CISPR 11
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CISPR 11 is analog standard to European standard EN 55011. This is the standard that is very often referenced in all European EMC standards, defining measurement methods, measurement equipment, limit lines and interpretation of applicability of limit lines, starting from household appliances to medical devices.
EN 55011:2009 Industrial, scientific and medical equipment– Radio-frequency disturbance characteristics Limits and methods of measurement
Scope
International standard EN 55011:2009 is applicable to: Industrial, scientific and medical (ISM) equipment. The frequency range of ISM equipment shall not exceed 400 GHz; Household equipment and similar equipment designed to generate and/or use locally radio-frequency energy;
Classification
International standard EN 55011:2009 separates all equipment into two groups– Group 1 and Group 2, each group is subdivided into two classes– Class A and Class B.
Group 1- covers all devices that are not covered by group 2.
Group 2- covers devices that intentionally generate RF energy in frequency range 9 kHz-400 GHz, that is used in form electromagnetic radiation, inductive coupling, capacitive coupling for material analysis or inspection.
Class A- covers devices for usage in all establishments other than domestic and that are not directly connected to a low voltage power supply network, which supplies domestic environment.
Class B- covers devices for usage in domestic establishments that are directly connected to a low voltage power supply network, which supplies domestic environment.