The short answer is: IEC standards are for international use. Those for european use are EN standards. Therefore, IEC 60601-1-2 is for global use.
Regards Vagn Sylvest DELTA Electronics Testing >>> Patrick Lawler <[email protected]> 980616-02.16 >>> IEC601-1-2 (Medical EMC requirements) has a section discussing the voltage dip and interrupt requirements. In the Committee Draft dated 1998-03-06, it's section 36.202.5. It says the test method in IEC61000-4-11 shall apply with modifications, and goes on to detail them. What caught my eye was modification 2: "For equipment and/or systems having multiple voltage settings for power input, the test shall be performed at EACH RATED INPUT VOLTAGE. For equipment and/or systems having, for power input, autoranging voltage capability, the test shall be performed at the MINIMUM RATED INPUT VOLTAGE." (emphasis added by me) Our power supply products are typical wide-range units, with AC input voltage specifications of 90-264VAC, and would have little problem meeting the requirements at 230VAC. However, meeting voltage dip and interrupt requirements at 90VAC would require a redesign. How did this 'all rated voltages' clause get in the spec? I was under the impression that all EMC testing was done at 230VAC, being the european norm? -- Patrick Lawler [email protected]
