You are very right I hereby declare that all Class A equipment installed and operated in a brick wall enclosure will pass requirements for Class B equipment, and may therefore be operated in the appropriate environment :<))
Regards, Gert Gremmen -----Oorspronkelijk bericht----- Van: Rene Charton <r...@ms1.hinet.net> Aan: Ing. Gert Gremmen <cet...@cetest.nl>; Nick Evans <nick_evans_gene...@email.msn.com>; Tommy H. Lee <le...@khgw.info.samsung.co.kr> CC: EMC-PSTC <emc-p...@majordomo.ieee.org> Datum: zondag 26 april 1998 6:49 Onderwerp: Re: EN 55022 ITE Class A vs. Class B? > > >---------- >±H¥óªÌ: Ing. Gert Gremmen <cet...@cetest.nl> writes: > >>Hello All, > >>You all fell over me when I categorized all equipment and apparatus to >Class B according to EN 55022. > >>The whole discussion here is targeted towards the distinction between >domestic and industrial or other environments. Well, >for now its 55022 >that gives the answer itselves: > >>4.1 NOTE (normative) > >>Domestic environment is an environment where the use of broadcast radio >and television receivers may be expected within a >distance of 10m of the >apparatus concerned. > >In the same room, or separated by a brick wall > >If we assume a 10dB attenuation for a brick wall ... then class A >equipment converts into class B equipment isn't it?? > >R.Charton > >
