|
IEC 60092-350
Edition 5.0 2020-01
INTERNATIONAL
STANDARD
Electrical installations in ships –
Part 350: General construction and test methods of power, control
and instrumentation cables for shipboard and offshore applications
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and withdrawn publications.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 60092-350
Edition 5.0 2020-01
INTERNATIONAL
STANDARD
Electrical installations in ships –
Part 350: General construction and test methods of power, control
and instrumentation cables for shipboard and offshore applications
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.060.20; 47.020.60 ISBN 978-2-8322-7783-6
– 2 – IEC 60092-350:2020 © IEC 2020
CONTENTS
FOREWORD . 7
1 Scope . 9
2 Normative references . 9
3 Terms and definitions . 11
3.31 tests . 15
4 Constructional requirements . 16
4.1 General requirements . 16
4.1.1 General . 16
4.1.2 Voltage designation . 16
4.1.3 Cable marking . 16
4.1.4 Core identification . 17
4.1.5 Halogen-free cables. 17
4.2 Conductors . 17
4.2.1 Material . 17
4.2.2 Metal coating and separator . 17
4.2.3 Class and form . 18
4.2.4 Resistance . 18
4.3 Insulation system . 19
4.3.1 Material . 19
4.3.2 Application . 19
4.3.3 Insulation thickness . 19
4.4 Screens . 19
4.4.1 Conductor and insulation screens for high-voltage cables . 19
4.4.2 Screens (shields) for low voltage cables . 20
4.5 Cabling . 20
4.5.1 Multi-core cables . 20
4.5.2 Multi-unit cables . 20
4.6 Inner coverings, fillers and binders . 21
4.7 Inner sheath . 21
4.7.1 Material . 21
4.7.2 Application . 21
4.7.3 Thickness of inner sheath . 21
4.8 Metal braid armour . 21
4.8.1 Material . 21
4.8.2 Application . 22
4.9 Outer sheath . 22
4.9.1 Material . 22
4.9.2 Application . 22
4.9.3 Thickness of outer sheath . 22
4.9.4 Calculation of lower and upper limits for the outer dimensions of cables . 23
5 Test methods . 23
5.1 Test conditions . 23
5.1.1 Ambient temperature . 23
5.1.2 Frequency, waveform and magnitude of power-frequency test voltages . 23
5.2 Routine tests. 23
5.2.1 General . 23
5.2.2 Measurement of the electrical resistance of the conductors . 23
5.2.3 Voltage test . 24
5.2.4 Partial discharge test . 25
6 Sample tests . 26
6.1 General . 26
6.2 Frequency of sample tests . 26
6.3 Repetition of tests . 26
6.4 Conductor examination . 26
6.5 Measurement of thickness of insulation . 27
6.5.1 General . 27
6.5.2 Procedure . 27
6.5.3 Requirements . 27
6.6 Measurements of thickness of non-metallic sheaths . 27
6.6.1 General . 27
6.6.2 Procedure . 27
6.6.3 Requirements . 27
6.7 Measurement of external diameter . 27
6.8 Hot-set test for insulations and sheaths . 27
6.8.1 General procedure . 27
6.8.2 Requirements . 28
6.9 Insulation resistance test (volume resistivity determination) . 28
7 Type tests, electrical. 29
7.1 General . 29
7.2 Insulation resistance measurement . 29
7.2.1 Measurement at ambient temperature . 29
7.2.2 Measurement at maximum rated temperature . 29
7.3 Increase in AC capacitance after immersion in water . 30
7.3.1 General . 30
7.3.2 Preparation of test specimens. 30
7.3.3 Apparatus . 30
7.3.4 Procedure . 30
7.3.5 Requirements . 30
7.4 High-voltage test for 4 h for cables rated up to 1,8/3 kV . 31
7.4.1 General . 31
7.4.2 Requirement . 31
7.5 Mutual capacitance (control and instrumentation cables only) . 31
7.6 Inductance to resistance ratio (control and instrumentation cables only) . 31
7.7 High voltage sequence test (cables having a voltage rating higher than
3,6/6 (7,2) kV) . 31
7.7.1 General . 31
7.7.2 Special provisions . 31
7.7.3 Partial discharge test . 32
7.7.4 Bending test . 32
7.7.5 Tan δ measurement as a function of the voltage . 32
7.7.6 Tan δ measurement as a function of the temperature . 32
7.7.7 Heating cycle test plus partial discharge test . 33
7.7.8 Impulse withstand test, followed by a power-frequency voltage test . 33
7.7.9 High-voltage test for 4 h . 33
8 Type tests (non-electrical) . 33
– 4 – IEC 60092-350:2020 © IEC
...