RE: Logo for Ventilation Hole
Koh, In my opinion, this is a totally unacceptable situation. Label or not, some of the units sold will eventually encounter a situation where the ventilation hole gets blocked. Since the design is nearly complete, your choices will be limited. I think that you must include an overtemperature shutdown device such as a bimetal, thermal fuse, or PTC thermistor. All coffemakers, portable hair dryers, and similar devices include them. If you do not, you run the risk of major lawsuits, especially in the U.S. market. If a child becomes injured the financial penalties could be massive. Scott Lacey -Original Message- From: owner-emc-p...@ieee.org [mailto:owner-emc-p...@ieee.org]On Behalf Of Koh Nai Ghee Sent: Monday, September 04, 2000 9:31 AM To: EMC-PSTC Subject: Logo for Ventilation Hole Hi EMC-PSTC group, A team within my company is currently designing a amplifier speaker unit. Due to the current drawn is high and heat are dissipated. Therefore the encloseure need some ventilation hole. Unfortunately, till the very late stage of the design cycle, they found out if this ventilation hole was blocked, it will cause the plastic enclosure to melt. A question was asked, Is there a safety label/logo that we can affixed onto the plastic enclosure so that to tell user not to block this enclosure? (Or not to place it in a area where the ventilation will be blocked.) I've never seen such label or logo before. Has anyone out there seen such type of label/logo? Any advice from the group would be much appreciated. Regards Koh --- 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
ADSL system. FCC requirements
Dear Group, We have ADSL system comprising subscriber unit (SU) and Central Office unit (COU). Please advise 1. Do we need FCC68 for COU? It is connected in parallel with the existing POTS service and theoretically can affect parameters such as REN and noise in POTS bandwidth. 2. I believe that FCC15 is covered by Bellcore CR-1089 EMC tests, which we did. Do we still need a statement of compliance with FCC15 on COU (for custom or the like). 3. Is FCC15 is applicable to CO units at all (say we did not have Bellcore report)? Your prompt response is much appreciated. Peter Merguerian Managing Director Product Testing Division I.T.L. (Product Testing) Ltd. Hacharoshet 26, POB 211 Or Yehuda 60251, Israel Tel: 972-3-5339022 Fax: 972-3-5339019 e-mail: pmerguer...@itl.co.il website: http://www.itl.co.il TO LEARN ABOUT AUSTRALIAN AND NEW ZEALAND REQUIREMENTS, CONTACT ME AT THE EARLIEST STAGES OF YOUR DESIGN; REQUIREMENTS CAN BE TRICKY! --- 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: Logo for Ventilation Hole
Koh Beware, the 6th edition of IEC60065, clause 4.3.10 calls for a fault conditions test whereby each group of ventilation openings is blocked in turn. Groups of openings are defined as 1) those on the top and 2) those on the sides and back excluding the front. It sounds like your product would fail this test. Regards Chris Colgan EMC & Safety TAG McLaren Audio Ltd mailto:chris.col...@tagmclarenaudio.com > -Original Message- > From: Koh Nai Ghee [SMTP:koh...@cyberway.com.sg] > Sent: 04 September 2000 14:31 > To: EMC-PSTC > Subject: Logo for Ventilation Hole > > > Hi EMC-PSTC group, > > A team within my company is currently designing a amplifier speaker > unit. > Due to the current drawn is high and heat are dissipated. > Therefore the encloseure need some ventilation hole. > > Unfortunately, till the very late stage of the design cycle, they found > out if this ventilation hole was blocked, it will cause the plastic > enclosure to melt. > > A question was asked, > > Is there a safety label/logo that we can affixed onto the plastic > enclosure so that to tell user not to block this enclosure? > (Or not to place it in a area where the ventilation will be blocked.) > > I've never seen such label or logo before. > Has anyone out there seen such type of label/logo? > Any advice from the group would be much appreciated. > > Regards > Koh > > > > --- > 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 > = Authorised on 09/04/00 at 15:42:22; code 37f48bf37C637827. ** Please visit us at www.tagmclarenaudio.com ** The contents of this E-mail are confidential and for the exclusive use of the intended recipient. If you receive this E-mail in error, please delete it from your system immediately and notify us either by E-mail, telephone or fax. You should not copy, forward or otherwise disclose the content of the E-mail. TAG McLaren Audio Ltd The Summit, 11 Latham Road Huntingdon, Cambs, PE29 6ZU Telephone : 01480 415600 (+44 1480 415600) Facsimile : 01480 52159 (+44 1480 52159) ** Please visit us at www.tagmclarenaudio.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
Logo for Ventilation Hole
Hi EMC-PSTC group, A team within my company is currently designing a amplifier speaker unit. Due to the current drawn is high and heat are dissipated. Therefore the encloseure need some ventilation hole. Unfortunately, till the very late stage of the design cycle, they found out if this ventilation hole was blocked, it will cause the plastic enclosure to melt. A question was asked, Is there a safety label/logo that we can affixed onto the plastic enclosure so that to tell user not to block this enclosure? (Or not to place it in a area where the ventilation will be blocked.) I've never seen such label or logo before. Has anyone out there seen such type of label/logo? Any advice from the group would be much appreciated. Regards Koh --- 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
