2008

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Solar365 National Electric Code

505-Class I,Zone 0,1, and 2 Locations

FPN: Rules that are followed by a reference in brackets contain text that has been extracted from NFPA 497-
2004, Recommended Practice for the Classification of

Flammable Liquids, Gases, or Vapors and of Hazardous

(Classified) Locations for Electrical Installations in

Chemical Process Areas. Only editorial changes were

made to the extracted text to make it consistent
with this Code.

547-Agricultural Buildings

547.1 Scope. The provisions of this article shall apply to the following agricultural buildings or that part of a building or adjacent areas of similar or like nature as specified in 547.1(A) and (B).

(A) Excessive Dust and Dust with Water. Agricultural buildings where excessive dust and dust with water may accumulate, including all areas of poultry, livestock, and fish confinement systems, where litter dust or feed dust, including mineral feed particles, may accumulate.

645-Information Technology Equipment

645.1 Scope. This article covers equipment, power- supply wiring, equipment interconnecting wiring, and grounding of information technology equipment and systems, including terminal units, in an information technology equipment room.

FPN: For further information, see NFPA 75-2003, Stan- dard for the Protection of Information Technology Equipment.

426-Fixed Outdoor Electric Deicing

I. General

according to Article 422.

426.4 Continuous Load. Fixed outdoor electric deicing and snow-melting equipment shall be considered as a continuous load.

427-Fixed Electric Heating Equipment

I. General

427.1 Scope. The requirements of this article shall apply to electrically energized heating systems and the installation of these systems used with pipelines or vessels or both.

FPN: For further information, see ANSI/IEEE Std. 515-
2002, Standard for the Testing, Design, Installation and

Maintenance of Electrical Resistance Heat Tracing for In-

dustrial Applications; ANSI/IEEE Std. 844-2000, Recom-

430-Motors, Motor Circuits, and Controllers

Tables, Tables 430.247 through 430.251 (B) Part XIV

To Supply

ARTICLE 430

Motors, Motor Circuits, and Controllers

Part II

430.24,

430.25,430.26

I. General

430.1 Scope. This article covers motors, motor branch- circuit and feeder conductors and their protection, motor overload protection, motor control circuits, motor controllers, and motor control centers.

422-Appliances

I. General

422.11 Overcurrent Protection. Appliances shall be pro tected against overcurrent in accordance with

422.11(A)through (G) and 422.10.

(A) Branch-Circuit Overcurrent Protection. Branch cir cuits shall be protected in accordance with 240.4.

If a protective device rating is marked on an appliance, the branch-circuit overcurrent device rating shall not exceed the protective device rating marked on

424-Fixed Electric Space-Heating Equipment

I. General

424.1 Scope. This article covers fixed electric equipment used for space heating. For the purpose of this article, heating equipment shall include heating cable, unit heaters, boilers, central systems, or other approved fixed electric space-heating equipment. This article shall not apply to process heating and room air conditioning.

355-Reinforced Thermosetting Resin

I. General

355.1 Scope. This article covers the use, installation, and construction specification for reinforced thermosetting resin conduit (RTRC) and associated fittings.

FPN: Refer to Article 352 for Rigid Polyvinyl Chloride Conduit: Type PVC, and Article 353 for High Density Polyethylene Conduit: Type HDPE.

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