Measurement equipment generating and\/or using radio frequency energy for industrial, scientific, medical, domestic or similar purposes within the frequency range 9 kHz to 400 GHz. Protection of the radio spectrum from spurious interference is of vital importance to the maintenance of succesful radio communications. This standard specifies radio disturbance limits for potentially interfering spurious emissions generated by Industrial, Scientific and medical apparatus. The standard is aimed at: manufacturers; design engineers; procurement engineers; importers of ISM apparatus; test laboratories;The standard will be used to achieve presumption of conformance to the “EU EMC directive”.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 1<\/td>\n | BRITISH STANDARD <\/td>\n<\/tr>\n | ||||||
| 2<\/td>\n | National foreword <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | Foreword Foreword to amendment A1 Foreword to amendment A2 <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | Contents <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | 1 General 1.1 Scope and object 1.2Normative references 2 Definitions 2.1 ISM equipment; ISM appliance <\/td>\n<\/tr>\n | ||||||
| 8<\/td>\n | 2.2 electromagnetic radiation [IEV 161-01-10] 2.3 boundary of the equipment under test 2.4 click 2.5 electro-discharge machining (EDM) equipment 2.6 spark erosion 2.7 arc welding equipment 2.8 arc welding 3 National measures and frequencies designated for ISM use 3.1 Certain frequencies are designated by the International Telecommunication Union (ITU) for use as … 3.2 National Authorities may allow the installation and use of class A apparatus in a domestic establ… <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 3.3 The frequencies designated for ISM use are listed in\ufffd 3.4 When ISM equipment cannot be brought in conformity with the limits of\ufffd Table 1a Frequencies designated by ITU for use as fundamental ISM frequencies Table 1b Frequencies designated on a national basis in CENELEC countries for use as fundamental ISM freque… <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 4 Classification of ISM equipment 4.1 Separation into groups 4.2 Division into classes 5 Limits of electromagnetic disturbances <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | 5.1 Limits of terminal disturbance voltage Table 2a Mains terminal disturbance voltage limits for class A equipment measured\ufffdon\ufffda\ufffdtest\ufffdsite <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | Table 2b Mains terminal disturbance voltage limits for class B equipment measured on a test site Table 2c Mains terminal disturbance voltage for induction cooking appliances Table 3 Electromagnetic radiation disturbance limits for group\ufffd1 equipment <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 5.2 Limits of electromagnetic radiation disturbance Table 3a Limits of the magnetic field induced current in a\ufffd2\ufffdm loop antenna around the device under test <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Table 3b Limits of the magnetic field strength Table 4 Electromagnetic radiation disturbance limits for group 2, class B equipment measured on a test site <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | Table 5a Electromagnetic radiation disturbance limits for group 2, class A equipment <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Table 5b Electromagnetic radiation disturbance limits for class A EDM and arc welding equipment measured o… Table 6 Limits for electromagnetic radiation disturbances to protect specific safety services in particul… 5.3 Provisions for protection of safety services 5.4 Provisions for protection of specific sensitive radio services 6 General measurement requirements 6.1 Ambient noise <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 6.2 Measuring equipment <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 6.3 Frequency measurement 6.4 Configuration of equipment under test <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | 6.5 Load conditions of equipment under test <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | 7 Special provisions for test site measurements (9\ufffdkHz to 1\ufffdGHz) 7.1 Measurement of mains terminal disturbance voltage <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 7.2 Radiation test site for 9 kHz to 1 GHz 7.3 Alternative radiation test sites for the frequency range 30 MHz to 1 GHz <\/td>\n<\/tr>\n | ||||||
| 24<\/td>\n | 8 Radiation measurements:\ufffd1\ufffdGHz to\ufffd18\ufffdGHz 8.1 Test arrangement 8.2 Receiving antenna 8.3 Validation and calibration of test site 8.4 Measuring procedure 9 Measurement 10 Safety precautions <\/td>\n<\/tr>\n | ||||||
| 25<\/td>\n | 11 Assessment of conformity of equipment 11.1 Statistical assessment of compliance of series produced equipment 11.2 Equipment in small-scale production 11.3 Equipment produced on an individual basis Table 7 The non-central <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Figure 1 Test site Figure 2 Minimum size of metal ground plane <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Figure 3 Disposition of medical (capacitive type) and dummy load (see\ufffd Figure 4 Circuit for disturbance voltage measurements on mains supply (see\ufffd <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Figure 5 Decision tree for the measurement of emissions from 1\ufffdGHz to 18\ufffdGHz of class\ufffdB, group\ufffd2 ISM equip… Table 8 Electromagnetic radiation disturbance peak limits for group 2, class B ISM equipment producing CW… <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Table 9 Electromagnetic radiation disturbance peak limits for group 2, class B ISM equipment producing fl… Table 10 Electromagnetic radiation disturbance weighted limits for group 2, class\ufffdB\ufffdISM\ufffdequipment operatin… <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Annex A (informative) Examples of equipment classification <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | Annex B (informative) Precautions to be taken in the use of a spectrum analyzer ( <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | Annex C (normative) Measurement of electromagnetic radiation disturbance in the presence of signals from … Annex D (informative) Propagation of interference from industrial \ufffdr.f.\ufffd equipment at frequencies between… <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | Annex E (informative) Safety related service bands <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | Annex F (informative) Sensitive service bands <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | Annex ZA (normation) Normative references to international publications with their corresponding European … <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Limits and methods of measurement of radio disturbance characteristics of industrial, scientific and medical (ISM) radio-frequency equipment<\/b><\/p>\n |