watersparkfalls;

Check out these IG Drawings + Schematics - they may help to explain proper designs of IG Circuitry.

Although the examples are built on Metallic Raceways + Outlet Boxes (therefore the Branch Circuits contain an EGC, or use the Raceway as an EGC), the concepts are still the same - just no need for a separate EGC when using Non-Metallic Boxes + NM-B Cable ("Romex").

as previously mentioned, a 2-Wire NM-B cable will be sufficient for a 120 Volt, 1Ø 2 Wire IG Branch Circuit.
The included bare EGC in the Cable is already Isolated by design - and if the Receptacles are in Non-Metallic boxes, the Equipment Bond is also Isolated by design.

Here are the drawings:

[Linked Image]

Fig. 1: Isolated Grounding Receptacle - Termiantions details.

[Linked Image]

Fig. 2: Panelboard + Branch Circuitry detail option

[Linked Image]

Fig. 3: Overall SDS detail with IG Branch Circuitry.

These items may be found in the Technical Reference section, at this location:

IG Details #1

Feel free to reply if you have more questions.

Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!