4 Test specimen . 38
7.5 Test condition . 40
7.6 Procedure of measurement . 40
7.7 Calculation and report . 40
8 Hardness . 41
8.1 Hardness by indentation . 41
8.1.1 General . 41
8.1.2 Principle . 42
8.1.3 Test equipment . 42
8.1.4 Test specimen . 43
8.1.5 Test condition . 43
8.1.6 Test procedure . 43
8.1.7 Calculation and report . 45
8.2 Rebound hardness with Scleroscope method . 45
8.2.1 General . 45
8.2.2 Principle of measurement . 45
8.2.3 Test equipment . 47
8.2.4 Test specimen . 48
8.2.5 Test condition . 48
8.2.6 Test procedure . 48
8.2.7 Calculation and report . 49
8.3 Rebound hardness with Leeb method . 49
8.3.1 General . 49
8.3.2 Principle of measurement . 50
8.3.3 Test equipment . 51
8.3.4 Test specimen . 52
8.3.5 Test condition . 52
8.3.6 Test procedure . 52
8.3.7 Calculation and report . 53
8.3.8 Correlation with rebound hardness . 53
9 Porosity . 54
9.1 General . 54
9.2 Impregnation-and-mass method . 55
2/2175/CDV – 4 – IEC CDV 60413 © IEC:2024
9.2.1 Principle of measurement . 55
9.2.2 Test specimen . 55
9.2.3 Test condition . 55
9.2.4 Impregnating liquid . 55
9.2.5 Test equipment . 56
9.2.6 Test procedure .
...
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