IEEE Std 315-1975 (Reaffirmed 1993)
`ANSI Y32.2-1975 (Reaffirmed 1989)
`CSA Z99-1975
`(Revision of IEEE Std 315-1971
`ANSI Y32.1-1972
`CSA Z99-1972)
`
`IEEE Standard
`American National Standard
`Canadian Standard
`
`Graphic Symbols for Electrical and
`Electronics Diagrams
`(Including Reference Designation Letters)
`
`Sponsor
`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 September 4, 1975
`Reaffirmed October 20, 1988
`Reaffirmed December 2, 1993
`IEEE Standards Board
`
`Approved October 31, 1975
`Reaffirmed January 16, 1989
`American National Standards Institute
`
`Approved October 9, 1975
`Canadian Standards Association
`
`Approved Adopted for Mandatory Use October 31, 1975
`Department of Defense, United States of America
`
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`IEEE Std 315-1975
`(ANSI Y32.2-1975)
`31 October, 1975
`
`Acceptance Notice
`
`The following Industry Standardization Document was adopted on 31 October 1975 for mandatory use by the DoD.
`The indicated industry groups have furnished the clearances required by existing regulations. Copies of the documents
`are stocked by DoD Single Stock Point, Naval Publications and Forms Center, Philadelphia, PA, 19120, for issue to
`military activities only.
`
`Title of Document: Graphic Symbols for Electrical and Electronics Diagrams (Including Reference Designation Class
`Designation Letters)
`
`Document No. (a) IEEE Std 315-1975
`(b) ANSI Y32.2-1975
`
`Date of Specific Issue Adopted: (a) 4 September, 1975
`(b) 31 October, 1975
`
`Releasing Industry Group: (a) The Institute of Electrical and Electronics Engineers, Inc.
`(b) American National Standards Institute, Inc.
`
`Supersedes:
`
`IEEE Std 315-1971
`(ANSI Y32.2-1970)
`
`Custodians:
`Army - EL
`Navy - SH
`Air Force - 16
`
`Review Activities:
`Army - AV, MI, MU
`Navy AS, OS, SH, YD
`
`User Activities:
`Army - ME
`Navy - EC, MC
`
`Military Coordinating Activity:
`Army - EL
`
`Project Number: DRPR-0176
`
`Certain provisions of this standard are subject of International Standardization Agreement, ABC NAVY STD-28A,
`Symbols and Abbreviations for Electrical and Electronics Drawings, to which the U.S. Army also subscribes. When
`reaffirmations, amendment, revision, or cancellation of this standard is proposed which will effect or violate the
`international agreement concerned, the Military Coordinating Activity will take appropriate reconcilliation action
`through military international standardization channels including departmental standardization offices, if required.
`
`NOTICE: When reaffirmation, amendment, revision, or cancellation of this standard is initially proposed, the
`cognizant secretariat of the industry standard shall inform the Military Coordinating Activity of the proposed change
`and request their participation.
`
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`Preface to CSA Standard Z99-1975 C11B
`
`Graphic Symbols for Electrical and Electronics Diagrams
`
`REXDALE, October 9, 1975
`
`American National Standard Y32.2-1975 (IEEE Std 315-1975), with the modifications shown in Section 100, has been
`approved as CSA Standard Z99. This action was proposed by the Committee on Electrical Symbols, under the
`jurisdiction of the Sectional Committee on Abbreviations, Definitions and Symbols and was formerly approved by
`these Committees.
`
`See Section 100, Canadian Standard Z99 modifications to American National Standard Y32.2-1975 on page 83.
`
`NOTE: In order to keep abreast of progress in the industries concerned, CSA publications are subject to periodic
`review. Suggestions for improvement will be welcomed at all times. They will be recorded and in due course brought
`to the attention of the appropriate Committee for consideration.
`
`Also, requests for interpretation will be accepted by the Committee. They should be worded in such a manner as to
`permit a simple “yes” or “no” answer based on the literal text of the requirement concerned.
`
`All inquiries regarding this standard should be addressed to Canadian Standards Association, 178 Rexdale Boulevard,
`Rexdale, Ontario M9W 1R3, Canada.
`
`IEEE Standards Board
`
`Jean Jacques Archambault
`Robert D. Briskman
`Dale R. Cochran
`Louis Costrell
`Frank Davidoff
`Jay Forster
`Irvin N. Howell, Jr
`Stuart P. Jackson
`
`Approved September 4, 1975
`
`Joseph L. Koepfinger, Chair
`Warren H. Cook, Vice Chair
`Sava I. Sherr, Secretary
`
`Irving Kolodny
`William R. Kruesi
`Benjamin J. Leon
`Anthony C. Lordi
`Donald T. Michael
`Voss A. Moore
`William S. Morgan
`William J. Neiswender
`
`Gustave Shapiro
`Ralph M. Showers
`Robert A. Soderman
`Leonard Thomas
`Charles L. Wagner
`William T. Wintringham
`
`Copyright © 1975 by the Institute of Electrical and Electronics Engineers, Inc. No part of this publication may be
`reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the
`publisher. However, individual symbols contained in this standard may be utilized without further permission of the
`IEEE. Any statement that the symbols used are in conformance with this standard shall be on the user’s own
`responsibility.
`
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`IEEE Std 315-1975
`
`GRAPHIC SYMBOLS FOR
`
`2.2.14 Application: capacitor-bushing potential device
`
`2.2.15 Application: carrier-coupling capacitor potential device (used to provide a power-system-frequency voltage
`and also coupling for carrier signals)
`
`NOTE — 2.2.15A: The dagger is not part of the symbol. If specific indication is desired, the dagger is to be replaced by a letter
`combination from item 12.1, Note 12.1A.
`
`2.2.16 Application: coupling capacitor potential device (used only to provide a power-system-frequency voltage)
`
`2.3 Antenna
`
`F
`
`2.3.1 General
`
`Types of functions may be indicated by words or abbreviations adjacent to the symbol.
`
`Qualifying symbols may be added to the antenna symbol to indicate polarization, direction of radiation, or special
`application.
`
`If required, the general shape of the main lobes of the antenna polar diagrams may be shown adjacent to the symbol.
`Notes may be added to show the direction and rate of lobe movement.
`
`The stem of the symbol may represent any type of balanced or unbalanced feeder, including a single conductor.
`
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`
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`ELECTRICAL AND ELECTRONICS DIAGRAMS
`
`IEEE Std 315-1975
`
`2.3.1.1 Application: turnstile antenna
`
`2.3.2 Dipole
`
`2.3.3 Loop
`
`2.3.4 Antenna counterpoise
`
`F
`
`2.3.5 Qualifying symbols to indicate polarization
`
`Use only if essential to indicate special property of an antenna.
`
`2.3.5.1 Plane polarization
`
`Copyright © 1975 IEEE All Rights Reserved
`
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`IEEE Std 315-1975
`
`GRAPHIC SYMBOLS FOR
`
`2.3.5.2 Application: antenna with horizontal polarization
`
`2.3.5.3 Application: antenna with vertical polarization
`
`2.3.5.4 Circular polarization
`
`2.3.5.5 Application: antenna with circular polarization
`
`2.3.6 Qualifying symbols to indicate direction of radiation
`
`Use only if essential to indicate special property of an antenna.
`
`NOTES:
`
`2.3.6A — Any applicable adjustability symbol (item 1.1) may be used to supplement a qualifying symbol.
`
`2.3.6B — Antenna rotation can be accomplished by electromechanical or electronic means.
`
`2.3.6.1 Fixed in azimuth
`
`2.3.6.2 Adjustable in azimuth
`
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`ELECTRICAL AND ELECTRONICS DIAGRAMS
`
`IEEE Std 315-1975
`
`5.1.2.3 Device with base-orientation key
`
`See Note 5.1.2A
`
`5.1.2.4 Devices with reference point (such as a boss, colored dot, index pin, index tab, or bayonet pin)
`
`5.1.2.5 Terminals connected to metallic envelope or enclosure
`
`5.2 Cable Termination
`
`Line shown on left of symbol indicates cable.
`
`5.3 Connector
`Disconnecting Device
`Jack
`Plug
`
`F F
`
`The contact symbol is not an arrowhead. It is larger and the lines are drawn at a 90-degree angle.
`
`5.3.1 Female contact
`
`5.3.2 Male contact
`
`Copyright © 1975 IEEE All Rights Reserved
`
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`IEEE Std 315-1975
`
`GRAPHIC SYMBOLS FOR
`
`5.3.3 Connector assembly, movable or stationary portion; jack, plug, or receptacle
`
`NOTE — 5.3.3A: Use appropriate number of contact symbols.
`
`5.3.3.1 Receptacle or jack (usually stationary)
`
`NOTE — 5.3.3.1A: The asterisk is not part of the symbol. If desired, indicate the type of contacts: male (→) or female (
`
`).
`
`5.3.3.2 Plug (usually movable)
`
`5.3.4 Separable connectors (engaged)
`
`5.3.4.1 Application: engaged 4-conductors (female plug male receptacle shown)
`
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