Interference Relating to Industrial, Scientific and Medical Radio-Frequency Apparatus, to Other (Heavy) Industrial Equipment, to Overhead Power Lines, to High Voltage Equipment and to Electric Traction

This technical report provides the guidelines for emission levels within the bands designated by the International Telecommunication Union (ITU) for industrial, scientific and medical (ISM) application.

CISPR TR 18-3:2017 is available as CISPR TR 18-3:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.

CISPR TR 18-3:2017 which is a technical report, applies to radio noise from overhead power lines and high-voltage equipment which may cause interference to radio reception, excluding the fields from power line carrier signals. The frequency range covered is 0,15 MHz to 3 GHz. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- localisation system of spark discharges which might contain frequency components up to 3 GHz;
- information regarding equations for predetermination of the radio noise level from HVDC overhead power lines.

CISPR TR 18-3:2017 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

CISPR TR 18-3:2017 which is a technical report, applies to radio noise from overhead power lines and high-voltage equipment which may cause interference to radio reception, excluding the fields from power line carrier signals. The frequency range covered is 0,15 MHz to 3 GHz. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- localisation system of spark discharges which might contain frequency components up to 3 GHz;
- information regarding equations for predetermination of the radio noise level from HVDC overhead power lines.

CISPR TR 18-2:2017 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

CISPR TR 18-2:2017 which is a Technical Report, applies to radio noise from overhead power lines and high-voltage equipment which may cause interference to radio reception. The frequency range covered by this publication is 0,15 MHz to 3 GHz. A general procedure for establishing the limits of the radio noise field from the power lines and equipment is recommended, together with typical values as examples, and methods of measurement. The clause on limits concentrates on the low frequency and medium frequency bands and it is only in these bands where ample evidence, based on established practice, is available. No examples of limits to protect radio reception in the frequency band 30 MHz to 3 GHz have been given, as measuring methods and certain other aspects of the problems in this band have not yet been fully resolved. Site measurements and service experience have shown that levels of noise from power lines at frequencies higher than 300 MHz in normal operation are so low that interference is unlikely to be caused to television reception. The values of limits given as examples are calculated to provide a reasonable degree of protection to the reception of broadcasting at the boundary of the recognized service areas of the appropriate transmitters in the radio frequency bands used for a.m. radio broadcasting, in the least favourable conditions likely to be generally encountered. These limits are intended to provide guidance at the planning stage of the line and national standards or other specifications against which the performance of the line may be checked after construction and during its useful life. The measuring apparatus and methods used for checking compliance with limits should comply with the respective CISPR specifications, as e.g. the basic standards series CISPR 16, see [1]. This third edition of CISPR TR 18-2 is adapted to the modern structure and content of technical reports issued by IEC. The second edition of CISPR TR 18-2 underwent thorough edition and adaptation to modern terminology. This third edition now also covers an adequate method of measurement for radiated disturbances from HV overhead power lines and substations in the range 300 MHz to 3 GHz, since gap-type discharges can be a potential noise source disturbing modern digital radio communication.

CISPR TR 18-1:2017 is available as CISPR TR 18-1:2017 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. CISPR TR 18-1:2017 which is a Technical Report, applies to radio noise from overhead power lines, associated equipment, and high-voltage equipment which may cause interference to radio reception. The scope of this document includes the causes, measurement and effects of radio interference, design aspects in relation to this interference, methods and examples for establishing limits and prediction of tolerable levels of interference from high voltage overhead power lines and associated equipment, to the reception of radio signals and services. The frequency range covered is 0,15 MHz to 3 GHz. Radio frequency interference caused by the pantograph of overhead railway traction systems is not considered in this document. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: updated description of the RF characteristics of spark discharges which might contain spectral radio noise components up to the GHz frequency range; addition of state of the art in HVDC converter technology

CISPR TR 18-1:2017 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.

CISPR TR 18-1:2017 which is a Technical Report, applies to radio noise from overhead power lines, associated equipment, and high-voltage equipment which may cause interference to radio reception. The scope of this document includes the causes, measurement and effects of radio interference, design aspects in relation to this interference, methods and examples for establishing limits and prediction of tolerable levels of interference from high voltage overhead power lines and associated equipment, to the reception of radio signals and services. The frequency range covered is 0,15 MHz to 3 GHz. Radio frequency interference caused by the pantograph of overhead railway traction systems is not considered in this document. This third edition cancels and replaces the second edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- updated description of the RF characteristics of spark discharges which might contain spectral radio noise components up to the GHz frequency range;
- addition of state of the art in HVDC converter technology