[PSES] Clarifications for Functional Earthing

Hi Folks, Background- EN60950-1:2006 1.2.13.9 “FUNCTIONAL EARTHING earthing of a point in equipment or in a system, which is necessary for a purpose other than safety”. "2.6.2 Functional earthing − it is permitted to connect the FUNCTIONAL EARTHING circuit to a protective earth terminal or to a

[PSES] December EMC Blogs

Hi All, Here's an update on a couple blog postings from this past December. EMC questions answered (Part 4) - Several questions on EMC measurements and product design were asked during my recent webinar hosted by Interference Technology Magazine and sponsored by Rohde & Schwarz. Here they are w

Re: [PSES] EMI is a safety concern

In message <17a89daa0a5a44ba927bece934633...@blupr02mb116.namprd02.prod.outlook.com> , dated Thu, 2 Jan 2014, Brian Oconnell writes: Is IEC61000-1-2 intended to supplement or obsolete IEC61508? No; IEC 61508 is about functional safety **in general**, not just about **EMC and functional sa