BS 4727-2 Group 15-1991 Glossary of electrotechnical power telecommunication electronics lighting and colour terms Terms particular to power engineering Overhead lines《电工、电力、电信、电子学.pdf
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1、BRITISH STANDARD BS 4727-2: Group 15:1991 IEC 50(466): 1990 Glossary of Electrotechnical, power, telecommunication, electronics, lighting and colour terms Part 2: Terms particular to power engineering Group 15: Overhead linesBS4727-2:Group 15:1991 This British Standard, having been prepared under th
2、e directionof the General Electrotechnical Standards PolicyCommittee, was publishedunder the authorityofthe Standards Boardand comes into effect on 28 February 1991 BSI 09-1999 The following BSI references relate to the work on this standard: Committee reference GEL/1 Draft for comment 77/25967 DC I
3、SBN 0 580 19458 2 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the General Electrotechnical Standards Policy Committee (GEL/-) to Technical Committee GEL/1, upon which the following bodies were represented: Association of Consulting Engin
4、eers British Broadcasting Corporation Department of Trade and Industry (Radiocommunications Division) EEA (the Association of Electronics, Telecommunications and Business Equipment Industries) Electricity Supply Industry in United Kingdom Institute of Physics Institution of Electrical Engineers Amen
5、dments issued since publication Amd. No. Date CommentsBS4727-2:Group15:1991 BSI 09-1999 i Contents Page Committees responsible Inside front cover National foreword ii Guide to the glossary iv 466-01 General terms 1 466-02 Mechanical design 5 466-03 Spans 8 466-04 Profiles 13 466-05 Conductor arrange
6、ments 15 466-06 Supports 18 466-07 Poles and brackets 20 466-08 Towers 21 466-09 Foundations 26 466-10 Bare conductors 30 466-11 Conductor fittings 36 466-12 Insulator sets Accessories 40 Index 52 Figure 466-1 43 Figure 466-2 44 Figure 466-3 45 Figure 466-4 46 Figure 466-5 47 Figure 466-6 48 Figure
7、466-7 48 Figure 466-8 48 Figure 466-9 49BS4727-2:Group 15:1991 ii BSI 09-1999 National foreword This Group of BS 4727-2 has been prepared under the direction of the General Electrotechnical Standards Policy Committee and is identical with IEC50(446):1990 “International Electrotechnical Vocabulary Ch
8、apter446:Overhead lines” published by the International Electrotechnical Commission (IEC). For ease of production purposes the definitions given in French and Russian have been retained, together with the translation of the terms (but not the definitions) given in German, Spanish, Italian, Dutch, Po
9、lish and Swedish. The glossary is divided into five Parts, each of which is subdivided into Groups. Each Group will comprise the terms and definitions used in a particular branch of electrical engineering and will be issued individually as soon as it is completed. This arrangement makes it possible
10、to add new Groups or review existing Groups at any time without affecting the remainder of the glossary. The five Parts of the glossary are as follows. Part 1: Terms common to power, telecommunications and electronics; Part 2: Terms particular to power engineering; Part 3: Terms particular to teleco
11、mmunications and electronics; Part 4: Terms particular to lighting and colour; Part 5: Terms particular to electromedical equipment. Fundamental and general terms common to power, telecommunications and electronics form Groups 01 and 02 of Part 1. Group 01 of Part 3 contains general terms. The speci
12、alist Groups (e.g. Groups 03 to 11 of Part 1) contain only the terms and definitions relating to their subject. As far as has been practicable all terms and definitions established in current usage and falling within the scope of this glossary have been included. Experience has shown that it is rare
13、ly possible to replace, or even to modify, a well established term no matter what the logical or aesthetic shortcomings of that term may be. Current usage has therefore been accepted as the authority for terms and their meaning except where there has been a very good reason for doing otherwise, e.g.
14、 where terms have been considered to be fundamentally wrong, ambiguous, superfluous or in need of standardization. Where two or more synonymous terms are in use, those which are deprecated are omitted from the body of the text but are entered in the alphabetical index with a cross-reference to the s
15、tandard term. In cases where it was felt that the time was not yet right to deprecate a synonym, preferred terms are given first and the other terms are printed in less prominent type to indicate the intention to deprecate them in the course of time. Where synonyms are considered of equal value they
16、 are shown in the same type. Where terms are used with different meanings in different branches of electrical engineering, appropriate definitions are given in the Groups of the glossary corresponding to these branches. Such a definition, when taken out of the context of its Group, should if possibl
17、e be quoted with a preamble indicating its proper context. It is to be noted that the given definition of a term represents the generally accepted meaning of that term. Under no circumstances should it be regarded as taking the place of a specification. As far as possible the terms are arranged in a
18、 logical order proceeding from the general to the specific and from the whole to the part, and allied terms are placed close together.BS4727-2:Group 15:1991 BSI 09-1999 iii In earlier editions of BS 4727, a special national numbering system was used, however, to facilitate publication of future edit
19、ions of BS 4727, only the International Electrotechnical Vocabulary numbering system is used. A general view of the position of the Group in the glossary can be obtained from the guide to the glossary. An alphabetical index of the terms of each Group is provided at the end of each Group to facilitat
20、e reference to particular terms. It is recommended that the user of any Group of the glossary should consider the Group in association with the Groups covering general or fundamental terms within the Part and with Groups 01 and 02 of Part 1. In this glossary parentheses ( ) enclose words or phrases
21、that are not part of the term or definition and can be omitted without affecting the meaning. Square brackets enclose words which may replace a preceding part of an expression. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are r
22、esponsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 70 and a back cover. This standard has been updated (see co
23、pyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS4727-2:Group 15:1991 iv BSI 09-1999 Guide to the glossary Part 1 Terms common to power, telecommunications and electronics Group 01 Fundamental terminology Group 02 Elect
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