Links

National Electrical Code

Electrical Association of Philadelphia

International Code Council

National Electrical Contractors Association (NECA)

International Association of Electrical Inspectors

National Electrical Manufacturers Association

City of Philadelphia

The Independent Electrical Contractors Association of Philadelphia & Vicinity (IECA)

Underwriter's Labratories
Certifcations Directory
Code Correlation Database
UL University

Purchased Publications
International Association of Electrical Inspectors
www.constructionbook.com
www.amazon.com
Code Check

Free Publications
Peco Blue Book
Electrical Construction and Maintenance

Suppliers
Colonial Electric
Billows
Grainger
Fox Electric Supply
Lindley Electric

Downloads

Eaton Corporation "Back-Fed" Circuit Breakers (PDF)
PDF file from Eaton Corporation providing an explanation of "Back-Fed" Circuit Breakers along with a complete summary on page 2 of Eaton's circuit breakers approved for back-feeding and those NOT approved for back feeding.