Hi Raymond,
IEC Guide 112 is used for guidance in determining the appropriate standard to be used for multimedia equipment. It allows either standard to be used, if the equipment can be defined as multimedia. Only one standard must be applied (not both). I disagree that a TV can be evaluated under the 60950 standard, just because the power supply inside was evaluated to 60950 – this logic does not follow the scope of either standard. The appropriate course is to evaluate the TV per 60065 (this is clearly in the scope of 60065), which allows power supplies meeting the requirements of 60950 to be used without additional evaluation. If the TV can meet the definitions of multimedia equipment given by IEC Guide 112, I would always choose 60950 – personal preference, mainly, but also because 60950 would (most likely) not require humidity preconditioning prior to hi-pot testing, saving me time and expense. These standards are merging in the not-very-distant future, by the way. IEC Guide 112 is available for download from the IEC web store, and costs just a few bucks. Regards, Doug Massey Product Safety Engineer Advanced Compliance Solutions From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Sunday, January 18, 2004 12:21 AM To: [email protected] Subject: Safety standard for LCD/PDP TVs This type of products may have PC mode or not. Most of manufacturers are applying EN60950 safety standard rather than EN60065 safety standard for the primary reason of the SMPS available on the market that used for monitor. For TV without pc mode, if the product passes EN60950, can it be considered to comply with LVD 73/23/EEC. For TV with PC mode, both EN60065 and EN60950 have to be complied or only one is sufficient? Your advice is appreciated. Thanks and regards, Raymond Li OSA Ltd.
