SIST EN 45545-5:2013/kFprA1:2015

Overview

SIST EN 45545-5:2013/kFprA1:2015 is a European standard that outlines the fire safety requirements for electrical equipment on railway vehicles. This includes not only conventional trains but also trolley buses, track-guided buses, and magnetic levitation (maglev) vehicles. The primary objective is to protect both passengers and staff by minimizing fire risks associated with electrical components, ensuring safety during the operation as well as in case of equipment failure or malfunction.

By establishing harmonized fire protection measures, this standard supports compliance with EU regulations and enhances public safety across different types of guided rail systems.

Key Topics

• Fire Prevention for Electrical Equipment:
  • Specifies requirements to lower the risk of fire initiation from electrical and electronic devices.
  • Addresses both operational usage and potential hazards due to technical defects.
• Protection and Placement of Batteries:
  • Defines requirements for batteries in auxiliary power supply systems, including the safe venting of gases, insulation, and protection against short circuits.
• Emergency Functionality:
  • Ensures that electrical emergency equipment remains operational until all occupants have been safely evacuated.
  • Incorporates references to complementary standards for emergency evacuation (see EN 45545-6).
• System Compatibility:
  • Applies to a range of rail-bound systems, covering trolley buses, track-guided buses, and advanced maglev vehicles.
• Compliance and Integration:
  • Aligns with essential requirements under European directives and supports compatibility with national and regional safety obligations.

Applications

The measures prescribed by SIST EN 45545-5:2013/kFprA1:2015 have practical relevance in several areas:

• Railway Vehicle Design: Engineering teams must incorporate fire safety into the design and layout of electrical systems, including the placement and protection of batteries.
• Maintenance and Upgrades: Maintenance protocols and retrofit projects must ensure continued compliance with fire safety requirements, particularly when replacing or upgrading electrical equipment.
• Public Transport Systems: Applicable to various public guided transport modes, ensuring the same high standards of fire protection whether the vehicle is a train, trolley bus, or maglev vehicle.
• Safety Auditing and Certification: Operators and manufacturers use this standard as a foundation for safety audits, risk assessments, and obtaining required certifications for vehicles operated within the EU and internationally.

Related Standards

• EN 45545 Series: SIST EN 45545-5 is part of the broader EN 45545 series that collectively addresses different aspects of fire safety on railway vehicles, including fire testing, fire safety management, and evacuation.
• EN 50547: Specifies requirements for railway applications - batteries for auxiliary power supply systems, referenced for battery-specific safety in electrical systems.
• EN 61140: Provides guidance on insulation and protection against electric shocks, relevant for supplementary cable insulation as referenced in battery supply circuits.
• EN 45545-6: Details requirements for fire safety in emergency situations, particularly the functionality of critical equipment during evacuation.

Conclusion

Implementing SIST EN 45545-5:2013/kFprA1:2015 is vital for railway vehicle manufacturers, operators, and service providers aiming to ensure the highest standards of fire protection in electrical systems. By adhering to these requirements, stakeholders demonstrate a commitment to passenger and staff safety, support compliance with European legislation, and enhance the reliability and reputation of public rail transport systems.