1、 = 4855212 05217b5 2b4 Rec. ITU-R V.461-5 SECTION B: GRAPHICAL SYMBOLS RECOMMENDATION ITU-R V.46 1-5 87 GRAPHICAL SYMBOLS AND RULES FOR THE PREPARATION OF DOCUMENTATION IN TELECOMMUNICATIONS (1970-1974-1978- 1982-1 990- 1993) ITU Radiocommunication Assembly, a) which cooperates in the work of the IT
2、UhEC Joint Working Group set up for the purpose of establishing internationally agreed graphical symbols and rules for the preparation of documentation and for item designations (see ITU-T Recommendation A. 13 and Resolution ITU-R 32), recommends 1. that, on diagrams for international use concerning
3、 telecommunications, the administrations and recognized operating agencies and the BR should use the graphical symbols for diagrams given in International Electrotechnical Commission IEC Series 617 publications and should observe the rules for the preparation of documentation and for item designatio
4、n laid down in IEC Publication 113 and 750. Administrations wishing to use symbols on equipment are recommended to refer to IEC Publication 417. Note 1 - References of relevant publications (updated in 1993): ZEC Publication 113: “Diagrams, charts, tables” 1 13-1 (1971) (Definitions and classificati
5、on) 1 13-2 (1 97 1) (Item designation of components) replaced by Publication 750 113-3 (1974) (General recommendations for the preparation of diagrams) 1 13-4 (1975) (Recommendations for the preparation of circuit diagrams) 113-5 (1975) (Preparation of interconnection diagrams and tables) 113-6 (197
6、6 and Amend. 1, 1983) (Preparation of unit writing diagrams and tables) 113-7 (1981) (Preparation of logic diagrams) 113-8 (1982 and Amend. 1, 1983) (Preparation of diagrams for system manuals) IEC Publication I 17: “Recommended graphical symbols” replaced by Publication 61 7 ZEC Publication 416 (19
7、88): “General principles for the formulation of graphical symbols” IEC Publication 417 (1973 and 11 Supplements 417 to 417K of 1974, 1975, 1977, 1978, 1980, 1982, 1985 and 1987, 1990, 1991, 1993): “Graphical symbols for use on equipment” 88 Rec. ITU-R V.461-5 IEC Publication 61 7: “Graphical symbols
8、 for diagrams” 617-1 (1985) 617-2 (1983) 617-3 (1983) 617-4 (1983) 617-5 (1983) 617-6 (1983) 617-7 (1983) 617-8 (1983) 617-9 (1983) 617-10 (1983) 617-1 1 (1983) 617-12 (1991) 617-13 (1993) (General information, General Index. Cross-reference tables) (Symbol elements, qualifying symbols and other sym
9、bols having general application) (Conductors and connecting devices) (Passive components) (Semi-conductor and electron tubes) (Production and conversion of electrical energy) (Switchgear, control gear and protective devices) (Measuring instruments, lamps and signalling devices) (Telecommunications: Switching and peripheral equipment) (Telecommunications: Transmission) + Mod. No. 1 (1987) (Architectural and topographical installation plans and diagrams) (Binary logic elements) + Mod. No. 1 (1992) (Analogue elements) IEC Publication 750 (1983): “Item designation in electrotechnology”
