Exception No. 1: Current transformers.
Exception No. 2: Dry-type transformers that constitute a component part of other apparatus and comply with the requirements for such apparatus.
Exception No. 3: Transformers that are an integral part of an X-ray, high-frequency, or electrostatic-coating apparatus.
Exception No. 4: Transformers used with Class 2 and
FPN: Rules that are followed by a reference in brackets contain text that has been extracted from NFPA 30A-2008, Code for Motor Fuel Dispensing Facilities and Repair Ga rages. Only editorial changes were made to the extracted text to make it consistent with this Code.
Not covered by this article are cells used as a source of electric energy and for electroplating processes and cells used for the production of hydrogen.
455.6 Conductors.
FPN: Single-phase conductors sized to prevent a voltage drop not exceeding 3 percent from the source of supply to the phase converter may help ensure proper starting and operation of motor loads.
FPN: Rules that are followed by a reference in brackets contain text that has been extracted from NFPA 30-2008, Flammable and Combustible Liquids Code. Only editorial changes were made to the extracted text to make it consis- tent with this Code.
tank vehicle and are stored or blended in bulk for the pur- pose of distributing such liquids by tank vessel, pipeline, tank car, tank vehicle, portable tank, or container. [30:3.3.32.1]
590.1 Scope. The provisions of this article apply to tem- porary electric power and lighting installations.
590.2 All Wiring Installations.
(A) Other Articles. Except as specifically modified in this article, all other requirements of this Code for permanent wiring shall apply to temporary wiring installations.
669.1 Scope. The provisions of this article apply to the installation of the electrical components and accessory equipment that supply the power and controls for electroplating, anodizing, electropolishing, and electrostripping. For purposes of this article, the term electroplating shall be used to identify any or all of these processes.
Surge capacitors or capacitors included as a component part of other apparatus and conforming with the requirements of such apparatus are excluded from these requirements.
This article also covers the installation of capacitors in hazardous (classified) locations as modified by Articles 501 through 503.
FPN: Rules that are followed by a reference in brackets contain text that has been extracted from NFPA 33-
2007, Standard for Spray Application Using Flammable
and Combustible Materials, or NFPA 34-2007, Standard for Dipping and Coating Processes Using Flammable or Combustible Liquids. Only editorial changes were made to the extracted text to make it consistent with this
Code.
