Products and the 2002 National Electrical Code Changes

Article 527
(1999 NEC Article 305)
Temporary Installations
527 Temporary Installations. This article was relocated from Chapter 3 of the 1999 NEC
to Chapter 5 of the 2002 NEC.
Article 640
Audio Signal Processing, Amplification, and Reproduction Equipment
640.3(A) Spread of Fire or Products of Combustion. (ENT, RNC, & LFNC). Abandoned
audio distribution cables are required to be removed. Cables installed in raceways are
easily removed and replaced.
Article 645
Information Technology Equipment
645.5(D)(2) Under Raised Floors. (ENT, Nonmetallic Wireway, and Surface Nonmetallic
Raceways). ENT, Nonmetallic Wireway, and Surface Nonmetallic Raceways are now
acceptable wiring methods to be used in raised floors in computer rooms. This should be
a good market expansion for ENT.
645.5(D)(6) Under Raised Floors. (ENT, RNC, LFNC, Nonmetallic Wireway, and
Surface Nonmetallic Raceways). Abandoned cables are required to be removed. Cables
installed in raceways are easily removed and replaced.
Article 680
Swimming Pools, Fountains, and Similar Installations
680.23(F)(1)Exception Wiring Methods. (LFNC-B). Liquidtight Flexible Nonmetallic
Conduit, Type-B, is permitted to be used in lengths longer than 1.8m (6ft) for connecting
to transformers for pool lights. 1999 NEC Section was 680-25(b)(3) Exception.
Article 692
Fuel Cell Systems
692 Fuel Cell Systems. (All nonmetallic raceways and products). This is a new article in
the 2002 NEC. Fuel Cell Systems is a growing technology for alternative stand-alone and
interactive energy production sources.
Article 695
Fire Pumps
695.14(E) Electrical Fire Pump Control Wiring Methods. (LFNC-B). Liquidtight Flexible
Nonmetallic Conduit, Type B, is acceptable as a wiring method for all electrical motor-
driven fire pump control wiring.
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