SIST EN 50152-2:2013

Railway applications - Fixed installations - Particular requirements for alternating current switchgear - Part 2: Disconnectors, earthing switches and switches with nominal voltage above 1 kV

This European Standard is applicable to single-pole and two-pole alternating current (a.c.) disconnectors, earthing switches and switches which are: -   designed for indoor or outdoor fixed installations in tractions systems, and  -   operated with an a.c. line voltage and frequency as specified in EN 50163. NOTE 1   EN 50163 specifies the a.c. traction systems 15 kV 16,7 Hz and 25 kV 50 Hz. NOTE 2   As rails of a.c. traction systems are connected to earth and included in the return current path all phase to earth voltages will be within the tolerances as specified in EN 50163. Nevertheless phase to phase voltages are sometimes higher, e.g. in autotransformer systems. NOTE 3   The two poles of a switch can be connected in series to provide secure isolation (i.e. two breaks in series).

Bahnanwendungen - Ortsfeste Anlagen - Besondere Anforderungen an Wechselstrom-Schaltanlagen - Teil 2: Trennschalter, Erdungsschalter und Lastschalter mit einer Nennspannung größer als 1 kV

Applications ferroviaires - Installations fixes - Spécifications particulières pour appareillage à courant alternatif - Partie 2: Sectionneurs, sectionneurs de terre et interrupteurs de tension nominale supérieure à 1 kV

Železniške naprave - Stabilne naprave električne vleke - Posebne zahteve za stikalne naprave za izmenični tok - 2. del: Odklopniki, ozemljilna stikala in stikala za nazivno napetost nad 1 kV

Ta evropski standard se uporablja za odklopnike z enopolnim ali dvopolnim izmeničnim tokom (a.c.), ozemljilna stikala in stikala, za katera velja:
– narejena so za uporabo z notranjimi ali zunanjimi pričvrščenimi napravami v vlečnih sistemih in
– uporabljajo izmenični tok linijskega vodnika, kot je navedeno v standardu EN 50163.
OPOMBA 1 Standard EN 50163 določa vlečne sisteme z izmeničnim tokom 15 kV 16,7 Hz in 25 kV 50 Hz. OPOMBA 2 Ker so tiri vlečnih sistemov z izmeničnim tokom ozemljeni in vključeni v pot povratnega toka, bodo vsi vodniki do ozemljitve v mejah toka, ki so določene v standardu EN 50163. Kljub temu so lahko napetosti med vodniki višje kot na primer v sistemih z avtotransformatorji. OPOMBA 3 Za boljšo izolacijo se lahko dva pola stikala povezujeta v nizih (npr. dva kontakta v nizu).

General Information

• Status: Published
• Public Enquiry End Date: 30-Aug-2011
• Publication Date: 26-Nov-2012
• 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: 13-Nov-2012
• Due Date: 18-Jan-2013
• Completion Date: 27-Nov-2012
• Ref Project: EN 50152-2:2012 - Railway applications - Fixed installations - Particular requirements for alternating current switchgear - Part 2: Disconnectors, earthing switches and switches with nominal voltage above 1 kV

Relations

• Replaces: SIST EN 50152-2:2008 - Railway applications - Fixed installations - Particular requirements for a.c. switchgear -- Part 2: Single-phase disconnectors, earthing switches and switches with Un above 1 kV
• Effective Date: 28-Jan-2023
• Revised: SIST EN 50152-2:2008 - Railway applications - Fixed installations - Particular requirements for a.c. switchgear -- Part 2: Single-phase disconnectors, earthing switches and switches with Un above 1 kV
• Effective Date: 06-May-2014

Overview

EN 50152-2:2012 (CLC) specifies particular requirements for alternating‑current switchgear used in railway fixed installations - specifically disconnectors, earthing switches and switches with nominal voltage above 1 kV. It applies to single‑pole and two‑pole devices designed for indoor or outdoor traction system installations and operated at the AC line voltages and frequencies defined in EN 50163 (notably 15 kV 16.7 Hz and 25 kV 50 Hz). The standard is intended to be read alongside the EN 62271 series (high‑voltage switchgear) and other EN 50152 parts.

Key topics and technical requirements

• Scope & device types: single‑pole, two‑pole and combined switching devices for fixed railway installations. Two poles may be connected in series for secure isolation (two breaks in series).
• Rated values and ratings: selection of nominal and rated voltages (phase‑to‑earth values for railway use), rated frequency and making/breaking current considerations.
• Insulation coordination: dielectric and insulation requirements referenced to EN 50124‑1 and adapted for traction systems (phase‑to‑earth vs phase‑to‑phase conditions, autotransformer systems).
• Type and routine tests: dielectric tests, making/breaking tests, mechanical and operating endurance tests, electromagnetic compatibility (EMC) tests and related conformity checks.
• Mechanical endurance classes: defined endurance classes and recommendations for intended use and service life.
• Service conditions & environmental influence: defined normal and special service conditions (minimum indoor temperature, altitude guidance via EN 50124‑1, pollution degree, overvoltage categories).
• Installation, operation & maintenance: guidance on transport, storage, erection, operation, safety measures and maintenance regimes.
• Documentation & procurement: information to be provided with inquiries, tenders and orders to ensure correct specification and compatibility.

Practical applications and users

EN 50152‑2 is used when specifying, designing, testing, procuring or maintaining high‑voltage switchgear for railway traction fixed installations. Typical users:

• Railway infrastructure owners and operators
• Electrical engineers and system designers for traction power
• Switchgear manufacturers and component suppliers
• Testing laboratories, certification bodies and safety engineers
• Maintenance teams and project procurement specialists

Benefits include consistent safety, interoperability, predictable performance under traction system voltages, and clear test/acceptance criteria for disconnectors, earthing switches and related devices.

Related standards

• EN 50152‑1 (circuit‑breakers for traction)
• EN 50163 (traction supply voltages)
• EN 50124‑1 (insulation coordination)
• EN 50121‑5 (EMC for fixed power supply)
• EN 62271‑1, EN 62271‑102, EN 62271‑103 (high‑voltage switchgear common and device‑specific rules)

Keywords: EN 50152‑2, railway switchgear, disconnectors, earthing switches, alternating current switchgear, traction systems, 15 kV, 25 kV, insulation coordination, EMC, mechanical endurance.

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2013
1DGRPHãþD
SIST EN 50152-2:2008
äHOH]QLãNHQDSUDYH6WDELOQHQDSUDYHHOHNWULþQHYOHNH3RVHEQH]DKWHYH]D
VWLNDOQHQDSUDYH]DL]PHQLþQLWRNGHO2GNORSQLNLR]HPOMLOQDVWLNDODLQVWLNDOD
]DQD]LYQRQDSHWRVWQDGN9
Railway applications - Fixed installations - Particular requirements for alternating current
switchgear - Part 2: Disconnectors, earthing switches and switches with nominal voltage
above 1 kV
Bahnanwendungen - Ortsfeste Anlagen - Besondere Anforderungen an Wechselstrom-
Schaltanlagen - Teil 2: Trennschalter, Erdungsschalter und Lastschalter mit einer
Nennspannung größer als 1 kV
Applications ferroviaires - Installations fixes - Spécifications particulières pour
appareillage à courant alternatif - Partie 2: Sectionneurs, sectionneurs de terre et
interrupteurs de tension nominale supérieure à 1 kV
Ta slovenski standard je istoveten z: EN 50152-2:2012
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 50152-2
NORME EUROPÉENNE
November 2012
EUROPÄISCHE NORM
ICS 29.120.40; 29.280 Supersedes EN 50152-2:2007

English version
Railway applications -
Fixed installations -
Particular requirements for alternating current switchgear -
Part 2: Disconnectors, earthing switches and switches with nominal
voltage above 1 kV
Applications ferroviaires -  Bahnanwendungen – Ortsfeste Anlagen -
Installations fixes - Besondere Anforderungen an
Spécifications particulières pour Wechselstrom-Schalteinrichtungen –
appareillage à courant alternatif - Teil 2: Trennschalter, Erdungsschalter
Partie 2: Sectionneurs, sectionneurs de und Lastschalter mit einer Nennspannung
terre et interrupteurs de tension nominale größer als 1 kV
supérieure à 1 kV
This European Standard was approved by CENELEC on 2012-10-15. 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.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50152-2:2012 E
Contents
Page
Foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Normal and special service conditions [2] . 7
5 Rating [4] . 7
5.1 General . 7
5.2 Nominal voltage (U ) . 7
n
5.3 Rated voltage (U ) [4.1] . 7
Ne
5.4 Insulation coordination . 7
5.5 Rated frequency [4.3] . 8
5.6 Rated supply voltage of closing and opening devices and of auxiliary and control
circuits (U ) [4.8] . 8
a
5.7 Rated making and breaking current . 8
5.8 Rated values for mechanical endurance [102: 4.106] . 9
6 Design and construction [5] . 9
6.1 General . 9
6.2 Combined switching devices . 9
7 Type tests [6] . 10
7.1 General . 10
7.2 Dielectric tests [6.2] . 10
7.3 Electromagnetic compatibility tests (EMC) [6.9] . 10
7.4 Making and breaking tests [103: 6.101] . 10
7.5 Operating and mechanical endurance test [6.102] . 10
8 Routine tests [7] . 11
9 Guide to the selection of switching devices for service [8] . 11
10 Information to be given with inquiries, tenders and orders [9] . 11
11 Rules for transport, storage, erection, operation and maintenance [10] . 11
12 Safety [11] . 11
13 Influence of the product on the environment [12] . 12
Bibliography . 13

Tables
Table 1  Nominal voltages (U ), rated impulse voltages (U ) and short-duration power-frequency
n Ni
withstand voltage (U ) for circuits connected to the contact line .8
d
Table 2  Mechanical endurance classes and recommended use .9

- 3 - EN 50152-2:2012
Foreword
This document (EN 50152-2:2012) has been prepared by CLC/SC 9XC "Electric supply and earthing systems
for public transport equipment and ancillary apparatus (Fixed installations)".
The following dates are fixed:
(dop) 2013-10-15
• latest date by which this document has to be
implemented at national level by publication of
an identical national standard or by
endorsement
(dow) 2015-10-15
• latest date by which the national standards
conflicting with this document have to
be withdrawn
This document supersedes EN 50152-2:2007.
This standard was revised to reflect the latest versions of standards referenced and to remove text already
included in the EN 62271 series. The scope was extended to include single-phase and two-phase devices.
Definitions were added to provide the necessary precision and to meet the needs of railway applications.
Table 1 was reworked according to the changes of EN 50124-1:2001, Table A.2 and Table B.1. Table 2
‘Coordination table of rated values for devices’ of the previous version was removed. Ratings previously given
under the clause ‘type tests’ were moved to the new Table 2 ‘Mechanical endurance classes and
recommended use’.
EN 50152 series under the generic title Railway applications  Fixed installations  Particular requirements
for alternating current switchgear is divided as follows:
- Part 1: Circuit-breakers with nominal voltage above 1 kV;
- Part 2: Disconnectors, earthing switches and switches with nominal voltage above 1 kV;
- Part 3-1: Measurement, control and protection devices for specific use in a.c. traction systems 
Application guide;
- Part 3-2: Measurement, control and protection devices for specific use in a.c. traction systems  Single-
phase current transformers;
- Part 3-3: Measurement, control and protection devices for specific use in a.c. traction systems  Single-
phase inductive voltage transformers.

Introduction
This standard needs to be read in conjunction with EN 62271-1:2008, EN 62271-102:2002 and/or
EN 62271-103:2011, depending on the equipment involved.
References in subclauses in EN 62271-102 need to be to EN 62271-1 instead of EN 60694.
Where a particular clause of EN 62271-1, EN 62271-102 or EN 62271-103 is not mentioned in this standard,
that clause applies as far as reasonable. Where requirements relate exclusively to three-phase systems or to
voltages outside those in use in traction systems, they are not applicable. Where this standard states
"addition" or "replacement", the relevant text of EN 62271-1, EN 62271-102 and EN 62271-103 needs to be
adapted accordingly. When a clause is named applicable to both EN 62271-102 or EN 62271-103, then
reference needs to be made only to the standard appropriate for the respective switching device.
The numbering of clauses in EN 62271 series is not used in this European Standard. The numbering in
square brackets refers to the numbering of clauses in EN 62271 series. References specific to numbering of
clauses in EN 62271-102 have the prefix ‘102.' and specific to EN 62271-103 have the prefix ‘103.'.
Where terms defined in EN 62271 series conflict with definitions of same terms as given in IEC 60050-
811:1991, or the other railway applications documents listed in the normative references, the definitions in
EN 62271-1, EN 62271-102 and EN 62271-103 need to be used.
NOTE 1 The clause numbering in EN 62271-102 and EN 62271-103 is the same as in EN 62271-1. Additional
requirements specific to the type of switching device start with subclause numbers from 100.
NOTE 2 The suffix N which appears in this standard for rated values is not used in EN 62271 series.

- 5 - EN 50152-2:2012
1 Scope
This European Standard is applicable to single-pole and two-pole alternating current (a.c.) disconnectors,
earthing switches and switches which are:
 designed for indoor or outdoor fixed installations in tractions systems, and
 operated with an a.c. line voltage and frequency as specified in EN 50163.
NOTE 1 EN 50163 specifies the a.c. traction systems 15 kV 16,7 Hz and 25 kV 50 Hz.
NOTE 2 As rails of a.c. traction systems are connected to earth and included in the return current path all phase to
earth voltages will be within the tolerances as specified in EN 50163. Nevertheless phase to phase voltages are
sometimes higher, e.g. in autotransformer systems.
NOTE 3 The two poles of a switch can be connected in series to provide secure isolation (i.e. two breaks in series).
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
EN 50121-5, Railway applications  Electromagnetic compatibility  Part 5: Emission and immunity of fixed
power supply installations and apparatus
EN 50124-1:2001, Railway applications  Insulation coordination  Part 1: Basic requirements 
Clearances and creepage distances for all electrical and electronic equipment
EN 50152-1:2012, Railway applications  Fixed installations  Particular requirements for alternating
current switchgear  Part 1: Circuit breakers with nominal voltage above 1 kV
EN 50163:2004, Railway applications  Supply voltages of traction systems
EN 62271-1:2008, High-voltage switchgear and controlgear  Part 1: Common specifications
(IEC 62271-1:2007)
EN 62271-102:2002, High-voltage switchgear and controlgear  Part 102: Alternating current disconnectors
and earthing switches (IEC 62271-102:2001 + corrigendum Apr. 2002 + corrigendum May 2003)
EN 62271-103:2011, High voltage switchgear and controlgear  Part 103: Switches for rated voltages above
1 kV up to and including 52 kV (IEC 62271-103:2011)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 62271-1:2008, EN 62271-102:2002,
EN 62271-103:2011 and the following apply.
3.1
switching device
general term covering disconnectors, earthing switches and switches
Note 1 to entry: This definition of ‘switching device’ is limited to this standard. There may be different or more
comprising use in other parts of the EN 50152 and EN 62271 series (e.g. in EN 62271-1:2008, 3.1.1).

3.2
single-pole switching device
switching device with one electrically separated conducting path for the main circuit suitable for use in a
single-phase circuit
3.3
two-pole switching device
switching device with two independent electrically separated conducting paths for the main circuit
Note 1 to entry: The two paths may be connected in series for use in a single-phase circuit where the establishment
of the two paths is simultaneous.
Note 2 to entry: This device may be used to interrupt or establish simultaneously a single-phase circuit in two
different points.
3.4
combined switching device
switching device where the main circuit of the switching device, the operating link and operating drive may be
used in combination with those fro
...