Pat: Class E limits would be for equipment greater than 1000 watts. Class E limits are contained in IEC document SC77A/164/CD. It has been commented on by national committees and the results will be discussed at the next WG1 meeting starting on 24 April 1997.
A previous draft from SC77A/WG1 contained a definition for professional equipment for the first time. It is repeated in the above committee document. The definition is "equipment for use in trades, professions, or industries and which is not intended for sale to the general public. The application shall be specified by the manufacturer." This definition was modified by the last sentence because of the TC74/WG9 negotiations with SC77A. As additional information, TC74 will make a presentation at that meeting for limits specific for Information technology equipment. We are proposing a Class F. The limits proposed are contained in TC74/436/CDV. If you need additional questions you can call me on 610 648 3653. Dave George Convenor TC74/WG9 ---------- >From: Pat Lawler >To: [email protected] >Subject: IEC1000-3-2: proposal for Class E? >Date: Tuesday, April 15, 1997 10:07PM > > >From: Pat Lawler >To: [email protected] >Subject: IEC1000-3-2: proposal for Class E? >Date: 1997-04-15 22:07 >Priority: 3 > >--------------------------------------------------------------------------- --- > >In the current issue of 'Compliance Engineering' magazine, the >Newswatch column mentions a proposal to ammend IEC1000-3-2, adding >another class of harmonic current limits known as 'Class E'. >Equipment described as "professional equipment powered by less than >1000 watts" would be covered by these new limits. > >Does anyone know what 'professional equipment' is, and what the Class >E limits would be? > >Pat Lawler >[email protected] >
