What is BS EN 50121-2 - Emission of the whole railway system to the outside world about?
BS EN 50121 is a European standard that discusses electromagnetic compatibility for railway applications. BS EN 50121-2 provides the best industry guidance on the emission of the whole railway system to the outside world to reduce emission to its maximum.
BS EN 50121-2 is the second part of a multi-part series that is intended to define the electromagnetic environment of the whole railway system including urban mass transit and light rail system. BS EN 50121-2 describes the measurement method to verify the emissions and gives the cartography values of the fields most frequently encountered.
BS EN 50121-2 specifies the emission limits of the whole railway system to the outside world.
Note 1: The emission parameters refer to the measuring points defined in Clause 5. These emissions should be assumed to exist at all points in the vertical planes which are 10 m from centre lines of the outer electrified railway tracks, or 10 m from the fence of the substations.
Note 2: Also, the zones above and below the railway system may be affected by electromagnetic emissions and particular cases need to be considered individually.
Note 3: These specific provisions need to be used in conjunction with the general provisions in EN 50121-1.
Note 4: For existing railway lines, it is assumed that compliance with the emission requirements of EN 50121-3-1, EN 50121-3-2, EN 50121-4, and EN 50121-5 can ensure compliance with the emission values given in this part.
Note 5: For newly built railway systems it is best practice to provide compliance to the emission limits given in this part of the standard (as defined in the EMC plan according to EN 50121-1).
Who is BS EN 50121-2 - Emission of the whole railway system to the outside world for?
BS EN 50121-2 on the emission of the whole railway system to the outside world is useful for;
- Manufacturers of railways vehicles and their components
- Test centers
- Regulatory bodies
Why should you use BS EN 50121-2 - Emission of the whole railway system to the outside world?
Emission from the railway system is something that has been released or emitted into the world due to railway vehicles. Technically, an emission in anything that’s been released out into open. There may be cases in which radio or other railway external services with working frequencies below 150 kHz are in operation close to the railway system. The EMC management plan covers these cases and an adequate level of emission from the railway system on these working frequencies.
BS EN 50121-2 guideline assist you with emission limits on emission from the open railway system during train operation and radio frequency emission from railway substations to understand the emission released by the whole railway system to the outside world.
BS EN 50121-2 provides methods of measurement general and specific measurement parameters, acquisition methods, transients, and measuring conditions for measuring the emission from moving rolling stock and substations.
With compliance and obedience to BS EN 50121-2, you can properly assess the emission of the whole railway system to the outside world and reduce emission at its minimum. In addition, ensures the health and safety of humankind and the environment.
What’s changed since the last update?
BS EN 50121-2:2017 supersedes EN 50121-2:2015, which is withdrawn. BS EN 50121-2:2017 has deleted the Annex ZZ compared to EN 50121-2:2015.
