|
IEC 61535
Edition 2.0 2019-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Installation couplers intended for permanent connection in fixed installations
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de
CH-1211 Geneva 20
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.
need further assistance, please contact the Customer Service
.
IEC 61535
Edition 2.0 2019-10
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Installation couplers intended for permanent connection in fixed installations
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.120.99 ISBN 978-2-8322-7545-0
– 2 – IEC 61535:2019 RLV © IEC 2019
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 10
4 General requirements . 12
5 General notes on Conditions for tests . 12
5.1 General . 12
5.2 Test conditions . 12
5.3 Tests on non-rewirable installation couplers . 13
5.4 Order of tests . 13
5.5 Specification of tests . 13
5.6 Compliance requirements . 13
5.7 Routine tests for non-rewirable installation couplers . 13
6 Ratings . 13
6.1 Rated voltage . 13
6.2 Rated current . 14
6.3 Rated connecting capacity . 14
7 Classification . 14
7.1 rated impulse voltage: .
7.2 method of connecting the cable: .
7.3 degree of protection against ingress of foreign solid objects and ingress of
water according to IEC 60529 (IP-Code) .
7.4 location where installation couplers will be installed: .
7.5 existence of an earthing contact:.
7.6 type of conductor to be connected: .
7.7 type of terminals for rewirable installation couplers only: .
8 Marking and documentation . 16
8.1 General . 16
8.2 Use of symbols or letters . 17
8.3 Markings . 17
8.4 Documentation . 17
9 Dangerous compatibility . 18
9.1 Unintended or improper connection . 18
9.2 Engagement . 18
9.3 Compatibility of different installation coupler systems . 19
9.4 Compatibility with standard systems . 19
10 Protection against electric shock . 19
10.1 Degree of protection against ingress of solid foreign objects . 19
10.2 Access to live parts . 19
10.3 External parts . 19
11 Terminals, terminations and connectable conductors . 20
11.1 Terminals and terminations . 20
11.1.1 General . 20
11.1.2 Terminals of rewirable installation couplers . 20
11.1.3 Terminations of non-rewirable installation couplers . 20
11.2 Connectable conductors. 20
12 Construction . 21
12.1 Earth connection . 21
12.2 Locking against rotation . 21
12.3 Mechanical strength of contacts . 21
12.4 Housing of rewirable installation couplers . 21
12.5 Housing of non-rewirable installation couplers . 21
12.6 Dismantling and opening of rewirable installation couplers . 22
12.7 Earthing contact and earthing terminal . 22
12.8 Loose conductor strands . 22
12.8.1 General . 22
12.8.2 Strand test for rewirable installation couplers . 22
12.8.3 Strand test for non-rewirable installation couplers . 23
12.8.4 Strand test for non-rewirable moulded-on installation couplers . 23
12.9 Incorporation of electrical devices . 23
12.10 Retaining means . 23
12.11 Distribution blocks . 23
12.12 Shrouds . 24
12.13 Factory wiring . 24
12.14 Stress test . 24
12.14.1 General . 24
12.14.2 Stress test of rewirable installation couplers . 24
12.14.3 Stress test of non-rewirable installation couplers . 24
12.15 Separation of non-rewirable installation couplers . 24
13 Protection against harmful ingress of solid foreign objects and against harmful
ingress of water . 24
13.1 General . 24
13.2 Protection against harmful ingress of solid foreign solid objects . 25
13.3 Protection against harmful ingress of water . 25
14 Insulation resistance and electric strength . 25
14.1 General . 25
14.2 Insulation resistance . 25
14.3 Electric strength . 26
15 Construction of contacts . 26
15.1 Resiliency . 26
15.2 Resistance of connections . 26
15.3 Contact pressure . 27
16 Temperature rise . 27
17 Breaking capacity . 28
18 Forces necessary to disengage the parts of the installation coupler . 28
19 Cables and their connection . 28
19.1 Capability of being fitted . 28
19.2 Relief from pull, thrust and torsion . 29
19.3 Relief . 29
19.4 Capability to connect cables with different cross-sectional area . 29
19.5 Sharp edges . 32
20 Mechanical strength . 32
– 4 – IEC 61535:2019 RLV © IEC 2019
21 Resistance to heat and ageing.
...