Re: [PSES] classification of the output

2019-03-15 Thread Richard Nute
. Hope this helps. Best regards, Rich From: Mick Maytum Sent: Thursday, March 14, 2019 10:09 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] classification of the output Pete, Glad to see your thoughts agree with mine. With large amplitude voltage pulses there must

Re: [PSES] classification of the output - SawStop

2019-03-15 Thread John Woodgate
p has which might have some better technical details?* ** */Ed Price /**WB6WSN**/ /**Chula Vista, CA USA* ** *From:*Pete Perkins [mailto:0061f3f32d0c-dmarc-requ...@listserv.ieee.org] *Sent:* Thursday, March 14, 2019 5:26 PM *To:* EMC-PSTC@LISTSERV.IEEE.ORG *Subject:* Re: [PSES] classificati

Re: [PSES] classification of the output - SawStop

2019-03-14 Thread Edward Price
] classification of the output Joe, I am familiar with this product that stops the saw blade and protects fingers. I talked with them during development; their primary problem was that the product wasn’t explicitly covered under the standards for the product they were intending this for

Re: [PSES] classification of the output

2019-03-14 Thread Mick Maytum
https://ict-surge-protection-essays.co.uk/ -- Original Message -- From: "Pete Perkins" To: "Mick Maytum" ; EMC-PSTC@listserv.ieee.org Sent: 13/03/2019 06:11:38 Subject: RE: [PSES] classification of the output Mick, Thanx for the reply given on this thread.

Re: [PSES] classification of the output

2019-03-13 Thread John Barnes
Joe, I think that you are referring to the SawStop invented by Steve Glass. https://www.youtube.com/watch?v=dekzPA6nhC4 shows it in action. John Barnes KS4GL, PE, NCE, NCT, ESDC Eng, ESDC Tech, PSE, Master EMC Design Eng, SM IEEE (retired) 216 Hillsboro Ave Lexington, KY 40511-2105 (859)

Re: [PSES] classification of the output

2019-03-13 Thread John Woodgate
Re: [PSES] classification of the output Hi Pete, What manufacturer is expecting is the exact answer. Does this output complies with ES1 or it is ES2? And of course justification for this decision. If I accept it as ES1 and then later the other certification body says it is ES2 it is a big probl

Re: [PSES] classification of the output

2019-03-13 Thread Richard Nute
value, and the current is not. But only one parameter, voltage or current, is needed to determine ES1. Good luck, and best regards, Rich From: Glavič Sent: Tuesday, March 12, 2019 10:34 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] classification of the output

Re: [PSES] classification of the output

2019-03-12 Thread Pete Perkins
.@ieee.org> p.perk...@ieee.org Entropy ain’t what it used to be From: Mick Maytum Sent: Tuesday, March 12, 2019 1:03 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] classification of the output Joe Randolph and I talked about “pulsed power” delivery at the 2019 ATIS-PEG confere

Re: [PSES] classification of the output

2019-03-12 Thread Mick Maytum
- From: "Joe Randolph" To: EMC-PSTC@listserv.ieee.org Sent: 12/03/2019 17:54:36 Subject: Re: [PSES] classification of the output Hi Pete: This discussion reminds me of some things I have been hearing about “digital power” as a way to deliver large amounts of power while kee

Re: [PSES] classification of the output

2019-03-12 Thread Richard Nute
with the ES1 requirements in the standard! Best regards, Rich From: Ted Eckert <07cf6ebeab9d-dmarc-requ...@listserv.ieee.org> Sent: Tuesday, March 12, 2019 8:21 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] classification of the output Although the recent disc

Re: [PSES] classification of the output

2019-03-08 Thread Richard Nute
Hi Boštjan: Following up on my previous comment. Chances are the IEC 60990 touch current measurement scheme will not have a steady state current, but instead a fluctuating current. Especially if the PS output has a source impedance during the "off" state, which would discharge the touch

Re: [PSES] classification of the output

2019-03-08 Thread Ken Javor
Woodgate > Date: Fri, 8 Mar 2019 16:04:52 + > To: Ken Javor , > Subject: Re: [PSES] classification of the output > > Trouble is, you can never be sure . It might be Air Force 1 that gets > the EMI! > > On 2019-03-08 15:56, Ken Javor wrote: >> Re: [PSES] class

Re: [PSES] classification of the output

2019-03-08 Thread Scott Aldous
ous issue. > > > > Ken Javor > > Phone: (256) 650-5261 > > > > > > > > *From: *John Woodgate > > *Reply-To: *John Woodgate > > *Date: *Fri, 8 Mar 2019 09:41:41 + > > *To: * > > *Subject: *Re: [PSES] classification of

Re: [PSES] classification of the output

2019-03-08 Thread John Woodgate
Trouble is, you can never be sure . It might be Air Force 1 that gets the EMI! On 2019-03-08 15:56, Ken Javor wrote: Re: [PSES] classification of the output Unless the output overload test modeled something that occurred fairly often in practice, it seems to me that EMI caused during such an