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

By IEEE

ISBN-10: 1559374209

ISBN-13: 9781559374200

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

Example text

6 The broken line - — - indicates where line connection to a symbol is made and is not part of the symbol. 44 Copyright © 1975 IEEE All Rights Reserved --``,-`-`,,`,,`,`,,`--- Copyright The Institute of Electrical and Electronics Engineers, Inc. 11 Interrupted path Symbol normally used only when required for complex or special-purpose diagrams. 11A — To ensure continuity, the interrupted-path break points must be in alignment. 11B — The asterisk is not part of the symbol. Identifying values, letters, numbers, or marks shall replace the asterisk.

1 Power frequencies 13 Copyright © 1975 IEEE All Rights Reserved Copyright The Institute of Electrical and Electronics Engineers, Inc. 3. 2 2-phase 4-wire 14 Copyright The Institute of Electrical and Electronics Engineers, Inc. 2 3-phase, open-delta, grounded at middle point of one winding 15 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.

5 Crossing of paths or conductors not connected The crossing is not necessarily at a 90-degree angle. 2 Application: junction of paths, conductors, or cables. If desired, indicate path type, or size 40 Copyright The Institute of Electrical and Electronics Engineers, Inc. , may be indicated if desired. 4 Splice (if desired) of same size cables. Junction of conductors of same size or different size cables. 2A: The asterisk is not part of the symbol. Always replace the asterisk by one of the following letters: P T = Pair = Triple 41 Copyright © 1975 IEEE All Rights Reserved Copyright The Institute of Electrical and Electronics Engineers, Inc.

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


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