The new BS EN 55022 2010 Edition has just been released for public distribution. It’s titled “Information technology equipment. Radio disturbance characteristics. Limits and methods of measurement,” and is the official English language edition of the EN 55022:2010. The standard is a modified adoption of the CISPR 22 6th Edition from 2008.
The standard applies to information technology equipment (ITE). Procedures are given for the measurement of the levels of spurious signals generated by the ITE and limits are specified for the frequency range 9 kHz to 400 GHz for both class A and class B equipment. No measurements need be performed at frequencies where no limits are specified. The intention of this publication is to establish uniform requirements for the radio disturbance level of the equipment contained in the scope, to fix limits of disturbance, to describe methods of measurement and to standardize operating conditions and interpretation of results.
BS EN 55022 applies to 2 EU Directives: EMC Electromagnetic Compatibility (2004/108/EC) and RTTE Radio and telecommunications terminal equipment (1999/5/EC). It replaces the BS EN 55022:2006+A2:2010 Edition, which remains current.
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