Hello PSTC members! 

I'm working on a product that is telecom network powered (-190 Vdc) and will 
most likely require a production line hipot test. Being network powered, it is 
exposed to outside plant surges and has transient protection designed in (fuse 
and sidactor). 

UL's Follow-up Services gray pages states that "Transient voltage suppresion 
devices other than capacitors connected from primary wiring to dead metal may 
also be disconnected during the test." 

Will a production line hipot test be required? 

Has anyone had experience with this and how do you go about removing soldered 
sidactors to do the hipot test? It seems like this would be an extra step in 
the manufacturing process. 

All comments/opinions are welcome. 

Thank you, 

Jerry 




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