American National Standard

American National Standard Canadian Standard IEEE Standard Graphic symbols for Electrical and Electronics Diagrams (Including Reference Designation Letters) Sponsor ANSI CSA Z99 1975 IEEE Std 315-1975 Revision of ANSI CSA Z99-1972 IEEE Std 315-1971 IEEE standards Coordinating Committee 11, Graphic symbols Secretariat for American National standards Committee Y32 American Society of Mechanical Engineers Institute of Electrical and Electronics Engineers Approved October 31,1975 American National standards Institute Approved October 9, 1975 Canadian standards Association Approved September 4, 1975 Institute of Electrical and Electronics Engineers Adopted for Mandatory Use October 31,1975 Department of Defense, United States of America , I Joseph L. Koepfinger, Chairman Jean Jacques Archambault Robert D.

This American National Standard is a revision and expansion of American National Standard Graphic Symbols for Electrical and Electronics Diagrams, Y32.2-1970 (IEEE Std 315-1971). A variety of specialized symbols originally used for aircraft applications have been added to make

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