Dwayne Reid wrote:

>Couple of things:
>
>1) Why is the hipot test needed for a low-voltage device?
>
>2) I *assume* that the hipot test is done the standard way: connect 
>both power input terminals together, then apply the test voltage 
>between those input terminals and the case / enclosure.  Output 
>terminals (if any) are floating.
>
>Is that in fact what they propose to do?
>
>
>Regardless, I'd suggest finding out why they think that hipot testing 
>of a low-voltage device is necessary.
>
>dwayne
>
>
>At 09:41 AM 6/18/2008, William Bross wrote:
>
>  
>
>>I just ran my first one through ETL, the allegedly cheaper UL knockoff
>>lab.  Obscurely hidden in the end of the final report is a requirement
>>to hipot test this device with 840VAC or 1080VDC for 2 seconds.
>>    
>>
>
>
>  
>
Hi Dwayne,

Yep, standard hipot test as you describe.  They say that if the standard 
being tested against has the hipot requirement, they make production 
line testing mandatory.  I've petitioned that this requirement be waived 
so we'll see what happens.  I did have a fairly lengthy conversation 
with one of their engineers that seemed fairly knowledgable about the 
subject.  He also seemed reasonable and was open to other opinions and 
interpretations of the spec.  We'll see how it goes.

Bill
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