The document specifies graphical symbols for diagrams for representing conductors and connecting devices.
DIN EN 60617-3:1997 history
1997DIN EN 60617-3:1997-08 Graphical symbols for diagrams - Part 3: Conductors and connecting devices (IEC 60617-3:1996); German version EN 60617-3:1996
1997DIN EN 60617-3:1997 Graphical symbols for diagrams - Part 3: Conductors and connecting devices (IEC 60617-3:1996); German version EN 60617-3:1996