Products and the 2002 National Electrical Code Changes

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Carlon

2002 National Electrical Code

Changes Pertaining to Carlon Products

The National Electrical Code (NEC) is revised every three years to reflect the latest

installation practices in the electrical industry. Over 4500 proposals and 2500 comments

were submitted to revise the 1999 NEC. In addition, the NEC Usability Task Group

developed proposals to revise the numbering scheme of the articles and to standardize on

the numbering of sections within several articles to make the NEC more user friendly.

Carlon is proud to participate in the development of the NEC. Carlon is represented on

several Code Making Panels, the NEC Usability Task Group and other NEC Task

Groups. We are current members of the Electrical Section of the National Fire Protection

Association (NFPA). Carlon continues to participate in the education of the International

Association of Electrical Inspectors (IAEI), International Brotherhood of Electrical

Workers (IBEW), National Electrical Contractors Association (NECA) and the

Independent Electrical Contractors (IEC).

The purpose of this document is to familiarize parties associated with Carlon and Carlon

products with the major changes that occurred for the 2002 NEC pertaining to Carlon. It

is to also educate those on the format changes effecting the NEC.

General

Then following are changes that are general in nature and occurred throughout the 2002

NEC:

Metrification: Each article of the NEC has been revised to add International Units

(SI) of measure. The SI units will appear before the English units. The general

rule is to use a “hard conversion” where the SI units are rounded off. (Example:

30” (762mm) would read 750mm (30”)) Where the measurement has an impact of

safety, a “soft conversion” is used. (Example: 30” (762mm) would read 762mm

(30”)).

Luminaire: The term luminaire (lighting unit) was added throughout the NEC to

replace the terms “fixture(s)” and “lighting fixture(s)”. Since the NEC is an

International Code the term luminaire was more appropriate. The terms

“fixture(s)” and “lighting fixture(s)” will follow the term luminaire in parentheses

to help make the conversion easier for the user.

Parallel Numbering: Some articles in the NEC, including all the raceway and

cable articles, have been rewritten to have parallel numbering. As an example,

article Scopes have been designated “.1” and Uses Permitted “.10”. This will help

the user of the NEC to locate this type of common material without having to

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Summary of content (9 pages)

PAGE 1
Carlon 2002 National Electrical Code Changes Pertaining to Carlon Products The National Electrical Code (NEC) is revised every three years to reflect the latest installation practices in the electrical industry. Over 4500 proposals and 2500 comments were submitted to revise the 1999 NEC. In addition, the NEC Usability Task Group developed proposals to revise the numbering scheme of the articles and to standardize on the numbering of sections within several articles to make the NEC more user friendly.
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search for it in different locations in each article. This change will make it easier to compare two products for each of their uses. Article Renumbering: Articles of Chapter 3 of the 2002 NEC have been renumbered (Example: Article 331 for Electrical Nonmetallic Tubing (ENT) has been renumbered to Article 362). Cross-Reference Tables have been added to the 2002 NEC in Annex F.
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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.
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362.10(2) Exception. (ENT). The 1999 NEC permits Electrical Nonmetallic Tubing (ENT) to be used in buildings above three floors when concealed behind a 15 minute finish rated thermal barrier. 1999 NEC Section 331-3(2) The 2002 NEC will have an exception to this rule.
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Article 388 (1999 NEC Article 352 Part B) Surface Nonmetallic Raceways Article 388 Surface Nonmetallic Raceways. This article for Surface Nonmetallic Raceways is now a stand alone article. In the 1999 NEC this product was Part B of the Surface Metal Raceway article. Article 392 (1999 NEC Article 318) Cable Trays Table 392.3(A) Wiring Methods. (Optical Fiber/Communication Raceways). Optical Fiber and Communication Raceways have been added to this table as a permitted wiring method to be used in Cable Trays.
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Per Article 100, a Wet Location is defined as: Installations underground or in concrete slabs or masonry in direct contact with earth; in locations subject to saturation with water or other liquids, such as vehicle washing areas; and in unprotected locations exposed to weather. If the receptacle is either a 15 or 20 amp, 125 or 250 volt receptacle, exposed to the weather, an in-use weatherproof cover, also know as a bubble cover or hood cover, must be used.
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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.
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Article 725 Class 1, Class 2, and Class 3 Remote-Control, Signaling, and Power-Limited Circuits 725.3(B) Spread of Fire or Products of Combustion. (ENT, RNC, & LFNC). Abandoned Class 2, Class 3 and PLTC cables are required to be removed. Cables installed in raceways are easily removed and replaced. 725.55(I) In Hoistways. (LFNC). Liquidtight Flexible Nonmetallic Conduit is permitted to be used in hoistways for Class 2 or Class 3 circuit conductors. 725.61(B) Riser. (ENT, RNC, & LFNC).
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Article 800 Communications Systems 800.52(B) Spread of Fire or Products of Combustion. (Optical Fiber/Communications Raceways, ENT, RNC, & LFNC). Abandoned Communication Cables are required to be removed. Cables installed in raceways are easily removed and replaced. 800.53(A) Plenum. (Optical Fiber/Communications Raceways). Abandoned Plenum Rated Communication Cables are required to be removed. Cables installed in raceways are easily removed and replaced. 800.53(B)(1) Riser.