"Equipment shall not become dangerous or unsafe as a result of the application
of the tests defined in this section of IEC 1000-4."
That statement appears in (with only slight variations) -2, -3, -4, -5 and -6.
Dangerous or unsafe is not defined. There are no links to any safety standards
or other criteria to apply. So, which one of the following would apply?
1. No smoke, no fire, the cover didn't fly off, dogs still hate cats, so it's
safe!
2. The usual standards-driven safety qualification is done on another sample,
the EMC sample is not safety tested unless something very obvious has happened.
3. Take the EMC sample(s) to the safety lab for validating key parameters like
dielectric withstand and leakage current.
4. Take the EMC sample(s) to the safety lab for a full safety evaluation.
Regards,
Eric Lifsey
Compliance Manager
National Instruments
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