Re: [PSES] ESD - Floating metal knob, otherwise grounded equipment

2020-03-19 Thread Paolo Roncone
achments from your computer > system and records. > > > > *From:* DEREK WALTON <00734758d943-dmarc-requ...@ieee.org> > *Sent:* Thursday, March 12, 2020 1:31 PM > *To:* EMC-PSTC@LISTSERV.IEEE.ORG > *Subject:* Re: [PSES] ESD - Floating metal knob, otherwise grounded

Re: [PSES] ESD - Floating metal knob, otherwise grounded equipment

2020-03-12 Thread Paasche, Dieter
ecords. From: DEREK WALTON <00734758d943-dmarc-requ...@ieee.org> Sent: Thursday, March 12, 2020 1:31 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] ESD - Floating metal knob, otherwise grounded equipment Oh Boy Elliott, you’ll get a few answers here, lol. My 10 cents is t

Re: [PSES] ESD - Floating metal knob, otherwise grounded equipment

2020-03-12 Thread DEREK WALTON
Oh Boy Elliott, you’ll get a few answers here, lol. My 10 cents is that when you are not discharging each time you are adding more and more charge to the isolated control, that eventually will snap over At that point you are discharging quite a significantly higher level of chart than an

Re: [PSES] ESD - Floating metal knob, otherwise grounded equipment

2020-03-12 Thread John Woodgate
See 7.2.4.1 of the standard ( my bold text): Rationale: Ungrounded equipment, or*ungrounded part(s) of equipment,* cannot discharge itself similarly to class I mains-supplied equipment. If the charge is not removed before the next ESD pulse is applied, it is possible that the EUT or part(s) of