BS EN 55011:2009 pdf download – Industrial, scientific and medical equipment — Radio-frequency disturbance characteristics — Limits and methods of measurement ln some CENELEC countries different or additional frequencies may be designated for use withISM RF applications in the meaning of the definition found in the ITU Radio Regulations,seedefinition 3.1.These frequencies are listed in Table ZB.1(see Annex ZB). The limits for the disturbance voltage and radiation disturbance defined in this standard do also notapply to the fundamental lSM frequencies listed in Table ZB.1. If ISM RF applications use fundamentalfrequencies other than the lTU or nationally designated frequencies, then the limits for the disturbancevoltage and radiation disturbance of this standard apply also to these fundamental frequencies.C 5 Classification of ISM equipment 5.1Information for the user The manufacturer and/or supplier of lSM equipment shall ensure that the user is informedabout the class and group of the equipment,either by labelling or by the accompanyingdocumentation. In both cases the manufacturerlsupplier shall explain the meaning of both theclass and the group in the documentation accompanying the equipment. ln the case of arc welding equipment which contains arc striking or stabilizing devices or in thecase of stand-alone arc striking or stabilizing devices for arc welding, the manufacturer shallinform the user that such equipment is class A equipment. 5.2separation into groups Group 1 equipment: group 1 contains all equipment in the scope of this standard which is notclassified as group 2 equipment. Group 2 equipment: group 2 contains all ISM RF equipment in which radio-frequency energy inthe frequency range 9 kHiz to 400 GHz is intentionally generated and used or only used, in theform of electromagnetic radiation，inductive and/or capacitive coupling，for the treatment ofmaterial or inspectionlanalysis purposes. NOTE See Annex A for examples of the separation of equipment into group 1 or 2. 5.3Division into classes Class A equipment is equipment suitable for use in all establishments other than domestic andthose directly connected to a low voltage power supply network which supplies buildings usedfor domestic purposes. Class A equipment shall meet class A limits. Warning: Class A equipment is intended for use in an industrial environment. ln thedocumentation for the user, a statement shall be included drawing attention to the fact thatthere may be potential difficulties in ensuring electromagnetic compatibility in otherenvironments, due to conducted as well as radiated disturbances. Class B equipment is equipment suitable for use in domestic establishments and inestablishments directly connected to a low...
Download Address
Download