This standard specifies electrical graphical symbols such as graphical symbol elements, limited graphical bows, and other general purpose graphical symbols.
JIS C 0617-2:1997 history
2011JIS C 0617-2:2011 Graphical symbols for diagrams -- Part 2: Symbol elements, qualifying symbols and other symbols having general application
1997JIS C 0617-2:1997 Graphical symbols for diagrams -- Part 2: Symbol elements, qualifying symbols and other symbols having general application