Railway applications - DC surge arresters and voltage limiting devices - Part 2: Voltage limiting devices

IEC 62848-2:2019 applies to Voltage Limiting Devices (VLDs) to be applied in DC traction systems in order to comply with protective provisions against electric shock from DC, and combined AC – DC voltages, in accordance with the IEC 62128 series, taking into account stray current provisions.
VLDs operate in such a way as to connect the track return circuit of DC railway systems to the earthing system or to conductive parts within the overhead contact line zone or current collector zone.

General Information

Status
Published
Publication Date
17-Jun-2019
Current Stage
PPUB - Publication issued
Start Date
31-May-2019
Completion Date
18-Jun-2019
Ref Project

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IEC 62848-2
®

Edition 1.0 2019-06
INTERNATIONAL
STANDARD



Railway applications – DC surge arresters and voltage limiting devices –
Part 2: Voltage limiting devices

IEC 62848-2:2019-06(en)

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IEC 62848-2

®


Edition 1.0 2019-06




INTERNATIONAL



STANDARD



















Railway applications – DC surge arresters and voltage limiting devices –

Part 2: Voltage limiting devices



























INTERNATIONAL

ELECTROTECHNICAL


COMMISSION





ICS 45.060.01 ISBN 978-2-8322-6884-1



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– 2 – IEC 62848-2:2019 © IEC 2019
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Classes of VLD . 9
5 Characteristics and requirements of the VLDs . 10
5.1 Marking . 10
5.2 Service requirements . 11
5.2.1 Normal outdoor service conditions . 11
5.2.2 Normal indoor service conditions . 11
5.2.3 Abnormal service conditions . 11
5.3 General characteristics . 12
5.4 Minimum requirements .
...

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