control power for Emergency Generators

[mshields]

I've inherited a project where my predecessor provide optional standby 120V control for the various components of a typical emergency generator that needs 120V power; jacket water heater, battery charger, lights, etc.

I would normally put these things a circuit fed to the generator from the Emergency Branch.

Are they required to be on Emergency Power per the NEC OR can I live with OS power for these things.

 

[dkidd]

Lights should be on emergency power. The jacket heater isn't needed when it runs. If the generator has a battery charging alternator, the charger can be on normal power.

 

[texie]

I've inherited a project where my predecessor provide optional standby 120V control for the various components of a typical emergency generator that needs 120V power; jacket water heater, battery charger, lights, etc.

I would normally put these things a circuit fed to the generator from the Emergency Branch.

Are they required to be on Emergency Power per the NEC OR can I live with OS power for these things.

You need to look at NFPA 110 for this.

 

[paulengr]

See NFPA 101 and 110. Those are the standards for generators.