Significant Contents
Essentially, EN 50155 outlines:
- Operating conditions (regarding environment, electrics, EMC)
- Technical construction features (components, construction, development, etc.)
- Reliability, maintenance, service life
- Documentation and testing
![railway_Dokumentation_Pruefung__Labor_Tech07857_1_2000x1125.jpg](/medias/200-railway-Dokumentation-Pruefung-Labor-Tech07857-1-2000x1125.jpg?context=bWFzdGVyfGltYWdlc3wxNzU0fGltYWdlL2pwZWd8YURreEwyZ3pPUzh4TkRFM056ZzNOell5TWpneE5DOHlNREJmY21GcGJIZGhlVjlFYjJ0MWJXVnVkR0YwYVc5dVgxQnlkV1ZtZFc1blgxOU1ZV0p2Y2w5VVpXTm9NRGM0TlRkZk1WOHlNREF3ZURFeE1qVXVhbkJufGVhYWVhZmRmOGY2YmYwNjJiYzA3YzE3MGUyNWU0NWZjOTgxNTNkMzZhODU5ZjFiZGFjNWMzZjEwMjYxMmU4OTg)
References and Classification
EN 50155 refers to a wide range of testing processes and standards (e.g., EN 61373 – Vibration and Shock or EN 50121-3-2 – EMC) and classifies their results.
![railway_Schockpruefung_Labor_Tech07822_2000x1125.jpg](/medias/200-railway-Schockpruefung-Labor-Tech07822-2000x1125.jpg?context=bWFzdGVyfGltYWdlc3wxNzE4fGltYWdlL2pwZWd8YURJNEwyaG1ZaTh4TkRFM056ZzVOVE14TnpVek5DOHlNREJmY21GcGJIZGhlVjlUWTJodlkydHdjblZsWm5WdVoxOU1ZV0p2Y2w5VVpXTm9NRGM0TWpKZk1qQXdNSGd4TVRJMUxtcHdad3xkYTA1MmU4YTE5MzA1ODBlZGNjOTAwMjE3MTUxOTJiYmQ1YzgzOWFkY2RjMjhkNTI1ODFmMWQxYmQzNGM4OTFj)
Requirements and Guidelines
Depending on the component, different requirements and guidelines must be taken into account. The minimum factors to be considered are:
- Temperature
- Vibration and impact
- Relative humidity
![railway_Spannungsabfall_Labor_Tech07896a_2000x1125.jpg](/medias/200-railway-Spannungsabfall-Labor-Tech07896a-2000x1125.jpg?context=bWFzdGVyfGltYWdlc3wxNzc1fGltYWdlL2pwZWd8YURJd0wyZzJPQzh4TkRFM01Ea3lPRGcwTURjek5DOHlNREJmY21GcGJIZGhlVjlUY0dGdWJuVnVaM05oWW1aaGJHeGZUR0ZpYjNKZlZHVmphREEzT0RrMllWOHlNREF3ZURFeE1qVXVhbkJufDIyYmI2YTMyOTc3YTE3MmEwNGU0ZjM4OGU5MzNjZDQxOWJmYTQzOGE3YWM0NGJmN2Y0YmU4YjhlZjU4MzM5NTQ)
Electronic components
For electrical components (relays, optocouplers, signal conditioning modules, fieldbus systems, etc.), the electrical operating conditions must be considered before all else. These include:
- Power supply fluctuations and interruptions
- EMC (Immunity to interference and emission of interference)
- Selection of the subassemblies and development criteria
![railway_s_Labor_Vibrationsprüfung_000_xx_2000x1125.jpg](/medias/200-railway-s-Labor-Vibrationspr-fung-000-xx-2000x1125.jpg?context=bWFzdGVyfGltYWdlc3wxNDMzfGltYWdlL2pwZWd8YUdJNEwyaGhaQzh4TkRFM056ZzNPRGt6TXpVek5DOHlNREJmY21GcGJIZGhlVjl6WDB4aFltOXlYMVpwWW5KaGRHbHZibk53Y3NPOFpuVnVaMTh3TURCZmVIaGZNakF3TUhneE1USTFMbXB3Wnd8YjUyMWM0ZmQwMWYxZDA1NTQyNGZmMWI0NzBiNTMwNmRiYjk5MWVmZWZjZjMyNzc1NzI0ZWQwZTJmYWI4MDNlMA)