In message 
<A59E0E4F06B34F15BB3E3AA734C90083@ProductSafetyConsultingInc.local>, 
dated Thu, 3 Sep 2009, John Allen <[email protected]> writes:

>If we have a potted LED fixture that is supplied by a Class 2 power 
>supply, can it be rated IP68 based on design vs testing?  Even if it is 
>not potted such that low voltage parts are accessible, can it be rated 
>IP68?  The version of IEC60529 we have does not have a lower voltage 
>limit.  The scope indicates for devices with a rated voltage not 
>exceeding 72.5kV.

I don't think so. IP ratings are only about penetration of the 
enclosure, not about whether a product is safe or not. If stuff gets in, 
it's not IP68.
-- 
OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk
Things can always get better. But that's not the only option.
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK

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