Railway applications - Braking - Empty-loaded changeover devices

This document is applicable to empty-loaded changeover devices. The purpose of such devices is the generation of a load-related signal which causes the brake performance to be adjusted to the current vehicle mass.
The manually operated empty-loaded changeover devices change their output signal according to the position of the handles which together with the associated changeover plates serve as interfaces. The changeover plates read the required information for the operation of the empty-loaded changeover devices, i.e. brake weights for each position and the relevant changeover mass of the vehicle.
Automatic empty-loaded changeover devices sense a certain load threshold of the vehicle to automatically adjust the output signal when the mass of a vehicle reaches a defined value. This threshold is the changeover mass. Below this mass the vehicle’s brake system provides a reduced brake force. For the changeover mass or more the high brake force applies.
This document specifies the requirements for the design, testing and quality assurance of empty-loaded changeover devices.

Bahnanwendungen - Bremse - Leer-Beladen-Umstellvorrichtungen

Dieses Dokument ist für Leer-Beladen-Umstellvorrichtungen anzuwenden. Der Zweck solcher Vorrichtungen ist die Erzeugung eines lastabhängigen Signals, das die Anpassung des Bremsvermögens an die jeweilige Fahrzeugmasse bewirkt.
Die handbetätigten Leer-Beladen-Umstellvorrichtungen ändern ihr Ausgangssignal je nach Stellung der Handgriffe, die zusammen mit den zugehörigen Schildlagern als Schnittstellen dienen. Die Schildlager lesen die für die Betätigung der Leer-Beladen-Umstellvorrichtungen erforderlichen Informationen, d. h. Bremsgewichte für jede Stellung und die entsprechende Umstellmasse des Fahrzeugs.
Automatische Leer-Beladen-Umstellvorrichtungen tasten einen bestimmten Schwellenwert der Fahrzeuglast ab, um das Ausgangssignal automatisch anzupassen, wenn die Fahrzeugmasse einen festgelegten Wert erreicht. Dieser Schwellenwert ist die Umstellmasse. Unterhalb dieser Masse stellt das Bremssystem des Fahrzeugs eine reduzierte Bremskraft bereit. Bei der Umstellmasse oder höheren Massen wird die hohe Bremskraft angewendet.
Dieses Dokument legt die Anforderungen an die Konstruktion, die Prüfung und die Qualitätssicherung von Leer-Beladen-Umstellvorrichtungen fest.

Applications ferroviaires - Freinage - Dispositifs de changement de régime vide-chargé

Le présent document s’applique aux dispositifs de changement de régime « Vide-Chargé ». La finalité de ces dispositifs est la production d’un signal dépendant de la charge qui permet l’ajustement des performances de freinage à la masse effective du véhicule.
Les dispositifs de changement de régime « Vide-Chargé » à commande manuelle modifient leur signal de sortie selon la position des poignées qui, avec les plaques de commutation associées, servent d’interfaces. Les plaques de commutation indiquent les valeurs nécessaires lors de l’exploitation des dispositifs de changement de régime « Vide-Chargé », c’est-à-dire les masses freinées pour chaque position et la masse de changement de régime correspondante du véhicule.
Les dispositifs de changement de régime Vide-Chargé automatiques détectent un certain seuil de charge du véhicule afin d’ajuster automatiquement le signal de sortie lorsque la masse du véhicule atteint une valeur déterminée. Ce seuil est la masse de changement de régime. En dessous de cette masse, le système de freinage du véhicule fournit un effort de freinage réduit. Pour la masse de changement de régime ou pour une masse supérieure, l’effort de freinage élevé est appliqué.
Le présent document spécifie les exigences relatives à la conception, aux essais et à l’assurance qualité des dispositifs de changement de régime « Vide-Chargé ».

Železniške naprave - Zavore - Avtomatsko menjalo "naloženo-prazno"

General Information

Status
Published
Publication Date
09-Feb-2021
Withdrawal Date
30-Aug-2021
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
10-Feb-2021
Due Date
18-Dec-2020
Completion Date
10-Feb-2021

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SLOVENSKI STANDARD
01-april-2021
Nadomešča:
SIST EN 15624:2009+A1:2010
Železniške naprave - Zavore - Avtomatsko menjalo "naloženo-prazno"
Railway applications - Braking - Empty-loaded changeover devices
Bahnanwendungen- Bremse - Leer-Beladen-Umstellvorrichtungen
Applications ferroviaires - Freinage - Dispositifs de changement de régime Vide-Chargé
Ta slovenski standard je istoveten z: EN 15624:2021
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.

EN 15624
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2021
EUROPÄISCHE NORM
ICS 45.040 Supersedes EN 15624:2008+A1:2010
English Version
Railway applications - Braking - Empty-loaded changeover
devices
Applications ferroviaires - Freinage - Dispositifs de Bahnanwendungen - Bremse - Leer-Beladen-
changement de régime vide-chargé Umstellvorrichtungen
This European Standard was approved by CEN on 20 December 2020.

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. 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 CEN
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 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, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 15624:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Design and manufacture . 7
4.1 General . 7
4.2 Functional requirements. 7
4.2.1 General . 7
4.2.2 Automatic empty-loaded changeover device . 8
4.2.3 Pneumatic device characteristics. 9
4.2.4 Automatic hydraulic to pneumatic converter. 10
4.2.5 Automatic elastomeric to pneumatic converter . 10
4.2.6 Components for operation of the manual empty-loaded changeover device . 10
4.3 Shock and vibration . 11
4.4 Environmental conditions . 11
4.4.1 General . 11
4.4.2 Ambient temperature . 11
4.4.3 Altitude . 11
4.4.4 Humidity . 11
4.4.5 Rain . 12
4.4.6 Snow, ice and hail . 12
4.4.7 Solar radiation . 12
4.4.8 Pollution . 12
4.5 Design requirements regarding pressure stress . 12
4.6 Tightness . 12
4.7 Service life . 13
4.8 Compressed air quality . 13
4.9 Fire behaviour . 13
4.10 External appearance . 13
4.11 Pneumatic interfaces . 13
5 Type tests . 13
5.1 General . 13
5.2 Individual automatic empty-loaded changeover device type tests . 14
5.2.1 Test bench for individual automatic empty-loaded changeover device type tests . 14
5.2.2 Sampling for type tests . 14
5.2.3 Test requirements . 14
5.2.4 Check of physical and geometrical characteristics . 15
5.2.5 Tightness . 15
5.2.6 Changeover operation – empty to loaded . 16
5.2.7 Changeover operation – loaded to empty . 17
5.2.8 Response time – empty to loaded . 17
5.2.9 Response time – loaded to empty . 18
5.2.10 Shock and vibration tests . 18
5.2.11 Operation at extreme temperatures . 18
6 In-service assessment. 19
7 Designation . 20
8 Identification and marking . 20
8.1 Identification . 20
8.2 Changeover plate for the manual empty-loaded changeover device . 20
Annex A (informative) Assessment of an empty-loaded changeover device when fitted to a
vehicle . 21
A.1 General . 21
A.2 Design acceptance testing set-up . 21
A.3 Static testing . 21
A.3.1 Vehicle requirements . 21
A.3.2 Test procedures . 21
A.3.2.1 Changeover setting of automatic empty-loaded changeover devices . 21
A.3.2.1.1 Procedure . 21
A.3.2.1.2 Pass/fail criteria . 21
A.3.2.2 Effects on brake characteristics . 22
A.3.2.2.1 General . 22
A.3.2.2.2 Procedure . 22
A.3.2.2.3 Pass/fail criteria . 22
A.4 Running tests . 22
A.4.1 General . 22
A.4.2 Pneumatic empty-loaded changeover device – Air consumption . 22
A.4.2.1 Procedure . 22
A.4.2.2 Pass/fail criteria . 22
A.4.3 Pneumatic empty-loaded changeover device – Impact of vibrations on the output
signal . 23
A.4.3.1 Procedure . 23
A.4.3.2 Pass/fail criteria . 23
Annex B (informative) Examples of manual empty-loaded changeover device handles and
changeover plates . 24
Annex C (informative) Test bench diagram . 26
Annex D (normative) In-service assessment . 27
Annex ZA (informative) Relationship between this European Standard and the Essential
Requirements of EU Directive 2016/797/EU aimed to be covered. 28
Bibliography .
...

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