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Should you drive a ground rod at a generator?

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We just went thru this in a code seminar, and I forget what the panel's take on it was. I believe that if it is a SDS, then yes.

It might be in the IAEI's Analysis Of Changes book which I did not purchase.
 

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We just went thru this in a code seminar, and I forget what the panel's take on it was. I believe that if it is a SDS, then yes.

It might be in the IAEI's Analysis Of Changes book which I did not purchase.
I will provide the answer later in this thread.:):laughing:
 

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NO, per the following

I follow all rules per 1926.404(f)(3)(i)(b) and

(A) Portable Generators. The frame of a portable generator
shall not be required to be connected to a grounding
electrode as defined in 250.52 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, and
(2) The normally non–current-carrying metal parts of equipment
and the equipment grounding conductor terminals of
the receptacles are connected to the generator frame.
 

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Discussion Starter #6
NO, per the following

I follow all rules per 1926.404(f)(3)(i)(b) and

(A) Portable Generators. The frame of a portable generator
shall not be required to be connected to a grounding
electrode as defined in 250.52 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, and
(2) The normally non–current-carrying metal parts of equipment
and the equipment grounding conductor terminals of
the receptacles are connected to the generator frame.
Good, But this is about permanently installed Generators.
 

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Just after 5 minutes this video tells you to drive a ground rod and connect it to the lug on the generator ..
No it doesn't, it says the same thing Generac says in their instructions, "As specified by local regulations (code, etc.)".

No ground rod is required by code unless it's an SDS.
 

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On my first generator install the Kohler rep refused to start commissioning it until I agreed to make a run and get/install a ground rod. The guy was mostly a diesel mechanic and didn't know why one should be installed other than "the boss insists on it". Since then I always put one in no matter what kind of neutral connection.
 

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I will provide the answer later in this thread.:):laughing:
Harry, are you going to post Mike Holt's thing on lightning at the end of the thread like it's a gameshow and that's the big surprise?? :laughing:

In the end, of the generator requires it, or if it's an SDS and the NEC requires it, or if the local amendments require it, then it's required no matter if it's dangerous or not.
 

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When does a standby generator become a separately derived system?
 

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When the neutral is switched in the transfer switch.
Right, but isn't the neutral switched because its separately derived?

What situation requires you to make it separately derived and cause you to switch the neutral and connect the generator to the GEC?

Real question, I'm not being cryptic.

edit
I should have asked;
Isn't the neutral switched to make it separately derived?
 
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Goldagain said:
Right, but isn't the neutral switched because its separately derived? What situation requires you to make it separately derived and cause you to switch the neutral and connect the generator to the GEC? Real question, I'm not being cryptic.
Hospital emergency systems have switched neutrals and places with sensitive electronics
 
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