Re: EN 61000-6-2:2001 vs EN 61000-6-2:1999

The major change is : In the 1999 version, "In some non-European countries, the transition frequency between conducted and radiated radio-frequency test is optional within the range 26 MHZ and 80 MHZ. In these countries, the test may be carried out at a start frequency lower than 80 MHZ, but not

Re: EN60950 protective conductor test (was Re: Circuit Breaker Tripping Dring Fault Tests)

Dear Friends, Thanks very much to the input regarding CB Tripping During Fault Testing. There were many thoughts on the subject and I am sure that next time the wall CB trips during fault tests at your third part certification laboratory, you have something to talk about - make sure they do not ch

RE: EN 55022:1998 plus A1:2000

Cortland, Amendment 1 to CISPR 22:1997 requires the clamps on all cables leaving the measurement area. This includes power cords. The cables are specified to enter the clamp at the point where the cable reaches the surface of the turntable. I don't believe that your suggestion meets this requi

RE: Plenum Ratings

David - Yes, the wiring either must be plenum rated or must be completely enclosed in an approved wiring method. If pigtails are provided, installation instructions or markings should give some advice about properly installing the equipment. Background: The requirements in the US are found in

Re: Ethernet Creepage and Clearance

I read in !emc-pstc that neve...@attbi.com wrote (in <200302061923.h16JN 5k29...@orion2.ieee.org>) about 'Ethernet Creepage and Clearance' on Thu, 6 Feb 2003: >There shall be no insulation breakdown, as defined in Section 5.3.2 of IEC >60950, 1991, That's OLD! -- Regards, John Woodgate, OOO -

Re: Maintaining conductivity of freshly machined aluminum

I read in !emc-pstc that Barker, Neil wrote (in <4f826f960057d4118ec3009027e2453808a52...@whl17.e2v.uk>) about 'Maintaining conductivity of freshly machined aluminum' on Thu, 6 Feb 2003: >Aluminium oxidises extremely rapidly in normal atmospheric conditions. Indeed. See what happens when mercury

RE: EN60950-1 - Time Scale??

Peter, To answer your question directly, I would say that it is the choice of the manufacture, based on their market (international or just European) and product lifetime to make their decisions. For instance, the OJEC in relation to the LVD states that the third amendment to EN 60950 has

Re: EN 55022:1998 plus A1:2000

Tim Pierce wrote: >> The new amendment calls out for ferrite tubes on all power cables and I/O cables exiting the test site. The problem I'm finding is that the FCC will not accept this test setup. Does anyone know if the FCC is going to approve this test setup? << What of buried cables? It

CE marking and additional information requirements

Greetings All, Thank-you to everyone who responded to my queries. Richard == Richard Georgerian Compliance Engineer Carrier Access Corporation 5395 Pearl Parkway Boulder, CO 80301 USA Tele: 303-218-5748 Fax: 303-218-5503 mailto:rgeorger...@carrier

RE: User manual CD web or paper

I do see a few issues using CDROM's for safety information. The tradition operations manual that can include uncrating and handling will be lost - and so will our ability to protect the user. Finding an equipment manual is never easy in a business but there is usually a picture to help us match

RE: EN 55022:1998 plus A1:2000

Tim, Officially, the DoW is still 1 August 2003. However, a number of alphabet groups have written letters to the commission asking that EN 55022:1998 be delayed again as the telecommunication port conducted emissions test problems won't be fixed in time. That will have the effect of delaying t

Re: EN 55022:1998 plus A1:2000

In a message dated 2/6/2003 4:10:16 PM Central Standard Time, emcp...@aol.com writes: Also, does anyone recommend where to buy these ferrite tubes? Hi Tim, Schaffner makes these. Call John Parnell on 1-800-367-5566 He's on Ext 225 ( I think ) I'm sure there are others... Cheers, Derek Wa

EN 55022:1998 plus A1:2000

Does anyone know what is going on with the final word on EN 55022:1998 plus A1:2000? Is it still going into effect in August 2003? The new amendment calls out for ferrite tubes on all power cables and I/O cables exiting the test site. The problem I'm finding is that the FCC will not accept this

RE: Agilent 6842A

Agilent is not supporting anything after EN 61000-3-2:1995, plus A1:1998, plus A14:2000. Also they are not supporting anything after EN 61000-3-3:1995 for the Agilent 6842A. Thanks. Tim Pierce Tim, which amendments or revisions of the test equipment standards or product test standards do you

Plenum Ratings

Hello Group, I was wondering if anyone out there had any knowledge in Plenum ratings/requirements. Here's my situation: We have a box that has a plenum rating (that's all I know) and it has an 18 inch 3 wire pigtail coming out of it that does not have a plenum rating. Are there any specific requ

Re: HP 6034L Power supply schematics / repair

Thank you to everyone who supplied information on how to get this unit repaired. Kurt -- Kurt M. Marden Environmental Simulation Manager Curtis-Straus LLCkmar...@curtis-straus.com Laboratory for EMC,Safety Environmental Simulation Lab NEBS,SEMI-S2 and Telecom

RE: Ethernet Creepage and Clearance

The isolation is handled by: a) transformer AND b) clearance/dielectric between "ground" and the nets that connect between the connector and the transformer. On the practical side, 5 mil of FR4 is enough to provide isolation in inner layers, and min of about 50-75 mil on the ouoter layers.

RE: What happens when an RTTE non compliant product is placed on the market?

There are three Directives at play here, LVD, EMCD, and RTTED. Market survalence authorities under the LVD: http://europa.eu.int/comm/enterprise/electr_equipment/lv/index.htm Under the EMCD: Not listed on the commission's web site, but check out the guidelines. http://europa.eu.int/comm/enterpri

Re: What happens when an RTTE non compliant product is placed on the market?

For non-radio equipment, the only requirements deemed essential are the safety and EMC requirements. There are no mandatory telecom requirements in the EEA. John Radomski Schneider Electric

Re: Ethernet Creepage and Clearance

Per high-voltage isolation requirement of IEEE 802.3, 2000, Ethernet front-end (media-side) must meet at least (any) one of the following three tests: a) 1500 V rms at 50 Hz to 60 Hz for 60 s, applied as specified in Section 5.3.2 of IEC 60950, 1991 b) 2250 Vdc for 60 s, applied as specified

Re: EN60950 protective conductor test (was Re: Circuit Breaker Tripping Dring Fault Tests)

Hi Peter: My comments were based on the proposed requirement to test the PE path with the circuit prospective current transient, e.g. 200 amps from a 10,000-amp source for the period of time required to operate the overcurrent device -- say less than a second or so. (The 200 amps is a fun

What happens when an RTTE non compliant product is placed on the market?

Hi All Does anyone know the format and the status of the surveillance bodies which were supposed to be places by the member states and by the EU for enforcement of the RTTE directive. What happens when an RTTE non compliant product is placed on the market? Does anyone care? (For example an RTT

RE: UL508 and UL60950

A lot depends on whether the device is UL Listed or UL Recognized and if the end product standard to be complied with is UL 508 (Industrial Control Equipment) or UL 508A (Industrial Control Panels; standard used in UL's Industrial Control Panel Program). I will speak of my experience with UL 508A

RE: Ethernet Creepage and Clearance

Not for safety, sorry the 802 reference was from the IEEE 802.3 Ethernet standards. I forget which section but there is a section on the electrical characteristics for the port and the wiring. Unless its been changed there is 1500 v isolation requirement between signals and chassis. Quit

EN60950-1 - Time Scale??

Group, EN60950-1 appears in the OJ and there is a CB TRF issued by Fimko to this standard. Is it wise to obtain a CB Test Report and Certificate to this standard when most countries, including the US and Canada, have not adopted their versions of the standard? What is going on around the world

Re: Ethernet Creepage and Clearance

I read in !emc-pstc that Alex McNeil wrote (in <5685ADDE2285D511925200508BB9F5031EC33B@FORT2>) about 'Ethernet Creepage and Clearance' on Thu, 6 Feb 2003: >Are there any ethernet and PCB safety requirements, ie are there rules like >those for the modem side of things (isolation in particular) or

RE: User manual CD web or paper

Andre, Mostly I was just polling them at the time. The pain level for us to put in just the double sided installation guide was so small that it simply didn't warrant trying to go to the mat with them over it. There are other issues that I have argued, CSA certification of Class 1

RE: mouse heart monitor

To my reading the MDD applies only to human patients. Irrespective of the applicable Directive, you need to consider the suitabilty of the Standrd you choose to adopt. In this case 60601 must be more appropriate than 61010 - not least because safety provisions in the latter make no allowance f

RE: mouse heart monitor

Chris Maxwell wrote: >> There may be some "administrative" (follow on testing, factory auditing...) aspects of EN 60601 which may have costs that are hard to justify for a mouse tester. << Some years ago a NEMKO engineer recounted (while witnessing a test at my then employer) having tested a f

RE: Feb 11 / Petition for Formation of a Product Safety Society

As we are having an issue with the new server (https://www.ieeecommunities.org/emc-pstc), please use the file's on our normal web site given below. On the new server it should have been visible under the "List" and in the folder General. I will look into the issue with the new server. From: Rom

Re: CE marking and additional information requirements

I read in !emc-pstc that Barker, Neil wrote (in <4f826f960057d4118ec3009027e2453808a52...@whl17.e2v.uk>) about 'CE marking and additional information requirements' on Thu, 6 Feb 2003: >I quite agree that unmarked product cannot be in free circulation. >I wasn't implying that it was or even could

EN 61000-6-2:2001 vs EN 61000-6-2:1999

Hi again! Are there any major changes between EN 61000-6-2:2001 vs EN 61000-6-2:1999 which has a Date of cessation of 01.07.2004. I am in the process of ordering it but am too impatient to wait on the delivery :-) Best regards, Terry J. Meck Senior Compliance Engineer tjm...@accusort.com

RE: Ethernet Creepage and Clearance

Unless of course it self limits the current etc when max power is measured, or not provided. Gary From: david_ster...@ademco.com [mailto:david_ster...@ademco.com] Sent: Thursday, February 06, 2003 5:43 AM To: alex.mcn...@ingenicofortronic.com; emc-p...@majordomo.ieee.org Subject

(Fwd) mouse heart monitor

>>>Going through 60601 would help to show that the device won't harm or disturb the mouse, which may be important to the user. After all, the user would want to know that the mouse's heart rate was going up because he saw a female mouse or a piece of cheese...not because the heart rate monitor

RE: mouse heart monitor

In IEC/EN60601 the definition of PATIENT reads: "Living being (person or animal) undergoing medical investigation or treatment". So I would say, that IEC/EN60601 is the correct standard. John Radomski Schneider Electric

RE: Ethernet Creepage and Clearance

Ethernet is an SELV signal circuit. Fully IEEE 802.3 compliant products will not require any special treatment. Just the usual materials requirements regarding flammability. If this is a powered VOIP product, there may be some additional things to consider. Please be certain to purchase a copy

RE: User manual CD web or paper

I read in !emc-pstc that Andre Boons wrote (in ) about 'User manual CD web or paper' on Thu, 6 Feb 2003: > In real >life, almost nobody, except some weird safety freaks, read manuals. Well, in real life not a lot of folks seem to read the warnings on cigarette packages either. That doesn't m

Re: UL508 and UL60950

Pierre, The compliance with UL 60950 will not be a problem. My company was one of the first to enter the industrial HMI and industrial computer markets. We dropped UL 508 (auxiliary devices) in favor of UL 1950 (and now of course UL 60950) in 1995. We have thousands of industrial computers

RE: MRA US-EU: Sectoral Annex Safety suspended

Alan, You can find the text of the MRA (in plain English) on the following site> Somewhere in the middle of the document, you find your answer under the heading SECTORAL ANNEX FOR ELECTRICAL SAFETY, only a few lines. http://www.europa.eu.int/smartapi/cgi/sga_doc?smartapi!celexapi!prod!CELEXnu m

RE: EN60950 protective conductor test

Sir Based on *anecdotal* experience, use of PWB trace for P.E. is common only in SMPSs that have no chassis or surrounding frame. For example, my employer, mostly for the reasons published in this thread, does not use a PWB-only P.E on any (AC/DC converter) SMPS. While my employer offers some fra

Agilent 6842A Technical Question

Is anyone aware of any amendments or revisions of the relevant test equipment standards or product test standards that are not supported by the Agilent 6842A? We are currently trying to evaluate dmax during power up (inrush current) per Annex B of EN 61000-3-3 + A1 and having some difficulty. Has

RE: mouse heart monitor

Hi, I vote for LVD and IEC 61010-1. The definition of a medical device in the MDD and IVD includes "... intended by the manufacturer to be used for human beings for the purpose of..." So, the MDD and IVD don't apply. In IEC 60601-1, the definition of Patient (Clause 2.12.4) does include anim

[Fwd: Feb 11 / Pettion for Formation of a Product Safety Society within IEEE]

This is a multi-part message in MIME format. Don, Elwood, Art, et al, If you are an IEEE member, please look at this petition to create a Product Safety Society within the IEEE. I attended the TC-8 meeting at the IEEE EMC Symposium last August, where this was discussed. I thought that having such

RE: Ethernet Creepage and Clearance

The only safty reg I know of pertains to the 15-pin DB-mini connector for the 'AUI' interface: Safety agencies require a fuse (or current-limiting) on AUI Pin 13 which sources 12 volts. Otherwise they consider the AUI 'hazardous', requiring all sorts of stickers and warnings. ANSI/IEEE 802.3 s

RE: mouse heart monitor

I second this opinion for a different reason. EN 61010-1 doesn't have any tests that pertain to electrical connections that are intentionally connected to a living thing, be it animal or human. Going through 60601 would help to show that the device won't harm or disturb the mouse, which may be i

Feb 11 / Pettion for Formation of a Product Safety Society within IEEE

Next week, several key players in the field of product safety will be attending the IEEE board series meeting. At this meeting, the President of the IEEE, the Board of Directors, and every department and organization within IEEE will be present. The unit identified as the Technical Activities Boar

RE: MRA US-EU: Sectoral Annex Safety suspended

Carpentier Kristiaan wrote: > This seems to be the end of the Sectoral Annex Electrical Safety. > > H'ixcuse ma h'igorance, but what *was* this mutual recognition agreement on electrical safety about anyway (in plain

RE: Maintaining conductivity of freshly machined aluminum

Alocrom 1200 is a CHROMATE CONVERSION COATING system for Aluminium and aluminium alloys. We use a proprietary coating system which deposits a chromate coating onto an etched surface. Chromate coating is recommended for use prior to painting, but because of its ability to prevent atmospheric ox

Re: User manual CD web or paper

I read in !emc-pstc that Andre Boons wrote (in ) about 'User manual CD web or paper' on Thu, 6 Feb 2003: > In real >life, almost nobody, except some weird safety freaks, read manuals. Well, that characterizes about half of the members of this group. Of course, they are not weird safety freaks b

Re: Maintaining conductivity of freshly machined aluminum

I read in !emc-pstc that Scott Lacey wrote (in <3E4144F6.3539.FA6BC@localhost>) about 'Maintaining conductivity of freshly machined aluminum' on Wed, 5 Feb 2003: >Does anyone know of any conductive coating, preferably spray-on, >that could be used on mating aluminum chassis surfaces? We >manuf

Re: mouse heart monitor

I read in !emc-pstc that Sam Davis wrote (in ) about 'mouse heart monitor' on Wed, 5 Feb 2003: >I'm trying to work up a quote for testing a product which monitors various >heart functions of living laboratory mice. Would this fall into the Medical >Directive under 60601, or the LVD, under 61010?

Ethernet Creepage and Clearance

Hi Forum, Are there any ethernet and PCB safety requirements, ie are there rules like those for the modem side of things (isolation in particular) or is the transformer sufficient? Kind Regards Alex McNeil Principal Engineer Tel: +44 (0)131 479 8375 Fax:+44 (0)131 479 8321 email: alex.mcn...@inge

(Fwd) mouse heart monitor

Sam, A review of the MDD scope shows that if it is not to be used on humans, then the MDD is not the appropriate directive. So the LVD would be the applicable directive. Nevertheless, I would say the the most appropriate standard to use is EN 60601-1, even though it is not an LVD harmonised st