IEC 60549:2013

High-voltage fuses for the external protection of shunt capacitors

IEC 60549:2013 applies to external fuses used with high-voltage capacitors according to IEC 60871-1, Shunt capacitors for a.c. power systems having a rated voltage above 1 000 V - Part 1: General. IEC 60871-1 is applicable to both capacitor units and capacitor banks intended to be used, particularly, for power-factor correction of a.c. power systems, and also to capacitors intended for use in power filter circuits. Fuses according to IEC 60549:2013 are intended to clear either faults inside a capacitor unit to permit continued operation of the remaining parts of the bank in which the unit is connected (unit fuses) or faults on the whole capacitor bank to isolate the bank from the system (line fuses). This second edition cancels and replaces the first edition published in 1976. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- alignment of the document with current IEC document structure requirements;
- clarification of certain test requirements. Keywords: external fuses used with high-voltage capacitors, shunt capacitors for a.c.power system

Coupe-circuit à fusibles haute tension destinés à la protection externe des condensateurs shunt

La CEI 60549:2013 s'applique aux fusibles externes utilisés avec des condensateurs à haute tension, selon la CEI 60871-1: Condensateurs shunt pour réseaux à courant alternatif de tension assignée supérieure à 1 000 V - Partie 1: Généralités. La CEI 60871-1 s'applique autant aux unités qu'aux batteries de condensateurs destinées notamment à être utilisées pour la correction du facteur de puissance de réseaux à courant alternatif, ainsi qu'aux condensateurs utilisés dans les circuits de filtres de puissance. Les fusibles répondant à la CEI 60549:2013 sont destinés à éliminer les défauts concernant une unité, afin de permettre aux autres parties de la batterie connectées à cette unité de continuer à fonctionner (fusibles d'unité), ou les défauts concernant une batterie dans son ensemble afin de l'isoler du réseau (fusibles de ligne). Cette deuxième édition annule et remplace la première édition parue en 1976. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques significatives suivantes par rapport à l'édition précédente:
- alignement du présent document avec les exigences actuelles relatives à la structure des documents CEI;
- clarification de certaines exigences d'essai. Mots clés: fusibles externes utilisés avec des condensateurs à haute tension, Condensateurs shunt pour réseaux à courant alternatif de tension

General Information

• Status: Published
• Publication Date: 22-Apr-2013
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.120.50 - Fuses and other overcurrent protection devices
• Technical Committee: SC 32A - High-voltage fuses
• Drafting Committee: MT 7 - TC 32/SC 32A/MT 7
• Current Stage: PPUB - Publication issued
• Start Date: 31-Jul-2013
• Completion Date: 23-Apr-2013

Standards Content (Sample)

IEC 60549 ®
Edition 2.0 2013-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage fuses for the external protection of shunt capacitors

Coupe-circuit à fusibles haute tension destinés à la protection externe des
condensateurs shunt
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IEC 60549 ®
Edition 2.0 2013-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage fuses for the external protection of shunt capacitors

Coupe-circuit à fusibles haute tension destinés à la protection externe des

condensateurs shunt
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX P
ICS 29.120.50 ISBN 978-2-83220-743-7

– 2 – 60549 © IEC:2013
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Performance requirements . 7
4.1 General . 7
4.2 Breaking requirements . 7
4.2.1 Rated maximum capacitive breaking current . 7
4.2.2 Rated capacitor discharge energy. 7
5 Type tests . 8
5.1 General . 8
5.2 Test practices . 8
5.3 Power frequency inductive current tests . 8
5.4 Capacitive breaking current tests . 9
5.4.1 Description of tests to be made . 9
5.4.2 Test circuits . 9
5.4.3 Arrangement of the equipment . 10
5.4.4 Test procedure . 11
5.4.5 Parameters to be used for tests . 12
5.4.6 Test I for fuse-links that exhibit take-over current(s) . 12
t
5.5 Capacitor Discharge breaking tests . 13
5.5.1 General . 13
5.5.2 Test circuit. 13
5.5.3 Test procedure . 14
5.6 Standard conditions of behaviour with respect to breaking tests . 14
6 Information to be given to the user . 14
7 Application information . 14
7.1 Operating voltages . 14
7.2 Rated voltage . 15
7.3 Rated current . 15
Bibliography . 16

Figure 1 – Test circuit for test duty A . 11
Figure 2 – Test circuit for test duty B . 11

Table 1 – Type tests required . 8
Table 2 – Capacitive current breaking tests . 12

60549 © IEC:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE FUSES FOR THE EXTERNAL
PROTECTION OF SHUNT CAPACITORS

FOREWORD
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International Standard IEC 60549 has been prepared by subcommittee 32A: High voltage
fuses, of IEC technical committee 32: Fuses.
This second edition cancels and replaces the first edition published in 1976. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) alignment of the document with current IEC document structure requirements;
b) clarification of certain test requirements.

– 4 – 60549 © IEC:2013
The text of this standard is based on the following documents:
CDV Report on voting
32A/294/CDV 32A/298/RVC
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
60549 © IEC:2013 – 5 –
HIGH-VOLTAGE FUSES FOR THE EXTERNAL
PROTECTION OF SHUNT CAPACITORS

1 Scope
This standard applies to external fuses used with high-voltage capacitors according to
IEC 60871-1, Shunt capacitors for a.c. power systems having a rated voltage above 1 000 V –
Part 1: General. IEC 60871-1 is applicable to both capacitor u
...