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350-Liquidtight Flexible Metal Conduit

I. General

350.1 Scope. This article covers the use, installation, and construction specifications for liquidtight flexible metal conduit (LFMC) and associated fittings.

350.2 Definition.

Liquidtight Flexible Metal Conduit (LFMC). A raceway of circular cross section having an outer liquidtight, non- metallic, sunlight-resistant jacket over an inner flexible metal core with associated couplings, connectors, and fittings for the installation of electric conductors.

380-Multioutlet Assembly

380.1 Scope. This article covers the use and installation requirements for multioutlet assemblies.

380.2 Use.

(A) Permitted. The use of a multioutlet assembly shall be permitted in dry locations.

(B) Not Permitted. A multioutlet assembly shall not be installed as follows:

352-Rigid Polyvinyl Chloride Conduit

I. General

352.1 Scope. This article covers the use, installation, and

construction specifications for rigid polyvinyl chloride con
duit (PVC) and associated fittings.
FPN: Refer to Article 353 for High Density Polyethylene Conduit: Type HDPE, and Article 355 for Reinforced Thermosetting Resin Conduit: Type RTRC.

382-Nonmetallic Extensions

I. General

382.1 Scope. This article covers the use, installation, and construction specifications for nonmetallic extensions.

382.2 Definitions.

353-High Density Polyethylene Conduit

I. General

353.1 Scope. This article covers the use, installation, and construction specifications for high density polyethylene (HDPE) conduit and associated fittings.

FPN: Refer to Article 352 for Rigid Polyvinyl Chloride Conduit: Type PVC and Article 355 for Reinforced Ther- mosetting Resin Conduit: Type RTRC.

384-Strut-Type Channel Raceway

I. General

ARTICLE 384

384.22 Number of Conductors. The number of conduc- tors permitted in strut-type channel raceways shall not exceed the percentage fill using Table 384.22 and applicable cross-sectional area of specific types and sizes of wire given in the tables in Chapter 9.

The derating factors of 310.15(B)(2)(a) shall not apply to conductors installed in strut-type channel

354-Nonmetallic Underground Conduit with

I. General

354.1 Scope. This article covers the use, installation, and construction specifications for nonmetallic underground conduit with conductors (NUCC).

354.2 Definition.

386-Surface Metal Raceways

I. General

of conductors or cables installed in surface metal raceway shall not be greater than the number for which the raceway is designed. Cables shall be permitted to be installed where such use is not prohibited by the respective cable articles.
The derating factors of 310.15(B)(2)(a) shall not
apply to conductors installed in surface metal raceways
where all of the following conditions are met:

(1) The cross-sectional area of the raceway exceeds

355-Reinforced Thermosetting Resin

I. General

355.1 Scope. This article covers the use, installation, and construction specification for reinforced thermosetting resin conduit (RTRC) and associated fittings.

FPN: Refer to Article 352 for Rigid Polyvinyl Chloride Conduit: Type PVC, and Article 353 for High Density Polyethylene Conduit: Type HDPE.

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