Hello! I apologize for the extension of this message.
The discussion about EN 60065/EN 60950 (IEC 65/IEC 950) has brought to me an old question I could not find a good answer. Mainly, we have three standards for electronic equipment: IEC 65, IEC 950 and IEC 1010-1. Each one has a different scope but, very frequently, you can find equipment on the border. For example, is an specific computer for measurement, processing and edition of sound or video signals, a measurement instrument (IEC 1010-1), a computer (IEC 950) or and audio and video equipment (IEC 65)? Somebody can refuse the IEC 65 because that equipment is not a household or similar, but it is possible to buy such equipment for your house if you wish (and you have money). Nowadays, it is very easy to find many other cases in which you are on the border. I had no problem if those standards were very similar, but it is not true. For example, IEC 950 has a very hard restriction about flammability of any isolation material inside the equipment, IEC 1010-1 only requires the VICAT test in a few cases and IEC 65 has no concrete requirement. Another example: IEC 950 has no humidity treatment before the electric strength test (except for hygroscope materials) and the other standards yes. And also .... Results and cost for manufacturers could be very different. I can understand that particular hazards of an antenna input is only covered by IEC 65, but it is not enough to justify many other differences. It looks like standards redactors are different people with no or very reduced harmonization between them. In my opinion, it should be only one standard with several "parts-two" for particular requirement in different cases. The system we have now reduces the reliance of manufacturers in the goodness of standards, and I understand them. I'd like very much to know your opinion. Maybe, some one knows the answer to my old questions. Thank you very much for your attention and for your comments. ======================================================== Juan P. Pena / Electrical Safety Area Company: CETECOM, S.A. (http://www.pta.es/ing/empresas/cetecom.html) e-mail: [email protected] The opinions expressed are personal, not necessarily of my company. ========================================================
