Historical
NECA 100-2013
Symbols for Electrical Construction Drawings (ANSI)
This publication describes graphic symbols used to represent electrical wiring and equipment on construction drawings. In this publication, the term “electrical” is used to include electrical, electronic, and communications systems covered by the National Electrical Code (NFPA 70). This publication also summarizes recommended drawing practices for electrical construction drawings.
The PDF version of NECA 100 includes: A link containing a .zip file with the NECA 100 AutoCad Symbol files can be downloaded from the Table of Contents. NOTE: It's a zip file, so it will immediately initiate a download. - See more at: http://apps.necanet.org/store/products/index.cfm/NECA%20100%2D13#sthash.AksRr1OQ.dpuf
National Electrical Contractors Association [neca]