Can anyone else chime in? I thought the the whole point of Class A was unintentional radiators that could not be used residentially, i.e., only in an office or plant environment, and thus would be directly applicable to the situation described in the original post.
Ken Javor Phone: (256) 650-5261 From: Ted Eckert <[email protected]> Reply-To: Ted Eckert <[email protected]> Date: Thu, 18 Feb 2016 15:42:58 +0000 To: <[email protected]> Conversation: [PSES] 47 CFR Part 15 Subpart B / ICES-003 applicable/mandatory for an industrial personal computer? Subject: Re: [PSES] 47 CFR Part 15 Subpart B / ICES-003 applicable/mandatory for an industrial personal computer? I believe unintentional radiators are exempted. Intentional radiators would not be exempted. My company uses the term ³EMC² primarily for CISPR 22/24 (or CISPRT 32/35) compliance and uses the term ³radio² for intentional radiators. I instinctively responded to the original question about ³EMC² without thinking about the more general context of this list server. Ted Eckert Compliance Engineer Microsoft Corporation [email protected] <mailto:[email protected]> The opinions expressed are my own and do not necessarily reflect those of my employer. From: Ken Javor [mailto:[email protected]] Sent: Thursday, February 18, 2016 7:28 AM To: [email protected] Subject: Re: [PSES] 47 CFR Part 15 Subpart B / ICES-003 applicable/mandatory for an industrial personal computer? I have to ask, not as an expert on this topic, but just because the below is not my understanding, such as it is. I thought that Class A covered digital equipment as an unintentional radiator if the device could manifestly not be used in a residential setting. That would seem to cover office and plant environments. I don¹t see why there would be an exemption against Class A for something used in an industrial environment? Ken Javor Phone: (256) 650-5261 From: Ted Eckert <[email protected]> Reply-To: Ted Eckert <[email protected]> Date: Thu, 18 Feb 2016 14:37:22 +0000 To: <[email protected]> Conversation: [PSES] 47 CFR Part 15 Subpart B / ICES-003 applicable/mandatory for an industrial personal computer? Subject: Re: [PSES] 47 CFR Part 15 Subpart B / ICES-003 applicable/mandatory for an industrial personal computer? Hello Michael, Whether or not EMC requirement apply in North America may depend on whether the industrial computer is in a fixed location. Digital devices that are part of industrial equipment are generally exempted. Incorporated devices are fixed in location and there is a general assumption that the environment is such that residential radio receivers, such as televisions, will not be within 3 meters of the equipment. A personal computer that has been ruggedized for use in industrial environments may still be subject to EMC requirements if it is movable. An industrial laptop, for example, may be used in a factory part of the time and in an office environment the rest of the time. I believe the key word is ³exclusively² in the regulation you quoted. For a device to be exempted, it must be designed and marketed such that it is reasonably expected it will only be used in industrial environments. Best regards, Ted Eckert Microsoft Corporation The opinions expressed are my own and do not necessarily reflect those of my employer. From: [email protected] [mailto:[email protected]] Sent: Thursday, February 18, 2016 2:09 AM To: [email protected] Subject: [PSES] 47 CFR Part 15 Subpart B / ICES-003 applicable/mandatory for an industrial personal computer? Hi, I am sorry if my question was answered anytime before. Nevertheless here my question: An European manufacturer has applied EN 61326-1 and EN 61010-1 for an industrial personal computer in an industrial plant for measurement purposes. What are the mandatory requirements regarding EMC in US/Canada? Is ICES-003 mandatory for Canada? If not in my understanding ICES-001 is also not applicable. Is § 15.123 "exempted devices" (A digital device used exclusively as industrial, commercial, or medical test equipment.) for US applicable? If yes, 47 CFR Part 18 is in my opion also not applicable. Therefore NO mandatory EMC requirements for equipment which are in the scope of EN 61326-1 are existing in US/Canada? Thanks for comments in advance. Michael - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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