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BSI 22/30394428 DC 2022

$13.70

BS ISO 24221. Railway Applications. Braking System. General Requirements

Published By Publication Date Number of Pages
BSI 2022 28
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PDF Catalog

PDF Pages PDF Title
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions and units
3.1 Terms and definitions
8 3.2 Units
4 Requirements
4.1 General requirements of the train brake system
9 4.2 General safety requirements
4.3 Requirements for the main brake system
4.3.1 General requirements
11 4.3.2 General functions on train level
13 4.3.3 Additional requirements at the vehicle level
14 4.4 Brake management
4.4.1 Brake blending at vehicle level
4.4.2 Independent dynamic brake
4.5 Additional brake systems
4.5.1 Dynamic braking
15 4.5.2 Independent direct braking (“direct brake”) for locomotives and traction units
17 4.6 Wheel slide protection
18 4.7 Enhancement of wheel/rail adhesion
19 4.8 Compatibility for rescue purposes
5 Calculation requirements
5.1 General aspects
5.2 Performance calculation
5.2.1 General
20 5.2.2 Calculations for degraded mode
5.3 Relevant load conditions
5.4 Service braking
5.5 Thermal capacity
5.5.1 General
5.5.2 Conditions
21 5.5.3 Structural integrity of the brake components
5.5.4 Stopping distance extension
5.5.5 Duty cycle
22 5.6 Wheel/rail adhesion
5.7 Parking brake
23 Annex€A (informative) Automatic air brake system
25 Annex€B (informative) Wheel/rail adhesion demand levels applied in Europe
27 Annex€C (informative) Relationship between this ISO standard and the local regulations in Japan
28 Bibliography
BSI 22/30394428 DC 2022
$13.70