|
CISPR 11
Edition 6.0 2015-06
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
Industrial, scientific and medical equipment – Radio-frequency disturbance
characteristics – Limits and methods of measurement
your local IEC member National Committee for further information.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de
CH-1211 Geneva 20
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 21 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.
IEC publications search - webstore.iec.ch/advsearchform IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and
CISPR.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
.
CISPR 11
Edition 6.0 2015-06
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
INTERNATIONAL SPECIAL COMMITTEE ON RADIO INTERFERENCE
Industrial, scientific and medical equipment – Radio-frequency disturbance
characteristics – Limits and methods of measurement
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 33.100.10 ISBN 978-2-8322-2742-8
– 2 – CISPR 11:2015 RLV © IEC 2015
CONTENTS
FOREWORD . 8
INTRODUCTION . 11
1 Scope . 12
2 Normative references . 12
3 Terms and definitions . 13
4 Frequencies designated for ISM use . 16
5 Classification of ISM equipment . 17
5.1 Separation into groups . 17
5.2 Division into classes . 17
5.3 Information Documentation for the user . 17
6 Limits of electromagnetic disturbances . 18
6.1 General . 18
6.2 Group 1 equipment measured on a test site . 18
6.2.1 Limits of terminal disturbance voltage for conducted disturbances . 18
6.2.2 Limits of electromagnetic radiation disturbance. 21
6.3 Group 2 equipment measured on a test site . 22
6.3.1 Limits of terminal disturbance voltage for conducted disturbances . 22
6.3.2 Limits of electromagnetic radiation disturbance. 24
6.4 Group 1 and group 2 class A equipment measured in situ . 31
6.4.1 Limits of terminal disturbance voltage for conducted disturbances . 31
6.4.2 Limits of electromagnetic radiation disturbance. 31
7 Measurement requirements . 33
7.1 General . 33
7.2 Ambient noise . 33
7.3 Measuring equipment . 34
7.3.1 Measuring instruments. 34
7.3.2 Artificial mains network (AN) . 35
7.3.3 Voltage probe . 35
7.3.4 Antennas . 36
7.3.5 Artificial hand . 36
7.4 Frequency measurement . 36
7.5 Configuration of equipment under test. 37
7.5.1 General . 37
7.5.2 Interconnecting cables . 39
7.5.3 Connection to the electricity supply network on a test site . 40
7.6 Load conditions of equipment under test . 42
7.6.1 General . 42
7.6.2 Medical equipment . 43
7.6.3 Industrial equipment . 44
7.6.4 Scientific, laboratory and measuring equipment . 45
7.6.5 Microwave cooking appliances . 45
7.6.6 Other equipment in the frequency range 1 GHz to 18 GHz . 45
7.6.7 Single and multiple-zone induction cooking appliances .
7.6.7 Electric welding equipment . 46
7.6.8 ISM RF lighting equipment . 47
7.6.9 Medium voltage (MV) and high voltage (HV) switchgear . 47
7.6.10 Grid connected power converters . 47
7.7 Recording of test-site measurement results . 47
7.7.1 General . 47
7.7.2 Conducted emissions . 48
7.7.3 Radiated emissions . 48
8 Special provisions for test site measurements (9 kHz to 1 GHz) . 48
8.1 Ground planes . 48
8.2 Measurement of mains terminal disturbance voltage conducted disturbances . 48
8.2.1 General . 48
8.2.2 Measurements on grid connected power converters . 49
8.2.3 Handheld equipment which are normally operated without an earth
connection . 53
8.3 Radiation test site for 9 kHz to 1 GHz . 54
8.3.1 General . 54
8.3.2 Validation of the radiation test site (9 kHz to 1 GHz) . 55
8.3.3 Disposition of equipment under test (9 kHz to 1 GHz) . 55
8.3.4 Radiation measurements (9 kHz to 1 GHz) . 55
8.4 Alternative radiation test sites for the frequency range 30 MHz to 1 GHz . 55
9 Radiation measurements: 1 GHz to 18 GHz . 56
9.1 Test arrangement . 56
9.2 Receiving antenna . 56
9.3 Validation and calibration of test site . 56
9.4 Measuring procedure . 56
9.4.1 General . 56
9.4.2 Operating conditions of the EUT . 57
9.4.3 Preliminary measurement . 57
9.4.4 Final measurement . 58
10 Measurement in situ . 59
11 Safety precautions for emission measurements on ISM RF equipment . 60
12 Assessment of conformity of equipment .
12.1 General .
12.2 Statistical assessment of compliance of series produced equipment .
12.3 Equipment in small-scale production .
12.4 Equipment produced on an individual basis .
12.5 Measurement uncertainty . 61
13 Figures and flowcharts .
Annex A (informative) Examples of equipment classification . 62
Annex B (informative) Precautions to be taken in the use of a spectrum analyzer (see
7.3.1) . 64
Annex C (normative) Measurement of electromagnetic radiation disturbance in the
presence of signals from radio transmitters . 65
Annex D (informative) Propagation of interference from industrial radio-frequency
equipment at frequencies between 30 MHz and 300 MHz . 66
Annex E (informative) Recommendations of CISPR for protection of certain radio
services in particular areas . 67
E.1 Introduction General . 67
E.2 Recommendations for protection of safety-related radio services . 67
– 4 – CISPR 11:2015 RLV © IEC 2015
E.3 Recommendations for protection of specific sensitive radio services . 67
Annex F (informative) Frequency bands allocated for safety-related radio services . 68
...