IEC TS 63060:2019

IEC TS 63060 ®
Edition 1.0 2019-02
TECHNICAL
SPECIFICATION
Electric energy supply networks – General aspects and methods for the
maintenance of installations and equipment

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IEC TS 63060 ®
Edition 1.0 2019-02
TECHNICAL
SPECIFICATION
Electric energy supply networks – General aspects and methods for the

maintenance of installations and equipment

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.240.01 ISBN 978-2-8322-6562-8

– 2 – IEC TS 63060:2019 © IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 General aspects of maintenance and maintenance management . 11
5 Management of maintenance . 13
5.1 Structure of maintenance management . 13
5.2 Principles and roles . 14
5.3 Maintenance concept . 14
5.4 Maintenance plan . 15
6 Conducting maintenance tasks . 15
6.1 General . 15
6.2 Planning of maintenance activities . 16
6.3 Instructions of maintenance activities . 16
7 Documentation and analysis . 16
7.1 Documentation . 16
7.2 Statistics . 17
7.3 Additional analysis . 17
8 Assessment and improvement of maintenance concepts. 18
Annex A (informative) Notes on types of maintenance . 19
A.1 Types of maintenance . 19
A.2 Corrective maintenance . 19
A.2.1 General . 19
A.2.2 Maintenance after the occurrence of a malfunction . 19
A.2.3 Repair after failure . 19
A.3 Preventive maintenance . 19
A.3.1 General . 19
A.3.2 Condition-based maintenance . 20
A.3.3 Periodic maintenance . 20
A.3.4 Maintenance after extraordinary operating conditions . 20
A.4 Reliability-centred maintenance . 20
A.5 Risk-based maintenance . 21
Annex B (informative) Condition assessment of equipment and installations . 22
B.1 Information for use . 22
B.2 Selection catalogue for activities to determine the actual condition of
equipment/installations of electrical supply systems . 23
B.2.1 Substations/installations . 23
B.2.2 Low voltage installations . 29
B.2.3 Fuses . 31
B.2.4 Power transformers and reactors . 31
B.2.5 Surge arrester . 32
B.2.6 Overhead lines . 32
B.2.7 Cable systems, power cables and insulated power lines . 33
B.2.8 Protection, measuring relays and protective devices . 34
B.2.9 Telecontrol systems and network technology . 35

Bibliography . 36

Figure 1 – Influence of maintenance actions with different strategies on the availability
of equipment . 12

Table 1 – Structure of maintenance management . 13

– 4 – IEC TS 63060:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC ENERGY SUPPLY NETWORKS – GENERAL ASPECTS
AND METHODS FOR THE MAINTENANCE OF INSTALLATIONS
AND EQUIPMENT
FOREWORD
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• the required support cannot be obtained for the publication of an International Standard,
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• the subject is still under technical development or where, for any other reason, there is the
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Technical Specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC TS 63060, which is a Technical Specification, has been prepared by IEC technical com-
mittee 8: System aspects of electrical energy supply.

The text of this Technical Specification is based on the following documents:
Enquiry draft Report on voting
8/1470/DTS 8/1488/RVDTS
Full information on the voting for the approval of this Technical Specification can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• transformed into an International Standard,
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

– 6 – IEC TS 63060:2019 © IEC 2019
INTRODUCTION
Maintenance (MA) and maintenance support provide an important contribution to ensure the
reliability of components and electric installations throughout their operating life cycle. The
correct functionality, performance, and reliability will be achieved by providing t
...