In message
<31634bef4bce4fd3a71ef2d007459...@blupr02mb116.namprd02.prod.outlook.com>
, dated Mon, 13 Jan 2014, Brian Oconnell <oconne...@tamuracorp.com>
writes:
3. Do not ignore ratings or warnings on equipment labels. Do not
re-test to assume a 'reasonable' rating because you know better; you do
not know better - just do not do it.
Any NRTL etc. that does that does not understand what a rated value is,
especially a rated condition (for measurement) such as the supply
voltage. The manufacturer's statements of values of rated conditions are
unquestionable and not verifiable. Other rated values (stated by the
manufacturer as per definition), such as power consumption, must not be
replaced by other 'rated' values but may be questioned as a result of
measurements and other values substituted if the relevant standard
requires that.
For example, in IEC/EN 61000-3-2, it is allowed to avoid rated values
that coincide with step changes in requirements.
4. And never ignore direct advice from the mfr's compliance engineer.
Especially if it's 'Go forth and multiply'.
--
OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk
Nondum ex silvis sumus
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
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