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IEC TS 63107
Edition 1.0 2020-04
TECHNICAL
SPECIFICATION
SPECIFICATION
TECHNIQUE
colour
inside
Integration of internal arc-fault mitigation systems in power switchgear and
controlgear assemblies (PSC assemblies) according to IEC 61439-2
Intégration de systèmes de limitation de défaut d'arc interne dans des
ensembles d'appareillage de puissance (EAP) conformément à l'IEC 61439-2
your local IEC member National Committee for further information.
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IEC TS 63107
Edition 1.0 2020-04
TECHNICAL
SPECIFICATION
SPECIFICATION
TECHNIQUE
colour
inside
Integration of internal arc-fault mitigation systems in power switchgear and
controlgear assemblies (PSC assemblies) according to IEC 61439-2
Intégration de systèmes de limitation de défaut d'arc interne dans des
ensembles d'appareillage de puissance (EAP) conformément à l'IEC 61439-2
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.20 ISBN 978-2-8322-8249-6
– 2 – IEC TS 63107:2020 © IEC 2020
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Symbols and abbreviated terms . 10
5 Interface characteristics. 10
6 Information . 10
7 Service conditions . 11
8 Constructional requirements . 11
9 Performance requirements. 12
10 Design verification . 13
11 Routine verification . 22
Annex HH (informative) Guidance for the user of PSC-assemblies about the aspects
to be considered when specifying a PSC-assembly with an integrated IAMS . 24
HH.1 General information . 24
HH.2 Influence of the electrical parameters of the supply . 25
HH.3 Interaction with other devices/systems in the PSC-assembly . 26
Annex II (informative) Guidance for the original manufacturer of PSC-assemblies on
construction requiring particular attention when incorporating IAMS . 28
II.1 Selection of devices forming parts of an IAMS . 28
II.2 Installation of switching devices and components . 28
II.3 Accessibility . 29
Annex JJ (informative) Description of the extinction of an internal arc-fault in a PSC-
assembly by an IAMS using an AQD during testing . 30
JJ.1 General . 30
JJ.2 Circuit diagram and event description . 30
JJ.3 Selected oscillograms . 31
Bibliography . 38
Figure HH.1 – Time/current characteristic curves NH- Fuse-links Size 000 –
3 gG AC 400 V IEC 60269-2 . 25
Figure JJ.1 – Circuit diagram . 30
Figure JJ.2 – Incoming currents at the beginning of the sequence . 31
Figure JJ.3 – Currents and voltages at the incoming terminals at the end of the
sequence . 32
Figure JJ.4 – Currents in the AQD circuit . 33
Figure JJ.5 – Currents in the arc-fault circuit . 34
Figure JJ.6 – Currents in the arc-fault circuit, curves magnified . 35
Figure JJ.7 – Voltages at the incoming terminals . 36
Figure JJ.8 – Electrical energy caused by the arc-fault currents and the voltages at the
incoming terminals with t as the start point for calculation . 37
Table 1 – Symbols and abbreviated terms . 10
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INTEGRATION OF INTERNAL ARC-FAULT MITIGATION SYSTEMS IN
POWER SWITCHGEAR AND CONTROLGEAR ASSEMBLIES
(PSC-ASSEMBLIES) ACCORDING TO IEC 61439-2
FOREWORD
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