EN 50121-2 PDF

EMC Management lays down the framework for demonstrating EMC in the railway environment, and testing can be of paramount importance to close out hazards. EN X is divided into parts Part 1 provides a general introduction, describes the railway environment and defines the management of EMC between rolling stock and the infrastructure; it calls upon EN Part 2 is concerned with the interface between the railway system and the outside world. It defines limits of emissions and appropriate measurement techniques. Part 3 is sub-divided covers the train and complete vehicle, emission limits and measurement techniques are defined covers train-borne apparatus. Emission limits, immunity levels and measurement methods are specified.

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Product Details Executive summary Emission and immunity aspects of electromagnetic compatibility for electrical and electronic apparatus intended for use on railway rolling stock. Abstract This European Standard applies to emission and immunity aspects of electromagnetic compatibility for electrical and electronic apparatus intended for use on railway rolling stock.

The frequency range considered is from D. Testing is not defined for frequencies above 1 GHz. This standard takes into account the internal environment of the railway rolling stock and the external environment of the railway, and interference to the apparatus from equipment such as hand-held radio transmitters.

The emission and immunity limits in this Standard do not apply at the communication frequency, if a port is intended to transmit or receive for the purpose of radio communication.

The objective of this standard is to define limits and test methods for electromagnetic emissions and immunity test requirements in relation to conducted and radiated disturbances. These limits and tests represent essential electromagnetic compatibility requirements. Emission requirements have been selected so as to ensure that disturbances generated by the apparatus operated normally on railway rolling stock do not exceed a level which could prevent other apparatus from operating as intended.

The immunity requirements have been selected so as to ensure an adequate level of immunity for rolling stock apparatus.

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