In message <[email protected]>,
dated Mon, 3 Dec 2012, David <[email protected]> writes:
IEC 60601-1-2 requires surge, burst, and dropouts be done at the
maximum and minimum rated voltages for autoranging supplies. We
typically test at 90 Vac and 240 Vac. Many supplies I see now are
rated up to 264 Vac though. Is anyone testing at 264V? Are there
variacs out there to bump the input voltage, since our generator can't
go much above 240?
I doubt that 264 V is a 'rated voltage' - it is the upper limit of 240 V
supplies with a +10% allowance. Any product claimed to have a rated
voltage of 264 V would need to remain safe with 290.4 V input.
--
OOO - Own Opinions Only. See www.jmwa.demon.co.uk
The longer it takes to make a point, the more obtuse it proves to be.
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
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