| Published by the National Fire Protection Association (NFPA)
Get convenient access to the 2005 National Electrical Code facts for residential projects!
Created for electrical installers, contractors, and electricians who specialize in residential wiring, this document presents dwelling unit rules excerpted from the 2005 National Electrical Code.
Organized just like the 2005 National Electrical Code, NFPA 70A contains only rules for residential projects and covers single- and two-family dwellings of any kind, including mobile homes.
Topics include:
- Grounded conductors
- Branch circuits
- Feeders
- Services
- Overcurrent protection
- Grounding
- Surge arresters
- Wiring methods
Excerpted from the 2005 National Electrical Code NFPA 70-2005
From the Preface
This 2005 edition of NFPA 70A is a compilation of electrical provisions for one- and two-family dwellings. The provisions assembled in this compilation have been extracted directly from the 2005 edition of NFPA 70, National Electrical Code, and have been editorially revised only where necessary to limit their application to one- and two-family dwellings. This compilation has been reviewed and approved by the National Electrical Code Committee through its Technical Correlating Committee. It is being provided for the convenience of inspectors, contractors, builders, and others who are primarily interested in only those 2005 National Electrical Code rules that apply to one- and two-family dwellings.
Only those wiring methods and materials commonly encountered in new construction of one- and two-family dwellings are included in NFPA 70A. In like manner, only current ratings up to and including 400 amperes (based on Table 310.15(B)(6)) and voltages up to and including 600 volts are covered in NFPA 70A. It is the intent that the rules covering wiring methods, any materials, or any type of equipment, such as motors, not specifically included in this document are to be covered by the applicable rules in the 2005 edition of the National Electrical Code.
Where a reference is made to an article or section not included in NFPA 70A, such as to Article 430 or 430.52, the reference is to that article or section as it appears in the 2005 edition of the National Electrical Code.
The numbering system for articles and sections of the 2005 edition of the National Electrical Code has been preserved in NFPA 70A, so that provisions in NFPA 70A bear the same numerical designation as they have in the 2005 National Electrical Code. The user of NFPA 70A should be aware, therefore, that there are gaps in the numerical sequence of provisions in NFPA 70A, and that these gaps are a natural consequence of the fact that NFPA 70A contains only selected provisions of the 2005 National Electrical Code.
This edition of NFPA 70A has been reviewed by the National Electrical Code Technical Correlating Committee, and the committee has determined, by way of an affirmative letter ballot, that the extracting and editorial revision of National Electrical Code text included in NFPA 70A has been achieved without altering the technical intent of the 2005 edition of the National Electrical Code.
As the 2005 edition of the National Electrical Code is the parent document for the extracted text contained in NFPA 70A, any request for a formal interpretation of any text in NFPA 70A will be processed in accordance with the NFPA Regulations Governing Committee Projects as a formal interpretation of the 2005 edition of the National Electrical Code.
Prior to this 2005 edition, the most recent previous edition of NFPA 70A was the 2002 edition.
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