I. General
382.1 Scope. This article covers the use, installation, and construction specifications for nonmetallic extensions.
382.2 Definitions.
Concealable Nonmetallic Extension. A listed assembly of two, three, or four insulated circuit conductors within a nonmetallic jacket, an extruded thermoplastic covering, or a sealed nonmetallic covering. The classification includes surface extensions intended for mounting directly on the surface of walls or ceilings, and concealed with paint, texture, joint compound, plaster, wallpaper, tile, wall paneling, or other similar materials.
Nonmetallic Extension. An assembly of two insulated conductors within a nonmetallic jacket or an extruded thermoplastic covering. The classification includes surface extensions intended for mounting directly on the surface of walls or ceilings.
382.6 Listing Requirements. Concealable nonmetallic extensions and associated fittings and devices shall be listed. The starting/source tap device for the extension shall contain and provide the following protection for all load-side extensions and devices.
(1) Supplementary overcurrent protection
(2) Level of protection equivalent to a Class A GFCI (3) Level of protection equivalent to a portable GFCI
(4) Line and load-side miswire protection
(5) Provide protection from the effects of arc faults
II. Installation
382.10 Uses Permitted. Nonmetallic extensions shall be permitted only in accordance with
382.10(A), (B), and (C).
(A) From an Existing Outlet The extension shall be from an existing outlet on a 15- or 20-ampere
branch circuit. Where a concealable nonmetallic extension originates from a non-grounding-type receptacle, the. installation shall comply with
250.130(C), 406.3(D)(3)(b), or 406.3(D)(3)(c).
(B) Exposed and in a Dry Location. The extension shall be run exposed, or concealed as permitted in
382.15, and in a dry location.
(C) Residential or Offices. For nonmetallic surface extensions mounted directly on the surface of walls or ceilings, the building shall be occupied for residential or office purposes and shall not exceed three floors abovegrade. Where identified for the use, concealable nonmetallic extensions shall be permitted more than three floors abovegrade.
FPN No. 1: See 310.10 for temperature limitation of conductors.
FPN No. 2: See 362.10 for definition of First Floor.
382.12 Uses Not Permitted. Nonmetallic extensions shall not be used as follows:
(1) In unfinished basements, attics, or roof spaces
(2) Where the voltage between conductors exceeds 150 volts for nonmetallic surface extensions and 300 volts for aerial cable
(3) Where subject to corrosive vapors
(4) Where run through a floor or partition, or outside the room in which it originates
382.15 Exposed.
(A) Nonmetallic Extensions. One or more extensions shall be permitted to be run in any direction from an exist-ing outlet, but not on the floor or within 50 mm (2 in.) from the floor.
(B) Concealable Nonmetallic Extensions. Where identified for the use, nonmetallic extensions may be concealed with paint, texture, concealing compound, plaster, wallpaper, tile, wall paneling, or other similar materials and installed per
382.15(A).
382.26 Bends.
(A) Nonmetallic Extensions. A bend that reduces the normal spacing between the conductors shall be covered with a cap to protect the assembly from physical damage.
(B) Concealable Nonmetallic Extensions.
Concealable extensions shall be permitted to be
folded back over themselves and flattened as required for installation.