Topband: Hospital Grade Outlets and Surge Suppressors

[Paul Christensen]

> They are almost certainly MOVs. Shunt mode surge suppressors (MOVs) on
> branch circuits are a very bad idea -- 

Jim,

Even with primary suppression protection at the service entrance?  The 
literature I'm seeing suggests the use of secondary suppression on branch 
circuits *only* after the inclusion of primary protection at the service 
entrance exactly for the reason you mention.  Tnx!

Paul, W9AC