1. Yes. 2. Original statement is true only if the substation output is at MV or higher. If it is at LV, the location is strictly RCLI (residential, commercial and light industrial). a) In most countries in Europe, yes, but in France there are some separate industrial LV networks. You have to look at the location and decide whether there are likely to be broadcast radio or TV receivers within 30 m. If so, it's RCLI. b) Yes. There is no way to categorize. I know of a single dwelling house with its own LV transformer. They are not very rare in rural parts. But please bear in mind that it's the *user* who decides where to use a product and the manufacturer has no control. Obviously, the most flexible solution is the most costly, Class B emissions and Class A immunity. With best wishes DESIGN IT IN! OOO – Own Opinions Only <http://www.jmwa.demon.co.uk/> www.jmwa.demon.co.uk J M Woodgate and Associates Rayleigh England Sylvae in aeternum manent. From: Kortas, Jamison [mailto:jamison.kor...@ecolab.com] Sent: Wednesday, October 19, 2016 3:35 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Criteria for determining industrial vs. non-industrial for EMC testing purposes Doug- Thanks very much for this. Within this group, I often get responses before the initial email, so I missed this one the first time through. Two questions: 1. Is it safe to say that the same definitions hold true for immunity as well? 2. Would the following statements be true as well? Original Statement: If a location is fed from its own substation and there are no dwellings supplied from that substation, it’s an industrial location, and therefore Class A. a. If a location is not fed from its own substation, but there are no dwellings supplied from that substation, it’s not an industrial location, and therefore Class B. b. If a location is fed from its own substation and there are dwellings supplied from that substation, it’s not an industrial location, and therefore Class B. Without knowing the details of every installation, is there a relatively simple way of categorizing types of buildings that would be fed by its own substation, for example? Thanks, Jamison From: Doug Nix [ <mailto:d...@ieee.org> mailto:d...@ieee.org] Sent: Tuesday, October 18, 2016 11:25 AM To: Kortas, Jamison < <mailto:jamison.kor...@ecolab.com> jamison.kor...@ecolab.com> Cc: IEEE EMC PSTC < <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] Criteria for determining industrial vs. non-industrial for EMC testing purposes My understanding has always been based on the Class and Group designations in CISPR 11 / EN 55011 for ISM equipment (based on the 2009 edition): 5.3 Division into classes Class A equipment is equipment suitable for use in all establishments other than domestic and those directly connected to a low voltage power supply network which supplies buildings used for domestic purposes. Class A equipment shall meet class A limits. Warning: Class A equipment is intended for use in an industrial environment. In the documentation for the user, a statement shall be included drawing attention to the fact that there may be potential difficulties in ensuring electromagnetic compatibility in other environments, due to conducted as well as radiated disturbances. Class B equipment is equipment suitable for use in domestic establishments and in establishments directly connected to a low voltage power supply network which supplies buildings used for domestic purposes. Class B equipment shall meet class B limits.
The key in all of this is the source of power supply for the equipment. If the equipment is supplied from mains that are shared with domestic establishments, then it must meet Class B requirements IMO. If the equipment is intended for industrial use, i.e., Class A, where the power supply from the mains is not shared with domestic establishments, then Class A performance is acceptable. The deciding factor is the sharing of the supply with domestic establishments. If a location is fed from its own substation and there are no dwellings supplied from that substation, it’s an industrial location, and therefore Class A. Doug Nix <mailto:d...@ieee.org> d...@ieee.org +1 (519) 729-5704 On 18-Oct-16, at 08:44, Kortas, Jamison < <mailto:jamison.kor...@ecolab.com> jamison.kor...@ecolab.com> wrote: Good Morning, What do you use for criteria when reviewing the intended environment in which a device will be placed to determine if it is industrial or non-industrial? I have seen and read varying opinions on what criteria to use. It ranges from a transformer isolated factory to the nature of the other products in the immediate vicinity (a mechanical room in a grocery store = industrial due to the equipment in its immediate environment). I am familiar with some of the definitions in places, but am not so sure that those are what are typically followed in practice. I appreciate any thoughts. Thank you. - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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