Re: [PSES] [SPAM] Re: [PSES] Commom mode current vs. differential mode current and LISN

2016-04-14 Thread Rodney Davis
Sent: Thursday, April 14, 2016 1:08 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] [SPAM] Re: [PSES] Commom mode current vs. differential mode current and LISN I have only one minor objection to Scott’s comments. He implies that wiring done by an electrician will be done correctly. I’ve

Re: [PSES] [SPAM] Re: [PSES] Commom mode current vs. differential mode current and LISN

2016-04-14 Thread Nyffenegger, Dave
only source of non-guaranteed neutral wiring in the US. -Dave From: John Woodgate [mailto:jmw1...@btinternet.com] Sent: Thursday, April 14, 2016 12:37 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] [SPAM] Re: [PSES] Commom mode current vs. differential mode current and LISN Quite right

Re: [PSES] [SPAM] Re: [PSES] Commom mode current vs. differential mode current and LISN

2016-04-14 Thread Ted Eckert
and do not necessarily reflect those of my employer. From: Scott Aldous [mailto:0220f70c299a-dmarc-requ...@ieee.org] Sent: Thursday, April 14, 2016 8:33 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] [SPAM] Re: [PSES] Commom mode current vs. differential mode current and LISN That

Re: [PSES] [SPAM] Re: [PSES] Commom mode current vs. differential mode current and LISN

2016-04-14 Thread John Woodgate
: [PSES] Commom mode current vs. differential mode current and LISN That assumes that the input neutral in the product is always actually connected to the neutral of the supply. Even with polarized plugs (or plugs in a configuration where the connection itself cannot be reversed) it is possible for

Re: [PSES] [SPAM] Re: [PSES] Commom mode current vs. differential mode current and LISN

2016-04-14 Thread Scott Aldous
That assumes that the input neutral in the product is always actually connected to the neutral of the supply. Even with polarized plugs (or plugs in a configuration where the connection itself cannot be reversed) it is possible for residential house wiring to be incorrect. This is fairly common in

Re: [PSES] [SPAM] Re: [PSES] Commom mode current vs. differential mode current and LISN

2016-04-14 Thread John Woodgate
I suppose it has been realised (or assumed?) that the impedance from N to E, even at quite high frequencies, is already low enough that an additional 4.7 nF makes insufficient difference to justify its inclusion. An experiment is indicated. From: Richard Marshall [mailto:richard.marshal...@bt