rjken1969
Member
- Location
- Princeton, NJ
I'm installing a 1MW generator to service (2) 800A sub distribution panels. The panels are existing and both have main lugs, also they are fed from a switchboard that is located in the same elec/mech room. The new generator and ATSs will also be located in the same elec/mech room as the existing panels that will be serviced.
Is there a requirement for an ATS to have an OCPD after it before the MLO panel? It seems that the feeders are protected by the generator breakers and the main switchboard breakers. I can't find anything that calls for protection at the sub distribution level.
How about if the generator is outside and the ATSs are inside, is an OCPD required then?
Thx-
Is there a requirement for an ATS to have an OCPD after it before the MLO panel? It seems that the feeders are protected by the generator breakers and the main switchboard breakers. I can't find anything that calls for protection at the sub distribution level.
How about if the generator is outside and the ATSs are inside, is an OCPD required then?
Thx-