GB/T 9254.1-2021 Information technology equipment,multimedia equipment and receivers—Electromagnetic compatibility—Part 1:Emission requirements

Scope

This document applies to information technology equipment (3.1.19), audio equipment (3.1.6), video equipment (3.1.3), broadcast receiving equipment (3.1.7), entertainment lighting control equipment (3.1.14), and their combinations, with a rated AC voltage effective value or DC voltage not exceeding 600 V.
This document also applies to the above-mentioned equipment for professional use.
The emission requirements specified in this document do not apply to intentional emissions generated by radio transmitters defined by the ITU, nor to spurious emissions associated with these intentional emissions.
Equipment for which emission requirements are specified in other IEC/CISPR-correspondent national standards (except for GB/T 9254 and GB/T 13837) for the frequency bands applicable to this document are not included in the scope of this document.
This document does not apply to field testing.
This document includes Class A and Class B equipment. The classification of equipment is specified in Chapter 4.
The purpose of this document:
a) Establish requirements to provide sufficient protection for the radio frequency spectrum to ensure that radio services within the 9 kHz to 400 GHz frequency bands operate as intended.
b) Specify procedures to ensure the reproducibility of measurements and the repeatability of results.

Development Information

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Replace the following standards

Referenced Standards

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