prEN 15220

SLOVENSKI STANDARD
01-januar-2024
Nadomešča:
SIST EN 15220:2016
Železniške naprave - Kazalniki zavor
Railway applications - Brake indicators
Bahnanwendungen - Bremsanzeigevorrichtungen
Applications ferroviaires - Indicateurs de freins
Ta slovenski standard je istoveten z: prEN 15220
ICS:
45.040 Materiali in deli za železniško Materials and components
tehniko for railway engineering
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2023
ICS Will supersede EN 15220:2016
English Version
Railway applications - Brake indicators
Applications ferroviaires - Indicateurs de freins Bahnanwendungen - Bremsanzeigevorrichtungen
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 256.
If this draft becomes a European Standard, CEN 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.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 15220:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Symbols and abbreviated terms . 6
5 Requirements . 6
5.1 Functional requirements. 6
5.1.1 General . 6
5.1.2 Application/release status . 6
5.1.3 Lubrication (pneumatic brake indicator) . 6
5.1.4 Leakage (pneumatic brake indicator) . 6
5.1.5 Electrical characteristics . 6
5.2 Operating conditions . 7
5.2.1 Shock and vibration . 7
5.2.2 Altitude . 7
5.2.3 Ambient temperature . 7
5.2.4 Humidity . 7
5.2.5 Rain . 7
5.2.6 Snow, ice and hail . 7
5.2.7 Solar radiation . 8
5.2.8 Pollution . 8
5.2.9 Specific requirements for pneumatic parts of brake indicators . 8
5.2.10 Specific requirements for electrical parts of brake indicators . 8
5.3 Design requirements . 9
5.3.1 External appearance . 9
5.3.2 Fire/smoke behaviour . 9
5.3.3 Pneumatic connections . 9
5.3.4 Electric connections and contacts . 9
5.3.5 Space envelope . 9
5.3.6 Indicator window . 9
6 Type test methods . 9
6.1 Sampling for type test . 9
6.2 Test requirements . 10
6.3 Test procedure . 10
6.3.1 Principle . 10
6.3.2 Check of physical and geometrical characteristics . 11
6.3.3 Pressure test (water pressure) . 11
6.3.4 Protection against ingress of dust and water . 11
6.3.5 Insulation test . 12
6.3.6 Dielectric strength . 12
6.3.7 Tightness test . 12
6.3.8 Application/release status control . 15
6.3.9 Vibration test . 16
6.3.10 Resistance to shock test . 16
6.3.11 Endurance at ambient temperature test . 17
6.3.12 Corrosion test . 17
6.3.13 Fire/smoke behaviour . 18
6.3.14 Examination . 18
7 In-service assessment . 18
8 Marking . 18
Annex A (informative) Brake indicator and parking brake indicator overall dimensions . 19
Annex B (informative) In-service assessment . 24

European foreword
This document (prEN 15220:2023) has been prepared by Technical Committee CEN/TC 256 “Railway
applications”, the secretariat of which is held by DIN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 15220:2016.
- Scope has been modified;
- Normative references have been updated;
- Clause 5 “Requirements” has been revised and restructured;
- Clause 6 “Type test methods” has been revised;
- Clause 7 “In Service assessment” has been revised and restructured (new informative Annex B
added);
- Clause 8 “Routine tests” has been deleted;
- Clause 9 “Designation” has been deleted;
- Annex ZA has been updated.
1 Scope
This document specifies the requirements for the function, design, performance and testing of brake
indicators. It applies to brake indicators visible from the outside of the rail vehicle.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 45545-2:2020, Railway applications - Fire protection on railway vehicles - Part 2: Requirements for
fire behavior of materials and components
EN 50121-3-2:2016, Railway applications - Electromagnetic compatibility - Part 3-2: Rolling stock -
Apparatus
EN 50125-1:2014, Railway applications - Environmental conditions for equipment - Part 1: Rolling stock
and on-board equipment
EN 50155:2021, Railway applications - Rolling stock - Electronic equipment
EN 60529:1991+A1:2000, Degrees of protection provided by enclosures (IP Code)
(IEC 60529:1989+A1:1999+A2:2013)
EN 60721-3-5:1997, Classification of environmental conditions - Part 3: Classification of groups of
environmental parameters and their severities - Section 5: Ground vehicle installations
EN 61373:2010, Railway applications - Rolling stock equipment - Shock and vibration tests
EN ISO 228-2:2003, Pipe threads where pressure-tight joints are not made on the threads - Part 2:
Verification by means of limit gauges (ISO 228-2:1987)
EN ISO 9227:2022, Corrosion tests in artificial atmospheres - Salt spray tests (ISO 9227:2022)
ISO 5208:2015, Industrial valves — Pressure testing of metallic valves
ISO 4975:2022, Railway applications — Braking system — Quality of compressed air for pneumatic
apparatus and systems
ISO 24478:2023, Railway applications — Braking — General vocabulary
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 24478:2023 and the following
apply.
3.1
uncertain braking status of a parking brake
parking brake indication becoming uncertain in case of isolated parking brake with possibility of
manual release or, e.g. lack of air pressure in a pneumatic brake system
3.2
application status of the brake unit
condition which indicates that the brake is applied or not completely released
3.3
release status of the brake unit
condition which indicates that the brake is released
4 Symbols and abbreviated terms
U nominal voltage
n
UV ultraviolet (UV irrad
...