NONMETALLIC EXTENSIONS

342-1. Definition. Nonmetallic extensions are an assembly of two insulated conductors within a nonmetallic jacket or an extruded thermoplastic covering. The classification includes both surface extensions, intended for mounting directly on the surface of walls or ceilings, and aerial cable, containing a supporting messenger cable as an integral part of the cable assembly. 342-2. Other Articles. In addition to the provisions of this article, nonmetallic extensions shall be installed in accordance with the applicable provisions of this Code. 342-3. Uses Permitted. Nonmetallic extensions shall be permitted only where all of the following conditions are met: (a) From an Existing Outlet. The extension is from an existing outlet on a 15- or 20-ampere branch circuit in conformity with the requirements of