Re: [PSES] Couple of loosely related safety questions

Thank you, Rich! Over 240 have already registered for ISPCE 2024! This is the place to be for all Product Safety and Certifications knowledge transfer and networking - https://2024.psessymposium.org/. Best Regards and Be Safe, John John Allen | President & CEO | Product Safety Consul

[PSES] Lithium Button Cell Battery - NRTL markings

t possible the UR mark is on the Bulk packaging that the on-line supplier would have? Best Regards and Be Safe, John John Allen | President & CEO | Product Safety Consulting, Inc. Your Outsourced Compliance Department(r) 630-238-0188, Cell: 630-330-3145 [cid:image001.jpg@01D

Re: [PSES] Ferrules

-5VA/B minimum for permanently connected (to the building) products. Many Standards also have a flame spread test requirement if the part is of a certain size. Best Regards and Be Safe, John John Allen | President & CEO | Product Safety Consulting, Inc. Your Outsourced Compliance Department®

Re: [PSES] Maintaining UL Label when Modifying Electrical Enclosures in the Field

is the function of the push button switch? 2. Why are you removing it? 3. What is the switch rated? If needed Field Evaluation and Labeling can be done and will confirm if your changes are in compliance. Best Regards and Be Safe, John John Allen | President & CEO | Product Safety Consulting,

[PSES] Functional Safety

Hi everyone, We are in need of a Functional Safety consultant for contract work. Please reply as appropriate. If you have any questions, please don't hesitate to contact me. Best Regards and Be Safe, John John Allen | President & CEO | Product Safety Consulting, Inc. Your Outsou

[PSES] ISPCE 2023

Hi everyone, ISPCE 2023 is in Dallas, TX May 1-3 - https://2023.psessymposium.org/. I am Chairing the Compliance 101 Track again. If you considering a paper or presentation let me know. Papers and Presentation are due February 15th. Best Regards and Be Safe, John John Allen | President

[PSES] Wearables and UL 62368 vs UL 964 Electrically Heated Bedding

to Wearables that are made of fabric?? Wearable Technology Standards: * Wellness or Non-Medical Wearable: IEC/UL 62368-1 https://www.ul.com/services/wearable-technology-testing-and-certification I would appreciate any input you can provide. Best Regards and Be Safe, John John Allen

Re: [PSES] NRTL Marks on Industrial Pump Assemblies

they’ll get it into compliance. I hope that helps. Best Regards and Be Safe, John John Allen President & CEO Product Safety Consulting, Inc www.productsafetyinc.com On Jul 7, 2022, at 8:53 AM, Lauren Crane <1afd08519f18-dmarc-requ...@listserv.ieee.org> wrote:  [EXTERNAL

[PSES] IEEE International Symposium on Product Compliance Engineering (ISPCE) 2022 - Call for Papers

Hi, The Call for Papers for ISPCE 2022 is here. The deadline is April 13th. If you will be presenting in the Compliance 101 Track, please also contact me as I'm Chairing the Track. https://2022.psessymposium.org/ Best Regards and Be Safe, John John Allen | President & CEO | Pro

Re: [PSES] Will 5G Be Bad for Our Health?

Very well put Dan. Where in the risk assessment does it talk about “prudent avoidance”? A toaster is hot and has uninsulated live parts accessible while energized with a known shock hazard. Have a nice weekend!! Best Regards and Be Safe, John John Allen President & CEO Product Sa

[PSES] Engineering Manager Position Available

ed in many product categories and have managed engineers give me a call to discuss the opportunity. If you have any questions, please don't hesitate to contact me. Best Regards, John John Allen | President & CEO | Product Safety Consulting, Inc. Your Outsourced Compliance Department(r) 630-238-0

Re: [PSES] [EXTERNAL] Re: [PSES] electric shock from capacitor discharge

I believe most Standards that have a requirement regarding it, require bleed off within 60 seconds. From: Pete Perkins <0061f3f32d0c-dmarc-requ...@listserv.ieee.org> Sent: Wednesday, September 30, 2020 10:48 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] [EXTERNAL] Re: [PSES] electric

Re: [PSES] UL Listed Fuse vs Recognized

This is great information, thank you Scott. And thanks to everyone else who guided an old school compliance guy - We’re always learning!! Be safe out there, John From: Scott Aldous Sent: Tuesday, May 12, 2020 10:47 AM To: John Allen Cc: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] UL

Re: [PSES] UL Listed Fuse vs Recognized

ternal to a device where they are within a fire enclosure and only accessible to service personnel. This is a bit of an oversimplification, but I hope it helps clear it up a little. Regards, Ted Eckert The opinions expressed do not necessarily reflect those of my employer or UL. From:

[PSES] UL Listed Fuse vs Recognized

Hi, I hope everyone is good, healthy and being safe. Does anyone have an accurate explanation of how a fuse can be UL Listed vs UR? A fuse cannot stand alone as with other UL Listed products. UL categories are JDYX, JDYX2 Thank you and Be Safe, John -

Re: [PSES] Capacitor Friday question

Yup Old electrolytics need “time” and, IIRC, a gradually increasing voltage to reform before one applies the “full voltage”! I’ve probably told this story before, but, when at school “some decades” ago I built a valve/tube oscillator from stuff in a “junk pile” that I had bought from

Re: [PSES] CODEBOOK DOWNLOAD

Thanks Derek!! If you have any questions, please don't hesitate to contact me. Best Regards, John John Allen | President & CEO | Product Safety Consulting, Inc. Your Outsourced Compliance Department® 630-238-0188 www.productsafetyinc.com<http://www.productsafetyinc.com/> John

Re: [PSES] CODEBOOK DOWNLOAD

Thanks John! Here's the link to the subject site - https://codebookdownload.com/ Best Regards, John John Allen | President & CEO | Product Safety Consulting, Inc. Your Outsourced Compliance Department(r) 630-238-0188 John Allen-Past President - IEEE Product Safety Engineering Society

[PSES] CODEBOOK DOWNLOAD

? Thanks, John Allen PSC - USA - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable

Re: [PSES] [EXTERNAL] Re: [PSES] act of God versus safety

Rich, et al AH, now you are getting to the “specifics” J Whilst I (and many others!) are very well aware of all those other “contributory factors” (some of which I also outlined to SWMBO’s friend’s partner!), I didn’t want to “go into that level of detail” in my initial post >From

Re: [PSES] [EXTERNAL] Re: [PSES] act of God versus safety

Typo in the email below: - see highlighted words! L From: John Allen [mailto:john_e_al...@blueyonder.co.uk] Sent: 30 December 2019 21:24 To: 'John Woodgate'; 'EMC-PSTC@LISTSERV.IEEE.ORG' Subject: RE: [PSES] [EXTERNAL] Re: [PSES] act of God versus safety John W & Friends Ear

Re: [PSES] [EXTERNAL] Re: [PSES] act of God versus safety

John W & Friends Earlier this afternoon, we were visiting a friend of my wife and her partner – and, later during a general conversation, the latter and I got around to “risk assessment” (in the context of the Grenfell tower block fire disaster a couple of years ago), and so I outlined to

Re: [PSES] 80/80 rule

and Associates www.woodjohn.uk Rayleigh, Essex UK On 2019-11-18 20:02, John Allen wrote: Quick search on “80/80 rule history” yields (for a start!): “It was named after it's founder, the Italian economist Vilfredo Pareto, back in 1895. He noticed that people in society seemed to divide naturally

Re: [PSES] 80/80 rule

Quick search on “80/80 rule history” yields (for a start!): “It was named after it's founder, the Italian economist Vilfredo Pareto, back in 1895. He noticed that people in society seemed to divide naturally into what he called the “vital few,” or the top 20 percent in terms of money and

Re: [PSES] fire enclosure requirements for small Lithium battery

Which is possibly why there a "few" phone fires, especially when charged from the host of "cr*p"/dangerously poor 3rd-party chargers that are widely available (I am very careful with both the phones and the chargers that - occasionly, every 3-4 years - I buy). John E Allen W. London, UK

Re: [PSES] Grounding of metal cabinet

Ted Just a very minor clarification regarding appliance couplers – non-filtered ones don’t provide direct Ground connections to the chassis. Obvious I know, but could be overlooked. John E Allen W. London, UK From: Ted Eckert [mailto:07cf6ebeab9d-dmarc-requ...@ieee.org] Sent: 24

Re: [PSES] Frequency range for conducted emissions

An “easy one” for us “oldies” but I’m sure that John Woodgate will quickly reply “in detail” – the frequency limit relates directly to the “old” Long Wave” frequency band, which starts at 150kHz! J John E Allen W. London, UK From: 06cee064502d-dmarc-requ...@ieee.org

Re: [PSES] Product safety leading edge

And don’t forget about the work on mobile robots -R15.08 American National Standard for Industrial Mobile Robots and Robot Systems Best Regards, John John Allen Product Safety Consulting, Inc www.productsafetyinc.com<http://www.productsafetyinc.com> On Jul 27, 2019, at 10:08 PM, Richar

Re: [PSES] Exemptions from UK Plugs and Sockets Regulations

An interesting question, and, from the text of Schedule 1, I would guess that these are technically excluded (though, for why, I have no idea). In addition, that same exclusion would appear to include all the power line comms devices which use the mains supply network and also any BS1362

Re: [PSES] Tamper-proof Hardware

ld never have been included in the first place. John E Allen W. London, UK From: John Woodgate [mailto:j...@woodjohn.uk] Sent: 09 April 2019 09:40 To: John Allen; EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Tamper-proof Hardware I think that the major point is that Cl

Re: [PSES] Tamper-proof Hardware

. John E Allen W. London, UK From: John Woodgate [mailto:j...@woodjohn.uk] Sent: 09 April 2019 09:40 To: John Allen; EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Tamper-proof Hardware I think that the major point is that Clause 0 is purely advisory. It seems reasonable

Re: [PSES] Tamper-proof Hardware

upt dealings, especially in order to influence improperly (usually followed by with ) The example provided by John Allen (UK) is not tampering as he did not take the unit apart for any of the above reasons. Using the above definitions, the reasons for using any “tamperproof” construct

Re: [PSES] Tamper-proof Hardware

IMHO, the subject of “tamper-proofing devices” will be around for a “long time” because, once a “new” device is introduced, then “someone” will (pretty soon!) come up with a “workaround” – it’s just a case of when the workaround becomes available, and then when will someone find and use it, and

Re: [PSES] phishing e-mail from an old account of yours?

I've had several probably "nasty" emails from sources that appeared to have spoofed some of the email addresses used by myself and several people that I know, but please don't confuse me with John R Allen of Product Safety Inc. FWIW, I don't think the data breach in question was specific to

Re: [PSES] Mexico compliance approval for IT equipment

Don't forget NAFTA-related issues (especially in the "DJT Wall" context!) as Mexico probably cannot afford to be "too liberal" in what it can accept with the minimum of "bureaucratic rules" whilst still trying to protect its in-house labs & certification bodies as far as it legally can! John E

Re: [PSES] Type F receptacle wiring

anyone here know? Best wishes John Woodgate OOO-Own Opinions Only J M Woodgate and Associates www.woodjohn.uk Rayleigh, Essex UK On 2019-02-22 20:23, John Allen wrote: John Regardless of whether or not a CEE 7 plug is (and, apart from that particular version of the CEE 7 plug, almost, if not all

Re: [PSES] Type F receptacle wiring

ible in France and Belgium. Best wishes John Woodgate OOO-Own Opinions Only J M Woodgate and Associates www.woodjohn.uk Rayleigh, Essex UK On 2019-02-22 18:13, John Allen wrote: Doug As I am sure that many others will confirm, that CEE 7 socket does NOT have any defined polarity for the Live/

Re: [PSES] Type F receptacle wiring

Doug As I am sure that many others will confirm, that CEE 7 socket does NOT have any defined polarity for the Live/Line and Neutral contact tubes, and thus the Line/Live and Neutral wires to those contact tubes can & are connected either way around according to the “wim” of the installer –

Re: [PSES] Intro to Safety

Safety and Compliance https://ewh.ieee.org/soc/pses/index.html John Allen | President | Product Safety Consulting, Inc. Your Outsourced Compliance Department® 630-238-0188 www.productsafetyinc.com<http://www.productsafetyinc.com/> Although PSC maintains the highest level of

Re: [PSES] TRF Verdicts

FWIW, I was always deeply skeptical of the “(Pass, Fail, N/A)” criteria in the TRF’s because those were, and generally still are, almost totally dependent on “the eye of the beholder”, i.e. whoever does the compliance assessment! An (absolutely terrible!) example of that was what I found (in a

Re: [PSES] Japanese manis leads

: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Japanese manis leads John, On Fri, 7 Dec 2018 14:40:26 -, "John Allen" wrote: > Ref those 200V products: are they single phase 2-wire (Neutral + Live) + > Ground, OR split-phase (100V on each of 2 Live legs) + Neutral

Re: [PSES] Japanese manis leads

Tom Ref those 200V products: are they single phase 2-wire (Neutral + Live) + Ground, OR split-phase (100V on each of 2 Live legs) + Neutral return? (IIRC, it is the latter - probably introduced as a result of North American influence where that configuration is common for high consumption

[PSES] Functional Safety Expert

Hi, We're in need of a Functional Safety expert to join our project. Please respond directly to me. Best Regards, John jral...@productsafetyinc.com - This message is from the IEEE Product Safety Engineering Society

Re: [PSES] safety test equipment

Brian Commiserations on yourself "no longer needed" (really?) - but I hope/am sure that you will soon find a more-realistic company with a rewarding position J. John E Allen W. London, UK PS: I can say, with relative certainty, that before retiring a few years ago, I had "been

Re: [PSES] How to lose another million dollars

"Been there, seen that" OH SO many times ! L Emphasises the need for a defined "cradle to grave" Project Lifecycle which includes the Project Compliance targets at each stage, and with the responsibilities laid out in some detail so that progress can be accurately forecast and monitored - and

Re: [PSES] CE marking - mixture of responsibilities

Head in hands - and liability insurance paper in back pocket (hopefully)! From: James Pawson (U3C) [mailto:ja...@unit3compliance.co.uk] Sent: 30 August 2018 13:18 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] CE marking - mixture of responsibilities Charlie, John, thanks for the

Re: [PSES] Safety Test Templates Question

Having, over the years (!), seen a few TRF’s, I totally agree with the 1st sentence below – absolutely of no use to the “average” engineer in most companies, other than the test labs, because the “correct answers” are in the eyes of the beholders as there are so many possible interpretations

Re: [PSES] CE marking of machinery that moves about

Look for relevant Type B and specific Type C EN standards. John E Allen W.London, UK From: Pete Perkins [mailto:0061f3f32d0c-dmarc-requ...@ieee.org] Sent: 02 August 2018 13:29 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] CE marking of machinery that moves about Colleagues,

Re: [PSES] Safety design of shutter opening

Also used in Malta and Cyprus (even in “Turkish” Northern Cyprus IIRC!) – and then there is Gibraltar. John E Allen W. London, UK From: John Mcauley [mailto:john.mcau...@cei.ie] Sent: 16 July 2018 01:03 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Safety design of shutter opening

[PSES] FW: [PSES] EN62311 - Human Exposure to Electromagnetic Fields

In other words, become an "aquaphibian" (or something like that :) ) – “back to the Future” J -Original Message- From: Brian O'Connell [mailto:oconne...@tamuracorp.com] Sent: 05 July 2018 22:04 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] EN62311 - Human Exposure to

Re: [PSES] EN62311 - Human Exposure to Electromagnetic Fields

Ghery "Thanks" for that link - seems like we should all stop drinking/using WATER. Then just die of thirst and/or malnutrition and/or illness due to lack of basic hygiene! ;) Just goes to "show" that almost EVERYTHING (including thus EMF!), in "life" comes with "risks" - but didn't we all

Re: [PSES] Customer Requests for Risk Assessments

J -Original Message- From: Brian O'Connell [mailto:oconne...@tamuracorp.com] Sent: 18 May 2018 19:26 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Customer Requests for Risk Assessments Long ago, when men were men, women were women, and dogs did not wear scarfs (sometime

Re: [PSES] Customer Requests for Risk Assessments

Having been asked to do an RAR on very "difficult" project (a substantial update to the MoD/Quinetiq rocket projectile testing range control system at Pendine Sands in S. Wales!) some years ago, before I did that I made it very clear to the customer's Project Safety Engineer that - given the very

Re: [PSES] TRAC in the UK

TRAC was subsumed into the larger multinational company "ELEMENT" a year or two, and so you might want to widen your question/search. John E Allen W. London, UK From: Amund Westin [mailto:am...@westin-emission.no] Sent: 14 May 2018 21:07 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES]

Re: [PSES] Product Safety Testing and Evaluation training.

://www.psessymposium.org/pages/62368-1-open-forum John Allen | President | Product Safety Consulting, Inc. Your Outsourced Compliance Department® 630-238-0188 www.productsafetyinc.com<http://www.productsafetyinc.com/> <http://www.productsafetyinc.com/> President - IEEE Product Safety

Re: [PSES] Field Evaluation Engineer

To clarify, this role is for a Product Safety Engineer who will do compliance evaluations in the field. Must have a real good working knowledge of the NEC and a good mix of product experience. John Allen | President | Product Safety Consulting, Inc. Your Outsourced Compliance Department

[PSES] Field Evaluation Engineer

Hi, We're looking for a Field Evaluation Engineer for the USA Midwest area. Anyone interested or knows someone, please contact me directly. Best Regards, John Allen | President | Product Safety Consulting, Inc. Your Outsourced Compliance Department® 630-238-0188 www.productsafetyinc.com

Re: [PSES] Mains Conducted rf emissions measurements

Have you tried to isolate the original source of the noise - and then to supress that? John E Allen W. London, UK From: McBurney, Ian [mailto:ian.mcbur...@allen-heath.com] Sent: 26 April 2018 11:33 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Mains Conducted rf emissions measurements

Re: [PSES] Medical device risk assessment - faulty chargers

Rich Steps 1 to 4 are perfectly “sensible” but one needs to formalize the analysis – and methods like doing a Failure Modes Effects Criticality Analysis (FMECA) are not that “simple” when one has to do it in sufficient detail to prove the point (“been there, done that”)! John E Allen

[PSES] Battery Safety Expert

Hi, We’re looking for a battery safety expert to join us on a project. They need to be very current on high performance lithium-ion packs as the current best practices lead the standards a bit. Please contact me directly. Best Regards, John John Allen Product Safety Consulting, Inc

[PSES] UK BS 1363: 2016 Plugs, Sockets and adapters - what has changed? Free Intertek "White Paper"

Good afternoon. Just received this info email from Intertek in the UK, followed the link and downloaded the White Paper – it should be of interest to anyone who wants to know the changes and additions. Adds quite a number of requirements, such as for socket-outlets with built-in USB

Re: [PSES] Demo samples at stores

I don’t think the footnote was in the Blue Guide at the time (c2000) but that’s what I decided that we had to do, and to specify to trials teams (ours’ and the customers’), when we put prototype military equipment out for field trials – but sometimes it was difficult to persuade everyone

Re: [PSES] ESD question

This is a close parallel to the scenario where some gets a “shock” from the very small amount of residual stored energy in an appliance filter which has no bleeder resistors and is fitted on the supply side of the Mains ON/OFF switch. It “wakes them up” but does little actual harm – unless,

Re: [PSES] CI Software Flicker/Harmonics

FWIW, Brian could also see if it is possible to run the XP-based system under virtualization s/w (such as VWware - which I use to run a VERY old 16-bit game that can otherwise only be run under W7, or earlier, 32 bit - but I know "without actually knowing" that other virtualization apps could

Re: [PSES] CI Software Flicker/Harmonics

Or maybe Digital Research DRDOS? (DRDOS 6 was, for its time, “brilliant” IMHO, and a lot better than the then-current Microsoft equivalent J) From: John Woodgate [mailto:j...@woodjohn.uk] Sent: 20 December 2017 22:04 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] CI Software

Re: [PSES] Li-Fi

Also being a "Ted", (middle name is Edward, and Ted was how most people referred to my Dad - Obviously also an "Edward"!) but never liked it, Mr Eckert has my "full support" J From: Ted Eckert [mailto:07cf6ebeab9d-dmarc-requ...@ieee.org] Sent: 11 December 2017 22:16 To:

Re: [PSES] Li-Fi

Anyone remember those old TV IR remote controls? - absolutely PBA! Hope this "new" technology is a lot better! From: Edward Price [mailto:e...@jwjelp.com] Sent: 11 December 2017 18:44 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Li-Fi I seem to recall HP was touting some kind

Re: [PSES] Pilot rating

UL, AND every other certification body – especially if there is “money” in it L From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent: 07 December 2017 21:48 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Pilot rating UL does not have a sense of humor that we are aware of. TOB

Re: [PSES] EAC Mark in Russia

x 23427 Tigard, ORe 97281-3427 503/452-1201 <mailto:p.perk...@ieee.org> p.perk...@ieee.org From: John Allen [mailto:09cc677f395b-dmarc-requ...@ieee.org] Sent: Monday, December 4, 2017 6:57 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] EAC Mark in Russia Brian If y

Re: [PSES] EAC Mark in Russia

the first time governments have used existing regulations to erect trade barriers. Cortland Richmond 2017 5:45 PM, John Allen wrote: Probably due to Putin's desire to promote (by any means - including regulation!) for everything to be done in Russia, not elsewhere! John E Allen W. London, UK

Re: [PSES] EAC Mark in Russia

Richmond [mailto:k...@earthlink.net] Sent: Monday, December 04, 2017 5:08 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] EAC Mark in Russia If so, it would not be the first time governments have used existing regulations to erect trade barriers. Cortland Richmond 2017 5:45 PM, John Allen

Re: [PSES] EAC Mark in Russia

PS: Now recalled that Russia is part of the "Eurasian Economic Community" (EEC!!), as is Belarus - but we don't need to guess which the dominant partner in "that" EEC is! John E Allen W/London, UK From: John Allen [mailto:09cc677f395b-dmarc-requ...@ieee.org] Se

Re: [PSES] EAC Mark in Russia

odgy' test houses, too, so it may not be all political. John Woodgate OOO-Own Opinions Only J M Woodgate and Associates www.woodjohn.uk Rayleigh, Essex UK On 2017-12-03 22:45, John Allen wrote: Probably due to Putin's desire to promote (by any means - including regulation!) for everything

Re: [PSES] EAC Mark in Russia

Probably due to Putin's desire to promote (by any means - including regulation!) for everything to be done in Russia, not elsewhere! John E Allen W. London, UK From: Carl Newton [mailto:emcl...@gmail.com] Sent: 03 December 2017 22:20 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES]

Re: [PSES] Pickle

IEEE.ORG Subject: Re: [PSES] Pickle Is 'QVGS2' a new CCN? Brian From: John Allen [mailto:jral...@productsafetyinc.com] Sent: Thursday, November 30, 2017 8:51 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Pickle Hi, To pass along the learning that came out of this. A f

Re: [PSES] Pickle

. Thanks again for the input and help, John From: John Allen <jral...@productsafetyinc.com> Sent: Tuesday, November 28, 2017 3:02 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Pickle Thanks everyone! Either test or re-design is required. I appr

Re: [PSES] Pickle

Thanks everyone! Either test or re-design is required. I appreciate the input. John From: Doug Powell <doug...@gmail.com> Sent: Tuesday, November 28, 2017 2:07 PM To: John Allen Cc: EMC-PSTC Subject: Re: [PSES] Pickle John, UL 991 is a test

[PSES] Pickle

Hi, We have a pickle of a situation and wondering if anyone knows a simple fix. We have a moving wall that complies with the maximum force limits of UL962. An IC measures the voltage of a resistor and if appropriate, allows the correct current to be sent to a motor that moves the

Re: [PSES] Use of LED Spots in EMC Chambers [General Use]

Could there also be various high frequency sources within the lamps themselves which would are not filtered by the filters external to the chamber (and the lamps may not have properly shielded bodies and/or lenses)? John E Allen W.London, UK From: John Woodgate [mailto:j...@woodjohn.uk]

Re: [PSES] Regulatory requirements for MOVs placed line-to-ground on AC mains ports?

Having had a look at 62368-1 Ed 2, I think the relevant clause in that is 5.5.7. “SPDs” (“Surge Protective Devices”), 5.5.7.1 “Use of an SPD between the mains and earth” “Where a varistor is used between the mains and earth: – the earth connection shall comply with 5.6.7; and – the

Re: [PSES] Safety critical component part #'s and Agency approvals

ttp://www.jmwa.demon.co.uk/> www.jmwa.demon.co.uk J M Woodgate and Associates Rayleigh England UK is a sovereignty, not a Zollverein-ty From: John Allen [mailto:09cc677f395b-dmarc-requ...@ieee.org] Sent: Friday, September 22, 2017 9:05 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re:

Re: [PSES] Safety critical component part #'s and Agency approvals

And, as an example of “sorting” a supplier, we began to get hipot failures on a product and tracked it down to a simple IEC power outlet which was flashing over – the problem was finally tracked down to the supplier of the outlet assembly having changed the flux used for soldering wires to the

Re: [PSES] Safety critical component part #'s and Agency approvals

Rich & Friends I, too in a past life at HP at Bristol, took the same approach of making sure that our processes and productions were well in excess of what past experience had shown that UL/CSA inspectors had looked for – and, albeit with a couple of minor “glitches”, that resulted in a

Re: [PSES] Safety critical component part #'s and Agency approvals

AND, as I should have said, obtained up-to-date copies of the certification docs! John E Allen W. London, UK From: Regan Arndt [mailto:reganar...@gmail.com] Sent: 21 September 2017 21:39 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Safety critical component part #'s and Agency

Re: [PSES] Safety critical component part #'s and Agency approvals

Datasheets! Mainly marketing “BS”! Never believe them until you have checked in DETAIL with the mfr AND the certification bodies! John E Allen W. London, UK From: IBM Ken [mailto:ibm...@gmail.com] Sent: 21 September 2017 21:44 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES]

Re: [PSES] power strip details

ings are: "Maximum Charge: 3680W,16A/250V~" Don Gies <mailto:ddg...@verizon.net> ddg...@verizon.net (732) 207-7828 From: John Allen [mailto:09cc677f395b-dmarc-requ...@ieee.org] Sent: Friday, September 15, 2017 4:32 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [P

Re: [PSES] power strip details

es and 2 USB outputs. Its ratings are: "Maximum Charge: 3680W,16A/250V~" Don Gies <mailto:ddg...@verizon.net> ddg...@verizon.net (732) 207-7828 From: John Allen [mailto:09cc677f395b-dmarc-requ...@ieee.org] Sent: Friday, September 15, 2017 4:32 AM To: EMC-PSTC@L

Re: [PSES] power strip details

ary power tap. This was a convoluted method of allowing rack mounted power strips, and it was used only as a stopgap measure until testing to UL 60950-1 became common for rack mounted power distribution. Ted Eckert Microsoft Corporation The opinions expressed are my own and do not necessaril

Re: [PSES] power strip details

exception of a very few devices certified on both continents) recognized on the "opposite" sides of "The Pond". John Allen W. London, UK From: Don Gies [mailto:ddg...@verizon.net] Sent: 15 September 2017 13:16 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] power strip det

Re: [PSES] power strip details

such as those listed here http://cpc.farnell.com/search?st=plug%20top%20fuse) I believe that the standard for such UK power strips is probably BS 5733:2010+A1:2014 "General requirements for electrical accessories. Specification" - but don't have a copy and so can't comment in detail on wh

Re: [PSES] Separation of Circuits

Thanks Charles, I knew I was having a disconnect. Best Regards, John John Allen Product Safety Consulting, Inc www.productsafetyinc.com<http://www.productsafetyinc.com> On Sep 13, 2017, at 10:38 AM, Charlie Blackham <char...@sulisconsultants.com<mailto:char...@sulisconsultants

Re: [PSES] Separation of Circuits

a situation complies vs coming up with solutions. Best Regards, John John Allen Product Safety Consulting, Inc www.productsafetyinc.com<http://www.productsafetyinc.com> On Sep 13, 2017, at 9:45 AM, Ted Eckert <ted.eck...@microsoft.com<mailto:ted.eck...@microsoft.com>>

[PSES] Separation of Circuits

Hi, I'm struggling with a separation of circuits issue. The Standard I'm using is UL60065. Many other Standards allow wires of different voltages to be in contact with each other as long as they're both rated for the higher voltage. UL60065 doesn't have a separation of circuits section and

Re: [PSES] Why higher value for DC in SELV

Hi Rich, Very well stated, as always. Your contributions to our industry will forever be appreciated. Thank you and Best Regards, John John Allen Product Safety Consulting, Inc www.productsafetyinc.com<http://www.productsafetyinc.com> On Sep 2, 2017, at 3:47 PM, Richard Nut

Re: [PSES] Routine Test 60950-1, 62368-1

Whilst generally not a mandated production test, a set of touch and ground conductor leakage currents might be a good idea when you have quite a few modules with different PSUs in the same rack/assembly, since you may well then exceed the maximum allowed for a unit with a single power cord with

Re: [PSES] God EMC practice

I'm sure some agencies and companies have rules for this aspect, but I'm not sure about "God"! J From: Kim Boll Jensen [mailto:k...@bolls.dk] Sent: 01 September 2017 14:01 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] God EMC practice Hi One of our customers want to know if there are

[PSES] Russia introduces liability for failure to adopt product recall measures

FYI from the UK Law Firm CMS "Law Now" site: http://www.cms-lawnow.com/ealerts/2017/08/russia-introduces-liability-for-fa ilure-to-adopt-product-recall-measures?cc_lang=en

Re: [PSES] Test

FWIW, August is always a very quiet time on this (and many other) forum because (at least in the Northern Hemisphere) many people are on holiday/vacation! J - and we are going on holiday next week J From: Doug Nix [mailto:d...@ieee.org] Sent: 29 August 2017 22:16 To:

Re: [PSES] Surge Suppression - Dos, and Don'ts

Brian C I faced the very issue that you raised in your last para below at a company (best not to name!) for which I worked after I "inherited" a situation where unprotected GDTs had been designed in to correct an EMC-specific surge test failure, and further design changes were not really

Re: [PSES] 230V 3-phase in Europe

mailto:EMC-PSTC@LISTSERV.IEEE.ORG> EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] 230V 3-phase in Europe That’s correct John, and some old houses still have 127/230 (Belgium). My home has now 400/230 Y thus with Neutral. Best regards Kris Carpentier, From: john Allen [ <mailto:09

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