EN 50155 (Railway Rolling Stock Electronics)
EN 50155 is the European standard that defines requirements for electronic equipment used on railway rolling stock. It covers conditions such as temperature, humidity, shock, vibration, power supply variation and electromagnetic compatibility, ensuring that onboard computers and control systems operate reliably in the demanding environment of rail vehicles.
Key Takeaways
EN 50155 sets the requirements for electronic equipment installed on railway rolling stock.
It addresses temperature, humidity, shock, vibration, power supply variation and electromagnetic compatibility.
Compliance indicates suitability for the harsh and safety critical rail environment.
It is widely specified for onboard computers, displays and control systems.
The standard consolidates the environmental, electrical and reliability requirements for electronics carried on trains and other rolling stock. It references related standards for specific tests, including shock, vibration and electromagnetic compatibility.
Equipment must tolerate wide temperature ranges, humidity, shock and vibration, as well as fluctuations and interruptions in the vehicle power supply. These conditions reflect the realities of continuous service on moving rail vehicles.
The standard sets expectations for reliability, documentation and type testing so that equipment can be trusted across long service lives and, where relevant, in safety related functions.
Rugged computers, panel PCs and displays intended for trains, trams and metro systems are designed and tested to EN 50155, giving rail operators confidence that the hardware will perform across the service life of the vehicle.
Frequently Asked Questions
It defines the requirements for electronic equipment used on railway rolling stock, covering environmental, power and electromagnetic conditions.
Temperature, humidity, shock, vibration, power supply variation and electromagnetic compatibility, among others.
Rail equipment faces continuous vibration, wide temperatures and unstable power, so compliance shows the hardware is built to operate reliably in that environment.
It applies to electronic equipment on railway rolling stock generally, including trains, trams and metro vehicles.
From Theory to Application
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