Re: Japan
Hello All, On the Safety Link www.safetylink.com you will find three links to DENAN resources, including one to Tom Satos' Introduction, another to a tentative translation of the law, and a third to a tentative translation of the Appendices and Forms. I believe you will find the information you seek among the Appendices and Forms section. Regards, Art Michael Int'l Product Safety News A.E. Michael, Editor 166 Congdon St. East P.O. Box 1561 Middletown CT 06457 U.S.A. Phone : (860) 344-1651 Fax: (860) 346-9066 Email : i...@safetylink.com Website: http://www.safetylink.com ISSN : 1040-7529 --- On Mon, 4 Feb 2002, Bill Lyons wrote: In message 3c5ef555.87ce...@post7.tele.dk Kim Boll Jensen writes: Hi Does any one have the DENAN list of electrical equipment which is under the approval scheme in Japan. And also information to which standards equipment have to be tested Best regards, Kim Boll Jensen Bolls Raadgivning Kim, I don't, but I know a guy who does - Tom Sato vef00...@nifty.ne.jp. I'm sure he won't mind my having mentioned his name and he has been a great help and adviser to the fraternity. Bill -- Bill Lyons - b...@lyons.demon.co.uk / w.ly...@ieee.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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
ITE Class A vs B Emissions
We currently design our products to comply with the Class B emissions limits of EN 55022, but I am getting a lot of pressure from engineering to allow the limits to be raised to Class A. The equipment is intended for business use only. I understand that Class A is legal in the EU for business equipment, and our customers don't seem to understand or care if the equipment is Class A or B. So, the question is this - Are you successful in marketing your business ITE as Class A? 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: Japan
In message 3c5ef555.87ce...@post7.tele.dk Kim Boll Jensen writes: Hi Does any one have the DENAN list of electrical equipment which is under the approval scheme in Japan. And also information to which standards equipment have to be tested Best regards, Kim Boll Jensen Bolls Raadgivning Kim, I don't, but I know a guy who does - Tom Sato vef00...@nifty.ne.jp. I'm sure he won't mind my having mentioned his name and he has been a great help and adviser to the fraternity. Bill -- Bill Lyons - b...@lyons.demon.co.uk / w.ly...@ieee.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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: telecom
Hi Kim, I have lost my contact with the TREG group, can some one please tell me how to join again. See below. -- Bill Lyons - b...@lyons.demon.co.uk / w.ly...@ieee.org -Original Message- List-Post: emc-pstc@listserv.ieee.org Date: Fri, 24 Jul 1998 18:37:24 -0400 (EDT) To: b...@lyons.demon.co.uk From: majord...@world.std.com Subject: Welcome to treg Telecom Regulatory E-Mail Grapevine (TREG) == Charter and Guidelines 1 September 1994 Revised Editorially 15 March 1996 TREG is an informal group of people interested in telecommunications regulations and standards world-wide, networked electronically by mailing list. Its purpose is to provide a forum for the sharing of public, but esoteric or possibly obscure telecom compliance information, or related information with limited natural distribution. Members need only send contributions to: t...@world.std.com All mail sent to this Internet address will be immediately echoed to everyone on the TREG list by an automated list server. SUBSCRIBING OR UNSUBSCRIBING - Send an Internet e-mail request with the phase subscribe treg or unsubscribe treg in it to: majord...@world.std.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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Japan
Hi Does any one have the DENAN list of electrical equipment which is under the approval scheme in Japan. And also information to which standards equipment have to be tested Best regards, Kim Boll Jensen Bolls Raadgivning attachment: kimboll.vcf
RE: Haz Loc Testing
You may also want to contact Factory Mutual (Norwood, MA), they are heavily involved into intrinsically safe and explosion proof equipment testing/approvals. Leo Simon EMC Corp. -Original Message- From: cnew...@xycom.com [mailto:cnew...@xycom.com] Sent: Monday, February 04, 2002 1:05 PM To: emc-p...@majordomo.ieee.org Subject: Re: Haz Loc Testing If you're serious about haz loc then I suggest that you purchase the following book from http://www.nfpa.org/Catalog/ Electrical Installations in Hazardous Locations -Carl From: richwo...@tycoint.com on 02/04/2002 10:59 AM Please respond to richwo...@tycoint.com To: emc-p...@majordomo.ieee.org cc:(bcc: Carl Newton/XYCOM) Subject: Haz Loc Testing It would be appreciated if someone would provide me with a brief overview of the testing that is performed in order to classify electronic equipment for use in a hazardous location where fuel vapors are located. 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
EMC Engineer available
Due to a layoff, I no longer work at Alcatel, and am available for other employment in the EMC field. I have been in the EMC field since 1983 and have worked at or for Wang Labs, Digital Equipment, Tandy, AST Research, DSC Corporation and its successor Alcatel USA (now Alcatel). My experience covers FCC part 15 and VDE/CE testing, Tempest (I do not now hold a clearance), and Bellcore/Telcordia telecom approvals. I have presented classes to mechanical and electronic engineers and participated in ongoing design and layout for EMC. In addition, I have some competence using Mentor Boardstation software. For more information, please contact me at one of the e-mail addresses below. Cortland Richmond 72146@compuserve.com k...@earthlink.net cortlandk...@netscape.net --- 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: Haz Loc Testing
Hello Rich, If you visit the Safety Link www.safetylink.com and then search for the term hazloc using your browser's Find function (often Control F), you will find 3 adjacent links to very good resources on this topic. Immediately below those links you will find one on Intrinsic Safety, a closely related subject. Regards, Art Michael Int'l Product Safety News A.E. Michael, Editor 166 Congdon St. East P.O. Box 1561 Middletown CT 06457 U.S.A. Phone : (860) 344-1651 Fax: (860) 346-9066 Email : i...@safetylink.com Website: http://www.safetylink.com ISSN : 1040-7529 - On Mon, 4 Feb 2002 richwo...@tycoint.com wrote: It would be appreciated if someone would provide me with a brief overview of the testing that is performed in order to classify electronic equipment for use in a hazardous location where fuel vapors are located. 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: Haz Loc Testing
If you're serious about haz loc then I suggest that you purchase the following book from http://www.nfpa.org/Catalog/ Electrical Installations in Hazardous Locations -Carl From: richwo...@tycoint.com on 02/04/2002 10:59 AM Please respond to richwo...@tycoint.com To: emc-p...@majordomo.ieee.org cc:(bcc: Carl Newton/XYCOM) Subject: Haz Loc Testing It would be appreciated if someone would provide me with a brief overview of the testing that is performed in order to classify electronic equipment for use in a hazardous location where fuel vapors are located. 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
RE: Haz Loc Testing
Richard, It really depends on the type of protection that is being employed in a particular product. If you want more details, contact me directly. There are several methods that are typically used, two of the most common being: Intrinsically Safe (Division 1) /Non-Incendive (Division 2) Explosion Proof I assume that you are inquiring about Intrinsically safe/Non-Incendive as this is probably the most test intensive To summarize 100 pages of a standard into 1 paragraph: Intrinsically Safe/Non-Incendive: This method relies on the circuitry internal to the product as well as the wiring to and from the product (if it is a permanent installation). This method of protection requires a large amount of circuit analysis to determine the theoretical energy available at points of potential spark release (switches, relays, motors etc). Once the theoretical value of energy has been determined, you can compare this with published ignition curves to determine what spark ignition testing you need to conduct. Spark ignition testing is where the make/break portion of the circuit is placed in an explosive atmosphere and cycled a minimum of 1600 times. (Note: The actual circuit is placed outside the explosive atmosphere, and the circuit is switched using a specialized test setup with a cadmium disk and tungsten electrodes.) If ignition occurs in this atmosphere, the circuit is deemed to have too much energy use in that particular atmosphere and you will either need to drop the investigation back to a lower gas group and retest, or redesign the circuit to limit the amount of available energy. With this method, you want to minimize the amount of capacitance and inductance that you have in your circuit, and to increase the amount of resistance as much as possible. Also conducted are drop tests from 1m on to concrete (for portable apparatus) and temperature tests to determine the maximum temperature in the product. If you are looking for more detail than that, please contact me off line and I will be happy to discuss further. Kevin Robinson Senior Project Engineer/QA Safety Laboratory MET Laboratories-Baltimore Phone: 410-354-3300 x 361 Fax: 410-354-3313 -Original Message- From: richwo...@tycoint.com [SMTP:richwo...@tycoint.com] Sent: Monday, February 04, 2002 11:00 AM To: emc-p...@majordomo.ieee.org Subject: Haz Loc Testing It would be appreciated if someone would provide me with a brief overview of the testing that is performed in order to classify electronic equipment for use in a hazardous location where fuel vapors are located. 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
RE: Eastern European Radio Approvals
I just learned that the source of the below information is the following document http://www.ce-mag.com/ARG/Boughen.html Richard Woods Sensormatic Electronics Tyco International -Original Message- From: WOODS, RICHARD Sent: Monday, February 04, 2002 11:38 AM To: 'emc-pstc' Subject: Eastern European Radio Approvals The following is our understanding of the radio approval process in Eastern European countries for short range devices. I would appreciate any feedback you might have. Routes to approval in the different countries are described in the following paragraphs. Steps initiated by the applicant are numbered. Albania, Estonia, and Latvia. (1) Applicant prepares application documents and payment. (2) Applicant forwards the documents to the appropriate authority in the country in question. The approval body reviews the applications and any European reports and, if finding them satisfactory, issues the approval. Bulgaria and Lithuania. (1) We have first to arrange to have a local representative work on our behalf in the country. (2) We prepare application documents, including translations, and forward them to our local representative. (3) Next, we request the local representative to complete the application forms and forward the application documents to the country's regulatory approvals body. The approvals body reviews the initial application and authorizes the applicant to proceed with obtaining the report validation assessment. (4) The applicant sends the reports to an accredited test house and arranges a contract for the report validation. The test house reviews the European reports. Finding them satisfactory, it validates (rubber-stamps) the European reports and draws up a certificate of conformity- These validated reports and certificates of conformity are then sent to the approvals body for final approval: The approvals body reviews the certificates of conformity and issues the approval. Hungary. (1) Local representative prepares an application for the radio report validation and sends it to the Hungarian test house. (2) The applicant then arranges a contract with the Hungarian test house for validation of the European reports. The test house reviews the European reports. Finding them satisfactory, it validates, (rubber-stamps) the reports and draws up a certificate of conformity. These validated reports and certificates of conformity are then sent back to the applicant. (3) The applicant next prepares the final application for approval, including the application for a radio license. The application is to be sent to the customer service department of the HIF. The approvals body reviews the certificates of conformity, then issues the approval and license. Slovak Republic and Slovenia. (1) We have first to arrange to have a local representative work on our behalf in the country. (2) We prepare application documents, including translations, and forward them to our local distributors. (3) Next, we request the local representative to sign the application forms and forward the application documents to the regulatory approvals body. The approvals authority reviews the applications and authorizes the applicant to proceed with the validation tests. (4) Our local representative visit an accredited test house and arrange a contract for the validation tests. Test dates and fees are arranged. Validation testing against European requirements then commences. Once the products are compliant, the reports are written. The test reports are sent to the approvals body for final approval. The approvals body reviews the reports and issues the approval. Czech Republic, Romania, and Ukraine. (1) We have first to arrange to have a local representative work on our behalf in the country. (2) We prepare application documents, including translations, and forward them to our local distributor. (3) Next, we request the local representative to complete the application forms and forward the application documents to the regulatory approvals body. (For the Czech Republic, we must forward the Czech representative declaration form directly to the regulatory approvals body.) The approvals authority reviews the applications and authorizes the applicant to proceed with the type testing. (4) The applicant has its local representative visit an accredited test house and arrange a contract for testing. Test dates and fees are arranged. Testing to national requirements then commences. The national requirements are based upon European Telecommunications Standards Institute (ETSI) requirements. Once the products are compliant, the reports are written. The test reports are sent to the approvals body for final approval. The approvals body reviews the reports and issues the approval. Poland. (1) Local applicant prepares application documents, including translations, and forwards them to the approvals
Eastern European Radio Approvals
The following is our understanding of the radio approval process in Eastern European countries for short range devices. I would appreciate any feedback you might have. Routes to approval in the different countries are described in the following paragraphs. Steps initiated by the applicant are numbered. Albania, Estonia, and Latvia. (1) Applicant prepares application documents and payment. (2) Applicant forwards the documents to the appropriate authority in the country in question. The approval body reviews the applications and any European reports and, if finding them satisfactory, issues the approval. Bulgaria and Lithuania. (1) We have first to arrange to have a local representative work on our behalf in the country. (2) We prepare application documents, including translations, and forward them to our local representative. (3) Next, we request the local representative to complete the application forms and forward the application documents to the country's regulatory approvals body. The approvals body reviews the initial application and authorizes the applicant to proceed with obtaining the report validation assessment. (4) The applicant sends the reports to an accredited test house and arranges a contract for the report validation. The test house reviews the European reports. Finding them satisfactory, it validates (rubber-stamps) the European reports and draws up a certificate of conformity- These validated reports and certificates of conformity are then sent to the approvals body for final approval: The approvals body reviews the certificates of conformity and issues the approval. Hungary. (1) Local representative prepares an application for the radio report validation and sends it to the Hungarian test house. (2) The applicant then arranges a contract with the Hungarian test house for validation of the European reports. The test house reviews the European reports. Finding them satisfactory, it validates, (rubber-stamps) the reports and draws up a certificate of conformity. These validated reports and certificates of conformity are then sent back to the applicant. (3) The applicant next prepares the final application for approval, including the application for a radio license. The application is to be sent to the customer service department of the HIF. The approvals body reviews the certificates of conformity, then issues the approval and license. Slovak Republic and Slovenia. (1) We have first to arrange to have a local representative work on our behalf in the country. (2) We prepare application documents, including translations, and forward them to our local distributors. (3) Next, we request the local representative to sign the application forms and forward the application documents to the regulatory approvals body. The approvals authority reviews the applications and authorizes the applicant to proceed with the validation tests. (4) Our local representative visit an accredited test house and arrange a contract for the validation tests. Test dates and fees are arranged. Validation testing against European requirements then commences. Once the products are compliant, the reports are written. The test reports are sent to the approvals body for final approval. The approvals body reviews the reports and issues the approval. Czech Republic, Romania, and Ukraine. (1) We have first to arrange to have a local representative work on our behalf in the country. (2) We prepare application documents, including translations, and forward them to our local distributor. (3) Next, we request the local representative to complete the application forms and forward the application documents to the regulatory approvals body. (For the Czech Republic, we must forward the Czech representative declaration form directly to the regulatory approvals body.) The approvals authority reviews the applications and authorizes the applicant to proceed with the type testing. (4) The applicant has its local representative visit an accredited test house and arrange a contract for testing. Test dates and fees are arranged. Testing to national requirements then commences. The national requirements are based upon European Telecommunications Standards Institute (ETSI) requirements. Once the products are compliant, the reports are written. The test reports are sent to the approvals body for final approval. The approvals body reviews the reports and issues the approval. Poland. (1) Local applicant prepares application documents, including translations, and forwards them to the approvals body. The approvals authority reviews the application and authorizes the applicant to proceed with the validation tests. (2) The applicant arranges with an accredited Polish test house a contract for the validation tests. Test dates and fees are arranged. Validation testing against European requirements then commences. Once the products are compliant, the reports are written. The test reports are sent to the
RE: Haz Loc Testing
Richard, One good preliminary source of reference is NEC Article 500.provides a breakdown of the various classifications of Haz Loc environmentsfrom there on in, it's a matter of selecting the appropriate product safety standard to meet the implementation as well as the equipment. Regards, Kaz Gawrzyjal kazimier_gawrzy...@dell.com -Original Message- From: richwo...@tycoint.com [mailto:richwo...@tycoint.com] Sent: Monday, February 04, 2002 10:00 AM To: emc-p...@majordomo.ieee.org Subject: Haz Loc Testing It would be appreciated if someone would provide me with a brief overview of the testing that is performed in order to classify electronic equipment for use in a hazardous location where fuel vapors are located. 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server. --- 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Haz Loc Testing
It would be appreciated if someone would provide me with a brief overview of the testing that is performed in order to classify electronic equipment for use in a hazardous location where fuel vapors are located. 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
Re: Pollution Degree vs. Creapage Distance
In a message dated 2/4/2002, Chris Maxwell writes: What would happen (assuming 60950) if you had AC on the component side of a board and SELV on the solder side. (assuming that any through holes were properly cleared out). Hi Chris: That usually works out fine, since the board is treated as solid insulation. The minimum thickness of solid insulation for supplementary or reinforced insulation is 0.4 mm (about .017). Most boards are much thicker than this. Joe Randolph Telecom Design Consultant Randolph Telecom, Inc. 781-721-2848 http://www.randolph-telecom.com
Notification form for Liechtenstein
Does anyone have an RTTE Notification form for Liechtenstein? 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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
telecom
Hi all I have lost my contact with the TREG group, can some one please tell me how to join again. Best regards, Kim Boll Jensen attachment: kimboll.vcf
RE: Pollution Degree vs. Creapage Distance
What about top and bottom of a board? What would happen (assuming 60950) if you had AC on the component side of a board and SELV on the solder side. (assuming that any through holes were properly cleared out). How acceptable is that? Chris Maxwell | Design Engineer - Optical Division email chris.maxw...@nettest.com | dir +1 315 266 5128 | fax +1 315 797 8024 NetTest | 6 Rhoads Drive, Utica, NY 13502 | USA web www.nettest.com | tel +1 315 797 4449 | -Original Message- From: John Juhasz [SMTP:jjuh...@fiberoptions.com] Sent: Friday, February 01, 2002 2:31 PM To: 'j...@aol.com'; rbus...@es.com Cc: emc-p...@majordomo.ieee.org Subject: RE: Pollution Degree vs. Creapage Distance Just some anecdotal info . . . There was an occassion at a previous employ where, due to a brief mental hiccup on the part of several folks, a printed circuit get fabricated with not enough spacing (damn close though to the required) between a mains trace and secondary in an internal layer for a card-cage backplane. The discussion that ensued with knowledgable folks at a well-known NRTL brought forth the following: a) Extra tests - thermal aging and thermal cycling tests need to be performed. Time consuming and expensive. b) Tight quality control on the part of the fabricator to ensure layer dimensions, adhesion, etc. Reduces flexbility to change vendors at a moment's notice. c) Routine electric strength testing by us. In short, they noted that while possible, it is difficult to maintain the pollution degree 1 in a printed circuit. Typically the pollution degree is applied to 'potted' items. Taking all into consideration it was easier for us (and less expensive) to respin the board. John Juhasz Fiber Options Bohemia, NY -Original Message- From: j...@aol.com [mailto:j...@aol.com] Sent: Friday, February 01, 2002 12:50 PM To: rbus...@es.com Cc: emc-p...@majordomo.ieee.org Subject: Re: Pollution Degree vs. Creapage Distance In a message dated 1/31/2002, Rick Busche writes: Does the application of a solder mask allow for a change from pollution degree 2 to pollution degree 1? I understand that conformal coating requires significant testing when used to reduce spacings per table 7, but in this case I am only asking if solder mask can be used to improve the pollution concern. Hi Rick: You do not mention which standard you are looking at, but if it is one of the IEC 950 derivatives there are some clauses that specifically address the questions you have. For example, in EN 60950, Third Edition, clause 2.10.5.3 addresses printed circuit boards, and clause 2.10.6 addresses solder mask. To the extent you can use inner layers, clause 2.10.5.3 should provide you some of the relief you seek. I have not ever tried to qualify a solder mask under clause 2.10.6 due to the burden of the additional tests, but you may want to consider it. Joe Randolph Telecom Design Consultant Randolph Telecom, Inc. 781-721-2848 http://www.randolph-telecom.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: Michael Garretson:pstc_ad...@garretson.org Dave Healddavehe...@mediaone.net For policy questions, send mail to: Richard Nute: ri...@ieee.org Jim Bacher: j.bac...@ieee.org All emc-pstc postings are archived and searchable on the web at: No longer online until our new server is brought online and the old messages are imported into the new server.
