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Tool Talk Discussion Forum

Re: Generator problem

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Author  [Modern View]
John T

07-26-2013 05:59:51
216.249.76.176



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JD, with all due respect heres a little more info that may help you and others who read this.... THIS IS MY BEST RECOLLECTION NO WARRANTY, CONSULT THE NEC

The problem is when lay people here say the word GROUND, that may have one or two or no tellin how many meanings to readers. Theres Earth Grounding of a Neutral for surge and lightning protection, and theres Life Safety Equipment Grounding via an Equipment GroundING Conductor being attached to a piece of equipment. They each serve a different purpose and cant really be susbstituted for each other.

In the event loads are fed using a cord and plug to onboard genny receptacles, there is no requirement for a GroundING Electrode.

In the event a genny is configured as a "Seperately Derived System" then a GroundING Electrode is required.

In the event the genny IS NOT configured as a seperately derived system anddddddddd you use only a 2 pole Transfer Switch (talkin 120/240 volt single phase three wire NO NEUTRAL SWITCHING) ANY INTERNAL GENNY NEUTRAL TO CASE/FRAME BOND IS TO BE SEVERED

And the genny and utility Neutrals are wired together

And the homes Equipment GruondING conductor is ran out and attached to the gennys case/frame

Earth Grounding of the Neutral (genny or utility) via a GroundING Electrode (made or otherwise) IS NOT I REPEAT NOT the same as Safety Equipment GroundING. The Gennys Neutral (if a seperately derived system) or the utility Neutral (its also seperately derived) are earth grounded via/to a GroundING Electrode, while the gennys case/frame (when NOT a seperately derived system) is then attached to the Equipment GroundING Conductor.

Earth Ground of the Neutral (genny or utility) NOT SAME AS the equipment GroundING Conductor

I know I loose yall on this, but I still gotta try lol, sorry

John T

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