SIST EN 50152-3-1:2017/FprA1:2025

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 - Stabilne naprave 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

General Information

• Status: Not Published
• Public Enquiry End Date: 31-Jan-2025
• ICS: 29.130.20 - Low voltage switchgear and controlgear
• ICS: 29.130.99 - Other switchgear and controlgear
• ICS: 29.280 - Electric traction equipment
• 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
• Ref Project: EN 50152-3-1:2017/A1:2025 - 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

Relations

• Amends: SIST EN 50152-3-1:2017 - 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
• Effective Date: 05-Sep-2023

Overview

SIST EN 50152-3-1:2017/FprA1:2025 is a critical European standard developed by CLC, focusing on railway applications concerning fixed installations of a.c. switchgear. Specifically, this standard addresses the particular requirements for measurement, control, and protection devices designed for use in a.c. traction systems. It applies to new low voltage devices installed indoors or outdoors, operating in coordination with high voltage equipment conforming to the a.c. line voltage and frequency criteria defined in EN 50163.

The 2025 amendment (A1) introduces essential updates that refine protection functions and harmonize testing parameters with related standards, ensuring compatibility and enhanced safety across railway electrical infrastructure.

Key Topics

• Scope of Devices: Covers low voltage measurement, control, and protective devices specifically for a.c. traction systems, including those not covered by other railway product standards where feasible.
• Voltage Detection Systems: Updates the normative reference from EN 61243-5 to EN IEC 62271-213:2021, aligning voltage detection and indicating system requirements with modern high-voltage switchgear standards.
• Protection Functions: Clarifies protection function specifications, allowing system designers or infrastructure managers to define the use of di/dt or du/dt protection, enhancing risk management and operational flexibility.
• Line Testing Standards: Amends short-circuit current values for 50 Hz traction systems in Annex A to reflect current practice, with a slight reduction from 16 kA to 15 kA, improving alignment with EN 50388-1:2022 and ensuring reliable line testing protocols.
• Harmonization: Ensures uniformity and coherence across electro-technical standards relevant to public rail transport fixed installations, improving interoperability and safety compliance.

Applications

SIST EN 50152-3-1:2017/FprA1:2025 supports critical functions in railway fixed installations, such as:

• Measurement Devices: Accurate monitoring of voltage, current, and electrical parameters vital to traction system performance.
• Control Systems: Effective management of switchgear operations, enabling safe and reliable connection and disconnection within traction infrastructure.
• Protection Devices: Enhanced safeguards against electrical faults, short circuits, and unexpected electrical surges through prescribed protection functions.
• Indoor and Outdoor Installations: Standard applies broadly across different environments, ensuring device reliability regardless of location.
• System Design Compliance: Supports railway infrastructure designers and operators in meeting up-to-date international normative requirements, reducing maintenance challenges and improving operational safety.
• Line Testing Procedures: Facilitates safer, more effective line testing and diagnostics to prevent failures in traction power networks.

Related Standards

SIST EN 50152-3-1:2017/FprA1:2025 references and aligns with several key European and international standards, including:

• EN 50163: Defines operating voltages and frequencies for railway traction power supply systems, ensuring device compatibility.
• EN IEC 62271-213:2021: High-voltage switchgear and controlgear standards covering voltage detection and indicating systems.
• EN 50388-1:2022: Provides specifications on the technical requirements for railway power supply and earthing systems, particularly relating to short-circuit currents.
• EN 50152 series: The overarching standard family dealing with fixed installations and a.c. switchgear for railway applications.

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Keywords: EN 50152-3-1, railway applications, a.c. switchgear, measurement devices, control devices, protection devices, low voltage devices, traction systems, line testing, short-circuit current, railway fixed installations, European standard, CENELEC, railway electrical safety.

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 50152-3-1:2017/oprA1:2025
01-januar-2025
Železniške naprave - Stabilne naprave 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/prA1
ICS:
29.130.99 Druge stikalne in krmilne Other switchgear and
naprave controlgear
29.280 Električna vlečna oprema Electric traction equipment
SIST EN 50152-3-1:2017/oprA1:2025 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

SIST EN 50152-3-1:2017/oprA1:2025

SIST EN 50152-3-1:2017/oprA1:2025

EUROPEAN STANDARD DRAFT
EN 50152-3-1:2017
NORME EUROPÉENNE
EUROPÄISCHE NORM
prA1
November 2024
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 - Appareillage
This draft amendment prA1, if approved, will modify the European Standard EN 50152-3-1:2017; it is submitted to CENELEC members for
enquiry.
Deadline for CENELEC: 2025-02-21.

It has been drawn up by CLC/SC 9XC.

If this draft becomes an amendment, 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.

This draft amendment was established by CENELEC 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.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisatio
...