Re: [PSES] Changes in Safety-Rated Capacitor Approval

Thank you John for the correction. Dated references always seem to be causing problems. Just out of curiosity, should incorrectly dated reference be caught by EDCOM or somewhere else in the IEC standards development process? Also, please let me know when I can come out of the forest, assuming I'

Re: [PSES] outdoor EMC testing - questions

Which CISPR standard? CISPR 22 (ITE) and CISPR 32 (ITE, Broadcast Receivers and Multimedia Equipment) top out at 6 GHz. The upper frequency (beyond 1 GHz) depends on the maximum frequency used in the product, not the power level. Ghery Pettit -Original Message- From: Ken Javor [mailto:k

Re: [PSES] Changes in Safety-Rated Capacitor Approval

That is true, EXCEPT de facto when the part requires its own independent approval and the old standard is withdrawn. In that case, no test house will grant approval to a withdrawn standard. This does raise serious questions for the committees whose standards have dated references to the 2005 ed

Re: [PSES] outdoor EMC testing - questions

Wow! I thought CISPR topped out at 6.5 GHz max, and I thought that was based on clock frequency. I would think a super-high power inverter would max out at 1 GHz, with the actual spectrum much lower. Unless of course there is a housekeeping power supply and clocked digital control system using a fa

Re: [PSES] Changes in Safety-Rated Capacitor Approval

A good place to look is the IEC web site itself, www.iec.ch . It appears that the withdrawal was by IEC (not CENELEC), because of the publication of these three new standards: IEC 60384-14:2013+AMD1:2016 CSV Fixed capacitors for use

Re: [PSES] Changes in Safety-Rated Capacitor Approval

Hello Brian, What standard is used for the product that incorporates the capacitors? Many product standards include dated references to component standards. Information Technology Equipment would still permit the use of capacitors tested to IEC 60384-14:2005 as that is what is called out as a r

Re: [PSES] outdoor EMC testing - questions

Ralph, Back in a previous lifetime (at a test lab) I had a similar EUT to test. You need to setup your antenna every 20 degrees or 30 degrees or 45 degrees around the outside of the EUT at a 3 meter or 10 meters measurement distance. You need to tailor the setup to the space you have. You need t

[PSES] Changes in Safety-Rated Capacitor Approval

Dear Experts, We have recently been informed by a Y-capacitor supplier that a new version of IEC/EN60384-14 has been adopted, apparently about 2 years before expected, forcing their Y3 product to become unapproved, with no clear substitute. We are told that the 2005 version of the standard was t

Re: [PSES] outdoor EMC testing - questions

Ralph, We had an indoor setup similar to what you describe back in the 1980s when I worked for Tandem Computers. The downsides of such a set-up are numerous. We had a Memorex facility on the other side of the wall (I have no idea what they did there) and whenever we found a signal the first quest

Re: [PSES] outdoor EMC testing - questions

Captain Obvious here: I would run an ambient survey to see what's out there, and given a broadband antenna like that, you likely need a preselector to to protect from strong out-of-band signals. If you have strong FM signals, you might want to consider a logperiodic that include the entire FM BCB

Re: [PSES] outdoor EMC testing - questions

Dear group, We are planning to do radiated emissions on a large EUT (a large power converter) and use a portion of our outdoor, asphalt parking lot as an open area test site. We plan to walk an antenna around the EUT, since the EUT and its cabling are too large to rotate on a platform. It wil