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I am tying to figure out what this acutally means when all three of these terms are used together. In general I am trying to determine if there is a product specific standard for EMC compliance for the RTT&E and If that document wouldn't happen to be EN 300 386 Electromagnetic compatibilityand Radio spectrum Matters (ERM); Telecommunication network equipment; ElectroMagnetic Compatibility (EMC) requirements; Part 2: Product family standard When looking at the surge requirements in 61000-4-5, the Class for telecommunications products (lets say Class 3) requires higher surge levels than EN 300 386 (even the new working version). I have not gone through all the other test documents, but I can only guess that there are more differences. Is EN 300 386 the correct spec to use? best regards, jim stafford carrier access corporation boulder co. 80301 * This email may contain confidential and privileged material for the sole use of the intended recipient. Any unauthorized review, use or distribution by others is strictly prohibited. If you are not the intended recipient please contact the sender and delete all copies. * --- 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: Technical Documentation
In the R&TTE, under the conformity assessment procedure for internal production control (which is for the self declaration route) states "3. Where neither the manufacturer nor his authorised representative is established within the Community, the obligation to keep the technical documentation available is the responsibility of the person who places the product on the Community market" I interpreted this to be that the techinical documenation (not the "TCF") needs to be in the Community. However, conformity assessement for the "TCF" route with a notified body states "The manufacturer or his authorised representative established within the Community or the person responsible for placing the apparatus on the market must keep the file for a period ending at least 10 years after the last apparatus has been manufactured at the dsposal of the relevant national authorities of any Member States for inspection" There is no condition as whether the manufacturer must reside within the Community. I assume because the notified body is essentially maintaining it. It appears (of course I will have to read it several more times) that the location of the technical documentation(whether in the form of a "formal" tcf or a praf (courtesy of John Allen)) depends upon the confomity assessment procedure used. I have not gone back to the EMC or LVD directive to check this. I would be nice if all the directives where consistent in terminology as well as the documentation process. jim stafford carrier access corp. -Original Message- From: Dick Grobner [mailto:dick.grob...@medgraph.com] Sent: Thursday, March 02, 2000 8:58 AM To: 'Stafford, Jim' Cc: 'emc-p...@ieee.org' Subject: RE: Technical Documentation Within the Medical Device Directive, 93/42/EEC, Annex VII it states as: "The manufacturer must prepare the technical documentation described in Section 3 (TDF). The manufacturer or his authorized representative established within the community must make this documentation, including the declaration of conformity, available to the national authorities for inspection purposes for a period ending at least five years after the last product has been manufactured." It seems it can be either one. However - our Authorized Representative has requested a copy of our technical documentation file and we obliged. There is also a similar requirement in Article 10 of the EMC Directive 89/336/EEC. Hope this helps. -Original Message- From: Stafford, Jim [mailto:jstaff...@carrieraccess.com] Sent: Wednesday, March 01, 2000 1:50 PM To: IEEE EMC BB Subject: RE: Techinical Documentation a couple of questions to round out this thread. Let me start off with definitions TCF : document for "type" approval by competent body Technical documentation file (TDF): manufacturer's documentation that show conformity with essential requirements. 1) Can either of the these files mentioned above (which depends upon the certification route) be held by a foreign manufacturer (non-EC member) or do they need to be held within the community by authorized representative? 2) Does this vary depending upon the directive(s) to which conformity is being shown? jim stafford carrier access corporation jstaff...@carrieraccess.com --- 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
RE: Techinical Documentation
a couple of questions to round out this thread. Let me start off with definitions TCF : document for "type" approval by competent body Technical documentation file (TDF): manufacturer's documentation that show conformity with essential requirements. 1) Can either of the these files mentioned above (which depends upon the certification route) be held by a foreign manufacturer (non-EC member) or do they need to be held within the community by authorized representative? 2) Does this vary depending upon the directive(s) to which conformity is being shown? jim stafford carrier access corporation jstaff...@carrieraccess.com --- 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
[no subject]
Hi, Section 4.4.5 of UL1950 appears to require a fire enclosure for essentially anything that contains a printed circuit board assembly The only exclusion appears to the that if the printed circuit board assemblies are 1) supplied by a power source that is limited to a maxmimum of 15VA under normal operating conditions and after a single fault. AND 2)the printed circuit assembly contains only a TNV circuit. The enclosure requirements are then defined in section 4.4.6. We have a max of 94Vrms on our cards (obviously isolated from SELV circuits) with a power less that 15VA. I am assuming that this means that a fire enclosure is necessary based upon my interpretation of the exceptions above (TNV requirement). Unfortunately, we are also trying to optimize air flow through the enclosure meaning that any type of screen or baffles (or anything necessary to make this a fire enclosure) significantly reduces the air flow. Is it possible to design the enclosure and then have it tested to A.2 to detemine if we meet the requirements of a fire enclosure.? just a thought. it seems that a fan located in a "fire enclosure" (and therefore compliance not necessarily checked) may be just as hazardous to the spread of fire out of the top of the enclosure. Any input or advise would be appreciated. jim stafford Carrier Access Corporation 5395 Pearl Parkway Boulder, CO 80301 - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to ed.pr...@cubic.com, j...@gwmail.monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
