DIN EN 50121-4:2016-01

This standard contains the German version of the European Standard EN 50121-4:2015. It specifies limits and measuring methods for the emission and immunity of the signaling and telecommunications (S&T-) apparatus and components. 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, conducted disturbances induced by high-frequency fields, and power frequency and pulse magnetic 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). Compared to the previous standard, the scope has been clarified and the previously undated references have been changed to dated references. Furthermore, a new definition has been included in Clause 3. Finally, the requirements for emission have been extended to frequency range 1 GHz to 6 GHz and the requirements for immunity to the frequency range 5,1 GHz to 6 GHz. 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.