How to Pass Railway EMC Testing to EN 50121
Railway environment is one of the most challenging for electronic designers due to its intrinsic harshness and volatility. For this reason, a dedicated EN 50121 EMC standard has been developed, which is significantly more severe in terms of Immunity test levels and pass criteria, compared to residential EMC. In this video, I test an installation designed to meet this standard in a test house.
This video is an example of EMC testing in-field, and I'm very grateful to Intertek staff for the permission to film on their site!
EN 50121-4:
https://knowledge.bsigroup.com/produc...
TIMELINE:
00:00 - Start
01:10 - EN 50121-4 Overview
06:10 - Radiated Emissions Testing
11:35 - Conducted Emissions Testing
12:11 - Radiated Immunity Testing
15:01 - Voltage Harmonics and Flicker
15:32 - Conducted Immunity
19:32 - Fast Transient Immunity
23:20 - Surge Immunity
24:45 - Voltage Dips and Interruptions
26:18 - Magnetic Field Immunity
27:18 - Electrostatic Discharge (ESD)