CISPR 21 Limits for Protection of Receivers in Broadcast Bands

Comprehensive Guide to CISPR 21 Limits for Protection of Receivers in Broadcast Bands Laboratory Testing Service Provided by Eurolab

CISPR 21 is a widely recognized international standard that sets the limits for protection of receivers in broadcast bands. This standard is developed and published by the International Electrotechnical Commission (IEC) under the CISPR (Comité International Spécial des Perturbations Radiophoniques) committee.

Relevant Standards

Standard Development Organizations

The CISPR committee is responsible for developing standards related to electromagnetic compatibility. The committee consists of experts from various countries who work together to develop, review, and maintain standards.

Legal and Regulatory Framework

The legal and regulatory framework surrounding CISPR 21 testing varies by country and region. In the European Union (EU), EN 55011:2016A1:2020 is a harmonized standard that sets out the limits for industrial, scientific, and medical equipment. Compliance with this standard is mandatory for products sold in the EU.

International and National Standards

CISPR 21 is an international standard that has been adopted by many countries as their national standard. In Turkey, for example, TS IEC CISPR 21:2018 is the national equivalent of the international standard.

Standard Evolution and Updates

Standards are regularly reviewed and updated to reflect changes in technology and regulatory requirements. The CISPR committee reviews and updates standards every few years to ensure they remain relevant and effective.

Standard Numbers and Scope

Here are some specific standard numbers and their scope:

Applies to all types of equipment that emit or transmit electromagnetic energy in the frequency range 1 kHz to 30 MHz

Sets out limits for the electromagnetic disturbance characteristics of equipment

Applies to testing and calibration laboratories worldwide

Sets out general requirements for laboratory competence, including sampling, testing, and calibration

Standard Compliance Requirements

Industry-specific compliance requirements vary depending on factors such as product type, frequency range, and market. Here are some examples:

Why This Specific Test is Needed

CISPR 21 testing is necessary because it ensures that products do not emit electromagnetic disturbances that can interfere with other equipment or cause harm to people. The test measures the electromagnetic disturbance characteristics of equipment in the frequency range 1 kHz to 30 MHz.

Business and Technical Reasons for Conducting CISPR 21 Testing

Here are some business and technical reasons why conducting CISPR 21 testing is essential:

Consequences of Not Performing This Test

Not performing CISPR 21 testing can result in:

Industries and Sectors That Require This Testing

Here are some industries and sectors that require CISPR 21 testing:

Risk Factors and Safety Implications

CISPR 21 testing helps identify potential risks and safety implications associated with electromagnetic disturbances. Some examples include:

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Why This Specific Test is Needed

CISPR 21 testing is necessary because it ensures that products do not emit electromagnetic disturbances that can interfere with other equipment or cause harm to people. The test measures the electromagnetic disturbance characteristics of equipment in the frequency range 1 kHz to 30 MHz.

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