Dedicated power

I've been told this is supposedly an acceptable practice but the I/G outlets must run their grounding wires to a separate isolated grounding bar and ultimately out to a buried grounding rod.

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Dangerous and in violation of NEC code.

Works great for hunting fish worms though....
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Isolated grounding type receptacles are used mainly in commercial and industrial facilities. Usually they are used for connected loads of sensitive electronic equipment where EMI/RFI noise may be present on electrical metallic conduit, metal wall studs, and such.

99.9% of the time the insulated equipment grounding conductor for an IG receptacle connects to the same ground bar in the electrical panel as the insulated equipment grounding conductors of the non IG receptacles.

In any case the isolated ground, of the IG receptacle, equipment grounding conductor is never connected to an isolated ground rod.

The main sole purpose of the safety equipment ground and the grounding conductor is to carry any ground fault current that may be placed upon it back to the source with the least resistive path as possible.

The earth shall not be considered as an effective ground-fault current path. NEC 250.4 (A)(5)

http://www.aes.org/sections/pnw/pnwrecaps/2005/whitlock/whitlock_pnw05.pdf
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IG recetps do not have to be fed from a GFCI breaker.
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