RE: SI Unit for volume
I agree the gallons per minute rating for air compressors seems odd, but when one looks at adverts in the USA for compressors with storage tanks, the tanks themselves are sizes in gallons (30 Gal, 50 Gal. etc..). If the compressor flow is sized in gallons per minute, then the customer gets some idea of the rate of replenishment of the storage tank. This of course is all completely confounded by the fact that air is compressible and contains moisture - and a gallon (or cubic foot, cubic meter, etc..) at one pressure/temperature/moisture combination isn't the same mass as when at a different combination. Hence the introduction of the terms ACFM and SCFM (Actual and Standard Cubic Feet Per Minute) where the mass flow rates are represented at a specific set of conditions. It is a bit confusing, no matter what system of units you use (though I do find calculations in SI much simpler than US Customary). This link is a good one. http://www.cleandryair.com/scfm_vs__icfm_vs__acfm.htm Regards, Andrew Veit Systems Design Engineer MTS Systems Corp Ph: 919.677.2507 Fax: 919.677.2480 1001 Sheldon Drive Cary, NC 27513 -Original Message- From: Robert Wilson [mailto:robert_wil...@tirsys.com] Sent: Friday, June 21, 2002 12:27 PM To: richwo...@tycoint.com; emc-p...@majordomo.ieee.org Subject: RE: SI Unit for volume Only if it applies to fluid volume. If it applies to volume of a solid, then it is traditional to use cubic centimeters, or even m^3. The latter is a heck of a big volume, and sounds almost silly, but it is increasingly used. For example, in the latest Ferroxcube ferrite core catalogue, specific values of core hysteresis losses are given in KW per m^3 of ferrite material, even though these are the same units as W/cc. Liters are never mentioned or ever used in this context. Context seems to be important, so the units used should make sense when considering what the units apply to. A non-metric example of something that makes no sense is how American companies are now rating air compressors in gallons per minute. This is really absurd since all tools that are powered by compressed air sold in the US are rated in CFM, the gallons/minute rating is useless. Bob Wilson TIR Systems Ltd. Vancouver. -Original Message- From: richwo...@tycoint.com [mailto:richwo...@tycoint.com] Sent: June 21, 2002 5:28 AM To: emc-p...@majordomo.ieee.org Subject: SI Unit for volume When stating a cubic volume in SI units, is liters the correct unit. If not, what is the correct method of expression? 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: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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: davehe...@attbi.com 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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: TUV NRTL
Richard- We have obtained the c-TUV-us mark for our electromechanical material testing product line. We have shipped over 550 systems without any difficulties regarding the mark. I have, however, had to answer several questions from our field sales people about what the mark means. Once they understood OSHA's NRTL program, they were happy. Regards, Andrew Veit Systems Design Engineer MTS Systems Corp Ph: 919.677.2507 Fax: 919.677.2480 1001 Sheldon Drive Cary, NC 27513 -Original Message- From: richwo...@tycoint.com [mailto:richwo...@tycoint.com] Sent: Thursday, February 07, 2002 2:18 PM To: emc-p...@majordomo.ieee.org Subject: TUV NRTL TUV Rheinland of North America is a NRTL and is also accredited in Canada. I would like to hear from anyone using their NRTL and/or Canadian mark about any difficulties you have or have not had with acceptance of the mark by electrical inspectors. 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: davehe...@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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list --- 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: davehe...@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: http://ieeepstc.mindcruiser.com/ Click on browse and then emc-pstc mailing list
RE: radar
Why would someone want to take a car out of UK with the steering wheel on the wrong side? I can think of at least one good reason to take a RHD car out of the UK - its called the Lotus Super 7. There, its out in the open now. I am a British car nut. :) Rerards, Andrew Veit Systems Design Engineer MTS Systems Corp 1001 Sheldon Drive Cary, NC 27513 -Original Message- From: John Woodgate [mailto:j...@jmwa.demon.co.uk] Sent: Wednesday, January 09, 2002 3:35 PM To: emc-p...@majordomo.ieee.org Subject: Re: radar I read in !emc-pstc that John Shinn john.sh...@sanmina.com wrote (in 001f01c1992f$09f5c960$0b3d1...@hadco.comsanmina.com) about 'radar', on Wed, 9 Jan 2002: Why would someone want to take a car out of UK with the steering wheel on the wrong side? There are actually more *countries* where you drive on the left. Not more RHD cars, though. (No, I don't have the list of RHD countries, but it's on the web somewhere - everything is!) Besides, it is *undeniable* that a British car has the steering wheel on the right side. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk After swimming across the Hellespont, I felt like a Hero. --- 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: Thermocouple alternatives
Another alternative I have used with good success for measuring temperature in a product (motor control, incubator etc..) is the AD590 solid-state device from Analog Devices. From their website: For supply voltages between +4 V and +30 V the device acts as a high impedance, constant current regulator passing 1 µA/K: http://products.analog.com/products/info.asp?product=AD590 I have used it to measure winding temperature in linear motors by potting it with the windings in certain applications with good success. Its main benefit is that it is easier (cheaper) to create conditioning circuitry than a thermocouple - just give it a voltage differential between 4 and 30V, and it gives you a current output that's pretty linear with temperature. The package size is small (either TO-52, or F-2A), but not as small as a thermocouple. From the viewpoint of product compliance testing, however, it is hard to beat the simplicity of taping/gluing thermocouples onto the components in question and using a commercial DAQ system. The cost per channel acquired is also quite low for compliance testing. I too have experienced noise and offset issues with using thermocouples in high-noise environments (PWM-driven servo motors). Solutions included electrically isolating the junction from the motor case (ground) and using ferrites with several turns. Thanks for the tip about trying T-type instead of K-type thermocouples, I'll give it a shot next time. I just noticed that Omega Engineering, Inc. sells thermocouple connectors with built-in ferrite cores for EMI suppression; though its probably just easier to grab some of the orphaned ferrites you probably have laying around anyway... Thanks for everyone's input. -Andy Andrew Veit Systems Design Engineer MTS Systems Corp 1001 Sheldon Drive Cary, NC 27513 --- 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.
24 Mo. Warranty for the EU
Forum- I was just informed (without any further details given) that warranty periods for products shipped to Europe going to 24 months, mandated by law. Does someone know the specifics of this, or maybe point me in the right direction? I started digging on the europa.eu.int website, but have not found anything yet. Thanks- -Andy Andrew Veit Systems Design Engineer MTS Systems Corp Ph: 919.677.2507 Fax: 919.677.2480 1001 Sheldon Drive Cary, NC 27513 --- 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: Hi-Pot OK labels
Forum- We are currently retaining a paper copy of the manufacturing/QC checklist (includes hi-pot/ground-bond data) for each serial number shipped. I am curious to know how NRTL's view the use of an Hi-Pot OK ink stamp on the product in lieu of keeping a paper record? Or is this a common practice in the industry and not typically an issue? I like the idea because it solves several issues in one step: stickers falling off, visual proof of testing, reducing paperwork, and the chance of a paper record getting misplaced. Thanks- -Andy Andrew Veit Systems Design Engineer MTS Systems Corp Ph: 919.677.2507 Fax: 919.677.2480 1001 Sheldon Drive Cary, NC 27513 -Original Message- From: ron_du...@agilent.com [mailto:ron_du...@agilent.com] Sent: Thursday, November 29, 2001 2:34 PM To: Veit, Andy; ron_du...@agilent.com Subject: RE: Hi-Pot OK labels Hi Andy, I have had no problem with the NRTLs. Way don't you challenge the practice on the emc-pstc? Maybe there is some people from the NRTLs that can give a answer. The ink we use is Stadia 71-476BLK. Their number 800-765-6600. Ron Duffy Product Safety Engineer Design Validation Unit Agilent Technologies 1900 Garden of the Gods Road Colorado Springs, CO 80907-3483 719 590 2335 Tel 719 590 3033 Fax www.agilent.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.
RE: EMI sniffer goggles
Along the lines of EMI sensitive paper... There is such a thing for viewing magnetic fields, funnily enough. Its called Magnetic Viewing Paper and McMaster Carr has it for $14.22 for 27 square inches, p/n 5702K21. When the paper is laid over magnets, the paper shows the outline and shape of the field lines. Its handy for checking magnet assemblies for motors, and I have seen it used for this purpose. Another interesting paper is the new electronic paper being developed for electronic books. Embedded in the construction of the paper are millions of tiny spheres. Half of each sphere is black, half white. The spheres are aligned during the printing process with magnetic fields to show light or dark areas. There were photos and an article in the new issue of one of the free design rags that pile up on my desk. And don't forget that X-rays have been used to expose film for over 100 years. Sounds like we're just missing something sensitive to the portion of the spectrum between DC and X-rays! ;-) -Andy Andrew Veit Systems Design Engineer MTS Systems Corp Ph: 919.677.2507 Fax: 919.677.2480 1001 Sheldon Drive Cary, NC 27513 -Original Message- From: Doug McKean [mailto:dmck...@corp.auspex.com] Sent: Tuesday, August 07, 2001 5:18 PM To: EMC-PSTC Discussion Group Subject: Re: EMI sniffer goggles Okay, here's what I'd like to have ... Translucent material which is color responsive to emi. Similar to the material on the side of batteries which responds to voltage levels. A pane of translucent material which can be put on the end of a stick much like a pane of glass or a pane of of it which could be stood from a floor support next to the product and show a pattern of emi strengths by color. Or, a thin sheet of it much like plastic wrap which can be placed on a part of a product (such as a surface or edge) which would also respond to field strength. Or, I could rip off a sheet much like plastic wrap about a foot long and place over a pcb and instantly see the emi patterns produced by the board. Near or far field use. There'd be 2 versions of the material: one for electric fields which would respond with various shades of red and another for magnetic fields which would respond in various shades of blue. - Doug McKean --- 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: http://www.rcic.com/ click on Virtual Conference Hall, --- 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: http://www.rcic.com/ click on Virtual Conference Hall,
Certificate of Incoorporation???
Hello- Can someone explain to me what a Certificate of Incorporation is? One of our vendors wants to supply this in lieu of an EU Declaration of Conformity for CE compliance. Can someone enlighten me? Thanks again- -Andy Andrew Veit Systems Design Engineer MTS Systems Corp Ph: 919.677.2507 Fax: 919.677.2480 1001 Sheldon Drive Cary, NC 27513 --- 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: http://www.rcic.com/ click on Virtual Conference Hall,
Cable Drawing Standards
All- I have an unusual request for information. I was recently asked if there are standards for cable construction, and standards that describe how a desired construction is to be documented - i.e. preferred ways to terminate shields on a connector backshell and how to show this type of information as clearly and unambiguously as possible on cable drawings. I am guessing that many of you have probably come across this type of thing before, either in your current work or in a past life. Are there IEEE, ANSI, MIL or other standards that are commonly used as guides when creating cable assembly drawings/documentation? I have also been told that workmanship standards exist as well, but I have not been able to locate any yet. Thank you- -Andy Andrew Veit MTS Systems --- 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: http://www.rcic.com/ click on Virtual Conference Hall,
HP 1664A manual
I hope someone will be kind enough to help me. A while back, someone posted a link to a vendor of used test equipment. The vendor also had an extensive list of test equipment manuals available. In particular, I am looking for manuals for an HP 1664A Logic Analyzer. Thank You- -Andy Andrew Veit Systems Design Engineer MTS Systems Corp Ph: 919.677.2507 Fax: 919.677.2480 1001 Sheldon Drive Cary, NC 27513 --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
RE: Product Marking - new twist
Rich- Thanks for the detailed reply to Chris's questions. Is it possible that a piece of equipment with an NRTL listing can be disconnected by a local electrical inspector/electrician enforcing the NEC because that paticular NRTL is not approved in their jurisdiction? Doesn't the NRTL approval by OSHA take precedence over whether or not the local authorities accept the NRTL's listing? Thanks- -Andy Andrew Veit Systems Design Engineer MTS Systems Corp Ph: 919.677.2507 Fax: 919.677.2480 1001 Sheldon Drive Cary, NC 27513 -Original Message- From: Rich Nute [mailto:ri...@sdd.hp.com] Sent: Thursday, January 25, 2001 1:39 PM To: chris.maxw...@gnnettest.com Cc: emc-p...@majordomo.ieee.org Subject: Re: Product Marking - new twist Hi Chris: For instance, one of the messages says that the NEC gives an electrician the right to unplug an un-NRTL-marked piece of equipment. Another message states that the NRTL's mark is the proof of product safety. NRTL is a designation issued by OSHA. Approved is a designation used by the NEC. An NRTL may or may not be approved, depending on the jurisdiction, i.e., the authority enforcing the NEC. The authority enforcing the NEC can disconnect any equipment that is not approved. The electrician may be delegated (through licensing) to enforce the NEC, including disconnecting equipment that is not approved. 1. Are other certifications from other labs, such as A2LA and/or NVLAP allowed as long as there is a test report? Under the NEC, equipment must be approved. Approved is defined as acceptable to the jurisdiction enforcing the NEC. The jurisdiction decides approved on a lab-by-lab basis, and sometimes by standards or equipment type covered by that lab. Ultimately, it boils down to a certification mark from one of the labs accepted by the local jurisdiction. The test report is nothing more than a record maintained by the certification house for its own purposes of granting the right to use the mark on the equipment. Under the NEC (and OSHA), it is possible to install a non-certified product provided it is tested in place. In such a situation, the test report may be highly useful. (In Europe, the test report is essential, as Europe relies on the manufacturer proving the safety of the product.) 2. Does it matter what the voltage rating of the product is? No. Safety certification process almost always requires the product to be safe (and therefore certified) in accordance with the product's ratings, including its input voltage rating. Although rare, it is possible to certify a multi- voltage product for one voltage by one lab and another voltage by another lab. This is done by agreement between the submittor and the lab. In such a case, the voltage for which the certification applies is specifically related to the certification mark. 3. For products with external AC power supplies, would the NRTL mark need to be on the supply and the product? Or the supply only? The external ac power supply must be approved. The product may or may not need to be approved. If the rated input voltage exceeds 30 V rms or 42.4 V dc, then it must be approved (per the NEC). If the rated input voltage is less than 30 V rms or 42.4 V dc, then the NEC does not require it to be approved; it is a manufacturer's option whether to seek third- party certification. 4. Does it matter where the product is used? (home, farm, factory ...) The NEC applies to almost every location (except electric utility locations). Best regards, Rich --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
UL 3111-1 vs. UL 3101-1
All- Thank you for the responses, I was able to read the scopes at this link: http://ulstandardsinfonet.ul.com/scopes/ Interesting to note that it looks like UL split IEC 1010-1 into THREE standards: UL3101-1 STANDARD FOR SAFETY FOR ELECTRICAL EQUIPMENT FOR LABORATORY USE UL3111-1 STANDARD FOR SAFETY FOR ELECTRICAL MEASURING AND TEST EQUIPMENT UL3121-1 STANDARD FOR SAFETY FOR PROCESS CONTROL EQUIPMENT The scopes for all three are nearly identical, but there are numerous deviations listed before the contents page in each standard. The second deviation listed in UL3101-1 is to remove measurement and test and control from the scope, effectively limiting what follows to electrical equipment for laboratory use. Likewise, the deviations for UL3121-1 remove laboratory equipment and measurement and test equipment from the scope, and predictably, the deviations in UL3111-1 remove laboratory equipment and control from the scope. Thus allowing them to efficiently create 3 different standards from the text of one. Thanks again to all those that responded. -Andy Andrew Veit Systems Design Engineer MTS Systems Corp Ph: 919.677.2507 Fax: 919.677.2480 1001 Sheldon Drive Cary, NC 27513 --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
UL 3111-1 vs. UL 3101-1
Folks- Can someone give the scope of UL 3111-1? Or tell me how is it's scope differs from UL 3101-1? I have a copy of UL 3101-1, and it appears that it is very similar to IEC 1010-1, but I don't have a copy of UL 3111-1 (yet!). I read a message in the IEEE-PSTC archive where someone said that UL created the standards 3111-1 and 3101-1 from IEC 1010-1, but there were no further details about how the standards differ. Thank you- -Andy Veit Andrew Veit Systems Design Engineer MTS Systems Corp Ph: 919.677.2507 Fax: 919.677.2480 1001 Sheldon Drive Cary, NC 27513 --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Date of withdrawal
Hello- I am reviewing CE documentation for a product of ours that, until recently, was manufactured in France. I have been able to find the effective dates and dates of withdrawal for all standards listed in the support documentation I have, but I ran across something that has me totally stumped. I have a 1997 document from Bureau Veritas that documents conformance to Decree 92-767, specifically to Article R 233.83 of the Code du Travail. Decree 92-767 appears to be French legislation for the adoption of the Machinery Directive. It does not specify any reference EN documents. Can anyone tell me what Decree 92-767 was? And more importantly, if I can use it as a supporting document for EN 60204-1? My hunch is that I can't, but obviously I need some facts. EN 60204-1:1992 has a date of withdrawal of July 1, 2001 anyway. Thanks in advance- -Andy Andrew Veit Systems Design Engineer MTS Systems Corp Cary, NC --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
Double Retention
Hello all- Regarding double retention of a connection to secure both the conductor and insulation: I have been told that either double crimp terminals (fast-ons, ring, spade) must be used for insulated wire, or a secondary method must be used to secure the wire's insulation near the point of connection. I have not seen this described in the standards I have read or in the archived emails on the RCIC database - where should I look? At this point, I don't even know if this is a UL or a LVD thing. Thanks- -Andy Andrew Veit Systems Design Engineer MTS Systems Corp. Cary, NC --- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. 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: Jim Bacher: jim_bac...@mail.monarch.com Michael Garretson:pstc_ad...@garretson.org For policy questions, send mail to: Richard Nute: ri...@ieee.org
