EN 15625:2008+A1:2010

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Železniške naprave - Zavore - Naprave za samodejno zaznavanje spremembe obtežbeBahnanwendungen - Bremse - Automatisch kontinuierlich wirkende LasterfassungseinrichtungenApplications ferroviaires - Freinage - Dispositifs de pesée variable automatiquesRailway applications - Braking - Automatic variable load sensing devices45.040Materiali in deli za železniško tehnikoMaterials and components for railway engineeringICS:Ta slovenski standard je istoveten z:EN 15625:2008+A1:2010SIST EN 15625:2009+A1:2011en,fr,de01-april-2011SIST EN 15625:2009+A1:2011SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15625:2008+A1
October 2010 ICS 45.060.01 Supersedes EN 15625:2008English Version
Railway applications - Braking - Automatic variable load sensing devices
Applications ferroviaires - Freinage - Dispositifs de pesée variable automatiques
Bahnanwendungen - Bremse - Automatisch kontinuierlich wirkende Lasterfassungseinrichtungen This European Standard was approved by CEN on 13 September 2008 and includes Amendment 1 approved by CEN on 30 August 2010.
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 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 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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Assessment of an automatic variable load sensing device when fitted to a vehicle. 23A.1 Vehicle assessment – Testing set up . 23A.2 Design acceptance testing set up . 23A.3 Running tests . 23A.3.1 General . 23A.3.2 Pneumatic automatic variable load sensing device – Air consumption . 23A.3.3 Automatic variable load sensing device – Output signal variation . 24Annex ZA (informative)
!!!!Relationship between this European Standard and the Essential Requirements of EU Directive 2008/57/EC of the European Parliament and of the Council of 17 June 2008 on the interoperability of the rail system within the Community (Recast)"""" . 25!!!!deleted text"""" Bibliography . 31 SIST EN 15625:2009+A1:2011

Key 1 automatic variable load sensing device 2 F, mechanical force, generated by a share of the vehicle weight 3 supply pressure, typically taken from the distributor auxiliary reservoir 4 Lcp, output signal pressure Figure 1 — Principles of operation of the automatic variable load sensing device 4.2.2 Characteristics of weighing valves Two characteristics of weighing valves are defined:  type 1: (0,8 ± 0,1) bar/10 kN (see Figure 2);  type 3: (1,0 ± 0,1) bar/10 kN (see Figure 3). The characteristics for type 1 and type 3 shall be tested in accordance with 6.2.6. NOTE These types are recommended for new interoperable freight wagons. For applications other than interoperable freight wagons other characteristics may be used by agreement between the manufacturer and the customer.
Key 1 characteristic (nominal value) 2 upper limit of tolerance 3 lower limit of tolerance Figure 2 — Characteristic of the automatic variable load sensing device type 1
Key 1 characteristic (nominal value) 2 upper limit of tolerance 3 lower limit of tolerance Figure 3 — Characteristic of the automatic variable load sensing device type 3 SIST EN 15625:2009+A1:2011

70 °C without any deviation from the technical requirements specified in Clause 4;  at – 40 °C ≤ environmental temperature < – 25 °C with allowed deviation from the technical requirements specified in this European Standard but without affecting the function of the automatic variable load sensing device. Deviations from the technical requirement when testing at extremes are defined in 6.2.7. The purchaser can specify higher or lower extreme temperature limit values if operational constraints demand it. In this case the temperature limit values used in the extreme temperature tests of 6.2.7 shall be changed accordingly. 4.4.3 Other environmental conditions 4.4.3.1 General The following environmental conditions shall be considered in the design of the automatic variable load sensing device. It shall be demonstrated that these environmental conditions have been taken into account in the design of the automatic variable load sensing device. It is sufficient for the supplier to make a declaration of conformity stating how the environmental conditions in the following clauses have been taken into account. If not specifically required to be tested as part of the type testing requirements in Clause 6, suitable tests and/or design assessments considering the effect of the following environmental conditions on the automatic variable load sensing device, shall be used in the development/design proving of the automatic variable load sensing device, prior to type testing. 4.4.3.2 Altitude The automatic variable load sensing device shall be able to operate without restrictions up to an altitude of 2 000 m. 4.4.3.3 Humidity The following external humidity levels shall be considered:  yearly average: ≤ 75 % relative humidity;  on 30 days in the year continuously: between 75 % and 95 % relative humidity;  on the other days occasionally: between 95 % and 100 % relative humidity;  maximum absolute humidity: 30 g/m3 occurring in tunnels. An operationally caused infrequent and slight moisture condensation shall not lead to any malfunction or failure. SIST EN 15625:2009+A1:2011
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