EN 50123-7-3:2003

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Bahnanwendungen - Ortsfeste Anlagen - Gleichstrom-Schalteinrichtungen -- Teil 7-3: Mess-, Steuer- und Schutzeinrichtungen in Gleichstrom-Bahnanlagen - Messumformer für Spannungsmessung und andere SpannungsmesseinrichtungenApplications ferroviaires - Installations fixes - Appareillage à courant continu -- Partie 7-3: Appareils de mesure, de commande et de protection pour usage spécifique dans les systèmes de traction à courant continu - Transducteurs et autres appareils de mesure de la tensionRailway applications - Fixed installations - D.C. switchgear -- Part 7-3: Measurement, control and protection devices for specific use in d.c. traction systems - Isolating voltage transducers and other voltage measuring devices29.280Electric traction equipment29.130.99Druge stikalne in krmilne napraveOther switchgear and controlgearICS:Ta slovenski standard je istoveten z:EN 50123-7-3:2003SIST EN 50123-7-3:2003en01-maj-2003SIST EN 50123-7-3:2003SLOVENSKI
STANDARDSIST EN 50123-7-3:19991DGRPHãþD

EUROPEAN STANDARD
EN 50123-7-3 NORME EUROPÉENNE EUROPÄISCHE NORM
February 2003 CENELEC European Committee for Electrotechnical Standardization Comité Européen de Normalisation Electrotechnique Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50123-7-3:2003 E
ICS 29.280 Supersedes EN 50123-7-3:1999
English version
Railway applications – Fixed installations – D.C. switchgear Part 7-3: Measurement, control and protection devices
for specific use in d.c. traction systems – Isolating voltage transducers and other voltage measuring devices
Applications ferroviaires –
Installations fixes – Appareillage à courant continu Partie 7-3: Appareils de mesure,
de commande et de protection pour usage spécifique dans les systèmes
de traction à courant continu – Transducteurs et autres appareils
de mesure de la tension
Bahnanwendungen – Ortsfeste Anlagen – Gleichstrom-Schalteinrichtungen Teil 7-3: Mess-, Steuer- und Schutzeinrichtungen in Gleichstrom-Bahnanlagen – Messumformer für Spannungsmessung und andere Spannungsmesseinrichtungen
This European Standard was approved by CENELEC on 2002-09-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom.
The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as EN 50123-7-3 on 2002-09-01.
This European Standard supersedes EN 50123-7-3:1999.
The following dates were fixed:
- latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2003-09-01
- latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2005-09-01
This Part 7-2 is to be used in conjunction with EN 50123-1:2003.
_____________ SIST EN 50123-7-3:2003

- 3 - EN 50123-7-3:2003 Contents
Page
Scope. 4
Normative references. 4
Definitions. 4
Service requirements. 4
Characteristics. 4 5.1
Electrical characteristics. 4 5.2
Mechanical characteristics. 6
Information to be exchanged between purchaser and supplier. 6
Tests. 7 7.1
Dielectric tests. 7 7.2
Calibration test. 7 7.3
EMC tests. 7
This European Standard gives the requirements for isolating voltage transducers and other voltage measuring devices used in d.c. railway applications, fixed installations.
This transducer is normally positioned between the voltage sensor on the live switchboard conductor or rail and the secondary device, giving galvanic insulation between the input and the output.
2 Normative references
This European Standard incorporates by dated or undated references, provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publi
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