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

Read Online or Download 315-1975 (R1993) IEEE Graphic Symbols for Electrical and Electronics Diagrams (Including Reference Designation Letters) Bound with 315A-1986 (R1993) Supplement to IEEE Std 315-1986 PDF

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Additional resources for 315-1975 (R1993) IEEE Graphic Symbols for Electrical and Electronics Diagrams (Including Reference Designation Letters) Bound with 315A-1986 (R1993) Supplement to IEEE Std 315-1986

Example text

1 General, electrical output 4 The broken line - — - indicates where line connection to a symbol is made and is not part of the symbol. 2A: Explanatory words and arrows are not part of the symbols shown. 14 Thermal Element Thermomechanical Transducer Actuating device, self-heating or with external heater. 1 for fuses, one-time devices. 5 for thermally operated relay. 1). 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.

12A — If it is essential to denote on a system-type interconnection wiring diagram that the connector or cable is furnished with the equipment by the equipment manufacturer the following symbol shall be used. 20 inch diameter circle. 13A: The longer line represents the positive pole. Cross References See also Section 19. 1). 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.

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. A gas-filled device may be indicated by a dot within the envelope symbol. , cathode-ray tube, iconoscope, image orthicon, vidicon, X-ray tube, etc. 2. 2 Split envelope If necessary, envelope may be split. 3 Application: gas-filled envelope The gas-recognition symbol (dot) may be located as convenient.

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