George.

IMO 250.34(A) and (B) allow any amount of equipment to be cord and plug connected to a generator without the use of a ground rod.

Part of 250.34
Quote
250.34 Portable and Vehicle-Mounted Generators.
(A) Portable Generators. The frame of a portable generator shall not be required to be grounded and shall be permitted to serve as the grounding electrode for a system supplied by the generator under the following conditions:

(1)The generator supplies only equipment mounted on the generator, cord-and-plug-connected equipment through receptacles mounted on the generator, or both,.....

I think it is important to notice "cord-and-plug-connected equipment through receptacles mounted on the generator"

They use the term "equipment" not the term "utilization equipment".

IMO this means you could feed a portable distribution panel to smaller panels and finally branch circuits if it was all cord and plug connected.

What exactly is a ground rod going to do? [Linked Image]

Bob



[This message has been edited by iwire (edited 06-01-2004).]

Bob Badger
Construction & Maintenance Electrician
Massachusetts