Re: [PSES] EN 302 195 Distance Conversion Factor

In the close field area E-field/H-field varies with 1/(r^2) OR 1/(^3) depending on the source and nature of it. In addition at close distances similar fields may have an opposite vector polarity (close to EUT) and may partially cancel each other. In general it is not a good idea measuring close

Re: [PSES] EN 302 195 Distance Conversion Factor

In the absence of any other solution, you could use the 300 330 factor and explain why In an 'EMC assessment document'. With best wishes DESIGN IT IN! OOO – Own Opinions Only www.jmwa.demon.co.uk J M Woodgate and Associates Rayleigh England Sylvae in aeternum

[PSES] EN 302 195 Distance Conversion Factor

Dear Members, What is the appropriate distance conversion factor per EN 302 195, 9 kHz - 30 MHz? The limits were specified at 10m. Test data was too low to be detected at 10m and 3m. 1m distance was used to collect some data. EN 300 330 provides a chart for the distance conversion factors

Re: [PSES] British question, about a BS1363 plug-in power supply

I can confirm Mr. Larkin’s and Mr. Woodgate’s statements. The UK and Ireland have a national difference for IEC 60950-1 reads as follows. 2.7.1: In the United Kingdom, to protect against excessive currents and short-circuits in the PRIMARY CIRCUIT of DIRECT PLUG-IN EQUIPMENT, tests according

Re: [PSES] British question, about a BS1363 plug-in power supply

Scott With great respect to Rich , that’s will tell you an awful lot about the UK building wiring system – provided you have the patience to study it in detail, but I rather doubt it will tell you much about the PSU issue because the IEE Regs (BS 7671 BTW) because it based on the IEC 60364

Re: [PSES] British question, about a BS1363 plug-in power supply

Hi Rich, Thanks for sharing!  I will get the regulation to study. Regards, Scott From: Richard Nute Reply-To: Date: Monday, 5 December 2016 at 3:17 AM To: 'Scott Xe' , Subject: RE: [PSES]

Re: [PSES] British question, about a BS1363 plug-in power supply

It's in 62389-1 as well. With best wishes DESIGN IT IN! OOO – Own Opinions Only www.jmwa.demon.co.uk J M Woodgate and Associates Rayleigh England Sylvae in aeternum manent. From: Matthew Larkin [mailto:m.lar...@samsung.com] Sent: Monday, December 5, 2016

Re: [PSES] British question, about a BS1363 plug-in power supply

I believe there is a UK Special National Condition in EN60950-1 that states fault tests shall be conducted with an external 30A or 32A protection device and if the Direct Plug In Equipment fails the requirements of fault tests a protection device shall be fitted as an integral part of the