DIN EN 55011:2010-05

This standard contains the German version of the European Standard EN 55011:2009. EN 55011:2009 takes over Edition 5 of the International Standard IEC/CISPR 11:2009 (2009 Edition) with common European modifications. The standard applies to the radio disturbance suppression of industrial, scientific, medical and domestic radio-frequency equipment and ISM RF applications in the frequency range from 150 kHz to 400 GHz; it specifies the required limits for interference voltages and interference field strength and the associated methods of measurement at a measuring station or at the installation and operating location of the equipment to be measured. However, measurements shall only be carried out at frequencies for which limits have been specified. Devices and equipment covered by this standard are divided into two classes, class A and class B, depending on the operating location (residential or industrial sector). They are also classified into group 2, if the generated radio-frequency energy is necessary for the treatment of materials and/or for examination or analysis. The other equipment covered by this standard is classified into group 1. The fundamental frequencies for ISM equipment which have been specified by the International Telecommunication Union and the additionally specified fundamental frequencies for individual CENELEC member states are also indicated in this standard (Table 1 contains frequencies specified by the ITU and Table ZB.1 contains the frequencies for ISM equipment which have been specified for the individual CENELEC member states). Once more special attention is drawn to the protection of safety radio services and particularly sensitive radio services. The corresponding frequency ranges of these services are indicated in Annex F and Annex G of this standard. The standard also contains specifications for the statistical determination of conformity and the consideration of uncertainty of the measurement equipment. With regard to the previous edition, the scope and the classification of the equipment covered by this standard have been restructured. It has been laid down that according to the understanding of the definition as it can be found in the International Telecommunication Union Radio Regulations ISM RF applications fall into the scope of this standard. In addition to the already existing specifications for arc welding equipment, specifications for resistance welding equipment have been added and, consequently, the content has been completed in this regard. Moreover, the current specifications for crackle interference are no longer needed. As a result of the aforementioned revisions, the limit specifications in this standard have been restructured and the tables have been revised accordingly. Moreover, several individual amendments have been carried out, for instance to details of the methods of measurement. Amongst other things the indication a reference measurement range is no longer needed when two measurement ranges can be chosen for the measurement of certain equipment. At DIN and VDE the responsible Subcommittee is UK 767.11 "EMV von Betriebsmitteln und Anlagen für häusliche, gewerbliche, industrielle, wissenschaftliche und medizinische Anwendungen, die beabsichtigt oder unbeabsichtigt HF erzeugen, sowie von Beleuchtungseinrichtungen" ("EMC of equipment for domestic, commercial, industrial, scientific and medical applications, which intentionally or unintentionally generate RF, and of lighting equipment") of the DKE (German Commission for Electrical, Electronic and Information Technologies).