Products and the 2002 National Electrical Code Changes

increase the amount of outlet boxes used with NM Cable. Cities may restrict this
expanded use of NM Cable by writing amendments to the NEC. Annex E was added to
the 2002 NEC to help understand the different building types.
Article 344
(1999 NEC Article 346)
Rigid Metal Conduit: Type RMC
Table 344.24 Radius of Conduit Bends. (All raceways). This revised table clarifies the
minimum bending radius for all raceways described in Chapter 3. Individual nonmetallic
raceway articles will refer back to this table.
Article 352
(1999 NEC Article 347)
Rigid Nonmetallic Conduit: Type RNC
352.6 Listing Requirements. (Fittings and Elbows). This section now clarifies that all
fittings and elbows are required to be listed when used with Rigid Nonmetallic Conduit.
Article 354
(1999 NEC Article 343)
Nonmetallic Underground Conduit with Conductors: Type NUCC
354.100(B) Nonmetallic Underground Conduit. (HDPE Raceway). This is a new product
for Carlon but a old product for Pyramid. This HDPE Raceway is permitted to ship with
pre-installed conductors. 354.100(B) now requires the raceway, as a component, to be a
listed product.
Article 356
(1999 NEC Article 351 Part B)
Liquidtight Flexible Nonmetallic Conduit: Type LFNC
Article 356 Liquidtight Flexible Nonmetallic Conduit: Type LFNC. (LFNC-B). This
article for Liquidtight Flexible Nonmetallic Conduit is now a stand alone article. In the
1999 NEC this product was Part B of the Liquidtight Flexible Metal Conduit article.
Article 362
(1999 NEC Article 331)
Electrical Nonmetallic Tubing: Type ENT
362.10(2) Uses Permitted. (ENT). The words “or noncombustible” were accidentally
omitted after the word “combustible” in the last sentence. This will be added to the NEC
Errata and corrected in the printing of the next edition of the 2002 NEC.
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