"Historically, contractors have used three conductor cables and a shared neutral for two bedroom circuits to reduce the labor costs over installing two cables," explained Dave Mercier, technical director for Southwire’s Electrical Division. "However, with the newly required AFCI breakers for bedrooms, many builders must now use separate neutrals when two circuits are needed. Southwire’s new 2/2/conductor cable with two neutrals solves this problem for the contractor while continuing to offer labor savings and convenience," he added.
would'nt 2P AFCI's be simpler, as well as easy on the box vol, 3 vs. 4 wires...
