In message <7B9D892F88F070469771832D78B3086E282A7681@013-BR1MPN1-013.MGDPBI.global.p
vt>, dated Mon, 5 May 2014, Jim Hulbert <jim.hulb...@pb.com> writes:

.  Do these phrases give the manufacturer the opportunity to define a degree of protection that may not follow the typical values provided in the NOTE 3 table if the installation environment is sufficiently controlled? 

Probably. The essence is that the manufacturer must document and be able to justify any such variation. But usually the first question is, 'Do we *really* need to have a variation?'
--
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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