Hi Doug, I assume that due to your good health you don’t have a pacemaker or any other electronic medical implants that might be affected by EM field exposure. As protection and shielding options for such implants are limited (except by the surrounding tissue), the remaining other option to reduce the risk of malfunction is to limit EM fields.
Stay in the best of health and have a nice weekend, Bernd Von: Doug Smith <[email protected]> Gesendet: Donnerstag, 5. Juli 2018 20:56 An: [email protected] Betreff: Re: [PSES] EN62311 - Human Exposure to Electromagnetic Fields Hi Michael and the group, With the exception tissue heating generated by some sources at very high frequencies, I wonder if the EM field exposure worries today are a bit overblown. I started my experiments in high voltage (100,000+ Volts, and NOT static electricity) around age 13 and by age 14 was regularly immersing myself in 10,000+V/m, 300 kHz fields. It was fun, heating up screw driver blades from induction heating, lighting incandescent light bulbs (as well as fluorescent tubes) without wires, and more. About 600 Watts of RF energy was concentrated in the relatively small space I was in and I was uninjured! My kids all have two arms, two legs, and one head and I am still here almost 60 years later and healthier than 90% of adults of any age from 18 on. Some of my friends say this explains a lot about me (frying brain cells) though. I realize this is only one case, but have had a lot of high energy RF exposure throughout my life. Such as the field in my dorm room from my amateur radio transmitter being so strong that the fluorescent tubes in the room lit up with no power and blinked with Morse code. I had to remove the tubes from their fixtures and cover with towels so my roommate could sleep. Still here, Doug [https://hostingemail.xo.com/api/storage/[email protected]/signatures/images/2476c205-f457-4395-87cc-7aa199c734f2] On Thu, 5 Jul 2018 16:27:12 +0100, Michael Derby wrote: It’s not quite an “unintentional radiator” but if you had a wireless charger which did not contain any communication (e.g., a dumb charging signal without handshaking), then it would come within the scope of the EMCD and the LVD (not the RED), and RF Exposure would therefore be an issue under the LVD. Michael. From: McCallum, Andy [mailto:[email protected]] Sent: 05 July 2018 15:33 To: [email protected]<mailto:[email protected]> Subject: Re: [PSES] EN62311 - Human Exposure to Electromagnetic Fields Be surprised if any LVD could cause EMF large enough to pose a danger to Human Health. Intentional transmitters maybe, a rare beast to create those levels unintentionally at less than 1000V. Andy From: John Woodgate [mailto:[email protected]] Sent: 05 July 2018 10:28 To: [email protected]<mailto:[email protected]> Subject: Re: [PSES] EN62311 - Human Exposure to Electromagnetic Fields It applies to any LVD product, but there is a flow chart that shows that a simple assessment is possible if the product has no reasonable likelihood of producing sufficiently strong EMF. John Woodgate OOO-Own Opinions Only J M Woodgate and Associates www.woodjohn.uk<https://emea01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.woodjohn.uk&data=01%7C01%7CAndy.McCallum%40mottmac.com%7C3897dc1f76c0406b3a9808d5e259910b%7Ca2bed0c459574f73b0c2a811407590fb%7C0&sdata=vOXyjzMm8FtxrbHRrTRbkgWlhb8gQeuv%2FiISyiAwg24%3D&reserved=0> Rayleigh, Essex UK On 2018-07-05 10:09, Amund Westin wrote: EN62311 is listed in OJ and a harmonized LVD standard. Does EN62311apply to any LVD product or only products containing radio transmitters? Best regards Amund - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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