700.9

[tsfy]

This section is driving engineers crazy when it comes to generator sets. They believe it means that if you have multiple breakers on the genset, they have to be in different sections of a switchboard if different priorities - not unit mounted. Talked to NFPA (Who wont put it in writing) and that is NOT what they mean - they want emergency separated from legally required standby, etc.AT THE SWITCHGEAR

Has anyone seen anything clarifying this that we can get our hands on from ANYONE?

 

[steve66]

Not sure I completely understand the question, but have you read "Exception to (5)(b)".

It seems to me that specifically allows a single breaker at the generator, and I think it also allows multiple breakers at the generator.

 

[don_resqcapt19]

This section is driving engineers crazy when it comes to generator sets. They believe it means that if you have multiple breakers on the genset, they have to be in different sections of a switchboard if different priorities - not unit mounted. Talked to NFPA (Who wont put it in writing) and that is NOT what they mean - they want emergency separated from legally required standby, etc.AT THE SWITCHGEAR

Has anyone seen anything clarifying this that we can get our hands on from ANYONE?

The NFPA will put it in writing if you submit a request for a Formal Interpretation, but the answer will take at least 6 months to get. Your question has to be written in a way that it can be answered with a yes or a no.