Equipment must be marked to include 230Vac in the supply range. For a wide input range PSU it is permissable to put say 90-240Vac as 230Vac falls within this range. For selectable ranges then 230Vac must appear as one of those ranges although it is acceptable to say 100/120/220/230-240.
Section 4 of EN60065 says equipment must be tested at .9 and 1.06 times the RATED SUPPLY VOLTAGE, where RATED SUPPLY VOLTAGE is defined as the voltage for which the manufacturer has designed the apparatus. Thus if you spec/mark it to work at 240Vac then it will be tested at 254.4 and if you spec/mark it to work at 230Vac then I read it as only being tested at 243.8Vac. However the test house (part of a world wide group) we use say they use 230 +10% or 240 +6% which is approximately the same thing. Chris -----Original Message----- From: raymond...@dixonsasia.com.hk [mailto:raymond...@dixonsasia.com.hk] Sent: Wednesday, August 02, 2000 9:52 AM To: James, Chris Cc: emc-p...@ieee.org Subject: RE: Test voltage for products to the U.K. Chris, Thanks for your comments. Generally, the product is marked 230Vac in order to comply with harmonised standard but for the products to the U.K., they should be tested at 207Vac (-10% of 230Vac) and 254.4Vac (+6% of 240Vac). Is it a normal practise or agreed procedure used in all accredited laboratories in the U.K. and/or elsewhere in the world? Best regards, Raymond ========================================= "James, Chris" <c...@dolby.co.uk> on 01/08/2000 09:44:20 p To: Raymond Li/DixonsNotes@DixonsNotes, emc-p...@ieee.org cc: Subject: RE: Test voltage for products to the U.K. Spec on mains is 230 +/- 6% so as 240 falls within that range, then that is where the reference regard the UK staying at 240Vac came from. We used to see voltages several % above 240Vac in the past. In my particular area they used to stay spot on 240V most of the time. I note however that in the last 6 months the local voltage has dropped to 235Vac, although the generating board won't admit to having consciously made this change! We here continue to design for 264Vac max. Chris -----Original Message----- From: raymond...@dixonsasia.com.hk [mailto:raymond...@dixonsasia.com.hk] Sent: Tuesday, August 01, 2000 10:53 AM To: emc-p...@ieee.org Subject: Test voltage for products to the U.K. A few years ago, BEAMA or other similar body has issued a memo to public laboratories about testing voltage for products selling in the U.K. The memo says the U.K. mains is still 240Vac although the rated voltage is agreed to be 230Vac and the products have to be taken care the safety at 240Vac. Can anyone tell me where I can find a copy of this memo and if there is any updated version to replace this one. Thanks and regards, Raymond Li Dixons Asia Ltd. ------------------------------------------- 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 ------------------------------------------- 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
