Article 354 Nonmetallic Underground Conduit with Conductors Type NUCC

I. General

354.1	Scope
354.2	Definition

This is a factory assembly of conductors or cables in a nonmetallic circular conduit.

354.6

Listing Requirements

 

II. Installation

354.10

Uses Permitted

It can be used encased or embedded in concrete, in cinder fill, for direct burial cable with cover requirements as noted in Tables 300.5 and 300.50 under rigid nonmetallic conduit, and in underground locations subject to corrosive action as noted in Section 300.6 and where subject to chemicals when the assembly is approved for it.

354.12

Uses Not Permitted

It cannot be used in exposed locations, inside buildings with one exception, and in hazardous (classified) locations except as noted in Sections 503.3(A), 504.20, 514.8, 515.8, and 501.4(B).

354.20

Size

It cannot be smaller than metric designator 16 (trade size ½) or larger than metric designator 103 (trade size 4).

354.22

Number of Conductors

Not to exceed number shown in Table 1 of Chapter 9.

354.24

BendsHow Made

They must be made manually; the conduit must not be damaged and the internal diameter must not be reduced. Refer to Table 354.24.

354.26

BendsNumber in One Run

The maximum is not more than 360° between termination points.

354.28	Trimming
354.46	Bushings
354.48	Joints
354.50	Conductor Terminations
354.56	Splices and Taps
354.60	Grounding

 

III. Construction Specifications

354.100	Construction
354.120	Marking

Must be marked every 3.05 m (10 ft.). It also must be identified on a tag at each end of the assembly or on the side of the reel.