Re: [PSES] SAFETTY FEATURES controlled by ....SOFTWARE
Dear Rich, As each and every time you are coming so ELEGANT, with very clear answers to the posted questions! THANK YOU for EXISTING for ALL of us ! As well, I already received some very useful advices from Barry and Brian. Thank you ALL! Sincerely, Constantin Bolintineanu P.Eng. From: Richard Nute [mailto:ri...@ieee.org] Sent: August-03-16 12:41 PM To: Bolintineanu, Constantin; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] SAFETTY FEATURES controlled by SOFTWARE I have virtually no experience in software safety. I'm a hardware guy. I suggest simulating failures in the sensors (hardware) that gives the software info about what state the battery is in. And, simulating failures of the hardware controlling the charging, discharging, and overcharging the battery. In this way, you have accounted for the worst-case failures of both the hardware and the software. Rich From: Bolintineanu, Constantin [mailto:cbolintine...@tycoint.com] Sent: Wednesday, August 03, 2016 7:33 AM To: EMC-PSTC@LISTSERV.IEEE.ORG<mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: [PSES] SAFETTY FEATURES controlled by SOFTWARE Dear Colleagues, I would like to kindly ask those who have an extensive experience regarding the above subject, to share their opinion about the following aspect: Having a circuit which is charging a battery, and having it controlled and protected by SOFTWARE ONLY from the point of view of CHARGING , DISCHARGING, OVERCHARGING, 1. How do you think that SINGLE FAULT CONDITIONS shall be applied? (without SOFTWARE working at all? Or by providing a fault on the component where the SOFTWARE is stored? OR BOTH 2. Which conditions do you think that shall be imposed to the software and/or to the memory in which it is stored? Any other suggestions/observations/comments are more than welcome. Sincerely, Constantin Bolintineanu P.Eng. This e-mail contains privileged and confidential information intended for the use of the addressees named above. If you are not the intended recipient of this e-mail, you are hereby notified that you must not disseminate, copy or take any action in respect of any information contained in it. If you have received this e-mail in error, please notify the sender immediately by e-mail and immediately destroy this e-mail and its attachments. - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
[PSES] SAFETTY FEATURES controlled by ....SOFTWARE
Dear Colleagues, I would like to kindly ask those who have an extensive experience regarding the above subject, to share their opinion about the following aspect: Having a circuit which is charging a battery, and having it controlled and protected by SOFTWARE ONLY from the point of view of CHARGING , DISCHARGING, OVERCHARGING, 1. How do you think that SINGLE FAULT CONDITIONS shall be applied? (without SOFTWARE working at all? Or by providing a fault on the component where the SOFTWARE is stored? OR BOTH 2. Which conditions do you think that shall be imposed to the software and/or to the memory in which it is stored? Any other suggestions/observations/comments are more than welcome. Sincerely, Constantin Bolintineanu P.Eng. This e-mail contains privileged and confidential information intended for the use of the addressees named above. If you are not the intended recipient of this e-mail, you are hereby notified that you must not disseminate, copy or take any action in respect of any information contained in it. If you have received this e-mail in error, please notify the sender immediately by e-mail and immediately destroy this e-mail and its attachments. - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
[PSES] CONTAMINATION CLASS
Dear Colleagues, Could you please be so kind and let me know which document provides the DEFINITION of the term: CONTAMINATION CLASS. The latest edition of the 60950 is still using the "pollution degree" terminology... Please accept in advance my many thanks for your help. Sincerely, Constantin Bolintineanu P.Eng / iNARTE Certified Product Safety Engineer / Tyco Security Products Tel: +1 905 760 3000 / 2568 3301 Langstaff Road / Concord, Ontario, L4K 4L2 / Canada cbolintine...@tycoint.com / www.tycosecurityproducts.com Access Control, Video, Location-Based Tracking and Intrusion. UNIFIED. CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information or information otherwise protected by law. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. Any applicable rights to privilege have not been waived. - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
Re: [PSES] 60950-1 durability test solvent
Thank you Anthony. You are 100% right with everything. I apologize. I have no further comments regarding your ebay posting. Sincerely, Constantin Bolintineanu P.Eng / iNARTE Certified Product Safety Engineer / Tyco Security Products Tel: +1 905 760 3000 / 2568 3301 Langstaff Road / Concord, Ontario, L4K 4L2 / Canada cbolintine...@tycoint.com / www.tycosecurityproducts.com Access Control, Video, Location-Based Tracking and Intrusion. UNIFIED. CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information or information otherwise protected by law. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. Any applicable rights to privilege have not been waived. From: Anthony Thomson [mailto:ton...@europe.com] Sent: March-27-13 8:42 AM To: Bolintineanu, Constantin; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] 60950-1 durability test solvent Constantine, You should read the original post... "Is there a product I can buy at the hardware store that is roughly equivalent to the hexane specified in durability test". Then you should read the eBay listing and not just look at the pictures. The seller is quite clear that the picture shows an e x a m p l e (Methyl Alcohol) of how the n-hexanne will be packaged. The listing then cites the CAS No. of the n-hexane which will be supplied which is indeed 110-54-3. As you say, you have to be careful when it comes to precision and accuracy ;-) Regards, T - Original Message ----- From: Bolintineanu, Constantin Sent: 03/27/13 11:38 AM To: Anthony Thomson, EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] 60950-1 durability test solvent Anthony, IF we are following the CAS Number, then, this ebay product is definitely not the one specified within the 60950-1 Standard. As per cas.org, a CAS Nr: - Is a unique numeric identifier - Designates only one substance - Has no chemical significance - Is a link to a wealth of information about a specific chemical substance 60950 specifies clearly CAS Nr. 110-54-3; According to the required and specified spec, it is not sufficient to use any n-hexane. IF we would like to test with any n-hexane then we do not need any Standard, and as Rich specified, there will be no precision nor accuracy involved regarding this test. Cheap stuff, similar results: inconclusive. Sincerely, Constantin Bolintineanu P.Eng / iNARTE Certified Product Safety Engineer / Tyco Security Products Tel: +1 905 760 3000 / 2568 3301 Langstaff Road / Concord, Ontario, L4K 4L2 / Canada From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Anthony Thomson Sent: March-27-13 5:27 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] 60950-1 durability test solvent eBay - http://www.ebay.com/sch/n-hexane T - Original Message - From: Gelfand, David Sent: 03/26/13 06:32 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] 60950-1 durability test solvent Is there a product I can buy at the hardware store that is roughly equivalent to the hexane specified in durability test: " The petroleum spirit to be used for the test is aliphatic solvent hexane having a maximum aromatics content of 0,1 % by volume, a kauributenol value of 29, an initial boiling point of approximately 65 °C, a dry point of approximately 69 °C and a mass per unit volume of approximately 0,7 kg/l." Thanks in advance. David Kontron Canada Inc. - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher David Heald - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can
Re: [PSES] 60950-1 durability test solvent
John you are right! (my opinion only!). Those are not the required substances.
Those 2 white bottles are not the right stuff even if the seller wants to
make-up the labels, misleading by "flagging" the correct CAS number.
It is e-bay where we may find lots of things which are useful for others.
Sincerely,
Constantin Bolintineanu P.Eng / iNARTE Certified Product Safety Engineer /
Tyco Security Products
Tel: +1 905 760 3000 / 2568
3301 Langstaff Road / Concord, Ontario, L4K 4L2 / Canada
cbolintine...@tycoint.com / www.tycosecurityproducts.com
Access Control, Video, Location-Based Tracking and Intrusion. UNIFIED.
CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is for
the sole use of the intended recipient(s) and may contain confidential and
privileged information or information otherwise protected by law. Any
unauthorized review, use, disclosure or distribution is prohibited. If you are
not the intended recipient, please contact the sender by reply e-mail and
destroy all copies of the original message. Any applicable rights to privilege
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-Original Message-
From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John Woodgate
Sent: March-27-13 8:26 AM
To: EMC-PSTC@LISTSERV.IEEE.ORG
Subject: Re: [PSES] 60950-1 durability test solvent
In message
<3d061464a0c0bb438a8712afce9013831d92e...@tor1exc01.americas.tsp.ad>,
dated Wed, 27 Mar 2013, "Bolintineanu, Constantin"
writes:
>The one that I was able to read was 79-01-6
On one of the bottles? I already pointed out that two of them are labelled
'methyl alcohol'; the pictures are just to show the style of product.
I suppose you can read CAS 709-01-06 on the bottle with a blurred label.
That substance is trichlorethene ('trichlorethylene'), not n-hexane at all.
--
OOO - Own Opinions Only. See www.jmwa.demon.co.uk SHOCK HORROR! Dinosaur-like
DNA found in chicken and turkey meals John Woodgate, J M Woodgate and
Associates, Rayleigh, Essex UK
-
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Re: [PSES] 60950-1 durability test solvent
I would like to be more specific: I did not consider that Anthony specified the WHITE bottles. Those (in my opinion) are NOT n-hexane; Those (in my opinion) are mislabelled; The seller affixed a number [IF I was able to read it properly CAN number (?)], and IF I will use that CAN number as a CAS number for identification, 67-56-1 I will find that in that bottle could be: CAS Registry Number: 67-56-1 CA Index Name: Methanol -- Synonyms: *Bieleski's solution *Carbinol *metanol *Methanol *Methanol cluster *Methyl alcohol *Methyl hydroxide *Methylol *Monohydroxymethane *NSC 85232 *Solutions, Bieleski's *UN 1230 *UN 1230 *WOOD ALCOHOL The seller specifies that in those WHITE (?) bottles is a chemical with CAS 110-54-3...I will never buy that stuff... Is this Methanol considered acceptable for testing as per the Clause 1.7.11 of 60950-1 series of Standards? And if the answer is YES, Does it lead to the same results when the test is performed with the CAS No 110-54-3 ? I would like to find any documented opinion which will help me to better understand WHY in time some labels are offering to the end-user frustrations when they want to identify parts for a remote control, etc. Sincerely, Constantin Bolintineanu P.Eng / iNARTE Certified Product Safety Engineer / Tyco Security Products Tel: +1 905 760 3000 / 2568 3301 Langstaff Road / Concord, Ontario, L4K 4L2 / Canada cbolintine...@tycoint.com / www.tycosecurityproducts.com Access Control, Video, Location-Based Tracking and Intrusion. UNIFIED. CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information or information otherwise protected by law. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. Any applicable rights to privilege have not been waived. -Original Message- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John Woodgate Sent: March-27-13 7:59 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] 60950-1 durability test solvent In message <3d061464a0c0bb438a8712afce9013831d92d...@tor1exc01.americas.tsp.ad>, dated Wed, 27 Mar 2013, "Bolintineanu, Constantin" writes: > >IF we are following the CAS Number, then, this ebay product is >definitely not the one specified within the 60950-1 Standard. I didn't see any CAS number on the ebay product, but it quacks like a duck Anyway, one can enquire about the CAS number before buying. -- OOO - Own Opinions Only. See www.jmwa.demon.co.uk SHOCK HORROR! Dinosaur-like DNA found in chicken and turkey meals John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald: - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
Re: [PSES] 60950-1 durability test solvent
The one that I was able to read was 79-01-6 Sincerely, Constantin Bolintineanu P.Eng / iNARTE Certified Product Safety Engineer / Tyco Security Products Tel: +1 905 760 3000 / 2568 3301 Langstaff Road / Concord, Ontario, L4K 4L2 / Canada cbolintine...@tycoint.com / www.tycosecurityproducts.com Access Control, Video, Location-Based Tracking and Intrusion. UNIFIED. CONFIDENTIALITY NOTICE: This e-mail message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information or information otherwise protected by law. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply e-mail and destroy all copies of the original message. Any applicable rights to privilege have not been waived. -Original Message- From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of John Woodgate Sent: March-27-13 7:59 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] 60950-1 durability test solvent In message <3d061464a0c0bb438a8712afce9013831d92d...@tor1exc01.americas.tsp.ad>, dated Wed, 27 Mar 2013, "Bolintineanu, Constantin" writes: > >IF we are following the CAS Number, then, this ebay product is >definitely not the one specified within the 60950-1 Standard. I didn't see any CAS number on the ebay product, but it quacks like a duck Anyway, one can enquire about the CAS number before buying. -- OOO - Own Opinions Only. See www.jmwa.demon.co.uk SHOCK HORROR! Dinosaur-like DNA found in chicken and turkey meals John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald: - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
Re: [PSES] 60950-1 durability test solvent
Anthony, IF we are following the CAS Number, then, this ebay product is definitely not the one specified within the 60950-1 Standard. As per cas.org, a CAS Nr: - Is a unique numeric identifier - Designates only one substance - Has no chemical significance - Is a link to a wealth of information about a specific chemical substance 60950 specifies clearly CAS Nr. 110-54-3; According to the required and specified spec, it is not sufficient to use any n-hexane. IF we would like to test with any n-hexane then we do not need any Standard, and as Rich specified, there will be no precision nor accuracy involved regarding this test. Cheap stuff, similar results: inconclusive. Sincerely, Constantin Bolintineanu P.Eng / iNARTE Certified Product Safety Engineer / Tyco Security Products Tel: +1 905 760 3000 / 2568 3301 Langstaff Road / Concord, Ontario, L4K 4L2 / Canada From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Anthony Thomson Sent: March-27-13 5:27 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] 60950-1 durability test solvent eBay - http://www.ebay.com/sch/n-hexane T - Original Message - From: Gelfand, David Sent: 03/26/13 06:32 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: [PSES] 60950-1 durability test solvent Is there a product I can buy at the hardware store that is roughly equivalent to the hexane specified in durability test: " The petroleum spirit to be used for the test is aliphatic solvent hexane having a maximum aromatics content of 0,1 % by volume, a kauributenol value of 29, an initial boiling point of approximately 65 °C, a dry point of approximately 69 °C and a mass per unit volume of approximately 0,7 kg/l." Thanks in advance. David Kontron Canada Inc. - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher David Heald - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
Re: [PSES] Question on input test per IEC60950-1 second edition
In my opinion, the Standard gives the correct answer: see 1.3.1 "The requirements detailed in this Standard shall be applied ONLY IF SAFETY IS INVOLVED..." Respectfully yours, Constantin Constantin Bolintineanu P.Eng. iNARTE Certified Product Safety Engineer Digital Security Controls (DSC) a Division of Tyco Safety Products Canada 3301 LANGSTAFF Road, L4K 4L2 CONCORD, ONTARIO, CANADA e-mail: cbolintine...@dsc.com Tel: 905 760 3000 ext 2568 Fax: 905 760 3020 Before printing this e-mail think if it is necessary DISCLAIMER: This e-mail message may contain privileged or confidential information. If you are not the intended recipient, you may not disclose, use, disseminate, distribute, copy or rely upon this message or attachment in any way. If you received this e-mail message in error, please return the message and its attachments to the sender, and then please delete from your system without copying or forwarding it or call TSPC at 905 760 3000 extension 2568 so that the sender's address records can be corrected. From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of sudhakar wasnik Sent: June-09-12 1:54 PM To: emc-p...@ieee.org Subject: Question on input test per IEC60950-1 second edition Hi Guys, Question on Input test? Do you need to conduct input test on the laptop, MP3 players, cell phones etc? If yes, why and If no Why? Regards, Sudhakar - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher David Heald - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas Mike Cantwell For policy questions, send mail to: Jim Bacher: David Heald:
RE: Requirements for Power On/OFF Switch...US and EU Europe
With the assumption that the subject equipment falls under the 60950 series of Standards, then the following types of disconnect devices are permitted: - the plug on the power supply cord; - a mains plug that is part of DIRECT PLUG-IN EQUIPMENT; - an appliance coupler; - isolating switches; - circuit breakers; - any equivalent device. Where a plug on the power supply cord is used as the disconnect device, the installation instructions shall state that: the socket-outlet shall be installed near the equipment and shall be easily accessible. The operating instructions, and the installation instructions for PLUGGABLE EQUIPMENT intended for USER installation, shall be made available to the USER. Respectfully yours, Constantin Constantin Bolintineanu P.Eng. TYCO SAFETY PRODUCTS CANADA 3301 LANGSTAFF Road, L4K 4L2 CONCORD, ONTARIO, CANADA e-mail: cbolintine...@tycoint.com Tel: 905 760 3000 ext 2568 Fax: 905 760 3020 DISCLAIMER: This e-mail message may contain privileged or confidential information. If you are not the intended recipient, you may not disclose, use, disseminate, distribute, copy or rely upon this message or attachment in any way. If you received this e-mail message in error, please return the message and its attachments to the sender, and then please delete from your system without copying or forwarding it or call TSPC at 905 760 3000 extension 2568 so that the sender's address records can be corrected. From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Christine Rodham Sent: Monday, July 21, 2008 2:18 PM To: emc-p...@ieee.org Subject: Requirements for Power On/OFF Switch...US and EU Europe [BCC][ffrom][spf] Hi List Members, We purchased a networking product that will reside in the Customer Premise ( CPE) environment. ( FCC class A in the US ) We noticed that the unit DOES NOT have a power switch or a mains disconnect. In order to turn the unit off you have to pull out the plug >from the unit or the wall. This units runs on 120V- 220V auto-range. Does this violate any safety rules in the US or Europe? The unit has an NRTL mark on it but is seems a little bizarre that it does not have a way of disconnecting power other than pulling out the plug. Anyone have any clarification on this.. Thank you! Christine Rodham - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald: emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
THERMOCOUPLE WELDER
Dear Colleagues, I would like to kindly ask you in regard to the THERMOCOUPLES WELDERS that you are using. Information regarding the suppliers, and best performances and reliability, with not to many headaches are very much appreciated. I must admit that what we found is not an approved type... I would prefer to understand which is the best solution without using too many consumables. Please accept in advance my many thanks for your replies. Respectfully yours, Constantin Constantin Bolintineanu P.Eng. TYCO SAFETY PRODUCTS CANADA 3301 LANGSTAFF Road, L4K 4L2 CONCORD, ONTARIO, CANADA e-mail: cbolintine...@tycoint.com Tel: 905 760 3000 ext 2568 Fax: 905 760 3020 DISCLAIMER: This e-mail message may contain privileged or confidential information. If you are not the intended recipient, you may not disclose, use, disseminate, distribute, copy or rely upon this message or attachment in any way. If you received this e-mail message in error, please return the message and its attachments to the sender, and then please delete from your system without copying or forwarding it or call TSPC at 905 760 3000 extension 2568 so that the sender's address records can be corrected. - This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list.Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to emc-p...@ieee.org Instructions: http://listserv.ieee.org/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas emcp...@ptcnh.net Mike Cantwell mcantw...@ieee.org For policy questions, send mail to: Jim Bacher: j.bac...@ieee.org David Heald:emc-p...@daveheald.com All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
Electrical Safety regulations regarding PLUGS for DIRECT PLUG-IN TRANSGFORMERS in CHINA
Dear Colleagues, I tried to find out on several channels information regarding the TYPE of ACCEPTABLE PLUGS to be used within DIRECT PLUG-IN TRANSFORMERS placed on the CHINESE MARKET. I was not able to find at least an answer. I searched on Internet and the results that I found are not relevant; I have the following questions: The RATINGS of that DIRECT PLUG-IN transformer are: PRIMARY 220-230V ac, SECONDARY 16Vac /20VA The QUESTIONS are: 1. Which is the MOST COMMON PLUG CONFIGURATION IN CHINA ? (ROUND pins, OR FLAT, or "Aus-asia" configuration )? DETAILS regarding this aspect (geometry, size, insulation, etc. will be very much appreciated, INCLUDING the NAME of the APPLICABLE REGULATORY DOCUMENT (Standard) that covers the DIRECT PLUG-IN TRANSFORMERS in China). 2. IF there an English version of that Standard, please be so kind and advise me from where we are able to buy it. 3. Are there in China any Standards for the INPUT PLUGS ? (e.g.: in Australia they have a specific Standard that covers Approval and test specification-Plugs and socket-outlets, AS/NZS 3112:2004) 4. Any available specification it will be very much appreciated if you can share with me, pictures, links, etc. 5. IS IT MANDATORY for a such DIRECT PLUG-IN TRANSFORMER to have the CCC APPROVAL or not ? In my engineering judgement the answer is YES, but I received some feedback that due to the OUTPUT (?!?) voltage (less than 35 Volts) it is not necessary to be CCC Approved...??!? Your feedback and advises are very much appreciated. Respectfully yours, Constantin Constantin Bolintineanu P.Eng. TYCO SAFETY PRODUCTS CANADA 3301 LANGSTAFF Road, L4K 4L2 CONCORD, ONTARIO, CANADA e-mail: cbolintine...@tycoint.com Tel: 905 760 3000 ext 2568 Fax: 905 760 3020 DISCLAIMER: This e-mail message may contain privileged or confidential information. If you are not the intended recipient, you may not disclose, use, disseminate, distribute, copy or rely upon this message or attachment in any way. If you received this e-mail message in error, please return the message and its attachments to the sender, and then please delete from your system without copying or forwarding it or call TSPC at 905 760 3000 extension 2568 so that the sender's address records can be corrected. From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Aldous, Scott Sent: Friday, May 02, 2008 10:44 AM To: Curt McNamara; ted.eck...@apcc.com Cc: emc-p...@ieee.org Subject: RE: Safety regulations [text][heur][BCC][ffrom][spf] Curt writes: To phrase this another way: someone else's label (the power supply manufacturer) is not a valid indicator that a product has a safety approval. If I understand the original question correctly, this is what it really comes down to. The power supply may be Listed by itself, but that does not mean that the end product using it is then somehow covered by the power supply Listing, even if no additional hazards are present in the end product outside the power supply. If there is a requirement for the end product to be Listed, then it must be evaluated separately. Allowing the power supply Listing mark to be visible in the end product in such a way that the customer is led to believe that this mark covers the end product is a no-no. Scott Aldous Compliance Engineer Advanced Energy Tel: 970-407-6872 Fax: 970-407-5872 From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Curt McNamara Sent: Friday, May 02, 2008 8:38 AM To: ted.eck...@apcc.com Cc: emc-p...@ieee.org Subject: Re: Safety regulations Wow! The chart shows 2A at 45V for Class II, or 100VA as you note. This is a lot of energy to me, and can certainly result in ignition given the correct conditions. I note that the standard also shows voltages above SELV as permissible. The implication in the original question was information technology (as far as I could tell). Even with approved supplies and only SELV levels safety investigations are still required. Some examples: Flammable material (the laptop plastic case). Fault (5V to ground) causes part to fall off board through vent hole, igniting material on table. There are lots of ways to design unsafe products using only SELV (not even considering Class II). If your product needs a safety approval then an investigation is required. To phrase this another way: someone else's label (the power supply manufacturer) is not a valid indicator that a product has a safety approval. Curt in real life Curt McNamara, P.E. // principal electrical engineer Logic Product Development 411 Washington Ave. N. Suite 400 Minneapolis, MN 55401 T // 612.436.5178 F // 612.672.9489 _www.logicpd.com_ http://www.logicpd.com/> On May 2, 2008, at 7:24 AM, ted.eck...@apcc.com wrote: The output of a Class 2
