Class 1E power feed separation
Class 1E power feed separation
(OP)
If I have a component that must receive class 1E power, how far upstream does that circuit need to be class 1E?IE, all the way to the Unit Auxiliary Transformer?
thanks
thanks





RE: Class 1E power feed separation
So, for example, our Class 1E buss is 4160V, which feeds some important pumps, etc. and several 480V load centers. Those load centers then feed multiple other components and some 480V/240V/120V transformers that feed to other components/circuit panels. All of this is considered Class 1E. We also have similar systems that are not considered Class 1 to feed circuits that do not have safety related equipment/components. The primary difference is that the non-Class 1E systems do not have the backup emergency power supplies. So, if we lose offsite power, the non-Class 1E circuit will not have power.
RE: Class 1E power feed separation
thanks
RE: Class 1E power feed separation