DIN EN 50121-3-2:2017-11

This standard contains the German version of the European Standard EN 50121-3-2:2016. It specifies limits and measuring methods for the emission and immunity of electrical and electronic apparatus intended for use on railway rolling stock. The requirements apply together with DIN EN 50121-1 (VDE 0115-121-1) and are specified for the frequency range 0 Hz to 400 GHz. The immunity tests cover the discharge of static electricity, irradiating high-frequency electromagnetic fields including those of digital radio telephones or cell phones, fast transient electrical disturbances (pulse groups, burst), surge voltages and conducted disturbances induced by high-frequency fields. The description of the test procedures shall be found in the basic standards specified at the relevant place. The evaluation criteria for immunity testing are defined by reference to DIN EN 50121-1 (VDE 0115-121-1). Typical examples for the apparatus that are covered in this standard are listed in Annex A and Annex B describes a measurement setup for conducted disturbances in the frequency range from 9 kHz to 30 MHz generated by power converters. Compared to the previous standard, unnecessary abbreviations have been removed from 3.2 and Table 3 with specifications for emission via the housing has been replaced by a reference in Clause 7 to EN 61000-6-4, Table 1. In addition, specifications regarding the measuring distance have been included in Clause 7, along with the fact that traction and auxiliary converters with a power above 50 kVA cannot be tested individually and are included in the testing of the rail vehicle as a whole in accordance with EN 50121-3-1. Finally, Annex ZZ has been adapted to the new requirements. The Annex is intended to establish the relationship between the essential requirements of the European EMC Directive and the specifications of the present standard. The responsible committee is DKE/UK 767.12 "Funkstörungen durch Hochspannungsfreileitungen und -anlagen und EMV von Bahnen" ("Radio interference by high voltage overhead lines and installations and EMC of railways") of the DKE (German Commission for Electrical, Electronic and Information Technologies) at DIN and VDE.