Article 702

[RESI]

Hello to all- In regards to the 2008 NEC, Article 702.5 (2) (a)

It says: The standby source shall be capable of supplying the full load that is transferred by the automatic transfer equipment.

I welcome all answers but I am particularly interested in answers from inspectors. Does this mean that a residential standby generator with a automatic transfer switch must be capable of supplying all load connected at one time?

:?

 

[infinity]

Yup. Unless you have a load shedding or other automatic device to limit the potential for overloading the generator.

 

[augie47]

agree with Rob

 

[iMuse97]

Hello to all- In regards to the 2008 NEC, Article 702.5 (2) (a)

It says: The standby source shall be capable of supplying the full load that is transferred by the automatic transfer equipment.

I welcome all answers but I am particularly interested in answers from inspectors. Does this mean that a residential standby generator with a automatic transfer switch must be capable of supplying all load connected at one time?
:?

Would you care for a response from someone who has tried to overload a small jennie just to see what would happen?

Anyway, probably not gonna get that standby genset installed before the rain? BTW, FWIW, I agree with the preceding gentlemen. The Standby capacity requirement is a basic design feature so that you don't ruin your equipment.