It is what the electrical code book in the United States is called. In questions and answers it is usually shortened to the letters NEC.
It does not
It is a electrical code rule taken from the National Electrical Code book. It has to do with multi wire branch circuits.
The most current edition of the National Electrical Code. At this time it is "NEC 2008."
The paperback version of the 2005 NEC code book has 792 pages. It is written by the National Fire Protection Agency. It is the standart for electrical and wiring regulations.
Yes, they are required by the national electric code.
Not an electrical code issue
It does not
It is a electrical code rule taken from the National Electrical Code book. It has to do with multi wire branch circuits.
The most current edition of the National Electrical Code. At this time it is "NEC 2008."
You can get the National Electrical Code book at electrical supply stores, online and off line book stores or you can order it straight from the NFPA (National Fire Protection Agency). See related links below for the NFPA's website.
One copy of the 1897 National Electrical code was sold on eBay August 2, 2007 for $1,225. plus an $11.26 shipping charge.
In the National Electric Code Book or in an Ugly's Electrical Reference book.
National Electrical Code
role of national electric code in the design of electrical installation
The paperback version of the 2005 NEC code book has 792 pages. It is written by the National Fire Protection Agency. It is the standart for electrical and wiring regulations.
NFPA 70
Yes, they are required by the national electric code.