Hi.

Would somebody clear something up for me, please. I am not up on the information about NEIS/ANSI/NECA.

There is a PDF (sorry for another acronym) file with electrical symbols at http://www.americantech.org/eresources/resources.cfm

(Scroll down or search for "ELECTRICAL SYMBOLS")

I see some of the differences such as the symbol for a switch having a vertical line or not.

Are the symbols on the PDF considered outdated?

Thanks.