Re: Re EU Language
Dear all, FYI to interested parties, Further on Chinese characters. China is using simplifed Chinese characters, where Taiwan and Hong Kong use the traditional Chinese characters. The grammer is the same, only the way of writing is different. Paul Chan From: Spicer, Keith keith.spi...@uk.thalesgroup.com To: emc-p...@majordomo.ieee.org Sent: Monday, June 30, 2003 6:47 PM Subject: Re EU Language We have discovered that products for China must be in Chinese except for Hong Kong as follows: GB/T 18287 (Chinese Government Sped pertaining to Li-Ion batteries for telecommunication devices) is not enforced for products to be sold in Hong Kong. Hong Kong is classed as a Special Administrative Region and does not fall under the requirements of this spec for Warning notes to be printed in the Chinese language. I have also been informed of the following It is known for a label to meet world-wide sale requirements it requires at least 6 languages (some are accepted standards others are Gov't specific), these are: English French (Gov't requirement of France and Canada. Quebec has additional requirement that French must be the principal language on the label) Spanish Portuguese (Gov't requirement of Brazil) Simplified Chinese Chinese (Gov't requirement of China) Is there a known site that details these requirements? Regards Keith Spicer -Original Message- From: Stephen Irving [mailto:sirv...@lutron.com] Sent: 05 May 2003 14:55 To: emc-p...@majordomo.ieee.org; gera...@zoom.com Cc: Bob Spehalski Subject: RE: EU Language requirements for Manuals I am involved in a similar language project. Like Gerald, I am finding that these rules come from governmental legislation (not just from project standards or EU directives). Legislation is often more difficult to track down than standards, and I believe it would be useful to most people on this list if we were to begin to establish a list of known requirements. Is anyone aware of similar language requirements elsewhere in the world? In the Canadian Provence of Quebec, just about all product literature is required to be in French. This requirement comes from the Charter of the French Language, and is available online at http://www.oqlf.gouv.qc.ca/english/charter/title1chapter7.html. Best regards, Steve Gerald Tammi gera...@zoom.com 5/1/2003 9:51:33 AM I have just gone through a major project as it applies to language. The EU directives only require that the manuals (user and service) and the DoC be in an official language of the EU (13 possibilities). However it gives the local countries the authority to impose additional if not contradictive regulations. As a compromise, there is an informal brief DoC in thirteen languages that can be inserted in the manual that will cover most circumstances. In the case of Spain, they require that the user and service manuals be printed in the official language of Spain (Castilian). The also require that there be an official full signed printed DoC in Castilian be in the manual. If not the manufacture or importer of the product can be fined. This requirement is not in any EU document, but is buried in the rules and regulations under royal decree (be prepare it is available only in Spanish). I had to read a total of about 1200 pages of Spanish law to find the regulations I have not yet come up with any other country regulations regarding specific language requirements Keith Spicer --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at:
IEC65 7th edition, creepage clearance
Hello All I'm still groping my way around the 7th edition of IEC65 (EN60065:2002) and would appreciate a little help with creepage and clearances. A designer wants to place a ground plane above a mains track on a pcb, contained within a 230V rated domestic type product. As far as I can tell, 1) The minimum thickness of the pcb material between the ground plane and track should be 0.4mm, the insulation resistance between the two be 4Mohm and the dielectric strength test be 3kV(rms). (Clause 8.8) 2) Using tables 8 9, the minimum clearance between the ground and mains track should be a minimum of 4.0mm (if no quality control program is utilised). (Clause 13.2.2) 3) The minimum creepage is the same as the clearance value (Clause 13.4) Any comments would be much appreciated. Regards Chris Colgan Compliance Engineer TAG McLaren Audio Ltd The Summit, Latham Road Huntingdon, Cambs, PE29 6ZU *Tel: +44 (0)1480 415 627 *Fax: +44 (0)1480 52159 * Mailto:chris.col...@tagmclaren.com * http://www.tagmclaren.com ** Please visit us at www.tagmclaren.com ** The contents of this E-mail are confidential and for the exclusive use of the intended recipient. If you receive this E-mail in error, please delete it from your system immediately and notify us either by E-mail, telephone or fax. You should not copy, forward or otherwise disclose the content of the E-mail. Important Note: Any typographical, clerical or other error in this communication is subject to correction without any liability on the part of TAG McLaren Audio Limited. Any orders placed shall be subject to acceptance by TAG McLaren Audio Limited on its standard terms and conditions of sale which shall govern the contract for the sale and purchase of the products ordered to the exclusion of any other terms and conditions. TAG McLaren Audio Ltd The Summit, 11 Latham Road Huntingdon, Cambs, PE29 6ZU Telephone : 01480 415600 (+44 1480 415600) Facsimile : 01480 52159 (+44 1480 52159) ** Please visit us at www.tagmclaren.com ** This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
IEC65 7th edition, creepage clearance
Hello All I'm still groping my way around the 7th edition of IEC65 (EN60065:2002) and would appreciate a little help with creepage and clearances. A designer wants to place a ground plane above a mains track on a pcb, contained within a 230V rated domestic type product. As far as I can tell, 1) The minimum thickness of the pcb material between the ground plane and track should be 0.4mm, the insulation resistance between the two be 4Mohm and the dielectric strength test be 3kV(rms). (Clause 8.8) 2) Using tables 8 9, the minimum clearance between the ground and mains track should be a minimum of 4.0mm (if no quality control program is utilised). (Clause 13.2.2) 3) The minimum creepage is the same as the clearance value (Clause 13.4) Any comments would be much appreciated. Regards Chris Colgan Compliance Engineer TAG McLaren Audio Ltd The Summit, Latham Road Huntingdon, Cambs, PE29 6ZU *Tel: +44 (0)1480 415 627 *Fax: +44 (0)1480 52159 * Mailto:chris.col...@tagmclaren.com * http://www.tagmclaren.com ** Please visit us at www.tagmclaren.com ** The contents of this E-mail are confidential and for the exclusive use of the intended recipient. If you receive this E-mail in error, please delete it from your system immediately and notify us either by E-mail, telephone or fax. You should not copy, forward or otherwise disclose the content of the E-mail. Important Note: Any typographical, clerical or other error in this communication is subject to correction without any liability on the part of TAG McLaren Audio Limited. Any orders placed shall be subject to acceptance by TAG McLaren Audio Limited on its standard terms and conditions of sale which shall govern the contract for the sale and purchase of the products ordered to the exclusion of any other terms and conditions. TAG McLaren Audio Ltd The Summit, 11 Latham Road Huntingdon, Cambs, PE29 6ZU Telephone : 01480 415600 (+44 1480 415600) Facsimile : 01480 52159 (+44 1480 52159) ** Please visit us at www.tagmclaren.com ** This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: RTTE requirements
This is a multi-part message in MIME format. Bill, An ADSL modem is telecom terminal equipment and must comply with the RTTE Directive. Harmonised standards to comply with: Art 3.1a) Safety and health: EN60950(-1) Art 3.1b) EMC: EN55022, EN55024, EN61000-3-2, EN61000-3-3 Art 3.2 Radio: only applicable if your modem has a radio interface. For the valid versions of the harmonised standards, take a look at: http://europa.eu.int/comm/enterprise/newapproach/standardization/harmstds/re flist/radiotte.html Vriendelijke Groeten, Best regards, Meilleures salutations, Kristiaan Carpentier Regulatory and Approval Engineer Thomson Prins Boudewijnlaan 47, B-2650 Edegem, Belgium Tel: +32 3 443 6407 - Fax: +32 3 443 6632 e-mail: kristiaan.carpent...@thomson.net www.speedtouch.com From: Bill Stumpf [mailto:bstu...@dlsemc.com] Sent: dinsdag 1 juli 2003 20:38 To: emc-p...@majordomo.ieee.org Subject: RTTE requirements To all, A manufacturer of an ADSL modem/router needs to meet both the EMC and RTTE Directives. What standards are applicable to the device under the RTTE Directive as telecommunications terminal equipment? Thanks in advance, Bill This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Title: RE: RTTE requirements Bill, An ADSL modem is telecom terminal equipment and must comply with the RTTE Directive. Harmonised standards to comply with: Art 3.1a) Safety and health: EN60950(-1) Art 3.1b) EMC: EN55022, EN55024, EN61000-3-2, EN61000-3-3 Art 3.2 Radio: only applicable if your modem has a radio interface. For the valid versions of the harmonised standards, take a look at: http://europa.eu.int/comm/enterprise/newapproach/standardization/harmstds/re flist/radiotte.html Vriendelijke Groeten, Best regards, Meilleures salutations, Kristiaan Carpentier Regulatory and Approval Engineer Thomson Prins Boudewijnlaan 47, B-2650 Edegem, Belgium Tel: +32 3 443 6407 - Fax: +32 3 443 6632 e-mail: kristiaan.carpent...@thomson.net www.speedtouch.com -Original Message- From: Bill Stumpf [mailto:bstu...@dlsemc.com] Sent: dinsdag 1 juli 2003 20:38 To: emc-p...@majordomo.ieee.org Subject: RTTE requirements To all, A manufacturer of an ADSL modem/router needs to meet both the EMC and RTTE Directives. What standards are applicable to the device under the RTTE Directive as telecommunications terminal equipment? Thanks in advance, Bill --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc attachment: Carpentier_Kristiaan.vcf
CISPR Receiver/SA
If you were purchasing a brand new, fully CISPR compliant EMC receiver/SA, and wanted to obtain the best value at the lowest cost, what would you choose and why? Likewise, if you decided to purchase a used receiver/SA, what would you choose and why? Richard Woods Sensormatic Electronics Tyco International This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: RTTE Directive Member States Notification
Richard Woods wrote: Gerald, please explain why a Notified Body number
is required? I thought that a harmonized ETSI standard exists.
A Notified Body number is not required unless a Notified Body (NB or
CAB) is consulted for the job. Since there are Harmonized standards that
can be used for this type of product, a NB/CAB is not required. The
manufacturer is responsible for compliance with the Essential
Requirements of the Directives, therefore they are responsible for
notifying the different Member States of the EU of their intent to
market the device in their country.
William M Stumpf
DLS Electronics
166 South Carter St.
Genoa City WI 53128
ph: 262-279-0210
fx: 262-279-3630
email: bstu...@dlsemc.com
EU CAB for EMC and RTTE
From: richwo...@tycoint.com [mailto:richwo...@tycoint.com]
Sent: Tuesday, July 01, 2003 1:32 PM
To: emc-p...@majordomo.ieee.org
Subject: RE: RTTE Directive Member States Notification
Gerald, please explain why a Notified Body number is required? I thought
that a harmonized ETSI standard exists.
Richard Woods
Sensormatic Electronics
Tyco International
From: Gerald Tammi [mailto:gera...@zoom.com]
Sent: Tuesday, July 01, 2003 12:52 PM
To: 'Jan Heffken'; emc-p...@majordomo.ieee.org
Subject: RE: RTTE Directive Member States Notification
I have gone through the process of a 802.11 WLAN.
France is not harmonized to the rest on the EU in the 2.4Ghz spread
spectrum.
Yes you will need a NOTIFIED BODY number to submit with the country
notifications
Yes you need to send notification to each country that you want to sell
into.
There is a 30 day waiting period for each country to reply before you
can
sell into that market. {they may respond sooner that the 30 days} They
may
reject especially if there is an external antenna.
If you are shipping out of the United States, and the product has an
embedded encryption engine; you need to file for an export license with
the
US BXA. Also you need to comply with control of export to the T7
terrorist
countries ban.
Gerald Tammi
Zoom Telephonics.
Boston, MA
From: Jan Heffken [mailto:jheff...@core.com]
Sent: Tuesday, July 01, 2003 10:04 AM
To: emc-p...@majordomo.ieee.org
Subject: RTTE Directive Member States Notification
I am a little confused about paragraph 31 of the RTTE Directive. I
have copied it below. My understanding is that if our equipment (2.4GHz
outdoor WLAN) operates in a non-harmonised frequency band, then we have
to Notify Member States where it is not harmonised.
Where can I find answers to the following questions.
Is the 2,4GHz. spread spectum band harmonized through the EU?
Which Member States have not harmonized?
Do I have to go through a Notified Body to Notify?
Since paragraph 31 uses should and not shall do I have to do it all?
Paragraph 31 from the RTTE Directive.
(31) Whereas manufacturers should notify Member States
of their intention to place radio equipment on the
market using frequency bands whose use is not
harmonised throughout the Community; whereas
Member States therefore need to put in place procedures
for such notification; whereas such procedures
should be proportionate and should not constitute a
conformity assessment procedure additional to those
provided for in Annexes IV or V; whereas it is desirable
that those notification procedures should be
harmonised and preferably implemented by electronic
means and one-stop-shopping;
Thanks in advance,
Jan Heffken
--
CoreComm Webmail.
http://home.core.com
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Archive is being moved, we will announce when it is back on-line.
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This message is from the IEEE EMC Society Product Safety
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This message is from the
RE: RTTE Directive Member States Notification
My company has notified many products to all of the EU and EFTA member
countries based upon using a harmonized standard and a non-harmonized band
and we have never needed to add a Notified Body number to the form. Indeed,
in the beginning when we left that part blank, some countries asked for the
information. Then we got smart and indicated on the form that the number was
not required because we applied a harmonized standard. After that, we had no
problems.
Regards,
Richard Woods
Sensormatic Electronics
Tyco International
From: alain.sam...@gigabyte.com.tw [mailto:alain.sam...@gigabyte.com.tw]
Sent: Tuesday, July 01, 2003 9:51 PM
To: jheff...@core.com; emc-p...@majordomo.ieee.org
Subject: RE: RTTE Directive Member States Notification
Even though individual country forms do not explicitly suggest the if
applicable condition, just take the initiative to put not considered or
not considered - the product is conformed to harmonized standards in place
of the number of the NB.
I guess many of us tried it, and it worked.
Alain
Giga-Byte
From: Gerald Tammi [mailto:gera...@zoom.com]
Sent: Wednesday, July 02, 2003 4:35 AM
To: 'richwo...@tycoint.com'; emc-p...@majordomo.ieee.org
Subject: RE: RTTE Directive Member States Notification
The 2.4 Ghz frequency spectrum is NOT harmonized. France is one of the
countries that has a restricted band allocation
It may not be true per the a directive, however if you download the required
individual notification forms by country; you will see that there is an
entry required for the notified body name and number. The general form in
the EU catalog says if applicable. the individual country forms are
similar but customized to that country. Many of the forms are in the
language of the country only, with no English version.
From: richwo...@tycoint.com [mailto:richwo...@tycoint.com]
Sent: Tuesday, July 01, 2003 2:32 PM
To: emc-p...@majordomo.ieee.org
Subject: RE: RTTE Directive Member States Notification
Gerald, please explain why a Notified Body number is required? I thought
that a harmonized ETSI standard exists.
Richard Woods
Sensormatic Electronics
Tyco International
From: Gerald Tammi [mailto:gera...@zoom.com]
Sent: Tuesday, July 01, 2003 12:52 PM
To: 'Jan Heffken'; emc-p...@majordomo.ieee.org
Subject: RE: RTTE Directive Member States Notification
I have gone through the process of a 802.11 WLAN.
France is not harmonized to the rest on the EU in the 2.4Ghz spread
spectrum.
Yes you will need a NOTIFIED BODY number to submit with the country
notifications
Yes you need to send notification to each country that you want to sell
into.
There is a 30 day waiting period for each country to reply before you can
sell into that market. {they may respond sooner that the 30 days} They may
reject especially if there is an external antenna.
If you are shipping out of the United States, and the product has an
embedded encryption engine; you need to file for an export license with the
US BXA. Also you need to comply with control of export to the T7 terrorist
countries ban.
Gerald Tammi
Zoom Telephonics.
Boston, MA
From: Jan Heffken [mailto:jheff...@core.com]
Sent: Tuesday, July 01, 2003 10:04 AM
To: emc-p...@majordomo.ieee.org
Subject: RTTE Directive Member States Notification
I am a little confused about paragraph 31 of the RTTE Directive. I
have copied it below. My understanding is that if our equipment (2.4GHz
outdoor WLAN) operates in a non-harmonised frequency band, then we have
to Notify Member States where it is not harmonised.
Where can I find answers to the following questions.
Is the 2,4GHz. spread spectum band harmonized through the EU?
Which Member States have not harmonized?
Do I have to go through a Notified Body to Notify?
Since paragraph 31 uses should and not shall do I have to do it all?
Paragraph 31 from the RTTE Directive.
(31) Whereas manufacturers should notify Member States
of their intention to place radio equipment on the
market using frequency bands whose use is not
harmonised throughout the Community; whereas
Member States therefore need to put in place procedures
for such notification; whereas such procedures
should be proportionate and should not constitute a
conformity assessment procedure additional to those
provided for in Annexes IV or V; whereas it is desirable
that those notification procedures should be
harmonised and preferably implemented by electronic
means and one-stop-shopping;
Thanks in advance,
Jan Heffken
--
CoreComm Webmail.
http://home.core.com
This message is from the IEEE EMC Society Product Safety
Technical Committee emc-pstc discussion list.
Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/
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For policy
NARTE safety engineer certification
Out of curiosity, I wrote NARTE directly regarding the below, to see what benefit they believe NARTE certification would offer someone who already has experience in product safety and a PE Registration. It's been a week and they have not responded. Perhaps that's their answer. Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services San Jose, CA peter.tar...@sanmina-sci.com From: gr...@test4safety.com Sent: Tuesday, June 24, 2003 2:48 PM It’s also worth noting that NARTE will begin the Grandfathering phase for their Certified Product Safety Engineer/Technician award: you can get more information by registering on the 501(c)(iii) (Charity) site of www.eGlobalEd.Org Best regards Gregg This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: CISPR Receiver/SA
In a message dated 7/2/2003 7:47:13 AM Central Daylight Time, richwo...@tycoint.com writes: If you were purchasing a brand new, fully CISPR compliant EMC receiver/SA, and wanted to obtain the best value at the lowest cost, what would you choose and why? Likewise, if you decided to purchase a used receiver/SA, what would you choose and why? Richard Woods Sensormatic Electronics Tyco International Morning Richard, the answer is of course Schaffner :-) Reasons, best compromise of price performance. I believe the 18 GHz model is around $65k new Derek N. Walton Owner L F Research EMC Design and Test Facility Poplar Grove, Illinois, USA www.lfresearch.com
RE: RTTE Directive Member States Notification
Out of curiosity...are there ANY harmonized frequencies in Europe? Is 13.56 MHz harmonized? Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: Czech medical grounding?
Brent - 60601-1-1 has a requirement for use of an equipotential bonding terminal when the equipment is either Category AP Equipment or Category APG Equipment. These equipment types are related to flammable mixtures that are used for gaseous anesthetics and the requirement is intended to reduce the likelihood of ESD as a source of ignition. There is no exception stated for battery powered equipment and neither should there be, since many anesthetic gases are incredibly flammable and some are self oxidizing. If the product in question is Category AP Equipment or Category APG Equipment, the concern is legitimate. If not, it may relate more to the specific use environment in that particular hospital. For a reference, see the MSDS for cyclopropane http://www.matheson-trigas.com/msds/MAT06080.pdf One line from this MSDS is enough to give pause: Electrostatic discharges may be generated by flow or agitation resulting in ignition or explosion. eek! Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services San Jose, CA peter.tar...@sanmina-sci.com From: brent.dew...@us.datex-ohmeda.com Sent: Friday, June 27, 2003 12:26 PM I got some weird feedback from one of our sales people in the Czech republic. One of the local folks said they were concerned that a metal cased piece of medical electrical equipment didn't have a separate ground for when it was used on internal batteries. I'm an EMC guy so I was wondering if any of the safety experts out there could tell me if this makes any sense from a regulatory standpoint. Thanks! Brent DeWitt This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
IP ratings vs Nema Ratings
Group, I am trying to find a cross reference between Nema ratings for enclosures and IP ratings for enclosures. I have looked at three different cross references and come up with three different answers. Thanks, Jim Sotherden Agency Coordinator/Test Engineer GE Fanuc Automation NA Route 29N 606, Charlottesville, VA 22911 PH: (434) 978-6224 Fax: (434) 978-5102 Dial Com *277-6224 Email: jim.sother...@gefanuc.com Web: www.gefanuc.com This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: RTTE Directive Member States Notification
My understanding is that where there is a harmonised standard, but the
spectrum usage is not harmonised, then there is no need to involve a
Notified Body for any of the testing, but you do need a Spectrum Usage
Report from a Notified Body to ratify the intended usage of the device in
the target destination. I have had such reports produced by BABT, and the
cost is quite minimal, probably equivalent to about one man-day's effort,
which is about all that it should take to review the documentation. In this
instance, I would suggest that it is perfectly legitimate to place the NB
number alongside the CE marking to indicate their involvement in determining
the product's suitability for the intended market.
Broadly speaking, it seems to me that for a Class 1 device (harmonised
standards and spectrum usage) there is no need for a NB, but for Class 2
devices, a NB will need to be involved for the spectrum usage at least.
Best regards,
Neil R. Barker
Compliance Engineering Manager
e2v technologies ltd
Waterhouse Lane
Chelmsford
Essex
CM1 2QU
U.K.
Tel: +44 (01245) 453616
Fax: +44 (01245) 453410
E-mail: neil.bar...@e2vtechnologies.com
-Original Message-
From: Bill Stumpf [mailto:bstu...@dlsemc.com]
Sent: 02 July 2003 13:59
To: emc-p...@majordomo.ieee.org
Subject: RE: RTTE Directive Member States Notification
Richard Woods wrote: Gerald, please explain why a Notified Body number
is required? I thought that a harmonized ETSI standard exists.
A Notified Body number is not required unless a Notified Body (NB or
CAB) is consulted for the job. Since there are Harmonized
standards that
can be used for this type of product, a NB/CAB is not required. The
manufacturer is responsible for compliance with the Essential
Requirements of the Directives, therefore they are responsible for
notifying the different Member States of the EU of their intent to
market the device in their country.
William M Stumpf
DLS Electronics
166 South Carter St.
Genoa City WI 53128
ph: 262-279-0210
fx: 262-279-3630
email: bstu...@dlsemc.com
EU CAB for EMC and RTTE
-Original Message-
From: richwo...@tycoint.com [mailto:richwo...@tycoint.com]
Sent: Tuesday, July 01, 2003 1:32 PM
To: emc-p...@majordomo.ieee.org
Subject: RE: RTTE Directive Member States Notification
Gerald, please explain why a Notified Body number is
required? I thought
that a harmonized ETSI standard exists.
Richard Woods
Sensormatic Electronics
Tyco International
-Original Message-
From: Gerald Tammi [mailto:gera...@zoom.com]
Sent: Tuesday, July 01, 2003 12:52 PM
To: 'Jan Heffken'; emc-p...@majordomo.ieee.org
Subject: RE: RTTE Directive Member States Notification
I have gone through the process of a 802.11 WLAN.
France is not harmonized to the rest on the EU in the 2.4Ghz spread
spectrum.
Yes you will need a NOTIFIED BODY number to submit with the country
notifications
Yes you need to send notification to each country that you
want to sell
into.
There is a 30 day waiting period for each country to reply before you
can
sell into that market. {they may respond sooner that the 30
days} They
may
reject especially if there is an external antenna.
If you are shipping out of the United States, and the product has an
embedded encryption engine; you need to file for an export
license with
the
US BXA. Also you need to comply with control of export to the T7
terrorist
countries ban.
Gerald Tammi
Zoom Telephonics.
Boston, MA
-Original Message-
From: Jan Heffken [mailto:jheff...@core.com]
Sent: Tuesday, July 01, 2003 10:04 AM
To: emc-p...@majordomo.ieee.org
Subject: RTTE Directive Member States Notification
I am a little confused about paragraph 31 of the RTTE Directive. I
have copied it below. My understanding is that if our
equipment (2.4GHz
outdoor WLAN) operates in a non-harmonised frequency band,
then we have
to Notify Member States where it is not harmonised.
Where can I find answers to the following questions.
Is the 2,4GHz. spread spectum band harmonized through the EU?
Which Member States have not harmonized?
Do I have to go through a Notified Body to Notify?
Since paragraph 31 uses should and not shall do I have to
do it all?
Paragraph 31 from the RTTE Directive.
(31) Whereas manufacturers should notify Member States
of their intention to place radio equipment on the
market using frequency bands whose use is not
harmonised throughout the Community; whereas
Member States therefore need to put in place procedures
for such notification; whereas such procedures
should be proportionate and should not constitute a
conformity assessment procedure additional to those
provided for in Annexes IV or V; whereas it is desirable
that those notification procedures should be
harmonised and preferably implemented by electronic
means and one-stop-shopping;
Thanks in advance,
Jan Heffken
--
RE: NARTE safety engineer certification
I responded to the website below (which does not seem to be related to NARTE) and also got no response. I do believe this is a HOAX. From: owner-emc-p...@majordomo.ieee.org [mailto:owner-emc-p...@majordomo.ieee.org]On Behalf Of Peter L. Tarver Sent: Wednesday, 02 July, 2003 7:03 AM To: 'emc-pstc' Subject: NARTE safety engineer certification Out of curiosity, I wrote NARTE directly regarding the below, to see what benefit they believe NARTE certification would offer someone who already has experience in product safety and a PE Registration. It's been a week and they have not responded. Perhaps that's their answer. Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services San Jose, CA peter.tar...@sanmina-sci.com From: gr...@test4safety.com Sent: Tuesday, June 24, 2003 2:48 PM It’s also worth noting that NARTE will begin the Grandfathering phase for their Certified Product Safety Engineer/Technician award: you can get more information by registering on the 501(c)(iii) (Charity) site of www.eGlobalEd.Org Best regards Gregg This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: RTTE Directive Member States Notification
I understand that Class 1 products use harmonized bands. 13.56 MHz is not harmonized. Sigh! Richard Woods Sensormatic Electronics Tyco International From: rehel...@mmm.com [mailto:rehel...@mmm.com] Sent: Wednesday, July 02, 2003 10:05 AM To: emc-p...@majordomo.ieee.org Subject: RE: RTTE Directive Member States Notification Out of curiosity...are there ANY harmonized frequencies in Europe? Is 13.56 MHz harmonized? Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: RTTE Directive Member States Notification
Yes there are harmonized bands E.g. cellular bands for GSM in the 900 and 1800 MHz range, some satellite services. These are bands were the different member states didn't had other radio services before. For this reason this was easy to harmonize. But if some member states had radio services in certain areas this will take time to remove these services, since there are users having devices which can't be used after changing this. Lothar Schmidt BQB Technical Manager EMC/Radio/SAR CETECOM Inc. 411 Dixon Landing Road Milpitas, CA 95035 ' +1 408 586 6214 7 +1 408 586 6299 From: rehel...@mmm.com [mailto:rehel...@mmm.com] Sent: Wednesday, July 02, 2003 7:05 AM To: emc-p...@majordomo.ieee.org Subject: RE: RTTE Directive Member States Notification Out of curiosity...are there ANY harmonized frequencies in Europe? Is 13.56 MHz harmonized? Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc Download free spam killer at http://eliminatespam.com This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: NARTE safety engineer certification
Hi Peter: Out of curiosity, I wrote NARTE directly regarding the below, to see what benefit they believe NARTE certification would offer someone who already has experience in product safety and a PE Registration. It's been a week and they have not responded. Perhaps that's their answer. I asked for their registration forms. I have yet the hear from them. Best regards, Rich This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: NARTE safety engineer certification
Hi Pete, Funny you should mention that - It has been a year since this was decided and getting info is like pulling teeth. I have yet to hear back from this latest ad also. Website was cool!! Scott - Original Message - From: Peter L. Tarver mailto:peter.tar...@sanmina-sci.com To: 'emc-pstc' mailto:emc-p...@majordomo.ieee.org Sent: Wednesday, July 02, 2003 9:03 AM Subject: NARTE safety engineer certification Out of curiosity, I wrote NARTE directly regarding the below, to see what benefit they believe NARTE certification would offer someone who already has experience in product safety and a PE Registration. It's been a week and they have not responded. Perhaps that's their answer. Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services San Jose, CA peter.tar...@sanmina-sci.com From: gr...@test4safety.com Sent: Tuesday, June 24, 2003 2:48 PM It's also worth noting that NARTE will begin the Grandfathering phase for their Certified Product Safety Engineer/Technician award: you can get more information by registering on the 501(c)(iii) (Charity) site of www.eGlobalEd.Org Best regards Gregg This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Source of noise
Morning folks.. I find myself wrestling with PC emissions again. No names this time :-) Above 500 MHz, I'm seeing a bunch of reasonably stable harmonics with about a 33 MHz spacing. Any thoughts as to what they may be from? I've played with all the case openings etc, and also added a ferrite bead to every cable leaving the MB... only minimal effect on this particular set of emissions. Ironically, the cooling fan is a big problem, it's powered from a 5 volt source that's very noisy. Consequently, the wires going to it radiate like crazy... I believe the MotherBoard is clocking around 1 GHz. Cheers, Derek N. Walton Owner L F Research EMC Design and Test Facility Poplar Grove, Illinois, USA www.lfresearch.com
Re: Re:CE for components?
Neil Helsby wrote if I am to include a bought in power supply (or any other module) in my system I need to have a good idea that when I test my system an EMC failure due to the design and/or construction of the power supply does not cause me grief. This is a problem for everyone whose product may be attached to another's. It's prudent not to rely on attenuation of the attached or added device for compliance. It's reasonable to expect it not to add more problems, too. I like to say in the purchase specification that the purchased item shall not cause an otherwise compliant device with which or in which it is used, to become non-compliant. This may require some work (especially for buss plug-ins) to live up to. Of course, we are all familiar with times CE + CE is not CE. But it is often our job to make it so. Cortland This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: RTTE Directive Member States Notification
Ah, you have hit upon a problem that I see with the Directive. When the
spectrum is not harmonized and Notification is required, who is responsible
for ensuring that the equipment operates according to the spectrum usage
requirements of the Notified country. Is it the responsibility of the
manufacturer or the country spectrum authorities? If I fail to receive a
reply from my Notification, the Directive says I am free to market the
equipment after the Notifcation period has elapsed. But what if the country
failed to reply and yet the country has a spectrum restriction? I have
received some replies that say they have received my Notification and I can
market the equipment if it conforms with the spectrum regulations. Huh? They
may as well have said We received your Notification but did not read it.
This reply is just a formality and all of the conformity responsiblity
belongs to you.
My understanding of the Directive is that I can market my product unless the
spectrum authority specifically says NO. Of course, the spectrum authority
who sent the crazy worded message probably thinks otherwise.
Richard Woods
Sensormatic Electronics
Tyco International
From: Barker, Neil [mailto:neil.bar...@e2vtechnologies.com]
Sent: Wednesday, July 02, 2003 10:11 AM
To: 'Bill Stumpf'; emc-p...@majordomo.ieee.org
Subject: RE: RTTE Directive Member States Notification
My understanding is that where there is a harmonised standard, but the
spectrum usage is not harmonised, then there is no need to involve a
Notified Body for any of the testing, but you do need a Spectrum Usage
Report from a Notified Body to ratify the intended usage of the device in
the target destination. I have had such reports produced by BABT, and the
cost is quite minimal, probably equivalent to about one man-day's effort,
which is about all that it should take to review the documentation. In this
instance, I would suggest that it is perfectly legitimate to place the NB
number alongside the CE marking to indicate their involvement in determining
the product's suitability for the intended market.
Broadly speaking, it seems to me that for a Class 1 device (harmonised
standards and spectrum usage) there is no need for a NB, but for Class 2
devices, a NB will need to be involved for the spectrum usage at least.
Best regards,
Neil R. Barker
Compliance Engineering Manager
e2v technologies ltd
Waterhouse Lane
Chelmsford
Essex
CM1 2QU
U.K.
Tel: +44 (01245) 453616
Fax: +44 (01245) 453410
E-mail: neil.bar...@e2vtechnologies.com
-Original Message-
From: Bill Stumpf [mailto:bstu...@dlsemc.com]
Sent: 02 July 2003 13:59
To: emc-p...@majordomo.ieee.org
Subject: RE: RTTE Directive Member States Notification
Richard Woods wrote: Gerald, please explain why a Notified Body number
is required? I thought that a harmonized ETSI standard exists.
A Notified Body number is not required unless a Notified Body (NB or
CAB) is consulted for the job. Since there are Harmonized
standards that
can be used for this type of product, a NB/CAB is not required. The
manufacturer is responsible for compliance with the Essential
Requirements of the Directives, therefore they are responsible for
notifying the different Member States of the EU of their intent to
market the device in their country.
William M Stumpf
DLS Electronics
166 South Carter St.
Genoa City WI 53128
ph: 262-279-0210
fx: 262-279-3630
email: bstu...@dlsemc.com
EU CAB for EMC and RTTE
-Original Message-
From: richwo...@tycoint.com [mailto:richwo...@tycoint.com]
Sent: Tuesday, July 01, 2003 1:32 PM
To: emc-p...@majordomo.ieee.org
Subject: RE: RTTE Directive Member States Notification
Gerald, please explain why a Notified Body number is
required? I thought
that a harmonized ETSI standard exists.
Richard Woods
Sensormatic Electronics
Tyco International
-Original Message-
From: Gerald Tammi [mailto:gera...@zoom.com]
Sent: Tuesday, July 01, 2003 12:52 PM
To: 'Jan Heffken'; emc-p...@majordomo.ieee.org
Subject: RE: RTTE Directive Member States Notification
I have gone through the process of a 802.11 WLAN.
France is not harmonized to the rest on the EU in the 2.4Ghz spread
spectrum.
Yes you will need a NOTIFIED BODY number to submit with the country
notifications
Yes you need to send notification to each country that you
want to sell
into.
There is a 30 day waiting period for each country to reply before you
can
sell into that market. {they may respond sooner that the 30
days} They
may
reject especially if there is an external antenna.
If you are shipping out of the United States, and the product has an
embedded encryption engine; you need to file for an export
license with
the
US BXA. Also you need to comply with control of export to the T7
terrorist
countries ban.
Gerald Tammi
Zoom Telephonics.
Boston, MA
-Original Message-
From: Jan Heffken [mailto:jheff...@core.com]
RE: RTTE Directive Member States Notification
Bob, Go to the ERO website www.ero.dk and download ERC report 25. It's a big help when determining frequency allocation/use in the EU. Bill Stumpf William M Stumpf DLS Electronics 166 South Carter St. Genoa City WI 53128 ph: 262-279-0210 fx: 262-279-3630 email: bstu...@dlsemc.com From: rehel...@mmm.com [mailto:rehel...@mmm.com] Sent: Wednesday, July 02, 2003 9:05 AM To: emc-p...@majordomo.ieee.org Subject: RE: RTTE Directive Member States Notification Out of curiosity...are there ANY harmonized frequencies in Europe? Is 13.56 MHz harmonized? Bob Heller 3M EMC Laboratory, 76-1-01 St. Paul, MN 55107-1208 Tel: 651- 778-6336 Fax: 651-778-6252 This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: IP ratings vs Nema Ratings
As you are probably aware, there are no exact equivalencies between IP NEMA/UL Type ratings since they are based on different standards/tests. The only standard that I am aware of that provides a general comparison guide between the two is the 2003 version of NFPA 79 (Table F.5.5). Sincerely, Nick Momcilovic Product Safety Quad/Tech, Inc. A Subsidiary of Quad/Graphics Sussex, Wisconsin 414-566-7915 phone 414-566-9576 fax nick.momcilo...@qtiworld.com www.qtiworld.com From: Sotherden, Jim (IndSys, GEFanuc, NA) [mailto:jim.sother...@gefanuc.com] Sent: Wednesday, July 02, 2003 9:46 AM To: 'emc-pstc' Subject: IP ratings vs Nema Ratings Group, I am trying to find a cross reference between Nema ratings for enclosures and IP ratings for enclosures. I have looked at three different cross references and come up with three different answers. Thanks, Jim Sotherden Agency Coordinator/Test Engineer GE Fanuc Automation NA Route 29N 606, Charlottesville, VA 22911 PH: (434) 978-6224 Fax: (434) 978-5102 Dial Com *277-6224 Email: jim.sother...@gefanuc.com Web: www.gefanuc.com This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: IEC65 7th edition, creepage clearance
In a message dated 7/2/2003, Chris Colgan writes: A designer wants to place a ground plane above a mains track on a pcb, contained within a 230V rated domestic type product. As far as I can tell, 1) The minimum thickness of the pcb material between the ground plane and track should be 0.4mm, the insulation resistance between the two be 4Mohm and the dielectric strength test be 3kV(rms). (Clause 8.8) Hi Chris: I'm not familiar with the details of IEC 65, but in IEC 60950-1, clause 2.10.5.3, titled Printed Circuit Boards, describes several circuit board construction methods that can be used as an alternative to the 0.4 mm thickness requirement. These generally relate to using two or more layers of thin sheet insulation, which is pretty easy to do in a circuit board. I suspect that you may find similar options described somewhere in IEC 65. Joe Randolph Telecom Design Consultant Randolph Telecom, Inc. 781-721-2848 j...@randolph-telecom.com http://www.randolph-telecom.com
RE: CISPR Receiver/SA
-Original Message- From: richwo...@tycoint.com [ mailto:richwo...@tycoint.com] Sent: Wednesday, July 02, 2003 5:43 AM To: emc-p...@majordomo.ieee.org Subject: CISPR Receiver/SA If you were purchasing a brand new, fully CISPR compliant EMC receiver/SA, and wanted to obtain the best value at the lowest cost, what would you choose and why? Likewise, if you decided to purchase a used receiver/SA, what would you choose and why? Richard Woods Sensormatic Electronics Tyco International Rich: I'd like to address the second half of your question, the lowest cost end. I wanted to have some kind of backup, a sanity check, for my fancy automated spectrum analyzer system. My solution was to buy old receivers on eBay. One particular system, the Eaton / Singer / Stoddart Series 7 receivers (NM-17/27 NM-37/57) can be used with the CCA-7 quasi-peak adapter, to give you a very nice back-up or pre-compliance measurement capability. You can run these in manual mode, or use internal sweeps with an external plotter. And the amazing thing is that you can get these for $200 or so off of eBay. (The usual disclaimers; don't buy what you can't fix; the operator has to be smarter than the machine; do you feel lucky?) My experience was; bought an NM-17 for $160, works perfectly; bought an NM-37 for $65, bad tuning voltage, took a few hours to fix it; bought a CCA-7 for $110, works perfectly; bought an NM-7 for $125, works but cal control is noisy; bought an NM-65 for $175, has a power supply problem but haven't had time to look at it. So, using your criteria of lowest cost (and I think the value is there too, since it does the job), I spent about $650, and got a measurement system that covers 30 Hz to 12 GHz (OK, the 1-12 GHz part isn't working yet), with a QP capability too! Another low-end solution is an HP-141T spectrum analyzer mainframe, with 8552 IF and 8555 8553 plug-ins. This will give you 10 kHz to 18 GHz coverage, but only with a Peak detector. Get an 8556 plug-in, and you can extend the range down to 30 Hz. I have a complete 141 system, but can't really suggest it too strongly, since the surplus units are all over the range in quality. Buying one of these is depending on luck a bit too much for even me. They are still repairable by humans, but it helps to have very small fingers and lots of patience. BTW, one other thing that's often overlooked in the total cost is the fact that you don't have to maintain any periodic calibration on these back-up systems. (My company operates with an internal Metrology department, and every piece of equipment I have has to have a calibration budget, or be declared non-calibrated support equipment. Some very reliable instruments may have been written off long ago, but their calibration budgets remain. I have to be careful that, when I acquire something, I also consider the ongoing calibration cost too.) Obviously, the above are not economically competitive systems for a full-time test lab. OTOH, it's a big improvement over an oscilloscope with a loop probe antenna, or waving a hand-held scanner over your product. Regards, Ed Ed Price ed.pr...@cubic.com WB6WSN NARTE Certified EMC Engineer Technician Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military Avionics EMC Is Our Specialty
RE: Source of noise
Hi Derek, 33 MHz is a standard clock frequency for PCI bus. Possible sources are; motherboard bridge to PCI connectors; motherboard bridge to PCI IC devices on the motherboard such as on board LAN, USB or audio; sometimes a PCI card will have an onboard bridge that redistributes the PCI bus to several devices on the PCI card. Typically, PCI clocks go to a single device so clock distribution IC is required. These some possible sources if it is PCI bus. Isolating the component blocks or clock lines can be a little tricky because it may shut down the complete system. Having the ability to control the firmware is very helpful. Hope this helps and good luck. RICK LINFORD rlinf...@sonicwall.com From: lfresea...@aol.com [mailto:lfresea...@aol.com] Sent: Wednesday, July 02, 2003 10:39 AM To: emc-p...@ieee.org Subject: Source of noise Morning folks.. I find myself wrestling with PC emissions again. No names this time :-) Above 500 MHz, I'm seeing a bunch of reasonably stable harmonics with about a 33 MHz spacing. Any thoughts as to what they may be from? I've played with all the case openings etc, and also added a ferrite bead to every cable leaving the MB... only minimal effect on this particular set of emissions. Ironically, the cooling fan is a big problem, it's powered from a 5 volt source that's very noisy. Consequently, the wires going to it radiate like crazy... I believe the MotherBoard is clocking around 1 GHz. Cheers, Derek N. Walton Owner L F Research EMC Design and Test Facility Poplar Grove, Illinois, USA www.lfresearch.com
RE:
unsubscribe This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: New Approach vs WEEE/RoHS
Hi Joe, You're correct that the CE Mark is not applied, but there are marking requirements. The WEEE Directive requires that producers place a crossed-out wheely bin symbol on their equipment (or packaging/user guide/warranty where this is not feasible), signifying separate collection. Also, the date of placing on the market should be shown on the equipment, if this date is after 13 August 2005. Finally, the identity of the producer must also be shown. There are additional information requirements if your equipment is intended for private households. Article 11 requires the producer to provide re-use and treatment info within one year of placing on the market, helping recycling facilities to identify the different components and materials, as well as hazardous substances and their locations. The way this is worded suggests that complete material info should be provided, and I guess this is a declaration of sorts. Producers (or their representatives) are also required to keep records of the mass of WEEE on entering and leaving treatment facilities, to enable compliance with the recovery/re-use targets for the different equipment criteria to be assessed. The RoHS Directive has no specific compliance declaration or marking requirements. It stipulates that the six substances are banned from 1 July 2006. Nor does it define what is meant by e.g. lead-free (the definition in the Vehicle EOL Directive is being touted as the most likely, i.e. 0.1wt%). There's a list of those devices, including medical devices, which are covered by the WEEE Directive in Annex 1B. Best regards, Joe P Martin marti...@appliedbiosystems.com wrote: Greetings, It is my understanding that the WEEE and RoHS Directives are not New Approach Directives. What is the difference between New Approach Directives and other directives such as WEEE/RoHS? In order to declare conformity to New Approach Directives, the manufacturer places the CE mark on the product and issues a Declaration of Conformity. How does a manufacturer declare compliance to the WEEE/RoHS? As always, your responses are appreciated. Regards Joe Martin EMC/Product Safety Engineer Applied Biosystems marti...@appliedbiosystems.com This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, ! send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc _ Do you Yahoo!? Free online calendar http://us.rd.yaho .com/mail_us/tag/*http://calendar.yahoo.com with sync to Outlook(TM).
New Approach vs WEEE/RoHS
Greetings, It is my understanding that the WEEE and RoHS Directives are not New Approach Directives. What is the difference between New Approach Directives and other directives such as WEEE/RoHS? In order to declare conformity to New Approach Directives, the manufacturer places the CE mark on the product and issues a Declaration of Conformity. How does a manufacturer declare compliance to the WEEE/RoHS? As always, your responses are appreciated. Regards Joe Martin EMC/Product Safety Engineer Applied Biosystems marti...@appliedbiosystems.com This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
looking at internal signals on an IC
Hi All, Would you like to measure risetimes of internal signals on an IC in a package? Something like this is possible using E-field coupling. Most of my articles on noise touch on magnetic field coupling, but this month's Technical Tidbit presents a simple method of measuring E-field coupled IC chip noise. Such a measurement can be a useful troubleshooting tool for designers and EMC personnel as well. One can even see internal risetimes on the chip. Abstract: Measuring noise coupled onto a copper foil patch applied to a chip package can yield useful data. A method of measurement is suggested and data presented. The data from such a measurement can be useful for design troubleshooting as well as EMC work. Uses related to reliable system operation and as well as conclusions for EMC compliance are presented. As usual, the link to the article is the picture of the experimental setup at the bottom of the homepage at http://emcesd.com. Have a good month, Doug -- ___ _ Doug Smith \ / ) P.O. Box 1457 = Los Gatos, CA 95031-1457 _ / \ / \ _ TEL/FAX: 408-356-4186/358-3799 / /\ \ ] / /\ \ Mobile: 408-858-4528 | q-( ) | o |Email: d...@dsmith.org \ _ /]\ _ / Website: http://www.dsmith.org This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
User Manual
Hello Group, Does anybody have a clue where I could locate User Manual for following WISTRON Model, 6669M (40GHz Signal Gen.) Thanks in advance. Harpreet Sidhu This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: Source of noise
In a message dated 7/2/2003 3:03:29 PM Central Daylight Time, bstu...@dlsemc.com writes: Derek, All power supplies are supposed to be tested with a representative system. They are primarily designed to filter the supply emissions, since line filters typically do little filtering above 20 or 25 MHz. Also remember the old saying, CE plus CE does NOT equal CE! Bill William M Stumpf DLS Electronics 166 South Carter St. Genoa City WI 53128 ph: 262-279-0210 fx: 262-279-3630 email: bstu...@dlsemc.com From what I've seen, I have to conclude this isn't happening... In messing around, at about 40 MHz, the PC noise is showing up on the power cord. I guess noone worries because CE stops at 30 MHz. Good to hear from you :-) Cheers, Derek N. Walton Owner L F Research EMC Design and Test Facility Poplar Grove, Illinois, USA www.lfresearch.com
RE: Source of noise
Derek, All power supplies are supposed to be tested with a representative system. They are primarily designed to filter the supply emissions, since line filters typically do little filtering above 20 or 25 MHz. Also remember the old saying, CE plus CE does NOT equal CE! Bill William M Stumpf DLS Electronics 166 South Carter St. Genoa City WI 53128 ph: 262-279-0210 fx: 262-279-3630 email: bstu...@dlsemc.com From: lfresea...@aol.com [mailto:lfresea...@aol.com] Sent: Wednesday, July 02, 2003 2:16 PM To: emc-p...@ieee.org Subject: Re: Source of noise Hi All, Thanks for the great replies! looks like the PCI bus is the problem.. But here's the quandry.. Now we are adding the cards back in, they should add little to the profile, correct? After all, they all have the CE mark on them, and some have the FCC sticker too. This is not happening, in fact some emissions are quire strong.. I've also noticed that the Power supply is letting the PC noise out. I opened the power supply ( bang goes the warrenty ), and there is the minimal of filters.. Are the power supplies tested individually to carry the agency sticker?, with a real PC? or just load resistors? Are they designed to suppress the PC noise? Cheers, Derek N. Walton Owner L F Research EMC Design and Test Facility Poplar Grove, Illinois, USA www.lfresearch.com
Re: Source of noise
Derek, Most of the PS manufacturers I've dealt with use passive dummy loads or quiet active loads. These very handy quiet active loads provide programmable loading, BUT IN NO WAY SIMULATE THE SUPPLY'S ACTUAL USE. In other words, how many quiet loads do you power? Almost every load is a micro or some digital electronics. I've been training my clients to inject heavy noise at their load outputs [common mode and differential mode] to make certain that their supplies are not transparent to those variable loads. Most now test some time during development with active digital loads to make certain their supplies don't pass the noise right back through the supply. Above 30MHz does not require a lot of bulk for filtering. Most of the bulk is there for the near 150KHz noise. You'll find that part selection and layout are more critical for filtering above 20MHz. I always encourage end-users to include operating specs in their PS purchase agreements to put the burden for proper design back onto the PS manufacturers. - Robert - Robert A. Macy, PEm...@california.com 408 286 3985 fx 408 297 9121 AJM International Electronics Consultants 101 E San Fernando, Suite 402 San Jose, CA 95112 On Wed, 2 Jul 2003 15:16:22 EDT lfresea...@aol.com wrote: Hi All, Thanks for the great replies! looks like the PCI bus is the problem.. But here's the quandry.. Now we are adding the cards back in, they should add little to the profile, correct? After all, they all have the CE mark on them, and some have the FCC sticker too. This is not happening, in fact some emissions are quire strong.. I've also noticed that the Power supply is letting the PC noise out. I opened the power supply ( bang goes the warrenty ), and there is the minimal of filters.. Are the power supplies tested individually to carry the agency sticker?, with a real PC? or just load resistors? Are they designed to suppress the PC noise? Cheers, Derek N. Walton Owner L F Research EMC Design and Test Facility Poplar Grove, Illinois, USA www.lfresearch.com This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Re: Source of noise
Hi All, Thanks for the great replies! looks like the PCI bus is the problem.. But here's the quandry.. Now we are adding the cards back in, they should add little to the profile, correct? After all, they all have the CE mark on them, and some have the FCC sticker too. This is not happening, in fact some emissions are quire strong.. I've also noticed that the Power supply is letting the PC noise out. I opened the power supply ( bang goes the warrenty ), and there is the minimal of filters.. Are the power supplies tested individually to carry the agency sticker?, with a real PC? or just load resistors? Are they designed to suppress the PC noise? Cheers, Derek N. Walton Owner L F Research EMC Design and Test Facility Poplar Grove, Illinois, USA www.lfresearch.com
RE: IP ratings vs Nema Ratings
It took a little searching, but I found a web page on UL's site that has this comparison at: http://www.ul.com/hazloc/ref/conversion.htm which matches the NEMA250:1997, Table A-1 conversions. The web page refers to NEMA 250, for additional details, and NEMA 250 makes the same reverse conversion statement, mentioned by Art Michael. It's not as detailed as the NFPA79:2002, Table F.5.5. There seems to be a difference of opinion as to conversion between NEMA enclosure Types and IP ratings, NFPA79 (at first blush) being the more conservative (but this may not apply across the entire chart). All only consider the first two IP characters. NEMA 250, Appendix A, paragraph 1, indicates this is doe to NEMA requirements not addressing corrosion, rust, icing, oil, and coolants. Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services San Jose, CA peter.tar...@sanmina-sci.com From: Arthur Michael Sent: Wednesday, July 02, 2003 9:05 AM Hi Jim, Where have you already found data re NEMA vs IEC ratings? UL offers a chart (NEMA IP Ratings) as does NEMA (NEMA 250, Table A-1) for NEMA IEC - IP Ratings); however, each notes that the charts are to be used only in the indicated direction (and not the reverse). I expect that because the ratings are not precise equivalents, that discrepancies do occur and thus, the differences in the charts you may have found. Best regards, Art Michael This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: NARTE safety engineer certification
I to responded to the organization and have yet to hear back. However, mine request was only a few days ago. Bryan. From: Scott Barrows To: Peter L. Tarver; 'emc-pstc' Sent: 7/2/03 11:38 AM Subject: Re: NARTE safety engineer certification Hi Pete, Funny you should mention that - It has been a year since this was decided and getting info is like pulling teeth. I have yet to hear back from this latest ad also. Website was cool!! Scott - Original Message - From: Peter L. Tarver mailto:peter.tar...@sanmina-sci.com To: 'emc-pstc' mailto:emc-p...@majordomo.ieee.org Sent: Wednesday, July 02, 2003 9:03 AM Subject: NARTE safety engineer certification Out of curiosity, I wrote NARTE directly regarding the below, to see what benefit they believe NARTE certification would offer someone who already has experience in product safety and a PE Registration. It's been a week and they have not responded. Perhaps that's their answer. Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services San Jose, CA peter.tar...@sanmina-sci.com mailto:peter.tar...@sanmina-sci.com From: gr...@test4safety.com mailto:gr...@test4safety.com Sent: Tuesday, June 24, 2003 2:48 PM It's also worth noting that NARTE will begin the Grandfathering phase for their Certified Product Safety Engineer/Technician award: you can get more information by registering on the 501(c)(iii) (Charity) site of www.eGlobalEd.Org http://www.eGlobalEd.Org Best regards Gregg This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org mailto:majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com mailto:emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com mailto:emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org mailto:ri...@ieee.org Jim Bacher: j.bac...@ieee.org mailto:j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc http://www.ieeecommunities.org/emc-pstc This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: NARTE safety engineer certification
Hi Scott and all, The web site is reputable and the organization is run by Greg Kervill who may be on vacation / travel and not responding to the emails right now. Whomever is interested in this program I suggest you contact Greg and/or NARTE. Regards, Kurt From: Scott Barrows [mailto:sbarr...@curtis-straus.com] Sent: Wednesday, July 02, 2003 8:38 AM To: Peter L. Tarver; 'emc-pstc' Subject: Re: NARTE safety engineer certification Hi Pete, Funny you should mention that - It has been a year since this was decided and getting info is like pulling teeth. I have yet to hear back from this latest ad also. Website was cool!! Scott - Original Message - From: Peter L. Tarver mailto:peter.tar...@sanmina-sci.com To: 'emc-pstc' mailto:emc-p...@majordomo.ieee.org Sent: Wednesday, July 02, 2003 9:03 AM Subject: NARTE safety engineer certification Out of curiosity, I wrote NARTE directly regarding the below, to see what benefit they believe NARTE certification would offer someone who already has experience in product safety and a PE Registration. It's been a week and they have not responded. Perhaps that's their answer. Regards, Peter L. Tarver, PE Product Safety Manager Sanmina-SCI Homologation Services San Jose, CA peter.tar...@sanmina-sci.com From: gr...@test4safety.com Sent: Tuesday, June 24, 2003 2:48 PM It's also worth noting that NARTE will begin the Grandfathering phase for their Certified Product Safety Engineer/Technician award: you can get more information by registering on the 501(c)(iii) (Charity) site of www.eGlobalEd.Org Best regards Gregg This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: majord...@ieee.org with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Ron Pickard: emc-p...@hypercom.com Dave Heald: emc_p...@symbol.com For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org Archive is being moved, we will announce when it is back on-line. All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
RE: Source of noise
Derek, Harmonics with a 33 MHz spacing would suggest a 33 MHz clock signal, even though these are very high order harmonics. The PCI (not fast PCI) bus has a 33 MHz clock. Jim James L. Knighten, Ph.D. Teradata, a divsion of NCR http://www.ncr.com 17095 Via del Campo San Diego, CA 92127 tel: 858-485-2537 fax: 858-485-3788 From: lfresea...@aol.com [mailto:lfresea...@aol.com] Sent: Wednesday, July 02, 2003 9:39 AM To: emc-p...@ieee.org Subject: Source of noise Morning folks.. I find myself wrestling with PC emissions again. No names this time :-) Above 500 MHz, I'm seeing a bunch of reasonably stable harmonics with about a 33 MHz spacing. Any thoughts as to what they may be from? I've played with all the case openings etc, and also added a ferrite bead to every cable leaving the MB... only minimal effect on this particular set of emissions. Ironically, the cooling fan is a big problem, it's powered from a 5 volt source that's very noisy. Consequently, the wires going to it radiate like crazy... I believe the MotherBoard is clocking around 1 GHz. Cheers, Derek N. Walton Owner L F Research EMC Design and Test Facility Poplar Grove, Illinois, USA www.lfresearch.com
