Article 388 Surface Nonmetallic Raceways

I. General

388.1	Scope
388.2	Definition

A nonmetallic raceway with its associated fittings mounted to the surface of a structure.

388.6

Listing Requirements

 

II. Installation

388.10

Uses Permitted

This can be used in dry locations. It can be used to pass transversely through dry walls, dry partitions, and dry floors if it is unbroken. You must maintain access to the conductors on either side of the wall floor or partition.

388.12

Uses Not Permitted

It cannot be installed concealed except as permitted in 388.10(2), where it might be damaged, where the voltage between conductors is 300 V or more unless so listed, in hoistways, in any hazardous area location except Class I, Division 2 permitted in 501.4(B), Exception, if ambient temperatures are higher than that for which the raceway is listed, or for conductors with insulation temperatures higher than the raceway is listed.

388.21

Size of Conductors

Not larger than the raceway design calls for.

388.22

Number of Conductors or Cables

Number not larger than the raceway design calls for. Cables can be installed if not prohibited by cable articles.

388.56	Splices and Taps
388.60	Grounding
388.70	Combination Raceways

 

III. Construction Specifications

388.100

Construction

It is made of nonmetallic material that is resistant to moisture, chemical atmospheres, impact and crushing, distortion from heat, and low temperatures. It is also flame-retardant.

388.120

Marking