IEC 62067:2022

Power cables with extruded insulation and their accessories for rated voltages above 150 kV (<em>U</em>_m = 170 kV) up to 500 kV (<em>U</em>_m = 550 kV) - Test methods and requirements

IEC 62067:2022 specifies test methods and requirements for power cable systems, cables with extruded insulation and their accessories for fixed installations, for rated voltages above 150 kV (Um = 170 kV) up to and including 500 kV (Um = 550 kV). The requirements apply to single-core cables and to their accessories for usual conditions of installation and operation, but not to special cables and their accessories, such as submarine cables, for which modifications to the standard tests can be necessary or special test conditions that may need to be devised. This document does not cover transition joints between cables with extruded insulation and paper insulated cables.

Câbles d'énergie à isolation extrudée et leurs accessoires pour des tensions assignées supérieures à 150 kV (<em>U</em>_m = 170 kV) et jusqu'à 500 kV (<em>U</em>_m = 550 kV) - Méthodes et exigences d'essai

L'IEC 62067:2022 spécifie les méthodes et exigences d'essai relatives aux systèmes de câbles d'énergie, aux câbles à isolation extrudée et à leurs accessoires destinés aux installations fixes, pour des tensions assignées supérieures à 150 kV (Um = 170 kV) et jusqu'à 500 kV (Um = 550 kV) compris. Les exigences sont applicables aux câbles unipolaires et à leurs accessoires dans des conditions d'installation et de fonctionnement courantes, mais ne sont pas applicables aux câbles spéciaux et à leurs accessoires, tels que les câbles sous-marins, pour lesquels il peut être nécessaire de modifier les essais normalisés ou d'établir des conditions d'essai particulières. Les jonctions qui assurent le raccordement des câbles à isolant extrudé aux câbles isolés au papier ne sont pas couvertes par le présent document.

General Information

• Status: Published
• Publication Date: 20-Apr-2022
• ICS: 29.060.20 - Cables
• Technical Committee: TC 20 - Electric cables
• Drafting Committee: WG 16 - TC 20/WG 16
• Current Stage: PPUB - Publication issued
• Start Date: 22-Apr-2022
• Completion Date: 21-Apr-2022

Relations

• Revises: IEC 62067:2011 - Power cables with extruded insulation and their accessories for rated voltages above 150 kV (<em>U</em>_m = 170 kV) up to 500 kV (<em>U</em>_m = 550 kV) - Test methods and requirements
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 62067 ®
Edition 3.0 2022-04
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Power cables with extruded insulation and their accessories for rated voltages
above 150 kV (Um = 170 kV) up to 500 kV (Um = 550 kV) – Test methods and
requirements
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Secretariat Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
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International Standards for all electrical, electronic and related technologies.

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IEC 62067 ®
Edition 3.0 2022-04
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Power cables with extruded insulation and their accessories for rated voltages
above 150 kV (U = 170 kV) up to 500 kV (U = 550 kV) – Test methods and
m m
requirements
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.060.20 ISBN 978-2-8322-5176-8

– 2 – IEC 62067:2022 RLV © IEC 2022
CONTENTS
FOREWORD . 8
INTRODUCTION . 11
1 Scope . 12
2 Normative references . 12
3 Terms and definitions . 15
3.1 Definitions of dimensional values (thicknesses, cross-sections, etc.) . 15
3.2 Definitions relating to tests . 15
3.3 Other definitions . 16
4 Voltage designations, materials and rounding of numbers . 17
4.1 Rated voltages . 17
4.2 Cable insulating materials compounds . 17
4.3 Cable metal screens/sheaths . 17
4.4 Cable oversheathing materials compounds . 18
4.5 Rounding of numbers . 18
5 Precautions against water penetration in cables . 19
6 Cable characteristics . 19
7 Accessories characteristics . 20
7.1 Gas immersed cable terminations . 20
7.2 Insulators for outdoor cable terminations . 20
7.3 Accessory characteristics to be declared . 20
8 Test conditions . 21
8.1 Ambient temperature. 21
8.2 Frequency and waveform of power frequency test voltages .
8.2 High voltage tests . 21
8.3 Waveform of impulse test voltages . 22
8.3.1 Lightning impulse voltage .
8.3.2 Switching impulse voltage.
8.4 Relationship of test voltages to rated voltages . 22
8.5 Determination of the cable conductor temperature . 22
8.6 Tests on gas immersed terminations . 22
9 Routine tests on cables and and on the main insulation of prefabricated
accessories . 22
9.1 General . 22
9.2 Partial discharge test . 23
9.3 Voltage test . 23
9.4 Electrical test on oversheath of the cable . 23
10 Sample tests on cables . 24
10.1 General . 24
10.2 Frequency of tests . 24
10.3 Repetition of tests . 24
10.4 Conductor examination . 24
10.5 Measurement of electrical resistance of conductor and of metal
screen/sheath . 24
10.6 Measurement of thickness of insulation and and cable oversheath . 25
10.6.1 General . 25

10.6.2 Requirements for the insulation . 25
10.6.3 Requirements for the cable oversheath . 26
10.7 Measurement of thickness of metal sheath . 26
10.7.1 General . 26
10.7.2 Lead or lead alloy sheath . 26
10.7.3 Plain or corrugated Copper or aluminium sheath . 27
10.7.4 Metal tape for CD design . 27
10.8 Measurement of diameters . 27
10.9 Hot set test for XLPE and EPR insulations . 28
10.9.1 Procedure . 28
10.9.2 Requirements . 28
10.10 Measurement of capacitance . 28
10.11 Measurement of density of HDPE insulation . 28
10.11.1 Procedure . 28
10.11.2 Requirements . 28
10.12 Lightning impulse voltage test . 28
10.13 Water penetration test . 29
10.14 Tests on components of cables with a longitudinally applied metal tape or
foil bonded to the oversheath . 29
11 Sample tests on accessories . 29
11.1 Tests on components of accessory . 29
11.2 Tests on complete accessory . 29
12 Type tests on cable systems . 29
12.1 General . 29
12.2 Range of type approval . 30
12.3 Summary of type tests . 31
12.4 Electrical type tests on complete cable systems . 32
12.4.1 Test voltage values . 32
12.4.2 Tests and sequence of tests . 32
12.4.3 Bending test . 33
12.4.4 Partial discharge tests . 34
12.4.5 Tan δ measurement . 34
12.4.6 Heating cycle voltage test . 34
12.4.7 Impulse voltage tests . 35
12.4.8 Examination . 36
12.4.9 Resistivity of semi-conducting screens . 36
12.5 Non-electrical type tests on cable and on cable components and on
complete cable . 37
12.5.1 General . 37
12.5.2 Check of cable construction . 37
12.5.3 Tests for determining the mechanical properties of insulation before and
after ageing . 37
12.5.4 Tests for determining the mechanical properties of oversheaths before

and after ageing . 38
12.5.5 Ageing tests on for pieces of complete cable to check compatibility of
materials . 38
12.5.6 Loss of mass test on PVC oversheaths of type ST . 39
12.5.7 Pressure test at high temperature on oversheaths . 39

– 4 – IEC 62067:2022 RLV © IEC 2022
12.5.8 Test on for PVC oversheaths (ST and ST ) and LSHF oversheaths
1 2
(ST ) at low temperature . 40
12.5.9 Heat shock test for PVC oversheaths (ST and ST ) . 40
1 2
12.5.10 Ozone resistance test for EPR insulation . 40
12.5.11 Hot set test for EPR and XLPE insulations . 40
12.5.12 Measurement of density of for HDPE insulation . 40
12.5.13 Measurement of carbon blac
...

IEC 62067 ®
Edition 3.0 2022-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Power cables with extruded insulation and their accessories for rated voltages
above 150 kV (Um = 170 kV) up to 500 kV (Um = 550 kV) – Test methods and
requirements
Câbles d'énergie à isolation extrudée et leurs accessoires pour des tensions
assignées supérieures à 150 kV (Um = 170 kV) et jusqu'à 500 kV (Um = 550 kV) –
Méthodes et exigences d'essai
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

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les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

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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 IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
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Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 19 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
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If you wish to give us your feedback on this publication or need
further assistance, please contact the Customer Service
Centre: [e-mail].
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IEC 62067 ®
Edition 3.0 2022-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Power cables with extruded insulation and their accessories for rated voltages

above 150 kV (Um = 170 kV) up to 500 kV (Um = 550 kV) – Test methods and

requirements
Câbles d'énergie à isolation extrudée et leurs accessoires pour des tensions

assignées supérieures à 150 kV (Um = 170 kV) et jusqu'à 500 kV (Um = 550 kV) –

Méthodes et exigences d'essai
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.060.20 ISBN 978-2-8322-1092-8

– 2 – IEC 62067:2022 © IEC 2022
CONTENTS
FOREWORD . 7
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 12
3.1 Definitions of dimensional values (thicknesses, cross-sections, etc.) . 12
3.2 Definitions relating to tests . 12
3.3 Other definitions . 13
4 Voltage designations, materials and rounding of numbers . 14
4.1 Rated voltages . 14
4.2 Cable insulating compounds . 14
4.3 Cable metal screens/sheaths . 15
4.4 Cable oversheathing compounds . 15
4.5 Rounding of numbers . 16
5 Precautions against water penetration in cables . 16
6 Cable characteristics . 16
7 Accessories characteristics . 17
7.1 Gas immersed cable terminations . 17
7.2 Insulators for outdoor cable terminations . 17
7.3 Accessory characteristics to be declared . 17
8 Test conditions . 18
8.1 Ambient temperature. 18
8.2 High voltage tests . 18
8.3 Waveform of impulse test voltages . 18
8.4 Relationship of test voltages to rated voltages . 18
8.5 Determination of the cable conductor temperature . 19
8.6 Tests on gas immersed terminations . 19
9 Routine tests on cables and accessories . 19
9.1 General . 19
9.2 Partial discharge test . 20
9.3 Voltage test . 20
9.4 Electrical test on oversheath of the cable . 20
10 Sample tests on cables . 20
10.1 General . 20
10.2 Frequency of tests . 21
10.3 Repetition of tests . 21
10.4 Conductor examination . 21
10.5 Measurement of electrical resistance of conductor and of metal
screen/sheath . 21
10.6 Measurement of thickness of insulation and oversheath . 21
10.6.1 General . 21
10.6.2 Requirements for the insulation . 22
10.6.3 Requirements for the cable oversheath . 22
10.7 Measurement of thickness of metal sheath . 22
10.7.1 General . 22
10.7.2 Lead or lead alloy sheath . 23

10.7.3 Copper or aluminium sheath . 23
10.7.4 Metal tape for CD design . 24
10.8 Measurement of diameters . 24
10.9 Hot set test for XLPE and EPR insulations . 24
10.9.1 Procedure . 24
10.9.2 Requirements . 24
10.10 Measurement of capacitance . 24
10.11 Measurement of density of HDPE insulation . 24
10.11.1 Procedure . 24
10.11.2 Requirements . 24
10.12 Lightning impulse voltage test . 24
10.13 Water penetration test . 25
10.14 Tests on components of cables with a longitudinally applied metal tape or
foil bonded to the oversheath . 25
11 Sample tests on accessories . 25
11.1 Tests on components of accessory . 25
11.2 Tests on complete accessory . 25
12 Type tests on cable systems . 26
12.1 General . 26
12.2 Range of type approval . 26
12.3 Summary of type tests . 27
12.4 Electrical type tests on complete cable systems . 28
12.4.1 Test voltage values . 28
12.4.2 Tests and sequence of tests . 28
12.4.3 Bending test . 29
12.4.4 Partial discharge tests .
...