DIN EN 50121-5:2016-01

This standard contains the German version of the European Standard EN 50121-5:2015. This standard specifies limits and measuring methods for the emission and immunity of electrical and electronic apparatus and components which are foreseen to be installed in fixed power supply installations and apparatus such as substations. Filters are not covered within the scope. 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 limits for emission from substations are defined by reference to DIN EN 50121-2 (VDE 0115-121-2), and emission values based on measurements within the limits of the substation during normal operation and during the operation of switches are given for information in Annex A. The immunity tests cover the discharge of static electricity, irradiating high-frequency electromagnetic fields, fast transient electrical disturbances (pulse groups, burst), surge voltages, conducted disturbances induced by high-frequency fields, power frequency magnetic fields and damped vibrations. 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). Compared to the previous standard, the scope has been clarified and the previously undated references have been changed to dated references. In addition, the requirements for emission have been extended to the frequency range 1 GHz to 6 GHz and the requirements for immunity to the frequency range 5,1 GHz to 6 GHz. Finally, the limit values for radiated magnetic fields in the frequency range 9 kHz to 150 kHz have been deleted, as it was found that only a few susceptible devices are present outside the railway area and the reproducibility of the measurement procedure is low. 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.