I wish we could attach a picture to these emails for a picture is worth a thousand words. ☺ Figure 5 shows the setup for Floor-standing equipment.
I have the 2006 version of the standard which says the bottom row of the Uniform Field Area is 0.8 meters off the floor so the area below the 0.8 meter is outside the unified field. However, I thought I saw a post awhile back where someone was referring to lowering the Uniform Field Area for floor-standing equipment. Did this happen in later versions of the standard? (or am I thinking about something else). We have played around with trying to lower the Uniform Field Area but once you get closer than 0.5 meters off the floor the field strength takes a huge dive and there is just no way. The Other Brian From: [email protected] [mailto:[email protected]] On Behalf Of Ken Javor Sent: Wednesday, November 14, 2012 9:27 AM To: [email protected] Subject: Re: EN 61000-4-3 for large industrial equipment Thanks to all who answered thus far, and to specifically address Mr. Woodgate, no I don’t have the latest version. In fact, the version I have is IEC 1000-4-6, and it is presently boxed up and inaccessible. But there remains one question I thought inherent in my original post, but either left unanswered, or I’m not getting it. The equipment is floor-standing. How is the portion from the floor up to 80 cm above the floor properly illuminated in the test facility? This equipment will not be tested in situ. Ken Javor Phone: (256) 650-5261 ________________________________ From: Jim Hulbert <[email protected]<mailto:[email protected]>> Date: Wed, 14 Nov 2012 13:30:26 +0000 To: "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>>, "[email protected]<mailto:[email protected]>" <[email protected]<mailto:[email protected]>> Conversation: EN 61000-4-3 for large industrial equipment Subject: RE: EN 61000-4-3 for large industrial equipment In-situ testing of large industrial installations is not uncommon. The tests can be modified as appropriate or necessary for the equipment under test as long as rationale and procedures are well documented. This is perfectly acceptable under the TCF route to compliance with the EMC Directive. After all, presumption of conformity is established by applying the harmonized standards or through the TCF route when harmonized standards cannot be applied or can only be applied in part. While a Notified Body is no longer needed to approve a TCF, I would recommend that an accredited test organization with EU recognition and experience in in-situ testing be used. Jim Hulbert From: [email protected]<mailto:[email protected]> [mailto:[email protected]] On Behalf Of Charlie Blackham Sent: Wednesday, November 14, 2012 3:28 AM To: Ken Javor; [email protected]<mailto:[email protected]> Subject: RE: EN 61000-4-3 for large industrial equipment Ken You don’t worry about it – you illuminate different parts of the EUT in turn - test the 1.5 meter square area then move your EUT and test another section of it in the UFA. That won’t work for all products so an alternative approach is discussed in EUANB TGN 27 on on-site testing of large machines http://www.rtteca.com/EUANB%20TGN%2027%20on%20on-site%20testing%20of%20large%20machines.pdf regards Charlie From: Ken Javor [mailto:[email protected]] Sent: 14 November 2012 06:52 To: [email protected]<mailto:[email protected]> Subject: Re: [PSES] EN 61000-4-3 for large industrial equipment How is the field intensity established outside the 1.5 meter square area UFA? Thank you, Ken Javor Phone: (256) 650-5261 ________________________________ From: "ce-test, qualified testing bv - Gert Gremmen" <[email protected]<mailto:[email protected]>> Date: Wed, 14 Nov 2012 06:59:33 +0100 To: Ken Javor <[email protected]<mailto:[email protected]>> Cc: <[email protected]<mailto:[email protected]>> Conversation: EN 61000-4-3 for large industrial equipment Subject: RE: EN 61000-4-3 for large industrial equipment Partial illumination, with sufficient overlap. Gert Gremmen Ce-test Van: [email protected]<mailto:[email protected]> [mailto:[email protected]] Namens Ken Javor Verzonden: woensdag 14 november 2012 4:50 Aan: [email protected]<mailto:[email protected]> Onderwerp: EN 61000-4-3 for large industrial equipment Forum Members, For a large piece of industrial equipment which is floor-standing and wider in length and possibly height than the uniform field area (UFA) specified in EN61000-4-3, how is the test performed? Thank you, Ken Javor Phone: (256) 650-5261 - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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