BS EN 45545-4:2024
Railway applications. Fire protection on railway vehicles - Fire safety requirements for rolling stock design
- Standard No.
- BS EN 45545-4:2024
- Release Date
- 2024
- Published By
- British Standards Institution (BSI) GB / BSI
- Latest
- BS EN 45545-4:2024
- Introduction
Core Changes of Standard Update
Main revisions of the 2024 version of the standard compared with the 2013 version:
- Added visibility requirements for luggage racks (Clause 4.2.3)
- Deleted the original content of Clause 4.2.6
- Strengthened evacuation measures specifications (4.3.2.1/4.3.3.1)
- Added requirements for emergency signs (4.3.5) and emergency lighting (4.3.6)
Comparison of key requirements for fire protection design
Design elements 2013 version 2024 version Luggage Storage No visibility requirement Luggage stacking is prohibited in vehicles of Operation Category 4 (4.2.3) Emergency Exit Minimum size 600mm×400mm Increased to 700mm×550mm (4.3.3.1c) Temperature Control Surface temperature not specified Surface of equipment in non-cooking areas ≤60°C (4.2.1)
Technology Evolution Analysis
The standard is integrated and developed based on the existing specifications of UIC and European countries, with the following major technical upgrades:
- Material flame retardancy: Reference the latest test method of EN 45545-2:2020
- Smoke control: Linkage requirements with EN 45545-6:2013 fire management system
- Dual-track vehicles: Clarify the fire separation scheme for the upper and lower floors (Appendix A)
Implementation recommendations
Design phase
- Use E15 grade fire barrier to wrap the lower luggage area (4.2.3)
- Emergency exit tools must be visible when powered off (4.3.3.3e)
Maintenance phase
- Regularly check the dust accumulation on the heater housing (Appendix A.5)
- Ensure that the dust prevention design of the ventilation system is effective (Appendix A.4)
BS EN 45545-4:2024 Referenced Document
- EN 45545-1:2013 Railway applications - Fire protection on railway vehicles - Part 1: General
- EN 45545-3:2024 Railway applications - Fire protection on railway vehicles - Part 3: Fire resistance requirements for fire barriers
- EN 45545-6:2013 Railway applications - Fire protection on railway vehicles - Part 6: Fire control and management systems
- EN 45545-7:2013 Railway applications - Fire protection on railway vehicles - Part 7: Fire safety requirements for flammable liquid and flammable gas installations
- ISO 3864-1:2011 Graphical symbols - Safety colours and safety signs - Part 1: Design principles for safety signs and safety markings
BS EN 45545-4:2024 history
- 2024 BS EN 45545-4:2024 Railway applications. Fire protection on railway vehicles - Fire safety requirements for rolling stock design
- 0000 BS EN 45545-4:2013(2015)
- 2013 BS EN 45545-4:2013 Railway applications. Fire protection on railway vehicles. Fire safety requirements for rolling stock design
- 2009 BS DD CEN/TS 45545-4:2009 Railway applications — Fire protection on railway vehicles Part 4: Fire safety requirements for railway rolling stock design
- 1999 BS 6853:1999 Code of practice for fire precautions in the design and construction of passenger carrying trains
