prEN IEC 63522-41:2024
(Main)Electrical relays - Tests and measurements - Part 41: Insulation coordination
Electrical relays - Tests and measurements - Part 41: Insulation coordination
Elektrische Relais – Mess- und Prüfverfahren – Teil 41: Isolationskoordination
Relais électriques - Essais et mesurages - Partie 41: Coordination de l'isolement
Električni releji - Preskusi in meritve -7-41. del:Uskladitev izolacije
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2023
Električni releji - Preskusi in meritve -7-41. del:Uskladitev izolacije
Electrical relays - Tests and Measurements - Part 7-41: Insulation coordination
Ta slovenski standard je istoveten z: prEN IEC 61810-7-41:2023
ICS:
29.120.70 Releji Relays
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
94/884/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61810-7-41 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-07-07 2023-09-29
SUPERSEDES DOCUMENTS:
94/836/CD, 94/870/CC
IEC TC 94 : ELECTRICAL RELAYS
SECRETARIAT: SECRETARY:
Austria Mr Bernhard Spalt
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
TC 121,SC 121A
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
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some
Countries” clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is
the final stage for submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).
TITLE:
Electrical relays – Tests and Measurements – Part 7-41: Insulation coordination
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
permission in writing from IEC.
– 2 – IEC CDV 61810-7-41:2023 © IEC 2023
1 CONTENTS
2 FOREWORD . 3
3 1 Scope . 5
4 2 Normative references . 5
5 3 Terms and definitions . 6
6 4 Clearances, creepage distances and solid insulation . 10
7 Annex A (normative) Measurement of clearances and creepage distances . 18
8 Annex B (normative) Relation between rated impulse voltage, nominal voltage and
9 overvoltage category . 23
10 Annex C (normative) Pollution degrees . 25
11 Bibliography . 26
IEC CDV 61810-7-41:2023 © IEC 2023 – 3 –
15 INTERNATIONAL ELECTROTECHNICAL COMMISSION
16 ____________
18 Eelectrical relays –
19 Tests and Measurements
21 Part 7-41: Insulation coordination
23 FOREWORD
24 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization
25 comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to p
26 2) romote international co-operation on all questions concerning standardization in the electrical and electronic
27 fields. To this end and in addition to other activities, IEC publishes International Standards, Technical
28 Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred
29 to as "IEC Publication(s)"). Their preparation is entrusted to technical committees; any IEC National
30 Committee interested in the subject dealt with may participate in this preparatory work. International,
31 governmental and non-governmental organizations liaising with the IEC also participate in this preparation.
32 IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with
33 conditions determined by agreement between the two organizations.
34 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
35 consensus of opinion on the relevant subjects since each technical committee has representation from all
36 interested IEC National Committees.
37 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
38 Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
39 Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
40 misinterpretation by any end user.
41 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
42 transparently to the maximum extent possible in their national and regional publications. Any divergence between
43 any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
44 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
45 assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
46 services carried out by independent certification bodies.
47 6) All users should ensure that they have the latest edition of this publication.
48 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
49 members of its technical committees and IEC National Committees for any personal injury, property damage or
50 other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
51 expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.
52 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
53 indispensable for the correct application of this publication.
54 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
55 rights. IEC shall not be held responsible for identifying any or all such patent rights.
56 The International Standards of the IEC 61810 have been prepared by IEC technical committee
57 94: All-or-nothing electrical relays.
58 The text of this International Standard is based on the following documents:
CD CC
94/836/CD 94/870/CC
60 Full information on the voting for the approval of this International Standard can be found in the
61 report on voting indicated in the above table.
62 This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
63 A list of all parts of IEC 61810 series, published under the general title Electromechanical
64 elementary relays, can be found on the IEC website.
– 4 – IEC CDV 61810-7-41:2023 © IEC 2023
65 This International Standard is to be used in conjunction with IEC 61810-1:2015.
66 The committee has decided that the contents of this document will remain unchanged until the
67 stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
68 the specific document. At this date, the document will be
69 • reconfirmed,
70 • withdrawn,
71 • replaced by a revised edition, or
72 • amended.
IEC CDV 61810-7-41:2023 © IEC 2023 – 5 –
75 All-or-nothing electrical relays –
76 Tests and Measurements
78 Part 7-41: Insulation coordination
82 1 Scope
83 This part of IEC 61810 part7 provides general guidance for the insulation coordination for
84 electromechanical elementary relays and similar components within the scope of IEC technical
85 committee 94. This part may also be used for similar devices when specified in a detail
86 specification.
87 The test and/or measurement of creepages, clearances, solid insolation and insulation systems
88 shall be carried out in conjunction with other IEC 61810-7 series parts.
89 The basis for the insulation coordination is given in IEC 60664 series.
90 2 Normative references
91 The following documents are referred to in the text in such a way that some or all of their content
92 constitutes requirements of this document. For dated references, only the edition cited applies.
93 For undated references, the latest edition of the referenced document (including any
94 amendments) applies.
95 IEC 60028, International standard of resistance for copper
96 IEC 60060-1:2010, High-voltage test techniques – Part 1: General definitions and test
97 requirements
98 IEC 60068-2-14, Environmental testing – Part 2-14: Tests – Test N: Change of temperature
99 IEC 60068-2-17, Basic environmental testing procedures – Part 2-17: Tests – Test Q: Sealing
100 IEC 60068-2-27, Environmental testing – Part 2-27: Tests – Test Ea and guidance: Shock
101 IEC 60068-2-64:2008, Environmental testing – Part 2-64: Tests – Test Fh: Vibration, broadband
102 random and guidance
103 IEC 60270, High-voltage test techniques – Partial discharge measurements
104 IEC 60664-1:2020, Insulation coordination for equipment within low-voltage systems – Part 1:
105 Principles, requirements and tests
106 IEC 60664-3:2016, Insulation coordination for equipment within low-voltage systems – Part 3:
107 Use of coating, potting or moulding for protection against pollution
108 IEC 60947-1:2007, Low-voltage switchgear and controlgear – Part 1: General rules
109 IEC 60999-1, Connecting devices – Electrical copper conductors – Safety requirements for
110 screw-type and screwless-type clamping units – Part 1: General requirements and particular
2 2
111 requirements for clamping units for conductors from 0,2 mm up to 35 mm (included)
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112 IEC 60999-2, Connecting devices – Electrical copper conductors – Safety requirements for
113 screw-type and screwless-type clamping units – Part 2: Particular requirements for clamping
2 2
114 units for conductors above 35 mm up to 300 mm (included)
115 IEC 61810-1:2015, Electromechanical elementary relays – Part 1: General and safety
116 requirements
117 ISO 16750-1:2018, Road vehicles – Environmental conditions and testing for electrical and
118 electronic equipment – Part 1: General
119 ISO 16750-2:2012, Road vehicles – Environmental conditions and testing for electrical and
120 electronic equipment – Part 2: Electrical loads
121 3 Terms and definitions
122 Clause 3 of IEC 61810-7-0 is applicable.
123 3.1 Terms and definitions related to insulation
125 functional insulation
126 insulation between conductive parts which is necessary only for the proper functioning of the
127 relay
128 Note 1: A typical functional insulation is the coil wire insulation.
129 [SOURCE: IEC 60050-195, 195-02-41, modified – modification of the definition]
131 basic insulation
132 insulation of hazardous-live-parts which provides basic protection against electric shock
133 Note 21 to entry: Basic insulation does not necessarily include insulation used exclusively for functional purposes.
134 [SOURCE: IEC 60664-1:2007, 3.17.2, modified – modification of the definition]
136 supplementary insulation
137 independent insulation applied in addition to basic insulation, in order to provide protection
138 against electric shock in the event of a failure of basic insulation
139 [SOURCE: IEC 60050-195, 195-06-07, modified – modification of the definition]
141 double insulation
142 insulation comprising both basic insulation and supplementary insulation
143 [SOURCE: IEC 60050-195, 195-06-08]
145 reinforced insulation
146 insulation of hazardous-live-parts which provides a degree of protection against electric shock
147 equivalent to double insulation
148 [SOURCE: IEC 60050-195, 195-06-09, modified – modification of the definition]
IEC CDV 61810-7-41:2023 © IEC 2023 – 7 –
150 conductive part
151 part which is capable of conducting electric current, although it may not necessarily be used for
152 this purpose
153 [SOURCE: IEC 60050-195, 195-01-06, modified – modification of the definition]
155 live part
156 conductor or conductive part intended to be energized in normal operation, including a neutral
157 conductor, but by convention not a PEN conductor
158 Note 1 to entry: A PEN conductor combines the functions of both a protective earthing conductor and a neutral
159 conductor.
160 [SOURCE: IEC 60050-195, 195-02-19, modified – modification of the definition]
162 clearance
163 shortest distance in air between two conductive parts, or between a conductive part and the
164 accessible surface of a relay
165 Note 1 to entry: An example for an accessible surface is the actuating member of a relay used for manual operation.
166 [SOURCE: IEC 60664-1:2007, 3.2, modified – modification of the definition]
168 solid insulation
169 solid insulating material interposed between two conductive parts
170 [SOURCE: IEC 60664-1:2007, 3.4]
172 thin layer
173 thin layer are considered as solid, homogenic insulating materia
...
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