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SIST

SIST EN 50123-4:2003/A1:2014

(Amendment)

Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches

Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches

This part of EN 50123 specifies requirements for outdoor d.c. switch-disconnectors, disconnectors and earthing switches for use in outdoor fixed installations of traction systems.

Bahnanwendungen - Ortsfeste Anlagen - Gleichstrom-Schalteinrichtungen - Teil 4: Freiluft-Gleichstrom-Trennschalter, -Lasttrennschalter und -Erdungsschalter

Applications ferroviaires - Installations fixes - Appareillages à courant continu - Partie 4: Interrupteurs-sectionneurs, sectionneurs et sectionneurs de terre pour l'extérieur

Železniške naprave - Stabilne naprave električne vleke - Stikalne naprave za enosmerni tok - 4. del: Odklopni ločilniki, ločilniki in enosmerna ozemljilna stikala za zunanjo vgradnjo - Dopolnilo A1

Ta del standarda EN 50123 določa zahteve za zunanje ločilnike, odklopne ločilnike in ozemljitvena stikala za stabilne naprave vlečnih sistemov za zunanjo vgradnjo.

General Information

Status
Published
Publication Date
08-Dec-2013
ICS
29.130.99 - Other switchgear and controlgear
29.280 - Electric traction equipment
Technical Committee
ŽEN - Electrical applications for railways
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
25-Nov-2013
Due Date
30-Jan-2014
Completion Date
09-Dec-2013
Directive
2003-01-2787 - Pravilnik o projektiranju, gradnji in vzdrževanju stabilnih naprav električne vleke enosmernega sistema 3 kV
Ref Project
EN 50123-4:2003/A1:2013 - Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches

Relations

Amends
SIST EN 50123-4:2003 - Railway applications - Fixed installations - D.C. switchgear -- Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches
Effective Date
28-Jan-2023

Overview

EN 50123-4:2003/A1:2013 is a CENELEC amendment to the European standard covering railway fixed installations - specifically outdoor D.C. switchgear: disconnectors, switch-disconnectors and earthing (grounding) switches. It updates EN 50123-4:2003 and was approved on 2013-08-26 for national implementation by 2014-08-26. The amendment makes a targeted technical change to clause 5.3.3 (“Currents”), removing the factor “1,2”.

Keywords: EN 50123-4, DC switchgear, railway applications, outdoor disconnectors, earthing switches, CENELEC.

Key Topics

The standard (and this amendment) focuses on requirements relevant to outdoor DC switchgear used in electric traction and fixed railway installations. Core topics include:

  • Scope and application for outdoor DC disconnectors, switch-disconnectors and earthing switches in railway fixed installations.
  • Design and construction requirements to ensure reliable operation in outdoor environments and under traction-system conditions.
  • Electrical ratings and currents (clause 5.3.3 modified by A1) - defines how current-related parameters are specified and applied.
  • Performance and operational requirements for making, breaking and earthing operations in service and maintenance.
  • Testing and verification procedures to demonstrate compliance with mechanical, electrical and environmental performance.
  • Marking, documentation and safety to support installation, inspection and maintenance activities.

Note: This summary does not add technical values or numerical ratings not present in the official text.

Applications

EN 50123-4 is intended to be used wherever outdoor DC switchgear is needed in railway fixed installations:

  • Mainline and urban rail traction substations and feeder sites
  • Overhead or third-rail DC supply systems requiring outdoor disconnectors or earthing switches
  • Equipment procurement and factory acceptance testing for manufacturers of rail DC switchgear
  • Maintenance and safety procedures involving isolation and earthing of DC circuits

Practical benefits include consistent safety and interoperability, clearer procurement specifications, and harmonised test criteria for outdoor DC switchgear used in electric traction systems.

Who Uses This Standard

  • Railway electrical engineers and system designers
  • Switchgear manufacturers and test laboratories
  • Infrastructure owners, operators, and asset managers
  • Installation and maintenance teams specifying isolation and earthing devices

Related Standards

  • Other parts of the EN 50123 series (DC switchgear for railway fixed installations)
  • Broader CENELEC and international electrotechnical standards for railway electrical equipment and switchgear

For official technical details and normative requirements consult the full EN 50123-4:2003/A1:2013 document issued by CENELEC.

SIST EN 50123-4:2003/A1:2014SIST EN 50123-4:2003/A1:2014
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SIST EN 50123-4:2003/A1:2014
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Frequently Asked Questions

SIST EN 50123-4:2003/A1:2014 is a amendment published by the Slovenian Institute for Standardization (SIST). Its full title is "Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing switches". This standard covers: This part of EN 50123 specifies requirements for outdoor d.c. switch-disconnectors, disconnectors and earthing switches for use in outdoor fixed installations of traction systems.

This part of EN 50123 specifies requirements for outdoor d.c. switch-disconnectors, disconnectors and earthing switches for use in outdoor fixed installations of traction systems.

SIST EN 50123-4:2003/A1:2014 is classified under the following ICS (International Classification for Standards) categories: 29.130.99 - Other switchgear and controlgear; 29.280 - Electric traction equipment. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 50123-4:2003/A1:2014 has the following relationships with other standards: It is inter standard links to SIST EN 50123-4:2003. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN 50123-4:2003/A1:2014 is associated with the following European legislation: EU Directives/Regulations: 2003-01-2787. When a standard is cited in the Official Journal of the European Union, products manufactured in conformity with it benefit from a presumption of conformity with the essential requirements of the corresponding EU directive or regulation.

You can purchase SIST EN 50123-4:2003/A1:2014 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-januar-2014
äHOH]QLãNHQDSUDYH6WDELOQHQDSUDYHHOHNWULþQHYOHNH6WLNDOQHQDSUDYH]D
HQRVPHUQLWRNGHO2GNORSQLORþLOQLNLORþLOQLNLLQHQRVPHUQDR]HPOMLOQDVWLNDOD
]D]XQDQMRYJUDGQMR'RSROQLOR$
Railway applications - Fixed installations - D.C. switchgear - Part 4: Outdoor d.c.
disconnectors, switch-disconnectors and earthing switches
Bahnanwendungen - Ortsfeste Anlagen - Gleichstrom-Schalteinrichtungen - Teil 4:
Freiluft-Gleichstrom-Trennschalter, -Lasttrennschalter und -Erdungsschalter
Applications ferroviaires - Installations fixes - Appareillages à courant continu - Partie 4:
Interrupteurs-sectionneurs, sectionneurs et sectionneurs de terre pour l'extérieur
Ta slovenski standard je istoveten z: EN 50123-4:2003/A1:2013
ICS:
29.130.99 Druge stikalne in krmilne Other switchgear and
naprave controlgear
29.280 (OHNWULþQDYOHþQDRSUHPD Electric traction equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50123-4/A1
NORME EUROPÉENNE
October 2013
EUROPÄISCHE NORM
ICS 29.280; 45.020
English version
Railway applications -
Fixed installations -
D.C. switchgear -
Part 4: Outdoor d.c. disconnectors, switch-disconnectors and earthing
switches
Applications ferroviaires -  Bahnanwendungen -
Installations fixes - Ortsfeste Anlagen -
Appareillages à courant continu - Gleichstrom-Schalteinrichtungen -
Partie 4: Interrupteurs-sectionneurs, Teil 4: Freiluft-Gleichstrom-Trennschalter,
sectionneurs et sectionneurs de terre pour -Lasttrennschalter und -Erdungsschalter
l'extérieur
This amendment A1 modifies the European Standard EN 50123-4:2003; it was approved by CENELEC on
2013-08-26. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this amendment 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 amendment 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
...

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