Hi Peter:
> The Dielectric Voltage Withstand Table in UL1950/EN 60 950 lists
> equipment with "Mains DC". What does this mean?
You make it difficult to answer this question because you
used a term that does not appear in UL 1950:
Mains DC
I did an electronic search of the standard for this term;
there is no such term. The term that is used is:
d.c. mains
The only place this term is used is in the notes to Table
18, "Test voltages for electric strength tests."
In some cases, equipment may be made to operate from a
d.c. mains rather than an a.c. mains. The point of notes
6, 7, and 8 accompanying Table 18 is to identify the electric
strength test voltages for equipment intended to be connected
to a d.c. mains supply.
Best regards,
Rich
-------------------------------------------------------------
Richard Nute Product Safety Engineer
Hewlett-Packard Company Product Regulations Group
AiO Division Tel : +1 619 655 3329
Effective 6/12/99: +1 858 655 3329
16399 West Bernardo Drive FAX : +1 619 655 4979
Effective 6/12/99: +1 858 655 4979
San Diego, California 92127 e-mail: [email protected]
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