315-1975 R1993) IEEE Graphic Symbols for Electrical and by IEEE

Read or Download 315-1975 R1993) IEEE Graphic Symbols for Electrical and Electronic Diagrams Including Reference Designation Letters) Bound with its Supplement 315-1986 R1993 PDF

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Additional resources for 315-1975 R1993) IEEE Graphic Symbols for Electrical and Electronic Diagrams Including Reference Designation Letters) Bound with its Supplement 315-1986 R1993

Sample text

2 — Symbols for single-line (one-line) diagrams appear at the left, symbols for complete diagrams at the right, and symbols suitable for both purposes are centered in each column. 1. 38 Copyright © 1975 IEEE All Rights Reserved --``,-`-`,,`,,`,`,,`--- Copyright The Institute of Electrical and Electronics Engineers, Inc. Provided by IHS under license with IEEE No reproduction or networking permitted without license from IHS Not for Resale ELECTRICAL AND ELECTRONICS DIAGRAMS IEEE Std 315-1975 3. 1 Guided path, general A single line represents the entire group of conductors or the transmission path needed to guide the power or signal.

11B — The asterisk is not part of the symbol. Identifying values, letters, numbers, or marks shall replace the asterisk. 2 Distribution Lines Transmission Lines Commonly used on system diagrams, maps, and charts. 1 The following letters may be used to indicate type of transmission: F S T V telephony IEC sound (television) IEC telegraphy transmission of data IEC video (television) IEC 45 Copyright © 1975 IEEE All Rights Reserved Copyright The Institute of Electrical and Electronics Engineers, Inc.

1 3-phase, wye, grounded neutral The direction of the stroke representing the neutral can be chosen arbitrarily. 11 6-phase, double-delta 16 Copyright © 1975 IEEE All Rights Reserved --``,-`-`,,`,,`,`,,`--- Copyright The Institute of Electrical and Electronics Engineers, Inc. 10 Envelope Enclosure The general envelope symbol identifies the envelope or enclosure regardless of evacuation or pressure. When used with electron-tube component symbols, the general envelope symbol indicates a vacuum enclosure unless otherwise specified.

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