Re: [PSES] [EXTERNAL] Re: [PSES] confused about the following exempted equipment from the FCC

...@ieee.org] Sent: Wednesday, December 21, 2016 1:57 PM To: Gary McInturff Cc: EMC-PSTC@listserv.ieee.org Subject: [EXTERNAL] Re: [PSES] confused about the following exempted equipment from the FCC Gary, my understanding is section B applies to electric utilities only, or electric utility hardware

[PSES] confused about the following exempted equipment from the FCC

The term public utility includes equipment only to the extent that it is in a dedicated building or large room owned or leased by the utility and does not extend to equipment installed in a subscriber's facility. Gary McInturff Reliability/Compliance Engineer Esterline In

Re: [PSES] [EXTERNAL] Re: [PSES] Which Safety Test Agency Reports are accepted by City of LA Test Lab (please provide text of requirement or code)

It was always my impression way back then that the case was if you had no NRTL then you had to have a LA investigation for items within its jurisdiction. Of course back then the only NRTL was UL as defined by the NEC(?). Several now appear. I could have that backwards. From: Richard Nute [mailt

Re: [PSES] [EXTERNAL] Re: [PSES] Public view of this email server?

Actually the 1st amendment says that congress can’t prohibit speech. It says doesn’t address public or businesses restricting speech. The First Amendment to the U.S. Constitution reads: Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof;

Re: [PSES] Paper Manuals?

I haven’t tried in a while but at the time - 10 years ago and got the same mixed results you appear to have gotten. When pressed about the only reason they could give me was concern was that not all people have access to computers etc. to read the manual even if given a disc in the shipping con

[PSES] Humidity test.

ct customer doesn't know either - and getting answer from his customer is egregious Anybody? Gary McInturff Reliability/Compliance Engineer Esterline Interface Technologies Featuring ADVANCED INPUT, GAMESMAN, LRE MEDICAL, and MEMTRON products 600 W. Wilbur AvenueCoeu

Re: [PSES] Automated vehicles.

The cars compare value and thus the presumed value of the occupants and the cheaper car drives off the cliff. I only wish that won’t be at least a consideration. Generally I’m more optimistic than this. From: Ted Eckert [mailto:07cf6ebeab9d-dmarc-requ...@ieee.org] Sent: Monday, November 07, 2

Re: [PSES] [EXTERNAL] Re: [PSES] Automated vehicles.

That just adds a third dimension to the issue -Original Message- From: John Woodgate [mailto:jmw1...@btinternet.com] Sent: Monday, November 07, 2016 12:26 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [EXTERNAL] Re: [PSES] Automated vehicles. By that time, flying cars will be normal. With

Re: [PSES] [EXTERNAL] Re: [PSES] Operating temperature range for consumer electronics & electrical appliances

Mil-310 Climatic conditions might be an interesting read for you. Granted you aren't talking about military equipment but this standard has a lot of useful information about temperatures, altitudes etc. all around the world. It won't tell you what your product should be rated from but it will gi

Re: [PSES] [EXTERNAL] Re: [PSES] Fwd: ESD, part of our training Enjoy!

At least you were annoying somebody else. I was demonstrating, from a personnel safety standpoint, the need for the bleeder resistors and the ESD bench insulator. Charged the horizontal plate up to about 30K (good old Andy Hish ESD gun) and was pushing back the insulator. I accidentally came in

Re: [PSES] [EXTERNAL] Re: [PSES] 2nd hand or refurbished products

John Given that standards in EU have a Docopocoss, I would think that refurbished equipment can ship to and around the EU only if the current EMC and safety directives have been met. So it is more than just replacing worn-out or failed parts and shipping willy-nilly, but must demonstrating compl

Re: [PSES] [EXTERNAL] Re: [PSES] When is EMI testing performed?

That is the preferred method for Mil-810 testing. The rational is that they would like this thing to work within its actual environment not as a lab queen, I have not seen it required in commercial work. In my opinion it is one of the reasons that major manufacturer's like Dell and others often

[PSES] capacitive touch equipment

s etc. I'm familiar with mil emc testing just not the pcap itself thanks Gary McInturff Reliability/Compliance Engineer Esterline Interface Technologies Featuring ADVANCED INPUT, GAMESMAN, LRE MEDICAL, and MEMTRON products 600 W. Wilbur AvenueCoeur d'Alene, ID

Re: [PSES] [EXTERNAL] [PSES] Spark Ignition Source

Doug Don’t have the answer to your actual question, but are you sure its natural gas and not N Hexane gas? I presume you're working on LN system or something but you may want to confirm, the gas type From: Doug Powell [mailto:doug...@gmail.com] Sent: Tuesday, August 16, 2016 4:53 PM To: EMC-PSTC

Re: [PSES] SAFETTY FEATURES controlled by ....SOFTWARE

Well software types are devious by nature and probably one of the reasons the FAA kinda-sorta strong arms developers in to using ASICS, PALS and EPROMS and the like. The theory is that this devices are not Von Neumann architecture with various entry/exit decision points that lead to a plethora o

Re: [PSES] Electronic versions of standards and DRM

Think you just need to click on the language button in the upper right corner – more or less. I use this all the time and they are in English and significantly cheaper than other sources – IEC etc. They are members and these are official standards not some sort of change the cover letter and cal

[PSES] Retirement and subsequent job opening

bove or you can send it to me but please do so privately rather than spamming the list Gary McInturff Reliability/Compliance Engineer Esterline Interface Technologies Featuring ADVANCED INPUT, GAMESMAN, LRE MEDICAL, and MEMTRON products 600 W. Wilbur AvenueCoeur d'

Re: [PSES] AMA Warns of Harm from LED Streetlights’ Blue Light

Redoing by basement. I looked for lights with a 3000K temperature. I didn't like the lower temp yellowish lighting. Once you notice it you can't stop thinking about mortuaries and the dim yellow light they use. Nobody else in the family has noticed but they sure like playing ping pong and readin

Re: [PSES] slightly off target but NEMA 4

Nokia - US) [mailto:don.g...@nokia-bell-labs.com] Sent: Friday, June 10, 2016 10:17 AM To: Gary McInturff; EMC-PSTC@LISTSERV.IEEE.ORG Subject: [EXTERNAL] RE: slightly off target but NEMA 4 Gary, The short answer for the difference in tests is because the NEMA 250 and IEC 60529 standards evolved sepa

[PSES] slightly off target but NEMA 4

requirement of IPX6 requiring 65 gallons per minute. Yikes! Anybody know a reason why that, to me, outrageous flow rate. I'll get the pumps etc. but that just seems way overkill so I'm just trying to put some reasoning behind the number. Gary McInturff Reliability/Complianc

Re: [PSES] another MDD question

I'll go a second burrito for the guys that came up with the info Thanks -Original Message- From: Brian O'Connell [mailto:oconne...@tamuracorp.com] Sent: Wednesday, June 01, 2016 11:42 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [EXTERNAL] [PSES] another MDD question Appreciate the link to

[PSES] 60601-1-2 edition 4 acceptance dates and DOW of edition 3

epted standards are required for new submittals. In Europe, CENELEC has voted affirmatively to accept the 4th edition but has not set a date to withdrawal (DOW) the 3rd edition. The DOW of the current 3rd Edition is expected in the 2017-2018 timeframe. There is no grandfathering in Europe.

Re: [PSES] [EXTERNAL] Re: [PSES] 47 CFR Part 15 Subpart B / ICES-003 applicable/mandatory for an industrial personal computer?

I interpreted the original post correctly this was a system that was developed by the original posters company expressly to be used in the industrial market. It might look like a personal computer but there is another factor to be considered. The OEC document provides an escape clause, if you wi

Re: [PSES] Agilent/Keysight repair sources?

I'd be most curious as well. I just developed a problem with my analyzer and looking for repair and cal. From: Schaefer, David [mailto:dschae...@tuvam.com] Sent: Wednesday, February 17, 2016 9:21 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [EXTERNAL] [PSES] Agilent/Keysight repair sources? All,

Re: [PSES] Marine Equipment for CE

Iec 60945 has immunity requirements as part of the standard and calls out iec 60533 as a normative reference.. From: John Allen [mailto:jral...@productsafetyinc.com] Sent: Tuesday, February 02, 2016 10:09 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [EXTERNAL] Re: [PSES] Marine Equipment for CE t

Re: [PSES] [EXTERNAL] [PSES] AU CISPR 22 Class B Interpretation

These vehicles travel between residential and commercial zones on a regular basis, so on that alone I would agree with the class B assessment, but I'm wondering if you don't have lots of other EMC issues to deal with - automotive immunity etc. The only time I've personally seen an exemption for

Re: [PSES] Highest clock frequency in a device.

aw a different conclusion and hence my question about exact phrasing. Thanks folks. I truly do appreciate the assistance. Gary McInturff Reliability/Compliance Engineer Esterline Interface Technologies Featuring ADVANCED INPUT, GAMESMAN, LRE MEDICAL, and MEMTRON product

[PSES] Highest clock frequency in a device.

I was looking through standards I have but can't find an absolute description of highest clock frequency. The overall device has clocks well below 105MHz, the point at which the spectrum above 1 GHZ must be investigated during radiated emissions. However one of the IC's has an internal frequency

Re: [PSES] [EXTERNAL] Re: [PSES] Generic EMC Precedence over Basic Standards and Fast Transient and Surge Immunity Questions

From the link suggested below. “In some cases they may be completely adequate in themselves for use with particular products and may be used for product certification. This in turn relieves a product committee from developing a new standard and is very much in line with the IEC's forward-looking

Re: [PSES] EN 55035/CISPR35

I certainly wouldn't assume that. Korea already wanders pretty much to its own drum. The test voltage for example requires testing at their specified voltages that don't match up with the rest of the world even though it is within the tolerance bands. (if I remember correctly) The last time I d

[PSES] Cable retention force

Does anybody know of a standard which describes cable retention force other than safety standards such as 60601-1 (Medical General Safety) or 60950 (ITE general safety) and if so can you give me the numbers. The product is about 2 pounds. ITE would say that the value is about 6 pounds. - --

Re: [PSES] SV: [PSES] Stricter limits than legal (CISPR11, IEC, etc.,) Where?

I think I have told this story before but you asked so now you have to read it. Back around 1975 I was minding my own business when I got a letter from the FCC stating that the police department's car radios could not transmit when in the vicinity of a bank in Fallon Nevada. This was for a clas

Re: [PSES] Stricter limits than legal (CISPR11, IEC, etc,) Where?

Cispr 22 die, and maybe still does talk about statistical sampling during test in lieu of pulling some off of the assembly line. I’ve seen the big kids (HP, Intel etc. ) do this on complete personal computer systems. In fact I witnessed in when I was in Europe working with HP when one of our com

Re: [PSES] Unexplained High Fallout of Power Supplies

owerful, and much I/O. Wishing much luck to the other Brian Brian -Original Message- From: Gary McInturff [mailto:gary.mcintu...@esterline.com] Sent: Thursday, September 17, 2015 8:45 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Unexplained High Fallout of Power Supplies Brian Have you t

Re: [PSES] Unexplained High Fallout of Power Supplies

Brian Have you tracked the time to failures and put it on a Weibull analysis to see if these are truly random failures. I'm wondering if the power supply components are not properly derated and are overstressed. Maybe they are failing not from a transient event but components are being overdriv

Re: [PSES] Complaint-Driven Immunity

The telecommunications industry has always had serious concern over product robustness: mechanical, safety, and EMC which was reflected in their private industry NEBS program. These were developed long before the wireless devices proliferated. These were private industry standards were develope

Re: [PSES] RF Common Mode Immunity Test Question

From: Gary McInturff [mailto:gary.mcintu...@esterline.com] Sent: Wednesday, September 16, 2015 7:32 AM To: Ted Eckert; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] RF Common Mode Immunity Test Question Ted I was thinking about this on the drive in this morning - not from a power grid build

Re: [PSES] Decoupling cap

I wish I could find the article by Bruce Archambeault and decoupling and the PCB board inductance contribution but unfortunately I haven't the time but it was a great extension of the ESR curves of capacitors to include the effects of vias, and other inductance "adders" to the base capacitor cur

Re: [PSES] RF Common Mode Immunity Test Question

Well not really John - ANSI has no regulatory authority but money does. A business isn't likely to simply add either NRE cost or cost per unit without justification - poor product performance, competitive advantage, regulation. Poor performance isn't even a clean definition - if I have one failu

Re: [PSES] RF Common Mode Immunity Test Question

IMO - The FCC was commissioned with protecting the public airways only - a far different scenario than in the EU. As such they worry about emissions coming from any unintentional or intentional radiator that would be detrimental to the public airways recivers or transmitting equipment. They were

Re: [PSES] EMC requirements for Korea

ers, Chris. From: Gary McInturff [mailto:gary.mcintu...@esterline.com] Sent: 20 August 2015 18:22 To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] EMC requirements for Korea Brian That has not been my experience in the past with Japan via VCCI. One joins

Re: [PSES] New EMCD DoC Requirements

Long story short. They are trying to directly tie down the blame here. A statement that the declaration is issued under the sole responsibility of the manufacturer (so don't blame the lab or the distributor (or even an outside contract designer) Signed for and on behalf of - the CEO doesn't get t

Re: [PSES] EMC requirements for Korea

Brian That has not been my experience in the past with Japan via VCCI. One joins with VCCI as an associate(?) or something and they will then take reports from you, but the labs VCCI registration numbers need to be included. I sent the data and really overnight I had notice that they received it

Re: [PSES] ISO TC 15223-1 TR 60878 iso/CD 15223-1

ut it. Thanks to all who responded. mac -Original Message- From: Brian Oconnell [mailto:oconne...@tamuracorp.com] Sent: Friday, July 31, 2015 11:29 AM To: Gary McInturff; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: ISO TC 15223-1 TR 60878 iso/CD 15223-1 Do not have either standard, and hav

[PSES] FW: ISO TC 15223-1 TR 60878 iso/CD 15223-1

one I have is sufficient for medical icons. Does one subsume the other? I tried to look at dates and history of both hoping they would somehow refer to each other - but no such luck Thanks Gary McInturff Reliability/Compliance Engineer Esterline Interface Technologies Featuring ADVANCED

Re: [PSES] D of C and product safety warnings and caution markings

We put a copy in the user manual, a web address, and an address from which you can get an actual signed DoC, rather than a copy of the signed DoC that you would download off the website. Additionally along with the shipping documents we include a copy of the DoC, along with printing the CE logo

Re: [PSES] Shrink-wrap on soldered connections

ks is there possible qualification as an insulator... ?? Gert Gremmen Ce-test From: Gary McInturff [mailto:gary.mcintu...@esterline.com] Sent: Tuesday 10 March 2015 20:14 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Shrink-wrap on soldered connections I've seen the same, although I g

Re: [PSES] Shrink-wrap on soldered connections

I've seen the same, although I generally use double crimp wire connections even on the smaller gauge wires. One crimp obviously attaches to the copper conductor the other crimp attaches to the wire insulation. Both Crimps are made with the same tool in the same crimping action. I suppose there i

[PSES] Black Bar under WEEE symbol - still needed or was it eliminated? Thanks

The WEEE symbol has (had) a black bar or date area to indicate that the product had been introduced after April in 2005, but I thought that the bar has now been removed. True/False? Thanks Gary McInturff Reliability/Compliance Engineer Esterline Interface Technologies Featuring ADVANCED

[PSES] WEEE symbol

The symbol has (had) a black bar or date area to indicate that the product had been introduced after April in 2005, but I thought that the bar has now been removed. True/False? Thanks Gary McInturff Reliability/Compliance Engineer Esterline Interface Technologies Featuring ADVANCED INPUT

Re: [PSES] EMC on Industrial Cut-Off Saws

And the dreaded - "the other guy doesn't do it why are we" Heavy sigh. By the way not too long ago I saw the pragmatic answer to that. Company A built a product. For whatever reason Company B challenged the EMC. They tested at a lab and sure enough failure. I don't know how badly it failed but it

[PSES] iso 14971 latest

I was looking for the latest version of the above standard. After looking at a couple of sites the edition 2 2007 seems to be the most current, but then I see a a JIS T 14971:2012 - What is this? Thanks Gary McInturff Reliability/Compliance Engineer Esterline Interface Technologies

Re: [PSES] 60950-1 PSU in a 61010-1 product

One of the selling points in the risk based version of 60601 was the ability to do things outside of the prescriptive nature of the standard. Including the use of ITE products which I believe meant 60950 power supplies were the main point of interest. I haven't tried that approach so I don't k

Re: [PSES] [Bulk Mail] Re: [PSES] Misuse mains cordset

Not trying to start any arguments here, but the total subjectivity of this issue really drives me nuts and leaves so much for difference of opinion that it in itself becomes a regulatory barrier should there be a disagreement. Aircraft FEMCA's for example have fixed time requirements for failure

Re: [PSES] Reliability

John you're going to be wrong no matter what you do - depending on who you are talking to. The 10 degree rise = twice the failure estimation is based on the Arrhenius model - which is actually a chemical model, but widely applied to electronics So as a rule of thumb you can state you accelerati

[PSES] Human fingertip capacitance.

have the EE working the design to go back to the component supplier but haven't heard back from them yet. Thanks Gary McInturff Reliability/Compliance Engineer Esterline Interface Technologies Featuring ADVANCED INPUT, GAMESMAN, and LRE MEDICAL products 600 W. Wilbur Avenue Coeur d&#

Re: [PSES] California Prop 65 - here's your sign

n Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: Thursday, October 02, 2014 9:14 AM To: Gary McInturff Subject: Re: [PSES] California Prop 65 In message , dated Thu, 2 Oct 2014, Gary McInturff writes: >Nope even having Ebola doesn't require a sign apparently. But I would >bring materials

[PSES] California Prop 65

they have a contact point so the interested consumer could follow up should they choose, but certainly a warning can't be all that is required for the 800 or so chemicals listed. Is there no requirement for removal or reduction to the safe harbor levels? Thanks Gary McInturff Reliab

[PSES] Visible - legible

nother non-definition because readable isn't defined), Gary McInturff Reliability/Compliance Engineer Esterline Interface Technologies Featuring ADVANCED INPUT, GAMESMAN, and LRE MEDICAL products 600 W. Wilbur Avenue Coeur d'Alene, ID 83815-9496 Toll Free: 800-444-5923 X1XXX Tel: (

Re: [PSES] weird stuff in agency agreement form

I don't think this is all that peculiar in the US right now. When signing the agreement forms with UL you agree to unannounced audits and inspections and your factory, and other factories in which you assembly the equipment. It doesn't give them the authorization to inspect your suppliers - just

Re: [PSES] Failure of Radiated emission

Exactly. In fact before the "standard" setup the worst case setup would mean an examination of permutations. A system of 6 devices could have a million test configurations. A,B,C,D,E,F - A,C,D,E,F,B - A,C,D,E,B, F ad nausium. And a strict interpretation of that could mean that you do if for mult

Re: [PSES] RF shielding in clothing.

Snooping just poked it's little head into my life recently. There are about a bazillion people monitoring, or capable of monitoring, you, Apple, Samsung, NSA, local police, etc. And even though I knew it was being done I posted a picture to social media that was taken by someone else. The app

Re: [PSES] Vertical SAR Phantom?

NWEMC in Portland Oregon Northwest EMC, Inc. 22975 NW Evergreen Parkway Suite 400 Hillsboro, Oregon 97124 Bus: (503) 943-3124 Bus Fax: (503) 844-3826 E-mail: kvall...@nwemc.com www.NWEMC.com/testing-capabilities/wireless/sar-testing

Re: [PSES] FCC EMI Test and Ferrites on Cables - a conundrum

Playing the devil advocate here only because I find this interesting and I'm not advocating anything. Heck I'm probably just arguing for argument sake. If all cables are not equal as Ghery and note and the designer/manufacturer has knowledge of that don't the cables then become special accesso

[PSES] Changes to verified equipment

mission allow release to production without outside testing? For the EU I would put the results of the test and rational for not testing further in the compliance folder. I have the money but don't want to spend it needlessly. Thanks Gary McInturff Reliability/Compliance Engineer Es

Re: [PSES] Conducted Immunity Software

This is a big decision both in operating efficiency and cost. I've seen a few labs try to write their own software and they all spent more money than buying the commercial versions - in fact three that I know of abandoned the software because it didn't fully do what they had wanted. Given that I

Re: [PSES] Benchmarking Reporting Relationships (Corporate Management Structure)

We are under the engineering group - as all of my history has been. Design for safety and EMC starts at the "napkin" drawing stage and are designed in, they are not process controlled in. Engineering is primarily tasked with design, QA is primarily tasked with reproducibility and variability. Pro

Re: [PSES] Television Manufacturing Documentary From The Late 1950's - YouTube

This was truly fascinating - from the height of the pants to the tools they were using. I noticed the open field test site and I sure hope they were looking at specific frequencies since they were doing that with dipole antennas, and I'll bet it was a receiver not a spectrum analyzer. I had inte

Re: [PSES] radiated emissions testing may understate actual emissions, an example using a class D stereo amp

http://www.abcfoxmontana.com/story/25679777/plane-just-misses-sunbather-on-beach-in-low-landing Apparently Gert has been flying over the beach and was distracted by the LED lamp in this guy's back pocket! Gmac -Original Message- From: Pettit, Ghery [mailto:ghery.pet...@intel.com] Sent

Re: [PSES] Standards for labels

Agree except I too have had to repeat the rub test before UL will send the report and data off to their CB report writers. We use and describe the UL recognized labeling system - which includes the ink (ribbon), printer, label surface material, and label adhesives are all as part of the recogni

[PSES] ACA (ACMA) approval process time

Does anybody have feel for how long the Australian or New Zealand officials take to authorize usage of the c-tick (ITE) logo? Presuming of course the requisite reports are available at the time of submittal - days, weeks, months? Thanks Gary McInturff Reliability/Compliance Engineer

Re: [PSES] Concerning FCC classification of digital devices

In my opinion the customer's analysis is correct - and he's ultimately responsible for the decision right or wrong. I have had a similar experience. It was battery powered and could be programmed at the factory through a USB hub - factory only customers can't use the connection to program or d

Re: [PSES] Curious Situation in Italian Customs

Well you CB test report would have to have been done by a CAB accepted by EU, and that is a lot of other people other than TUIV - UL can, several different TUV's exist that can, CSA can, and the list goes on. The emissions report is done to EU standards by a test facility that meets the NIST req

[PSES] E-stop graphic symbols

7;t want to buy the standard without knowing I'm going to get the information that I want. Thanks Gary McInturff Reliability/Compliance Engineer Esterline Interface Technologies Featuring ADVANCED INPUT, GAMESMAN, LRE MEDICAL, and MEMTRON products 600 W. Wilbur Avenue Coeur d'A

semi standard users - perfluorocarbons

e a pretty open ended question but I would appreciate practical insight and web links that can educate me. Thanks Gary McInturff

RE: Blocked ventillation testing

Most installation instructions note that you can't block the ventilation openings during install and not to rest equipment on top etc. The mechanical guys also have to watch out that if there are vent openings in the sides they can't be block by the equipment slides or uprights. So not disputing w

RE: Blocked ventillation testing

If the fan tray only has a single power source coming in then you kill the power but the fan exhaust ports are still left open. The fan tray failure shouldn't be simulated by either covering all of the exhaust ports and leaving the fans running or, covering all the exhaust ports and the fan power r

RE: Blocked ventillation testing

One fault at a time. You can choose, your decision not theirs, to block all at once to save time. (Make them show you how much they are going to reduce the test cost with this "streamlined testing" Gary From: Robert Johnson [mailto:robe...@rcn.com] Sent: Tuesday, November 25, 2003 7:56 AM To: e

RE: CE Marking of Shipping Cartons

Richard, France stopped a product shipment because there was no CE mark. Normally, this marking would have been on the container as well as the actual product - but the label was left off by the manufacture ring folks in error. I guess I can't really tell you that having the box labeled wo

RE: GR-1089 Issue 3: 3.2.1 Radiated Emission Criteria

The FCC does have a residential public utilities exemption that allows the operation of Class A equipment (FCC class A) in the residential environment (normally a FCC class B case), provided the equipment is in a large room which is owned by the utility. This allows for equipment going into te

RE: Power adaptor to Australia

Barry, Quick question. If the supply doesn't have the C-tick mark but is used in a product that does how does one get then get a replacement or spare power supply into the country? Gary From: Barry Esmore [mailto:bar...@melbpc.org.au] Sent: Tuesday, November 18, 2003 4:33 AM To: EMC-PST

RE: Grounding

terists of the world its a struggle to accept. Gary >From: "Price, Ed" >Reply-To: "Price, Ed" >To: "'emc-p...@ieee.org'" >Subject: RE: Grounding >Date: Mon, 17 Nov 2003 07:06:30 -0800 > > > > >-Original Message- &g

RE: Grounding

John, You are correct, but you have just presented the conundrum of the thread. "Reliably grounded" can be determined through test - 25 or 30 amps for a minute. A new hinge will likely pass that test. A "used" one may likely fail because of the corrosion and wear discussed by othe

RE: Grounding

Hinges will likely meet the 0.1 ohm criteria when new but fail over time. They typically don't have enough contact pressure to insure any type of EMC grounding/bonding and could potentially be a bigger problem. Gary From: drcuthb...@micron.com [mailto:drcuthb...@micron.com] Sent: Friday, Novemb

RE: Machinery Directive acoustic requirements

On the same, bigger than a breadbox, piece of equipment I ran a test in both a reverberating chamber and sweeping the microphone around the equipment - as described in the ETSI 300-019 (I think) tests, and those described in the NEBS suite using a hand held sound meter. The differe

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_ Crave some Miles Davis or Grateful Dead? Your old favorites are always playing on MSN Radio Plus. Trial month free! http://join.msn.com/?page=offers/premiumradio This message is from the IEEE EMC Society Product Safety Techn

Re: opinions, please

Heck, I'm not even sure you can get consensus on the onboard clock.In the past there was a small thread about PLL generated clocks on IC's - such as PHY's etc. They are externally clocked at 125 Mhz and generate an internal 1.25 GHz clock which doesn't leave the chip. Some argued that the 1.25

RE: opinions, please

Well, playing the devils advocate here. If RAM is an apparatus if you can install it on into a socket, but not an apparatus if I buy the RAM as a surface mount, or through hole device? Gary >From: john.radom...@modicon.com >Reply-To: john.radom...@modicon.com >To: emc-p...@majordomo.ieee.org >

RE: opinions, please

Doug, I understand the point you are trying to make, but I see the memory more analgous to a resistor array than a disk drive. Certainly there is much less complexity than a disk drive, the ram doesn't have read head drive motors, position reading devices, its own memory and controllers - for D

Re: Equipment Calibration

Intereseting, I think the ISO and in particular the lab guides indicate simply that if equipment doesn't need calibration it is marked as such. The other stuff obviously must have a cal sticker on it. There are all kinds of lab supplies lying around just to power products during test etc that d

Re: opinions, please

As long as your asking for opinions. I don't have the definitions in front of me for fine slicing but its a gob of silicon - just like the lowly and gate, it doesn't alter or process anything it just remembers things and changes its mind only when instructed to. This might be more interesting q

Re: EU directives for SMPS

Mike,This won't address you question directly - but this is often a problem with SMPS folks for a couple of reasons. 1) Price competition can be pretty cut throat so they are not wanting to do anything they don't have to. 2)The results of the emissions tests are heavily dependant upon the syste

Re: Flammability Testing

John, I'm unfamiliar with the standards you reference, but the flammability testing will be different if it’s used for a small component - smaller than a breadbox, or whether it is structural - say Wall board or roof tiles. UL's Northbrook (Illinois) office has a huge facility for just that

Re: Regulatory Plan

For ITE equipment and UL the process and the costs are almost identical these days anyway - since they went to the new CB style report at UL. Even before that I typically received both reports and as John notes it has saved me time and expense in the long run. It also makes getting a Western Europe

Re: On-line Pay stubs

This is a multi-part message in MIME format. Well, my last employer did that - but they also told me I didn't work there anymore so I think it might be a moot point Gary - Original Message - From: Aschenberg, Mat To: 'emc-p...@majordomo.ieee.org'

Re: metallic coatings

I agree with Joe and want to point out one other process for adding metal to plastic. I believe the coating is probably cheaper than the inner metallic housing, but I think you'll get better performance with the inner shield, in particular if you haven't designed the plastic enclosure to work w

Re: Job Opportunity - Maryland

Not really buying this argument. I too spent a second considering that they were looking for some sort of experience being taught only in the last 20 years or something. But with even the slightest of thought it would have been stated completely different. EG Need college experience in ASIC develop

Re: Corrosion tests - NEBS or Milspec acceleration factors?

sfies the screening requirements or else they would have been changed long ago to something that did meet the equipment and time requirements. Can you give me a little insight? Thanks Gary McInturff

Corrosion tests - NEBS or Milspec accleration factors?

Question came up. Is there any real time correlation for some of the NEBS endurance tests. Salt corrosion (outdoor units - GR-487) for example.? In other words does the 200 hour test relate to 20 years real exposure to salt fog and spray common in port cities. Same question for the Mix flow gas

NEMA ratings

Does somebody own the NEMA ratings or is it a bit like the CE mark. Test to the appropriate standards and claim you are NEMA class whatever? How about the European IP ratings - owned (meaning you have to submit to some specific organization) or attested to through testing. Thanks Gar

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