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TitleUIC 540
TagsBrake Train Vehicles Machines Mechanical Engineering
File Size634.0 KB
Total Pages28
Table of Contents
                            Summary
1 - Conditions with which air brakes for freight trains and passenger trains must comply to be ap...
2 - Conditions governing air brakes approved in international traffic prior to 1.1.1982
3 - Procedure to be followed for the approval of air brakes in international traffic
Appendix A - Air brakes for freight trains and passenger trains approved before 1.1.1982 in inter...
	A.1 - Air brakes for freight trains approved before 1.1.1982
	A.2 - Air brakes for passenger trains approved before 1.1.1982
Appendix B - Table of conditions
Appendix C - Air brakes for freight and passenger trains approved in international traffic after ...
Appendix D - Conditions for air brakes approved in international traffic before the date of imple...
	D.1 - Special conditions for brake systems approved in international traffic after 1 January 1953
	D.2 - Special conditions for brake systems approved in international traffic prior to 1 January 1953
	D.3 - Application procedure for the conditions applicable to brakes introduced before 1stJanuary...
Bibliography
                        
Document Text Contents
Page 1

UIC CODE 5 4 0

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5th edition, November 2006Translation
Brakes - Air brakes for freight trains and passenger trains
Freins - Freins à air comprimé pour trains de marchandises et trains de voyageurs
Bremsen - Druckluftbremsen für Güter- und Personenzüge

Page 2

Leaflet to be classified in Volume:
V - Rolling stock

Application:
With effect from 1 November 2006
All members of the International Union of Railways

Record of updates

1st edition, August 1954 First issue

3rd edition, January 1982

4th edition, June 2002 Retyped in FrameMaker. Incorporation of previous amendments
(letter dated 28.7.2000 sent by Chairman of Sub-Commission 5T).
Titles added to points 1.10, 1.12, 1.13, 1.19.
Change to title of point 2.
Point 3.4 added.
Titles changed in Appendix A.
Knorr braking system added to the two tables in Appendix A.
SAB-Wabco braking system added to the table in Appendix C.

5th edition, November 2006 Publication of Appendix A on the UIC website and transfor of
Appendix C to UIC Leaflet 543 (Appendix E, also published on the
UIC website)

The person responsible for this leaflet is named in the UIC Code
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Page 14

Appendices
Appendix C - Air brakes for freight and passenger trains
approved in international traffic after
1.1.1982

These air brakes are documented in UIC Leaflet 543, Appendix E and can be consulted on the UIC
website: http://www.uic.asso.fr/ Activities/Technology&Research/Products.
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http://www.uic.asso.fr/

Page 15

Appendices
Appendix D - Conditions for air brakes approved in
international traffic before the date of
implementation of this leaflet

D.1 - Special conditions for brake systems approved in international
traffic after 1 January 1953

D.1.1 - The brake must be automatic; the use of compressed air must be sufficient for the working of
the brake, and this only with one pipe system.

However, another source of energy than compressed air may be used for the brake control (electricity
for instance), provided that the latter may also be worked by means of compressed air without it being
necessary to perform any manipulation on the vehicle, and that it complies with all the conditions
below.

D.1.2 - The new air brakes must be capable of working without difficulty together with those already
approved.

D.1.3 - The normal working pressure is 5 bar in the brake pipe, although a decrease or increase in
this working pressure of less than 1 bar must not disrupt the operation of the brake.

D.1.4 - It must be possible for the brake to be activated by means of any of the driver’s brake valves
(for example, Westinghouse type) now used on the european railways.

D.1.5 - The brake must be ready-for-use and released when the working pressure is applied.

The application must be obtained by decrease of the brake-pipe pressure, and the release by the
pressure increase thus obtained. It is permitted for the brake to be released completely before
pressure in the brake pipe has attained the normal value.

The brake must not come back to the ready-for-use position as long as the pressure at the brake
cylinder is more than or equal to 0,300 bar. On the other hand, the brake must have come back to its
ready-for-use position at the latest when the pressure at the brake pipe has attained a value equal to
4,850 bar.

D.1.6 - The brake must permit emergency application by a sudden rather considerable exhaust of the
air contained in the pipe, as well as ordinary progressive application till full application, and
non-progressive full application by slow exhaust of the air from the pipe.

At the time of release, it must be possible to obtain gradations by interrupting the re-filling of the pipe.

D.1.7 - In order to obtain a full application as from the normal working pressure, the pressure in the
pipe must be reduced by 1,3 and 1,6. bar.

The maximum pressure thus obtained must be between 3,7 and 3,9 bar. If the brake equipment
includes a device giving several braking powers by variation of the pressure in the brake cylinder, this
regulation is applicable to the pressure obtained under the system which gives the highest braking
power.
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Page 27

Sub-Commission for Braking. - Question 5/T/36 - Conditions for the acceptance of brake equipment.
a) ÖBB request for modification to the OERLIKON ESG distributor, Paris, January 1992

Sub-Commission for Braking. - Question 5/T/36 - Conditions for the acceptance of brake equipment.
a) DB request for transformation of KEa 3,8 distributors into KEad distributors (exchange of HdB
maximum-pressure limited for KEd version of KEd), Paris, January 1993

Sub-Committee for Braking. - Question 5/T/36 - Conditions for the acceptance of brake equipment. a)
BR request for approval of the DMD3 version of the Davies & Metcalfe Est 3f distributor for passenger
and freight trains (reproduction of the Oerlikon Est 3f distributor), Paris, January 1995

Sub-Committee for Braking - Study 5/T/FIC - Revision of UIC Leaflets. e) Amendments to Points 1.7
and 1.17 of Leaflet 540, Paris, January 1995

Sub-Committee for Braking - Study 5/T/36 - Conditions governing approval of brake components.
Approval of the Fa. SAB-WABCO automatic brake valve designs SW 4, SW4C, SW 4/3 for freight and
passenger trains, Saint Jean de Maurienne, November 1996

Sub-Committee for Braking - Study 5/T/36 - Application from JŽ for approval of the MZT-HEPOS brake
valve designs MH3f for freight and passenger trains, Rotenburg (Wümme), October 1997

Sub-Committee for Braking - Study 5/T/36 - Approval of the Fa Knorr automatic brake valve designs
KE 0d-483, KE 1d-483, KE 2d-483 for freight and passenger trains, Minden, May 1998

Sub-Committee for Braking - Study 5/T/FIC - Revision of UIC leaflets. Incorporation of the new
Point 3.4 into Leaflet 540, Paris, January 1999

Sub-Commission for Braking - Study 5/T/FIC - Revision of UIC leaflets. Change of approval deadline
to 1.1.2002 (see Point 3.4 of UIC Leaflet 543), Paris, June 1999

SG5 "Braking and Running gear" - Revision of UIC Leaflets, March 2006
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Page 28

Warning

No part of this publication may be copied, reproduced or distributed by any means whatsoever, including
electronic, except for private and individual use, without the express permission of the International Union of
Railways (UIC). The same applies for translation, adaptation or transformation, arrangement or reproduction by
any method or procedure whatsoever. The sole exceptions - noting the author's name and the source - are
"analyses and brief quotations justified by the critical, argumentative, educational, scientific or informative nature
of the publication into which they are incorporated".
(Articles L 122-4 and L122-5 of the French Intellectual Property Code).
 International Union of Railways (UIC) - Paris, 2006

Printed by the International Union of Railways (UIC)
16, rue Jean Rey 75015 Paris - France, November 2006
Dépôt Légal November 2006
ISBN 2-7461-1171-3 (French version)
ISBN 2-7461-1173-X (German version)
ISBN 2-7461-1172-1 (English version)
540
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