Source google image: http://docs.autodesk.com/ACAD_E/2014/FRA/images/GUID-C20363D8-ED74-4C88-A630-681B80E9ACAB-low.gif
Autocad schéma électrique
Source google image: http://docs.autodesk.com/ACAD_E/2014/FRA/images/GUID-C20363D8-ED74-4C88-A630-681B80E9ACAB-low.gif