Battery Requirement
Hi all, I was being asked a question regarding battery regulatory requirement for a portable analog amplifier speaker. This speaker has built in an internal chargeable battery. This battery is Lead Acid Battery. This speaker is being powered up, as well as battery charging, by an external AC/DC adaptor. The country of concern is as follows, Hong Kong Taiwan Japan Australia/New Zealand China. The EMI requirement are : Taiwan = BSMI, Australia/NZ = C-Tick, Japan =VCCI.. As I'm no expert on batteries, can anyone advice on the battery requirement for the above countries. Your reply is 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
Component Qualification - Thanks
Hi, Thanks to all that has responded to my questions and providing your precious advice. 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
Component Qualification
Group, Can anyone advice on any guide for checking/qualifying second source component, such as crystal, oscillator ferrite bead, mounted on product is still meeting the emission limits? We are manufacturer of pheripherals cards. Some card has crystal and/or oscillator for digital circuitry. Ferrite bead are used too. As these component will affect the final product EMI level, therefore some qualification/guide in terms of EMI must be considered when qualifying second source component. These components are used in lots of product that we made, it would be costly to perform scan for every model. Every product are tested and pass EMI with initial source components. Can we just made a comparison of the specification of the first source compnent with this second source? If yes, what are the crucial specs/information that must meet the first source component? For crystal/oscillator, beside the Frequency stability tolerance specs, what other item is crucial. For Ferrite bead, impedance curve, what other item is crucial. If happens that some specs are slightly out, e.g. 2nd source crystal are having 5PPM more than initla source crystal, Can we make use of the product passing margin, say 3dB, and do some calculation to confidently say that the second source component on the card is still EMI compliance. Likewise for oscillator and ferrite bead. If yes, could you advice on an example of such calculation. Many thanks in advance for the replies. 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
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
Re: EN60335-1
Mark, We are going to sell this speaker product to European market when bundle with the 230V version of AC/AC adaptor. Speaker bundle with AC/AC adaptor of 110/100V vresion will most likely be sold to US, Japan and other regions that requires this voltage. My main conern here is that should we accept the AC/AC adaptor compliance with EN60335-1 or request them to have it comply to EN60742 or EN60065 or EN60950 std. Regards Koh Mark Barry wrote: Dear Koh, The IEC 335-1 is the Standard of Household and Similiar Appliances, General Requirements. The IEC 742 pertains to Isolating transformers and Safety isolating transformers requirements. Both of these standards have equivalent EN standards which are EN 60335-1, and EN 60335:95. The standard noted below EN 60335-2-207 I as of now cannot find any reference too. The IEC and EN standard on 335 are still valid for the European market, so my question is what market are you selling into? Mark -Original Message- From: Koh Nai Ghee [mailto:koh...@cyberway.com.sg] Sent: Tuesday, August 01, 2000 11:00 AM To: EMC-PSTC Subject: EN60335-1 Dear EMC-PSTC, My company is currently designing a speaker system meant for ITE (that is PC) connection. The speaker requires external supply which the hardware team is looking into using a AC/AC adaptor instead of AC/DC adaptor. This AC/AC adaptor which steps down the 230Vac or 110Vac to the required low voltage for the speaker supply. A supplier of such AC/AC adaptor has said that their product complies to EN60335-1 standards. As I'm not familar with this standard, and need advice on the following doubts. 1) Is this EN60335-1 equivalent to IEC 742 ? 2) Heard from a colleague (from his source) that EN 60335-2-207 should be the standard ? 3) Was browing through the LVD Harmonised standard and unable to find this 60335-2-207. Could someone advice what is this standard ? 4) Is this supplier statement of the AC/AC adaptor conforms to EN60335-1 sufficient? Or should this AC/AC adaptor meant for household electrical appliance required to fulfil EN60335-2-207 standard ? 5) Does EN60335-1 applicable to AC-AC adapter only ? 6) Are this standards (EN60335-1 and EN60335-2-207) still valid? Or it has been obsolete/replaced? 7) Could this AC/AC adapter that complied with EN60335-1 be bundled with ITE product meant for Home or Office use? Looking forward to you advice. Thanks in advance. 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
EN 60335-1
Dear EMC-PSTC, I'm posting this message again. (had posted to wrong address). My company is currently designing a speaker system meant for ITE (that is PC) connection. The speaker requires external supply which the hardware team is looking into using a AC/AC adaptor instead of AC/DC adaptor. This AC/AC adaptor which steps down the 230Vac or 110Vac to the required low voltage for the speaker supply. A supplier of such AC/AC adaptor has said that their product complies to EN60335-1 standards. As I'm not familar with this standard, and need advice on the following doubts. 1) Is this EN60335-1 equivalent to IEC 742 ? 2) Heard from a colleague (from his source) that EN 60335-2-207 should be the standard ? 3) Was browing through the LVD Harmonised standard and unable to find this 60335-2-207. Could someone advice what is this standard ? 4) Is this supplier statement of the AC/AC adaptor conforms to EN60335-1 sufficient? Or should this AC/AC adaptor meant for household electrical appliance required to fulfil EN60335-2-207 standard ? 5) Does EN60335-1 applicable to AC-AC adapter only ? 6) Are this standards (EN60335-1 and EN60335-2-207) still valid? Or it has been obsolete/replaced? 7) Could this AC/AC adapter that complied with EN60335-1 be bundled with ITE product meant for Home or Office use? Looking forward to you advice. Thanks in advance. 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
EN60335-1
Dear EMC-PSTC, My company is currently designing a speaker system meant for ITE (that is PC) connection. The speaker requires external supply which the hardware team is looking into using a AC/AC adaptor instead of AC/DC adaptor. This AC/AC adaptor which steps down the 230Vac or 110Vac to the required low voltage for the speaker supply. A supplier of such AC/AC adaptor has said that their product complies to EN60335-1 standards. As I'm not familar with this standard, and need advice on the following doubts. 1) Is this EN60335-1 equivalent to IEC 742 ? 2) Heard from a colleague (from his source) that EN 60335-2-207 should be the standard ? 3) Was browing through the LVD Harmonised standard and unable to find this 60335-2-207. Could someone advice what is this standard ? 4) Is this supplier statement of the AC/AC adaptor conforms to EN60335-1 sufficient? Or should this AC/AC adaptor meant for household electrical appliance required to fulfil EN60335-2-207 standard ? 5) Does EN60335-1 applicable to AC-AC adapter only ? 6) Are this standards (EN60335-1 and EN60335-2-207) still valid? Or it has been obsolete/replaced? 7) Could this AC/AC adapter that complied with EN60335-1 be bundled with ITE product meant for Home or Office use? Looking forward to you advice. Thanks in advance. 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
Taiwan EMC Requirement
Hi Mike, You mention that Tests have to be conducted by appointed lab in Taiwan. Test report has to be in Chinese. User's manual has to be in Chinese. Application Fee : NT$3,000.00 for each model Certificate Fee : NT$300.00 for each model Application Fee for series of model: NT$2,000.00 / each model ( above fee does not include the fee charged by appointed lab) These application fee will be applied to which authority. Can you provide me with the contact/address of the authority. Thanks. Is there any regulatory document that we can refer regarding this EMC requirement? If there is no such available document avaliable, when will the 1st draft be release? Where can I obtain this documents? Koh Nai Ghee Creative Technology Ltd EMC Engineer
