Re: [PSES] [EXTERNAL] Re: [PSES] Mandatory certification

Bernd, I don’t know any jurisdiction that would accept a manufacturer self-declaration if the jurisdiction is requiring a safety certification. An alternative to an NRTL listing is an NRTL field inspection/label which is unique to each product at each installation. -Dave From: Dürrer Bernd

Re: [PSES] Safety lab basics

Depending on your EUT and ratings you’ll need something to control the supply input voltage and perhaps frequency, such as a Variac (voltage only) or inverter. You’ll need a sound level meter if EUT is machinery. -Dave From: IBM Ken [mailto:ibm...@gmail.com] Sent: Friday, January 10, 2020

Re: [PSES] UL508A vs UL61010-1 for control and monitoring equipment

UL 508A is intended to cover the control panel itself while 61010-1 applies to the "equipment" it is used in.That being said I have had NRTLs apply 508A to machinery "equipment" using such control panels (not separately listed) because they have to use "some" UL standard for an NRTL

Re: [PSES] Listing confusion

Doug, There is so much confusion and inaccuracy out there on this topic I could write a book on it. The majority of the OEM spec sheets I deal with do not have the compliance information clearly identified and mix up the difference between actual NRTL approvals and the standards. I can only

Re: [PSES] Listing confusion

Caveat Emptor I guess. From: John Woodgate [mailto:j...@woodjohn.uk] Sent: Friday, July 19, 2019 11:13 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Listing confusion Unfortunately, the DLC logos include the L-word: https://www.designlights.org/terms/logo-guidelines/ Best wishes John

Re: [PSES] Guidelines v Standards v Codes

· Light standard From: Richard Nute [mailto:ri...@bendbroadband.com] Sent: Thursday, June 27, 2019 4:13 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Guidelines v Standards v Codes Yes, there are several definitions for the word “standard,” e.g., * Banner; * Flagpole;

Re: [PSES] List of Machinery Harmonised Standards

Nick, Looks useful. -Dave From: Nick Williams [mailto:nick_willi...@conformance.co.uk] Sent: Tuesday, June 25, 2019 8:21 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] List of Machinery Harmonised Standards I suspect others were, like us, disappointed that back in March the European

Re: [PSES] Grounding

Steve, I don’t recall EN 60204-1 requiring a central earthing point, disallowing daisy chaining of the protective bonding circuit. My copy is with 2009 amendments. Is there a newer version with this requirement? NFPA 79 2015 is harmonized with EN 60204-1 and I don’t think there is such a

Re: [PSES] Tilt test

Frank, I’m sure it depends on the product and applicable standard, EN 60950-1 and EN 62368-1 both have stability requirements/tests. -Dave From: Frank Tang [mailto:0d3fa4ae712a-dmarc-requ...@ieee.org] Sent: Tuesday, June 11, 2019 4:18 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Tilt

Re: [PSES] Labeling material recognition to UL 969

:37 PM To: Nyffenegger, Dave Cc: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Labeling material recognition to UL 969 Hi Dave! Is your issue with the UL 969 requirement? Or being forced to list the label in your report's List of Critical Components? (Or both?) I have kind of the opposite

[PSES] Labeling material recognition to UL 969

Hi Folks, A few NRTLS are requiring labeling material to be recognized to UL 969 and be included in the critical component list. Anyone running into this? Anyone know the justification for doing this for product to be Listed to IEC based standards such as UL 60950-1 and UL 62368-1?

[PSES] CSA/UL 60950-1 4.7.2.2 Parts not requiring a fire enclosure

Hi folks, Well, more on the interesting topic of fire enclosures, CSA/UL 60950-1 has 4.7.2.2 Parts not requiring a fire enclosure The following do not require a FIRE ENCLOSURE: - motors; - transformers; - electromechanical components complying with 5.3.5 The question is since motors and

Re: [PSES] 62368-1 Openings in a fire enclosure

Bulkhead connectors protrude through fire enclosure openings both sides all the time. From: John Woodgate [mailto:j...@woodjohn.uk] Sent: Friday, May 17, 2019 2:24 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] 62368-1 Openings in a fire enclosure I would agree with you if it said

Re: [PSES] EMC and safety basics (process documentation)

Frank, Answer to many these questions depend on what market(s) you are selling into. Your test lab will provide you with their prerequisites needed for a given test/certification. These should be identified in their quotes. Generally minimum requirements for safety evaluation/certifications

Re: [PSES] FAO the Admins - Reinstatement of my blueyonder.co.uk email address, and related general issues!

I received the same message and I haven’t done anything about it yet and still receiving email. -Dave From: Gert Gremmen [mailto:g.grem...@cetest.nl] Sent: Wednesday, April 24, 2019 6:30 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] FAO the Admins - Reinstatement of my blueyonder.co.uk

Re: [PSES] Big Boot from List Server

I received the same systematic notification last night as everyone else and have not done anything with it. I am receiving email today but I don’t think my post from earlier this morning went through. So we’ll see if this reply goes through or not. -Dave From: Brian Kunde

Re: [PSES] Postal address on product labelling...

Been there, done that, heading for the wall. I have seen many products that seem to be commission/distributed by a US or European company but actually manufactured by a third party in China or such which does all the compliance certification. They don’t want to put the actual manufacturer

Re: [PSES] Mexico compliance approval for IT equipment

I've not heard of any way but they will accept some products with only US NRTL approval. -Dave From: Koester, Helmut [mailto:h.koes...@psi-laser.de] Sent: Wednesday, February 27, 2019 7:53 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Mexico compliance approval for IT equipment Hello group,

Re: [PSES] Rating & WEEE markings on lithium-ion rechargeable battery

I try my best to keep things out of the landfill☺ From: Richard Nute [mailto:ri...@ieee.org] Sent: Friday, February 22, 2019 5:46 PM To: Nyffenegger, Dave; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] Rating & WEEE markings on lithium-ion rechargeable battery Hi Dave: Yes. Coffee ma

Re: [PSES] Rating & WEEE markings on lithium-ion rechargeable battery

You mean I wasn’t supposed to replace the thermal cutout in my coffee maker (with identical part)? From: Richard Nute [mailto:ri...@ieee.org] Sent: Friday, February 22, 2019 3:22 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Rating & WEEE markings on lithium-ion rechargeable battery Hi

Re: [PSES] Intro to Safety

If you will be working on CE marked machinery then review the requirements for the technical file in the Machinery Directive. Also review requirements in the Low Voltage Directive whether machinery or not. -Dave From: Frank Tang [mailto:0d3fa4ae712a-dmarc-requ...@listserv.ieee.org] Sent:

Re: [PSES] New EU enforcement regulations touches on all? product regulations/directives.

"Retirement is not that far off. " It can never be too close either:) or not close enough:) Yuck Yuck. -Dave From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent: Thursday, February 14, 2019 3:29 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] New EU enforcement regulations touches

Re: [PSES] A question about FDA language and interlocking devices

That seems to make more sense. I don’t know anything about X-ray requirements but the FDA requirements laser interlocks are not specific, only referring to “interlocks”. -Dave From: MIKE SHERMAN [mailto:msherma...@comcast.net] Sent: Tuesday, February 05, 2019 12:27 PM To:

Re: [PSES] A question about FDA language and interlocking devices

EN ISO 14119 Safety of machinery - Interlocking devices associated with guards - Principles for design and selection has good information to refer to for safety interlocks. Compliance with this standard is required for machinery under the Machinery Directive for CE marking. While there may

Re: [PSES] Economical operator name & postal address on EEEproducts

Nice summary. From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent: Tuesday, February 05, 2019 10:46 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Economical operator name & postal address on EEEproducts Scott, Go to this link:

Re: [PSES] Brexit requirements for UK manufacturers.

...@woodjohn.uk] Sent: Friday, January 18, 2019 3:05 AM To: Nyffenegger, Dave; EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Brexit requirements for UK manufacturers. That puts the responsibility for compliance on the laboratory. It seems logical that the manufacturer should be responsible. Also, the lab

Re: [PSES] Brexit requirements for UK manufacturers.

And another answer, North America doesn’t recognize the CE mark, not only because of standards differences but they don’t trust manufacturer self-certification. They want certification by nationally recognized independent labs, for US OSHA recognized. -Dave From: Dennis Ward

Re: [PSES] MD clarification of the DoC

427 503/452-1201 IEEE Life Fellow p.perk...@ieee.org<mailto:p.perk...@ieee.org> From: Nyffenegger, Dave mailto:dave.nyffeneg...@bhemail.com>> Sent: Tuesday, December 18, 2018 11:16 AM To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] MD clarifi

Re: [PSES] MD clarification of the DoC

Regan, “So, a European must compile it but he can store it somewhere in i.e. Timbuktu. strange.” I don’t take ‘compile” too literally, they are looking for a contact in the EU, one that can be easily contacted who can provide a copy of the technical file on request. How the person

Re: [PSES] CE non-conformity statistics

Most of the end users of our machinery in the EU have or hire their own consultant to do conformity assessment (MD/LVD) of new purchases as part of the procurement and acceptance process. That sometimes gets interesting. -Dave From: Charlie Blackham [mailto:char...@sulisconsultants.com] Sent:

Re: [PSES] Does incorporated barcode scanner result in a new laser product?

has walked this road before, thanks in advance for thoughts and guidance, particularly if you think I've got it wrong. Regards, Lauren Crane Tokyo Electron From: Nyffenegger, Dave <mailto:dave.nyffeneg...@bhemail.com> Sent: Monday, October 08, 2018 12:08 PM To: TEH EHS Crane, Lauren &

Re: [PSES] Does incorporated barcode scanner result in a new laser product?

The annual report is pretty basic, just requires some basic production record keeping along with any documented product issues. The initial product report and any follow-up supplementary reports are a lot of work. -Dave From: Ted Eckert [mailto:07cf6ebeab9d-dmarc-requ...@ieee.org] Sent:

Re: [PSES] Does incorporated barcode scanner result in a new laser product?

Yes, I think it's an appropriate question for this forum. We've followed the CDRH requirements for our products containing class IV lasers. But now that you raise the question we've not followed the CDRH requirements for our products that contain only Class I and II lasers and after a quick

Re: [PSES] Equipment EMI Issue

The FCC required disclaimer requires no interference therefore presumably that means the operator can be required to stop using the interfering product regardless of its level of compliance. This device complies with Part 15 of the FCC Rules. Operation of this device is subject to the

Re: [PSES] EU Requirements for Sample Performance Assesment.

The EU requirements apply to product being placed into market. A product that's being strictly used for evaluation prior to being made available for sale should be exempt. There is probably some further advice on this in the Blue Guide. -Dave From: Grasso, Charles

Re: [PSES] Making 50 Hz power

I use a 160kVA 3-phase 208V frequency inverter with 50/60Hz output selection and ability to vary output voltage +-10%. Unfortunately it doesn’t do 230/240V so we have to use something else for smaller single phase loads when we need it. -Dave From: Doug Powell [mailto:doug...@gmail.com]

Re: [PSES] DoC - 3rd party device to be included?

Amund, I’d think (since your product conformance is only valid with specific adapter) your adapter must be included with your product when doing all the applicable testing to harmonized standards and in the technical file as a critical component and therefore would be inherently included in

Re: [PSES] CE marking - mixture of responsibilities

Not true in my experience. The same lab may do certification reports for EU declarations in addition to NRTL certification/report. The NRTL listing report is specific to US and/or Canadian standards. We put a 50Hz input rating on the nameplate but that’s never been included in the NRTL

Re: [PSES] hot laptop

No that you mention it I think I remember that story too. -Dave From: Doug Smith [mailto:d...@emcesd.com] Sent: Thursday, August 16, 2018 7:44 PM To: Nyffenegger, Dave; EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] hot laptop Hi Everyone, This "hot laptop" problem has been going o

Re: [PSES] hot laptop

We agree I need a new laptop due to this issue alone. It’s not hot enough that it can’t be moved away quickly enough to prevent a permanent burn. But it is hot enough to leave sun-burn like splotches on skin if left to long over a thin layer of clothing. Hot enough to discolor some other

Re: [PSES] hot laptop

it runs the CPU full out regardless of temp. -Dave From: Richard Nute [mailto:ri...@ieee.org] Sent: Thursday, August 16, 2018 2:42 PM To: Nyffenegger, Dave; EMC-PSTC@LISTSERV.IEEE.ORG Subject: hot laptop Get a new laptop. Intel devices now slow down if they get too hot. My new laptop barely gets

Re: [PSES] CB Certificate For Samsung Tablet - Need Contact

I’d like to ask the same question of my “name brand” laptop with the same circumstances. The CPU runs just under 100 degrees F according to Intel diagnostics and the case bottom runs hot enough it can’t actually sit on a lap. -Dave From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent:

Re: [PSES] hipot test

The NRTL I typically use always runs the hipot test for 60 seconds for type testing during product certification. The listing reports always specify a 1 second hipot for production line testing 100% of all units. Their claim is that the hipot can degrade some insulation and should be kept to

Re: [PSES] External toothed star washer used in earth connection

Also keep in mind the NSF standards generally prohibit the use of external tooth star washers in food zones in food certified products. -Dave From: Doug Powell [mailto:doug...@gmail.com] Sent: Wednesday, August 08, 2018 1:04 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] External toothed

Re: [PSES] ESD question

Wah??? You had to actually touch the TV to change the channel? From: John Woodgate [mailto:j...@woodjohn.uk] Sent: Wednesday, June 20, 2018 11:52 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] ESD question It's probably not ethnicity directly, but skin resistance. This varies greatly

Re: [PSES] UL Listing of Computer Keyboard

This is generally true however there are plenty of examples of products for sale as well as those used in the workplace that are simple in nature and/or non-hazardous and do not carry an NRTL mark. For example, the stapler on your desk or even the phone on your desk. If it plugs into a power

Re: [PSES] Customer Requests for Risk Assessments

This is a timely topic for me. Who are your "customers"? We partner with other various manufacturers, sometimes integrating other's machinery products in with ours or selling/servicing/refurbishing and providing heavy technical support for them as is. We sometimes ask for the manufacturers

Re: [PSES] EN50131-1 Battery spec vs. Environmental class

If power is available to charge the battery then the product could also employ a battery strip heater thermostatically controlled to bring the temp up to minimum. I have a low voltage low power strip heater on the battery in my listed outdoor gate opener controller. It happens to be a sealed

Re: [PSES] EU Harmonized RF Exposure Standards per RED for 13.56 MHz RFID

So it sounds similar to the MD with respect to the LVD requirements and you don’t declare to the LVD. From: John Woodgate [mailto:j...@woodjohn.uk] Sent: Wednesday, April 04, 2018 12:09 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] EU Harmonized RF Exposure Standards per RED for 13.56

Re: [PSES] [BULK] Re: [PSES] Need a switch

That's what I was thinking but I didn't dare say it. From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent: Wednesday, April 04, 2018 8:25 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] [BULK] Re: [PSES] Need a switch I'm picturing a huge knife switch from a Frankenstein movie I saw as

Re: [PSES] Neat Funny Stories regarding EMI

http://www.hottconsultants.com/techtips/maxemission.html From: Grasso, Charles [mailto:charles.gra...@dish.com] Sent: Friday, March 23, 2018 10:49 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Neat Funny Stories regarding EMI Hi all, I am writing a column internal to my company about the

Re: [PSES] IEC60950-1 Limited Power Source via IC current limiter

Yes new GFCIs are required to have built in automatic testing as most old ones installed are not getting the required periodic manual testing. From: MIKE [mailto:msherma...@comcast.net] Sent: Thursday, March 08, 2018 5:34 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] IEC60950-1 Limited

Re: [PSES] GFCI vs GFPE

Pete, think you are referring to Annex IV? -Dave From: Pete Perkins [mailto:peperkin...@cs.com] Sent: Thursday, February 01, 2018 1:42 PM To: Nyffenegger, Dave; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] GFCI vs GFPE Brian, et al, My quick reading of the MD (again) leads me

Re: [PSES] GFCI vs GFPE

, Brian [mailto:brian_ku...@lecotc.com] Sent: Thursday, February 01, 2018 1:27 PM To: Nyffenegger, Dave; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] GFCI vs GFPE Dave, I’ve never heard this position taken on the machinery directive before. So are you saying that anything “direct driven

Re: [PSES] GFCI vs GFPE

with a pulleys and belt driven blade. -Dave From: John Woodgate [mailto:j...@woodjohn.uk] Sent: Wednesday, January 31, 2018 5:23 PM To: Nyffenegger, Dave; EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] GFCI vs GFPE There is a motor and a blade, which both move and are linked. In a cut-off saw, If I

Re: [PSES] GFCI vs GFPE

I am surprised a basic cut-off saw would fit the definition of ‘machine’ for the MD since cut-off saws (the one’s I’m thinking of) are basically just a motor with a blade mounted directly to the armature and I don’t know that the blade is even considered part of the product. Not really an

Re: [PSES] Demo samples at stores

While you may not be required to meet 100% of requirements for CE mark for demo samples it’s still logical to have done a risk assessment and address any potential risks that might be applicable to demo samples under whatever supervision is applicable. For example immunity or RoHS

Re: [PSES] Pilot rating

Interesting. The test engineer at the NRTL (not UL) I always work with always says we (the lab and the client) must always apply sound engineering judgment when applying standards when something isn’t completely clear or straightforward in the standard. And this lab is always making sure

Re: [PSES] Safe powering 12V doorlock

Piotr, You don't have to be an expert in 60950-1 to interpret the TUV report. You only need to know which section of 60950-1 defines the requirements and tests for SELV and then see that those clauses are marked as passed in the TUV report or otherwise Not Applicable if the manufacturer does

Re: [PSES] Safe powering 12V doorlock

EN 60204-1 for machinery defines PELV for itself and does not even use SELV. -Dave -Original Message- From: John Woodgate [mailto:j...@woodjohn.uk] Sent: Thursday, November 23, 2017 2:00 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Safe powering 12V doorlock There is no

Re: [PSES] Safe powering 12V doorlock

In order for a power supply to meet SELV requirements it must pass all of the tests in the EN60950-1 standard for SELV which means component failure testing among other things, not simply isolation testing. Meanwell power supplies that I have researched have been SELV. Meanwell has been very

Re: [PSES] Regulatory requirements and internal use

If the device is used in the US workplace then OSHA rules would still apply which would require a NRTL certification if applicable and equivalent in Canada. Adding the radio may impact the existing NRTL certification of the device if there is one. If the radio/device is only low power/low

Re: [PSES] NEMA 5-20P with IEC 60320 C13

is ok. Thanks, The Other Brian -Original Message- From: Nyffenegger, Dave [mailto:dave.nyffeneg...@bhemail.com] Sent: Wednesday, October 11, 2017 1:30 PM To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] NEMA 5-20P with IEC 60320 C13

Re: [PSES] NEMA 5-20P with IEC 60320 C13

-Original Message- From: Pete Perkins [mailto:peperkin...@cs.com] Sent: Wednesday, October 11, 2017 1:39 PM To: Nyffenegger, Dave; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] NEMA 5-20P with IEC 60320 C13 Dave, The question is what was the rated current on the A/C unit? With the 15A

Re: [PSES] NEMA 5-20P with IEC 60320 C13

Had a condo with a smallish through-the-wall A/C unit with NEMA 5-15P plug. In the room on one side of the unit was a dedicated 20A single outlet for the A/C unit. In the room on the other side easily within reach of the cord was a standard duplex outlet on the room circuit. Guess which

Re: [PSES] NEMA 5-20P with IEC 60320 C13

The C13 to C20 is probably akin to using a NEMA 5-15P into a 20A branch circuit outlet where there is special allowance for this under NEC. The C14 to C19 seems a little more fishy. Perhaps for where the C20 inlet was standard in a product that was configurable and had a range of input

Re: [PSES] NEMA 5-20P with IEC 60320 C13

This looks like a strange one. I’d be verifying the actual UL certificate/listing on that stayonline cord.It’s not unusual to find a manufacturer rating that is broader that the NRTL rating. The NRTLs typically rate adapter cords for temporary non-continuous use but this appears to be a

Re: [PSES] 2011/65/EU and 2015/863/EU (RoHS Dir)

Published. http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32015L0863 From: Pete Perkins [mailto:0061f3f32d0c-dmarc-requ...@ieee.org] Sent: Thursday, September 28, 2017 1:57 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] 2011/65/EU and 2015/863/EU (RoHS Dir) Peter, et al,

Re: [PSES] 2011/65/EU and 2015/863/EU (RoHS Dir)

2015/863/EU is an incremental amendment to 2011/65/EU and is in full force. There is no need to revise

Re: [PSES] Looking for a UL rated screw connector

Have you considered using WAGO's LEVER-NUTS®? -Original Message- From: Jon Keeble [mailto:j...@wattwatchers.com.au] Sent: Monday, September 25, 2017 4:06 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] Looking for a UL rated screw connector I am looking for a UL rated fitting used to

Re: [PSES] Marking on Remote Controls

If the remote is an accessory to the primary product I’d think the certification labeling would be on the primary product and not needed on the accessory. -Dave From: Scott Douglas [mailto:sdouglas...@gmail.com] Sent: Thursday, September 21, 2017 6:25 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject:

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

I run into the marketing BS data sheet issue quite often. Glad to see I’m not the only one. It becomes clear that whomever is drafting the data sheets does not understand the compliance specifications. They will list standards in a section called Approvals or such for example a UL standard

Re: [PSES] power strip details

al Message- From: Richard Nute [mailto:ri...@ieee.org] Sent: Friday, September 15, 2017 6:34 PM To: Nyffenegger, Dave; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] power strip details Only codes have free access. Couldn't find the handbook in free access. Rich -Original Message

Re: [PSES] power strip details

Well I wouldn't say all electricity suppliers are good at it. In the Caribbean islands where the power grid consists of one power plant with a few generators and a handful of main distribution feeders the power quality is terrible with surges. Random short and long duration power outages are

Re: [PSES] power strip details

Free access http://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of-codes-and-standards/detail?code=70 -Original Message- From: Ralph McDiarmid [mailto:ralph.mcdiar...@schneider-electric.com] Sent: Friday, September 15, 2017 4:31 PM To: EMC-PSTC@LISTSERV.IEEE.ORG

Re: [PSES] power strip details

Yeah, I just bring my little dumb 1 to 3 adapter. Even that's not really needed because everything but the laptop is USB which can plug into the laptop with its umpteen USB ports. -Dave From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent: Friday, September 15, 2017 8:44 AM To:

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

d data, and may distort it (them?). From: Nyffenegger, Dave [mailto:dave.nyffeneg...@bhemail.com] Sent: 22 August 2017 18:03 To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Surge Suppression - Dos, and Don'ts I've not had any NRTL be concerned with protection of the surge protector. The surge pro

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

I've not had any NRTL be concerned with protection of the surge protector. The surge protector is typically protecting against product failure not fire or operator injury. The NRTL is not concerned with surge protector failure as long as it doesn't result in a hazardous condition. If the

Re: [PSES] Inrush Current

I think it also depends on what your EUT is. Machinery will typically be full of all sorts of loads, motors, transformers, power supplies, computers, inductive, capacitive, etc. The inrush would still be the peak current when the mains is switched on or also when the machine is started as

Re: [PSES] RED DoC and LVD

Similar situation exists with the Machinery Directive. The MD guideline says not to declare the LVD on the DoC but the directive requires meeting LVD technical requirements. There is no exclusion in the LVD for machinery either. I don’t think anyone argues that the directive that is more

Re: [PSES] RED DoC and LVD

This is also covered in the Guide to the Radio Equipment Directive 2014/53/EU http://ec.europa.eu/docsroom/documents/23321 -Dave -Original Message- From: Michael Derby [mailto:micha...@acbcert.com] Sent: Wednesday, August 02, 2017 10:10 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re:

Re: [PSES] Quasipeak definition

I think we still have an analog clamp-on ammeter in the lab. And some metric adjustable wrenches. -Original Message- From: Ralph McDiarmid [mailto:ralph.mcdiar...@schneider-electric.com] Sent: Tuesday, August 01, 2017 1:16 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES]

Re: [PSES] Quasipeak definition

Sounds like you'll need to measure with an old analog meter to go with it. -Dave From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent: Monday, July 31, 2017 3:40 PM To: Nyffenegger, Dave; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] Quasipeak definition I have a Classic 1948 John Deere &q

Re: [PSES] Quasipeak definition

Yeah, I have to fix the ignition in my '69 right now. Maybe I'll replace the condenser while I'm at it. -Dave From: Ghery S. Pettit [mailto:n6...@comcast.net] Sent: Monday, July 31, 2017 2:39 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Quasipeak definition True enough, but there are

Re: [PSES] Source for HF-1 Foam Air Filter?

I am interested in a similar source for HF-1 or better HF-2 to use for a foam roller something like 6in diameter x 8iin long. Closed cell probably preferred. -Dave From: Mike Sherman [mailto:msherma...@comcast.net] Sent: Friday, June 23, 2017 8:11 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject:

Re: [PSES] FCC part 18

Yes, I recall we have had this discussion before with the same answer. -Dave From: Bill Stumpf [mailto:bstu...@dlsemc.com] Sent: Wednesday, May 31, 2017 6:16 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] FCC part 18 Dieter, The statement in 15.103 refers to Industrial test equipment,

Re: [PSES] Hosedown test

Several NRTLs have labs in the EU, TUV and Intertek for example. Intertek is worldwide, I think UL is as well. The NRTL evaluation does not have to be done in the USA. From: Charlie Blackham [mailto:char...@sulisconsultants.com] Sent: Wednesday, May 03, 2017 7:06 AM To:

Re: [PSES] Interior lighting for large control panels

Also note that there are rules in the standards for maintenance lighting circuits which are not de-energized with the main disconnect switch. Again, the non-de-energized circuits are not required, but permitted. -Dave From: Douglas Nix [mailto:d...@mac.com] Sent: Tuesday, April 25, 2017 2:19

Re: [PSES] Voltage Rating vs Voltage Specification

If the mark is required to meet legislated efficiency requirements then it’s likely the customs inspectors will be looking for it on imports. -Dave From: Richard Nute [mailto:ri...@ieee.org] Sent: Wednesday, April 12, 2017 3:00 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Voltage

Re: [PSES] Voltage Rating vs Voltage Specification

That’s how I would have interpreted as well. Also, I don’t know that the / implies a selector switch as was mentioned earlier. I’ve seen power supplies rated for two non-contiguous ranges for input voltage that still auto-adjust for the actual input voltage, no selector switch required. Some

Re: [PSES] Voltage Rating vs Voltage Specification

Ha! Age old problem. Just have to explain it as you did. And also for the end product consumer nameplate I don’t put the +-10% rating on the plate. Had a major motor manufacturer recently trying to tell me that the motor they have rated for 230V was OK to run at 208V because it’s good for

Re: [PSES] E-Box Layout on Factory Machines

from the NRTL on what standards they would apply. In particular during a preliminary quote cycle with basic product description the standards to be used for certification will have been identified in the NRTL certification quotes. -Dave -Original Message- From: Nyffenegger, Dave Sent

Re: [PSES] E-Box Layout on Factory Machines

Brian, I assume you're asking about US requirements and the inspectors you are asking about are local AHJs or OSHA. So OSHA and perhaps the AHJs have a basic rule that all equipment used in the workplace is NRTL approved/listed except for custom built equipment that can be certified as safe

Re: [PSES] E-Box Layout on Factory Machines

UL 508A covers industrial control panels and has something to do with the consistency. Also, many manufacturers sub-out their control panel design and fabrication to assy shops that are approved to build panels to UL 508A so naturally the work done by these sub-contract shops is going to be

Re: [PSES] E-Box Layout on Factory Machines

UL 508A covers industrial control panels and has something to do with the consistency. Also, many manufacturers sub-out their control panel design and fabrication to assy shops that are approved to build panels to UL 508A so naturally the work done by these sub-contract shops is going to be

Re: [PSES] MD vs LVD for Laboratory Equipment

as a unit) Peter Tarver From: Nyffenegger, Dave Sent: Thursday, March 30, 2017 17:40 But there are products meeting that definition of machine that are covered by the LVD and specifically excluded from the MD: — household appliances intended for domestic use, — information technology eq

Re: [PSES] MD vs LVD for Laboratory Equipment

But there are products meeting that definition of machine that are covered by the LVD and specifically excluded from the MD: — household appliances intended for domestic use, — information technology equipment, — ordinary office machinery, -Dave From: Douglas Nix [mailto:d...@mac.com] Sent:

Re: [PSES] 3D Printed Parts

Standards should be evaluating the final part, not how it's made. It should not matter how it's made as long as future parts are made identical to the original that was evaluated. I've never had a lab question or show any interest in how a part was manufactured. They care that there is a

Re: [PSES] Motor Overload Protection with Supplemental Protector

1. I believe NEC requires all 120V 15A branch circuits with 5015 receptacles to be branch circuit protected so the UL 1077 breaker should be fine. Outside of NEC may be another matter. 2/3. If Inverter, Frequency Drive, PWM Motor Controller provides overload protection (they usually do)

Re: [PSES] immunity related function or convenience feature?

The US NHTSA has mandated all new vehicles under 10,000 pounds to include a backup camera by May 2018 as part of required safety equipment. Therefore I would also say that the backup cameras (at least factory installed) would be immunity-related equipment, not convenience. Now I'm waiting for

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