Railway applications - Fixed installations - D.C. surge arresters and voltage limiting devices - Part 2: Voltage limiting devices

This European Standard applies to Voltage Limiting Devices (VLDs) to be applied in d.c. traction systems in order to comply with protective provisions against electric shock from d.c., and mixed a.c. – d.c. voltages, in accordance with the EN 50122 series, taking into account stray current provisions. VLDs operate in such a way as to connect the track return circuit of d.c. railway systems to the earthing system or to conductive parts within the overhead contact line zone or current collector zone.

Bahnanwendungen - Ortsfeste Anlagen - Überspannungsableiter und Spannungsbegrenzungseinrichtungen für Gleichspannungsnetze - Teil 2: Spannungsbegrenzungseinrichtungen

Diese Europäische Norm gilt für Spannungsbegrenzungseinrichtungen (VLD – en: voltage limiting device), die in Gleichstrom-Fahrleitungssystemen anzuwenden sind, um den Schutzmaßnahmen gegen elektrischen Schlag von Gleich- und Mischspannungen aus Wechsel- und Gleichspannungen nach EN 50122 unter Be-rücksichtigung der Bestimmungen für Streuströme zu entsprechen. Die Arbeitsweise von VLD ist derart, dass sie den Schienenrückleitungskreis des Gleichstrom-Bahnnetzes mit der Erdungsanlage oder leitfähigen Teile innerhalb des Oberleitungs- oder Stromabnehmerbereichs ver-binden.

Applications ferroviaires - Installations fixes - Parafoudres et limiteurs de tension pour systèmes à courant continu - Partie 2: Limiteurs de tension

La présente Norme Européenne concerne les appareils limiteurs de tension (VLD, Voltage Limiting Device) destinés à être appliqués aux réseaux de traction en courant continu afin de satisfaire aux dispositions de protection contre les chocs électriques des tensions continues et du mélange de tension alternative et de tension continue conformément à la série EN 50122, en tenant compte des dispositions concernant les courants vagabonds. Les VLD fonctionnent de telle manière à raccorder le circuit de retour de voie des réseaux ferroviaires en courant continu à un réseau de mise à la terre ou aux parties conductrices de la zone de la ligne aérienne de contact ou de la zone de collecteur de courant.

Železniške naprave - Stabilne naprave električne vleke - Enosmerni prenapetostni odvodniki in omejilniki napetosti - 2. del: Naprave za omejevanje napetosti

Ta evropski standard velja za naprave za omejevanje napetosti, ki se uporabljajo v enosmernih vlečnih sistemih, da se zagotovi skladnost zaščitnih ukrepov pred električnim udarom zaradi enosmerne ter mešane napetosti, v skladu s serijo standardov EN 50122 in ob upoštevanju ukrepov za blodeči tok. Naprave za omejevanje napetosti delujejo na tak način, da povežejo povratni tok proge enosmernih železniških sistemov z ozemljitvenim sistemom ali s prevodnimi deli v območju kontaktnih vodnikov ali sistema tokovnega odjema.

General Information

Publication Date
Withdrawal Date
Current Stage
9093 - Decision to confirm - Review Enquiry
Completion Date

Buy Standard

EN 50526-2:2014
English language
31 pages
sale 10% off
sale 10% off
e-Library read for
1 day

Standards Content (Sample)

SIST EN 50526-2:2014
Railway Applications - Fixed Installations - D.C. surge arresters and voltage limiting
devices - Part 2: Voltage limiting devices
Bahnanwendungen - Ortsfeste Anlagen - Überspannungsableiter und
Niederspannungsbegrenzer - Teil 2: Spannungsbegrenze
Applications ferroviaires - Installations fixes - Parafoudres et limiteurs de tension - Partie
2:Limiteurs de tension
Ta slovenski standard je istoveten z: EN 50526-2:2014
29.120.50 9DURYDONHLQGUXJD Fuses and other overcurrent
PHGWRNRYQD]DãþLWD protection devices
29.280 (OHNWULþQDYOHþQDRSUHPD Electric traction equipment
SIST EN 50526-2:2014 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 50526-2:2014

---------------------- Page: 2 ----------------------

SIST EN 50526-2:2014

EN 50526-2

February 2014

ICS 29.120.50; 29.280

English version

Railway applications -
Fixed installations -
D.C. surge arresters and voltage limiting devices -
Part 2: Voltage limiting devices

Applications ferroviaires -  Bahnanwendungen -
Installations fixes - Ortsfeste Anlagen -
Parafoudres et limiteurs de tension pour Überspannungsableiter und
systèmes à courant continu - Spannungsbegrenzungseinrichtungen -
Partie 2: Limiteurs de tension Teil 2:

This European Standard was approved by CENELEC on 2013-12-30. 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

© 2014 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50526-2:2014 E

---------------------- Page: 3 ----------------------

SIST EN 50526-2:2014
EN 50526-2:2014 - 2 -
Contents Page
Foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Classes of VLD . 8
5 Characteristics and requirements of the VLDs . 9
5.1 Marking . 9
5.2 Service requirements . 9
5.2.1 Normal outdoor service conditions . 9
5.2.2 Normal indoor service conditions . 9
5.2.3 Abnormal service conditions .

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.