In message <[email protected]>, dated Mon, 29 Apr 2013, Carl Newton <[email protected]> writes:

  Still, customer?s NRTL2 is demanding that this test be repeated upon 100% of the power supplies at customer?s premises. 

I don't know 'custom and practice' in USA, but I would expect that requirement to apply in Europe. There is a minute but finite probability that the insulation could be compromised in transit or within the customer's premises. The dielectric strength test is therefore applied after the *last manufacturing operation*.
--
OOO - Own Opinions Only. See www.jmwa.demon.co.uk
They took me to a specialist burns unit - and made me learn 'To a haggis'.

John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK

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