What is EN 50155:2017

EN 50155:2017 is a widely recognized international standard that specifies the requirements for electronic equipment used on rolling stock, including trains and trams. This comprehensive standard covers various aspects such as environmental conditions, electrical safety, electromagnetic compatibility, and mechanical design. It ensures that electronic systems used in railway applications meet essential criteria for reliability, durability, and performance.

The Importance of EN 50155:2017 Compliance

Compliance with EN 50155:2017 is crucial for railway operators and manufacturers of electronic equipment. This standard ensures that the equipment installed on trains and trams can withstand the demanding conditions of operating in a railway environment. Railway systems are subjected to extreme temperatures, vibrations, shocks, and humidity. Without compliance to this standard, there is an increased risk of equipment failure which may lead to service disruptions, safety hazards, or even accidents.

Key Requirements of EN 50155:2017

The standard outlines the specific requirements related to different aspects of electronic equipment used on rolling stock. Some key requirements include:

Temperature Range: The equipment should operate within specified temperature limits, ensuring reliable performance even in challenging climates.

Vibration and Shock Resistance: The equipment must be designed to withstand vibrations and shocks that occur during train operation without impairing its functionality.

Electromagnetic Compatibility: The equipment should not generate excessive electromagnetic emissions that could interfere with other onboard systems or external infrastructure.

Power Supply: The equipment must function properly within defined voltage ranges and tolerate power interruptions without adverse effects.

Complying with EN 50155:2017

To ensure compliance with EN 50155:2017, manufacturers of electronic equipment follow a rigorous design and testing process. This involves careful selection of components, extensive environmental and performance testing, documentation of test results, and adherence to specific design guidelines outlined in the standard. Additionally, regular maintenance and periodic inspections are required to ensure continued compliance throughout the lifecycle of the equipment.