A box that has self-contained cable clamps holds two light switches. A two-wire No. 12 cable with ground feeds the box, and a pair of two-wire No. 12 cables (four conductors) with ground wires leaves the box to feed the light fixtures. The second switch is fed by a No. 12 jumper wire from the first switch. The following box combinations would furnish the minimum allowable volume: Two 3-inch 2-inch 2 1/4-inch gangable device boxes.

"On high-current appliances in residential installs" should you use a dead-front plug.

A duplex receptacle can be converted to a split-wired receptacle by removing the contact link.

The technical definition of an outlet is: A point from which current is taken.