EN 50526-3:2016

Railway application - Fixed installations - D.C. surge arresters and voltage limiting devices - Part 3: Application Guide

This Application Guide supports the European Standards EN 50526 1 and EN 50526 2. Guidance is offered on the following subjects. – The selection and installation of surge arresters – The selection and installation of voltage limiting devices as VLD-O and VLD-F. – The arrangement of the surge arresters and VLDs Because of differences in the established, proven methods, electric traction systems of nominal voltage 600 V – 750 V are treated separately from the systems at higher nominal voltages. This application guide does not treat systems different from the d.c. electrified traction systems

Bahnanwendungen - Ortsfeste Anlagen - Überspannungsableiter und Spannungsbegrenzungseinrichtungen für Gleichspannungsnetze - Teil 3: Anwendungsleitfaden

Dieser Anwendungsleitfaden unterstützt die Europäischen Normen EN 50526 1 und EN 50526 2. Der Leitfaden ist auf folgende Themen ausgerichtet: – die Auswahl und Installation von Überspannungsableitern; – die Auswahl und Installation von Spannungsbegrenzungseinrichtungen als VLD-O und VLD-F; – die Anordnung von Überspannungsableitern und VLDs. Aufgrund der Unterschiede in den eingeführten und bewährten Methoden werden Bahnstromversorgungen mit einer Nennspannung von DC 600 V bis DC 750 V getrennt von Systemen mit höheren Nennspannungen behandelt. Dieser Anwendungsleitfaden gilt ausschließlich für Gleichstrom-Bahnenergieversorgungssysteme.

Applications ferroviaires - Installations fixes - Parafoudres et limiteurs de tension pour systèmes à courant continu - Partie 3: Guide d'application

Le présent guide d’application prend en charge les Normes européennes EN 50526-1 et EN 50526-2. Des lignes directrices sont données sur les points suivants: – Le choix et l’installation des parafoudres – Le choix et l’installation des limiteurs de tension tels que VLD-O et VLD-F. – Le montage des parafoudres et des limiteurs de tension Du fait des différences dans les méthodes établies et éprouvées, les réseaux de traction électrique de tension nominale de 600 V à 750 V sont traités séparément des réseaux à tensions nominales plus élevées. Le présent guide d’application ne traite pas des réseaux différents des réseaux de traction électrique à courant continu.

Železniške naprave - Stabilne naprave električne vleke - Enosmerni prenapetostni odvodniki in omejilniki napetosti - 3. del: Navodilo za uporabo

To navodilo za uporabo podpira evropska standarda EN 50526 1 in EN 50526 2.
Navodila so na voljo za naslednja področja:
– izbira in namestitev prenapetostnih odvodnikov,
– izbira in namestitev omejilnikov napetosti kot VLD-O in VLD-F,
– razvrstitev prenapetostnih odvodnikov in omejilnikov napetosti.
Zaradi razlik v uveljavljenih in dokazanih metodah se električni vlečni sistemi z nazivno napetostjo 600 V do 750 V obravnavajo ločeno od sistemov z višjo nazivno napetostjo.
To navodilo za uporabo ne obravnava sistemov drugače od enosmernih elektrificiranih vlečnih sistemov.

General Information

• Status: Published
• Publication Date: 07-Jan-2016
• ICS: 29.120.50 - Fuses and other overcurrent protection devices
• ICS: 29.280 - Electric traction equipment
• Technical Committee: CLC/TC 9X - Electrical and electronic applications for railways
• Drafting Committee: CLC/SC 9XC - Electric supply and earthing systems for public transport equipment and ancillary apparatus (fixed i
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Completion Date: 23-Nov-2022
• Directive: 2008/57/EC - Directive 2008/57/EC of the European Parliament and of the Council of 17 June 2008 on the interoperability of the rail system within the Community (Recast)
• Mandate: M/483 - Mandate for programming and standardisation addressed to the European standardisation bodies under directive 2008/57/EC in the field of the interoperability of the rail system within the European Union
• Ref Project: SIST EN 50526-3:2016 - Railway applications - Fixed installations - D.C. surge arresters and voltage limiting devices - Part 3 Application guide

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2016
äHOH]QLãNHQDSUDYH6WDELOQHQDSUDYHHOHNWULþQHYOHNH(QRVPHUQLSUHQDSHWRVWQL
RGYRGQLNLLQRPHMLOQLNLQDSHWRVWLGHO1DYRGLOR]DXSRUDER
Railway applications - Fixed installations - D.C. surge arresters and voltage limiting
devices - Part 3 Application guide
Ta slovenski standard je istoveten z: EN 50526-3:2016
ICS:
29.120.50 9DURYDONHLQGUXJD Fuses and other overcurrent
PHGWRNRYQD]DãþLWD protection devices
29.280 (OHNWULþQDYOHþQDRSUHPD Electric traction equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50526-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
January 2016
ICS 29.120.50; 29.280
English Version
Railway application - Fixed installations - D.C. surge arresters
and voltage limiting devices - Part 3: Application Guide
Applications ferroviaires - Installations fixes - Parafoudres et Bahnanwendungen - Ortsfeste Anlagen -
limiteurs de tension pour systèmes à courant continu - Überspannungsableiter und
Partie 3: Guide d'application Spannungsbegrenzungseinrichtung für
Gleichspannungsnetze - Teil 3: Anwendungsleitfaden
This European Standard was approved by CENELEC on 2015-12-07. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50526-3:2016 E
Content Page
European foreword . 4
Introduction . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions. 7
4 General considerations . 13
4.1 General . 13
4.2 Application of surge arresters . 14
4.2.1 General . 14
4.2.2 Insulation level of equipment to be protected . 14
4.2.3 Internal overvoltages . 14
4.2.4 Lightning Overvoltages . 15
4.3 Application of VLDs . 16
4.3.1 General . 16
4.3.2 Short term protection . 16
4.3.3 Long term protection . 17
4.3.4 Selection of VLD-F or VLD-O . 17
5 Symbols for surge arresters and VLDs . 17
6 Guideline for Surge Arresters . 18
6.1 General . 18
6.1.1 Electrical characteristics . 18
6.1.2 Housing . 19
6.1.3 Porcelain-housed surge arresters . 19
6.1.4 Polymer-housed surge arresters . 19
6.2 Systems and equipment to be protected by surge arresters . 20
6.3 Nominal discharge current I . 23
n
6.4 Selection of Continuous Operating Voltage . 23
6.4.1 Continuous operating voltage U for arresters A1 . 23
c
6.4.2 Continuous operating voltage U for arresters A2 . 24
c
6.5 Protective level of A1 and A2 arresters. . 24
6.6 Charge transfer capability . 27
6.6.1 General . 27
6.6.2 Typical overvoltages during clearing a line fault . 27
6.6.3 Arrester A1 . 33
6.6.4 Arrester A2 . 34
6.7 Procedure to select an A1 arrester . 34
6.8 Procedure to select an A2 arrester . 38
6.9 Connecting leads of arresters . 38
6.10 Earthing requirements. 38
7 Guideline for VLDs . 39
7.1 Introduction . 39
7.2 General . 40
7.3 Mass transit railways and trams (U up to d.c. 750 V) . 40
n
7.3.1 General . 40
7.3.2 Trams with OCL . 40
7.3.3 Metros with a conductor rail . 42
7.3.4 Light-rail metros with OCLs . 43
7.4 Railways (d.c. 1 500V … d.c. 3 000 V) . 43
7.4.1 General . 43
7.4.2 Application of VLDs along the lines or at the substations and in the sectioning posts . 43
7.4.3 Recommended characteristics of VLDs . 45
7.5 Workshops . 46
7.5.1 Application of VLD-O . 46
7.5.2 Application of VLD-F . 46
8 Further considerations . 46
8.1 Installation recommendations . 46
8.1.1 Mounting aspect . 46
8.1.2 Periodicity of inspection and management of alarms . 48
8.1.3 Colours of the cables . 49
8.2 Interaction between arresters and VLDs . 49
8.3 Interaction with other systems . 49
8.3.1 Interaction with signalling systems . 49
8.3.2 Interaction with earthing systems . 50
8.3.3 Interaction with tunnel earthing systems . 50
8.3.4 Separation of a.c. cable screens . 50
Bibliography . 51

European foreword
This document (EN 50526-3:2016) has been prepared by CLC/SC 9XC, "Electric supply and earthing
systems for public transport equipment and ancillary apparatus (Fixed installations)", of CLC/TC 9X,
"Electrical and electronic applications for railways".
The following dates are fixed:
• latest date by which this document has to be (dop) 2016-12-07
implemented at national level by publication of
an identical national standard or by
endorsement
• latest date by which the national standards (dow) 2018-12-07
conflicting with this document have to
be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such patent
rights.
Introduction
This European Standard is divided into three parts.
Part 1 deals with metal oxide arresters without gaps for d.c. railway traction systems (fixed installations)
and is based on EN 60099-4.
Part 2 deals with voltage limiting devices for specific use in d.c. railway traction systems (fixed
installations).
Part 3 is a Guide of application of metal-oxide arresters and of voltage limiting devices.
1 Scope
This Application Guide supports the European Standards EN 50526-1 and EN 50526-2.
Guidance is offered on the following subjects:
– the selection and installation of surge arresters;
– the selection and installation of voltage limiting devices as VLD-O and VLD-F;
– the arrangement of the surge arresters and VLDs.
Because of differences in the established, proven methods, electric traction systems of nominal voltage
d.c. 600 V – d.c. 750 V are treated separately from the systems at higher nominal voltages.
This Application Guide only applies to d.c. electrified traction systems
2 Normative references
The following documents, in whole or in part, are normatively
...