Curious about 12-2-2 cable.

[Steve Barker]

Saw this in the store. 12-2-2. NM-B 4 conductor with ground. I was just curious to the typical application for such a cable.

[Doug Miller]

Google on "12-2-2 AFCI"

[John Grabowski]

Wiring manufacturers came out with this as a substitute for 12/3 and 14/3 when those circuits will be used for bedrooms protected by arc fault circuit interrupter breakers. Instead of a shared neutral for two circuits, you would now have a separate neutral for each, but one common grounding conductor. I'm not sure how much this stuff is used by contractors even though it can save on labor costs.

[John Gilmer]

Why color do "they" make the second neutral?

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[LayPerson Tom]

Certain protective devices like GFCI and AFCI breakers cannot supplie circircuits with a shared neutral. So x-2-2 seemed to have come into their own.

tom @

[John Grabowski]

White with a red stripe.