SIST EN 50152-3-1:2017/A1:2026
(Amendment)Railway applications - Fixed installations - Particular requirements for a.c. switchgear - Part 3-1: Measurement, control and protection devices for specific use in a.c. traction systems - Devices
Railway applications - Fixed installations - Particular requirements for a.c. switchgear - Part 3-1: Measurement, control and protection devices for specific use in a.c. traction systems - Devices
This European Standard is applicable to new low voltage devices for measurement, control and protection which are:
— for indoor or outdoor fixed installations in traction systems, and
— operated in conjunction with high voltage equipment with an a.c. line voltage and frequency as specified in EN 50163.
This European Standard also applies to measurement, control and protective devices other than low voltage devices and not covered by a specific railway product standard as far as reasonably possible. Requirements of this document prevail.
Scope of amendment
Implementation of 2 technical changes:
— Modification of subclause 5.4, second item in list of protection functions.
— Aligning the value for short-circuit current of 50 Hz traction systems given in Annex A subclause A.2.1 ‘Line testing – General’ with EN 50388-1:2022 Table 7
Bahnanwendungen - Ortsfeste Anlagen - Besondere Anforderungen an Wechselstrom-Schalteinrichtungen - Teil 3-1: Mess-, Steuerungs- und Schutzeinrichtungen für Wechselstrom-Bahnanlagen - Geräte
Applications ferroviaires - Installations fixes - Exigences particulières pour appareillage à courant alternatif - Partie 3-1 : Dispositifs de mesure, de commande et de protection pour usage spécifique dans les systèmes de traction à courant alternatif - Appareillage
Železniške naprave - Fiksni postroji električne vleke - Posebne zahteve za stikalne naprave za izmenični tok - 3-1. del: Merilne, krmilne in zaščitne naprave za izključno uporabo v izmeničnih vlečnih sistemih - Naprave - Dopolnilo A1
Ta evropski standard velja za nove nizkonapetostne naprave za merjenje, krmiljenje in zaščito, ki so:
— za notranje ali zunanje fiksne inštalacije v vlečnih sistemih, in
— ki delujejo v povezavi z visokonapetostno opremo z izmenično napetostjo in frekvenco, kot je določeno v EN 50163.
Ta evropski standard se uporablja tudi za merilne, krmilne in zaščitne naprave, ki niso nizkonapetostne naprave in niso zajete v specifičnem standardu za železniške proizvode, kolikor je to razumno mogoče. Zahteve tega dokumenta prevladajo.
Področje spremembe
Izvedba 2 tehničnih sprememb:
— Sprememba podtočke 5.4, drugi element na seznamu zaščitnih funkcij.
— Uskladitev vrednosti kratkostičnega toka za vlečne sisteme 50 Hz, navedene v Prilogi A, podtočka A.2.1 'Preskušanje linij – Splošno', z EN 50388-1:2022 Tabela 7.
General Information
- Status
- Published
- Public Enquiry End Date
- 31-Jan-2025
- Publication Date
- 12-Mar-2026
- Technical Committee
- ŽEN - Electrical applications for railways
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 30-Dec-2025
- Due Date
- 06-Mar-2026
- Completion Date
- 13-Mar-2026
Relations
- Effective Date
- 03-Feb-2026
- Effective Date
- 05-Sep-2023
Overview
SIST EN 50152-3-1:2017/A1:2026 is a European standard dedicated to railway applications, specifically focusing on fixed installations that utilize alternating current (a.c.) switchgear. This document sets forth particular requirements for measurement, control, and protection devices used in a.c. traction systems. The standard applies primarily to new low voltage devices associated with high voltage a.c. systems, as defined by EN 50163, either in indoor or outdoor fixed installations. Additionally, it addresses other devices not covered by separate railway product standards, emphasizing the safety, reliability, and interoperability of railway traction power systems.
This amendment introduces crucial technical updates, including modifications to protection functions and alignment of short-circuit current values with related European standards, ensuring harmonization and compliance across railway infrastructure projects.
Key Topics
Scope and Applicability
- Devices for measurement, control, and protection exclusively intended for a.c. traction systems.
- Both low voltage and other relevant devices utilized in conjunction with high voltage railway equipment.
- Installations designed for both indoor and outdoor railway environments.
Technical Amendments in A1:2026
- Reference update: Replacement of EN 61243-5 with EN IEC 62271-213:2021 for voltage detecting systems.
- Voltage detection systems: Enhanced criteria for voltage presence and absence indication, ensuring compliance and safety.
- Protection devices: Clarification that di/dt or du/dt protection is required when specified by a system designer or infrastructure manager.
- Short-circuit current specification: Alignment of the short-circuit current value for 50 Hz traction systems with EN 50388-1:2022.
Normative References
- Highlights applicable related standards and ensures the use of accurate, up-to-date technical references for system compatibility and safety.
Applications
Railway Infrastructure Safety
- Ensures measurement, control, and protective devices provide accurate detection and reliable operation in fixed railway installations.
- Enhances interoperability and reduces the risk of system failures in traction power systems.
System Design and Project Deployment
- Enables railway operators, system designers, and infrastructure managers to specify the right devices and protection functions for new builds and upgrades.
- Assists in meeting regulatory and operational requirements for both indoor and outdoor installations.
Maintenance and Upgrades
- Facilitates the selection and maintenance of compliant measurement, control, and protection equipment.
- Ensures long-term compatibility with evolving standards and international best practices.
Related Standards
- EN 50163: Specifies requirements for supply voltages of traction systems.
- EN IEC 62271-213:2021: Pertains to high-voltage switchgear and voltage detection systems, ensuring correct voltage indication for safety.
- EN 50388-1:2022: Relates to railway applications and power supply systems, particularly regarding short-circuit current levels.
- EN 61243-1: Addresses general requirements for portable voltage detectors used in railway environments.
Practical Value
Adhering to SIST EN 50152-3-1:2017/A1:2026 ensures that railway measurement, control, and protection devices are safe, compatible, and interoperable within traction systems. By following this standard, organizations can improve system performance, mitigate electrical hazards, and facilitate cross-border railway operations in Europe with standardized, reliable equipment for a.c. traction systems.
Keywords: railway fixed installations, a.c. switchgear, measurement devices, protection devices, control devices, traction systems, voltage detection, short-circuit current, railway safety standards, EN 50152-3-1.
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Frequently Asked Questions
SIST EN 50152-3-1:2017/A1:2026 is a amendment published by the Slovenian Institute for Standardization (SIST). Its full title is "Railway applications - Fixed installations - Particular requirements for a.c. switchgear - Part 3-1: Measurement, control and protection devices for specific use in a.c. traction systems - Devices". This standard covers: This European Standard is applicable to new low voltage devices for measurement, control and protection which are: — for indoor or outdoor fixed installations in traction systems, and — operated in conjunction with high voltage equipment with an a.c. line voltage and frequency as specified in EN 50163. This European Standard also applies to measurement, control and protective devices other than low voltage devices and not covered by a specific railway product standard as far as reasonably possible. Requirements of this document prevail. Scope of amendment Implementation of 2 technical changes: — Modification of subclause 5.4, second item in list of protection functions. — Aligning the value for short-circuit current of 50 Hz traction systems given in Annex A subclause A.2.1 ‘Line testing – General’ with EN 50388-1:2022 Table 7
This European Standard is applicable to new low voltage devices for measurement, control and protection which are: — for indoor or outdoor fixed installations in traction systems, and — operated in conjunction with high voltage equipment with an a.c. line voltage and frequency as specified in EN 50163. This European Standard also applies to measurement, control and protective devices other than low voltage devices and not covered by a specific railway product standard as far as reasonably possible. Requirements of this document prevail. Scope of amendment Implementation of 2 technical changes: — Modification of subclause 5.4, second item in list of protection functions. — Aligning the value for short-circuit current of 50 Hz traction systems given in Annex A subclause A.2.1 ‘Line testing – General’ with EN 50388-1:2022 Table 7
SIST EN 50152-3-1:2017/A1:2026 is classified under the following ICS (International Classification for Standards) categories: 29.130.20 - Low voltage switchgear and controlgear; 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 50152-3-1:2017/A1:2026 has the following relationships with other standards: It is inter standard links to SIST EN IEC 62271-213:2021, SIST EN 50152-3-1:2017. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 50152-3-1:2017/A1:2026 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-april-2026
Železniške naprave - Fiksni postroji električne vleke - Posebne zahteve za stikalne
naprave za izmenični tok - 3-1. del: Merilne, krmilne in zaščitne naprave za
izključno uporabo v izmeničnih vlečnih sistemih - Naprave - Dopolnilo A1
Railway applications - Fixed installations - Particular requirements for a.c. switchgear -
Part 3-1: Measurement, control and protection devices for specific use in a.c. traction
systems - Devices
Bahnanwendungen - Ortsfeste Anlagen - Besondere Anforderungen an Wechselstrom-
Schalteinrichtungen - Teil 3-1: Mess-, Steuerungs- und Schutzeinrichtungen für
Wechselstrom-Bahnanlagen - Geräte
Applications ferroviaires - Installations fixes - Exigences particulières pour appareillage à
courant alternatif - Partie 3-1 : Dispositifs de mesure, de commande et de protection
pour usage spécifique dans les systèmes de traction à courant alternatif - Appareillage
Ta slovenski standard je istoveten z: EN 50152-3-1:2017/A1:2025
ICS:
29.130.99 Druge stikalne in krmilne Other switchgear and
naprave controlgear
29.280 Električna vlečna oprema Electric traction equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN 50152-3-1:2017/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM December 2025
ICS 29.130.20; 29.280
English Version
Railway applications - Fixed installations - Particular
requirements for a.c. switchgear - Part 3-1: Measurement,
control and protection devices for specific use in a.c. traction
systems - Devices
Applications ferroviaires - Installations fixes - Exigences Bahnanwendungen - Ortsfeste Anlagen - Besondere
particulières pour appareillage à courant alternatif - Partie Anforderungen an Wechselstrom-Schalteinrichtungen - Teil
3-1 : Dispositifs de mesure, de commande et de protection 3-1: Mess-, Steuerungs- und Schutzeinrichtungen für
pour usage spécifique dans les systèmes de traction à Wechselstrom-Bahnanlagen - Geräte
courant alternatif - Guide d'application
This amendment A1 modifies the European Standard EN 50152-3-1:2017; it was approved by CENELEC on 2025-12-08. 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 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 50152-3-1:2017/A1:2025 E
Contents Page
European foreword . 3
1 Modification to Clause 2‚ “Normative references” . 4
2 Modification to 5.2‚ “Voltage
...