PSNet,

    Well, again this topic has turned on a lot of discussion - and some
interesting comments.  

    There has been some side discussion among some safety folks and it
looks like that SC61/60335 folks believe that this is covered.  The oven
should be safe even if all protective devices fail.  (However the stuff
stored in the oven apparently was 'well done' - and I usually prefer
'medium-rare').  

    More specifically, the following 335 tests are prescribed:  

19.11.4.1   ... electrostatic discharge, IEC 64000-4-2, level 4 ...

19.11.4.2   ... radiated fields, IEC 61000-4-3, level 3 ...

19.11.4.3   ... fast transient bursts, IEC 61000-4-4, level 3 signal &
control lines, level 4 power supply lines ...

19.11.4.4   ... voltage surges, IEC 61000-4-5, level 3 line-to-line,
level 4 line to earth ...

19.11.4.5   ... injected currents, IEC 61000-4-6, level 3 ...

19.11.4.6   ... voltage dips & interruptions, IEC 61000-4-11, Class 3
...

19.11.4.7 ... mains signals, IEC 61000-4-13, class 2 ...

Yes, we know that North America does not uniformly use IEC standards. 

If you have comments on the adequacy of these tests - considering the
present incident - please pass them along.  

br, Pete

    Peter E Perkins, PE
    Principal Product Safety & Regulatory Consultant
    Tigard, ORe  97281-3427

    503/452-1201    fone/fax
    [email protected]

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