I read in !emc-pstc that Scott Proffitt <[email protected]> wrote (in <[email protected]>) about 'Battery Charger:Testing for CE Compliance', on Fri, 17 Aug 2001: >Stuart, > >I think that not only has our EMC discussions not fully answered your >original question, "what specific tests", but the discussions have completely >left product safety requirements to the wind.
The OP didn't ASK about safety. Maybe he already knows. > >Our company (a commercial test lab) tests many products of this sort for >compliance to EU standards for the CE Mark. We test for multiple manufacturers > > worldwide and we've all agreed on the requirements below. Astounding! > >But first the disclaimer: The exact test plan and standards we would follow >will depend on more product specifics than I currently have. But, let's >assume it's a desktop charger for batteries of the type used in cell phones, >radios, laptops, etc. that can be used in the home or office environment. > >You'll have both EMC requirements and Product Safety Requirements. > >You'll go to the EN50081-1/EN50082-1 and/or EN55024 for the EMC requirements. > They will point you to the following specific set of tests. Comapletely wrong, IMHO. A battery charger is NOT ITE. Battery chargers are dealt with in IEC/EN55014-1 and -2. NO OTHE EMC standards apply. > >EMC REQUIREMENTS: >Emissions to: EN55022 Class B >Immunity to: >EN61000-4-2 Electrostatic Discharge >EN61000-4-3 Radio Frequency Immunity (make sure to include ENV5024: Keyed >Carrier) >EN61000-4-4 Electrical Fast Transients >EN61000-4-5 Surge >EN61000-4-6 Conducted Immunity >EN61000-4-8 Power Frequency Magnetic Fields (probably could be omitted >for your charger) And how! >EN61000-4-11 Voltage Dips and Interruptions >EN61000-3-2 Harmonics >EN61000-3-3 Flicker These two are not immunity standards. >PRODUCT SAFETY REQUIREMENTS: >This is where it gets a little confusing. IEC/EN60950 for the product >safety of general ITE equipment Battery chargers are NOT ITE. >is a catch all here, but you may find >product specific standards more closely apply to your product and its >marketability. EN60335-2-29 is the non-harmonized AL:L ENs are 'harmonized standards'. They wouldn't be ENs if they weren't. >European standard specifical > > > >ly for battery chargers and has an international IEC standard relating, >but outside of the EU it is not nearly as recognized. The fact remains that IEC 60335-2-29 is the relevant *International Standard*. > >A great deciding factor is your end product, in your case, what is being >charged? Most manufacturers go with the EN60950 standard. Because certain test-houses give them very bad advice. Some try to force everything into IEC60950 because they can't test to any other standard. > It is harmonized >and allows easy crossing over to US safety approvals. Although some care >should be taken here as UL mandates UL1310 / CSA223 not UL1950. Precisely: battery chargers are NOT ITE, not even for UL. -- Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk Eat mink and be dreary! ------------------------------------------- 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: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
