IEC 60268-1-1985 Sound system equipment Part 1 General《声系统设备 第1部分 总则》.pdf

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1、NORME INTERNATIONALE INTERNATIONAL STANDARD CEI IEC 268-1 Deuxime dition Second edition 1985 Equipements pour systmes lectroacoustiques Premire partie: Gnralits Sound system equipment Part 1: General IEC Numro de rfrence Reference number CEI/IEC 268-1: 1985Validit de la prsente publication Le conten

2、u technique des publications de la CEI est cons- tamment revu par la CEI afin qul reflte ltat actuel de la technique. Des renseignements relatifs la date de reconfirmation de la publication sont disponibles auprs du Bureau Central de la CEI. Les renseignements relatifs ces rvisions, ltablis- sement

3、des ditions rvises et aux amendements peuvent tre obtenus auprs des Comits nationaux de la CEI et dans les documents ci-dessous: Bulletin de la CEI Annuaire de la CEI Publi annuellement Catalogue des publications de la CEI Publi annuellement et mis jour rgulirement Terminologie En ce qui concerne la

4、 terminologie gnrale, le lecteur se reportera la CEI 50: Vocabulaire Electrotechnique Inter- national (VEI), qui se prsente sous forme de chapitres spars traitant chacun dn sujet dfini. Des dtails complets sur le VEI peuvent tre obtenus sur demande. Voir galement le dictionnaire multilingue de la CE

5、I. Les termes et dfinitions figurant dans la prsente publi- cation ont t soit tirs du VEI, soit spcifiquement approuvs aux fins de cette publication. Symboles graphiques et littraux Pour les symboles graphiques, les symboles littraux et les signes dsage gnral approuvs par la CEI, le lecteur consulte

6、ra: la CEI 27: Symboles littraux utiliser en lectro-technique; la CEI 417: Symboles graphiques utilisables sur le matriel. Index, relev et compilation des feuilles individuelles; la CEI 617: Symboles graphiques pour schmas; et pour les appareils lectromdicaux, la CEI 878: Symboles graphiques pour qu

7、ipements lectriques en pratique mdicale. Les symboles et signes contenus dans la prsente publi- cation ont t soit tirs de la CEI 27, de la CEI 417, de la CEI 617 et/ou de la CEI 878, soit spcifiquement approuvs aux fins de cette publication. Publications de la CEI tablies par le mme comit dtudes Ltt

8、ention du lecteur est attire sur les listes figurant la fin de cette publication, qui numrent les publications de la CEI prpares par le comit dtudes qui a tabli la prsente publication. Validity of this publication The technical content of IEC publications is kept under constant review by the IEC, th

9、us ensuring that the content reflects current technology. Information relating to the date of the reconfirmation of the publication is available from the IEC Central Office. Information on the revision work, the issue of revised editions and amendments may be obtained from IEC National Committees an

10、d from the following IEC sources: IEC Bulletin IEC Yearbook Published yearly Catalogue of IEC publications Published yearly with regular updates Terminology For general terminology, readers are referred to IEC 50: International Electrotechnical Vocabulary (IEV), which is issued in the form of separa

11、te chapters each dealing with a specific field. Full details of the IEV will be supplied on request. See also the IEC Multilingual Dictionary. The terms and definitions contained in the present publi- cation have either been taken from the IEV or have been specifically approved for the purpose of th

12、is publication. Graphical and letter symbols For graphical symbols, and letter symbols and signs approved by the IEC for general use, readers are referred to publications: I EC 27: Letter symbols to be used in electrical technology; I EC 417: Graphical symbols for use on equipment. Index, survey and

13、 compilation of the single sheets; IEC 617: Graphical symbols for diagrams; and for medical electrical equipment, I EC 878: Graphical symbols for electromedical equipment in medical practice. The symbols and signs contained in the present publication have either been taken from IEC 27, IEC 417, IEC

14、617 and/or IEC 878, or have been specifically approved for the purpose of this publication. IEC publications prepared by the same technical committee The attention of readers is drawn to the end pages of this publication which list the IEC publications issued by the technical committee which has prepared the present publication.

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