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CISPR

The Comite International Special des Perturbations Radioelectriques or in English the International special committee on Radio Interference is best known by its abbreviation CISPR, is a special committee under the sponsorship of the International Electrotechnical Commissions (IEC). The membership is from national committees of the IEC, and other number of other international organizations interested in the reduction of the radio interference. CISPR was founded in 1934.

CISPR has six active subcommittees that have evolved over the past 70 years. The current subcommittees are:

CISPR Subcommittee A – Radio interference measurements and statistical methods.

CISPR Subcommittee B – Interference relating to industrial, scientific, and medical (ISM) radio frequency apparatus, to other (heavy) industrial equipment, to overhead power lines, to high voltage equipment, and to electric traction.

CISPR Subcommittee D – Interference relating to motor vehicles and internal combustion engines.

CISPR Subcommittee F – Interference relating to household appliances, tools, lighting equipment, and similar apparatus.

CISPR Subcommittee H – Limits fro the protection of radio services.

CISPR Subcommittee I – Electromagnetic compatibility of information technology equipment, multimedia equipment, and receivers.

CISPR standard are oriented primarily toward electromagnetic emissions and electromagnetic emissions measurements. CISPR standard address the issue of immunity as well. More than 30 CISPR standards have been published.

Some of the most popular CISPR publications are:

CISPR 10. Organization, Rules and Procedures of the CISPR. The first edition was published in 1971 in order to bring together the administrative aspects of CISPR.

CISRP 11. Industrial, Scientific, and Medical (ISM) Radio-Frequency Equipment-Electromagnetic Disturbance Characteristics-Limits and Methods of Measurement. This is one of the more-well known standards in the CISPR family. This publication covers the ISM equipment. The fundamental emissions standard for all electronic medical devices in covered in this publication.

CISPR 14-1. Electromagnetic Compatibility-Requirements for Household Appliance, Electric Tools, and Similar Apparatus-Part 1:Emissions. This standard applies to the conduction and radiation of radio-frequency (RF) disturbances from appliances whose main function is performed by motors and switching or regulatory devices. Covers equipment such as household electrical appliances, electric tools, regulating controls employing semiconductor devices, motor-driven electro medical apparatus, electric toys, automatic dispensing machines and cinema or slide projectors.

CISPR 14-2. Electromagnetic Compatibility-Requirements for Household Appliances, Electric Tools, and Similar Apparatus-Part 2:Immunity-Product Family Standard. This publication specifies the immunity requirements in relation to continuous and transient conducted and radiated electromagnetic disturbances, including electrostatic discharge, for the relevant equipment.

CISPR 22 Information Technology Equipment – Radio Disturbance Characteristics – Limits and Methods of Measurement. This is one of the better – known CISPR standards. This CISPR standard covers the requirements for radiated and conducted emissions for Information Technology Equipment (equipment that transmits/receives digital data via wire). Measurement techniques are given in CISPR 22 for conducted common mode emissions testing on AC Mains and telecommunications cables. The original standard was released in 1985. Several revisions have been release since that time.

Many other CISPR standards have been written. This is a summary of some of the CISPR standards. CISPR is actively working on several standards both in generating new ones and revising existing standards. Interested parties can monitor the progress by checking out the IEC website.

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