BS 4727-2 Group 10-1985 Glossary of electrotechnical power telecommunication electronics lighting and colour terms - Terms particular to power engineering - Industrial electroheati.pdf

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1、BRITISH STANDARD BS 4727-2: Group 10:1985 Glossary of Electrotechnical, power, telecommunication, electronics, lighting and colour terms Part 2: Terms particular to power engineering Group10: Industrial electroheating terminology UDC 001.4:621.3+628.9+535:621.36BS4727-2:Group10:1985 This British Sta

2、ndard, having been prepared under the directionof the General Electrotechnical Engineering Standards Committee, was published under the authority ofthe Board of BSI and comes intoeffect on 29March1985 BSI 09-1999 The following BSI references relate to the work on this standard: Committee reference G

3、EL/1 Draft for comment78/31628DC ISBN 0 580 14364 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the General Electrotechnical Engineering Standards Committee (GEL/-) to Technical Committee GEL/1, upon which the following bodies were repre

4、sented: Association of Consulting Engineers British Broadcasting Corporation Electricity Supply Industry in England and Wales Electronic Engineering Association Institute of Physics Institution of Electrical Engineers Ministry of Defence Power Generation Association (BEAMA Ltd.) Radio and Electronic

5、s Technical Press Telecommunication Engineering and Manufacturing Association (TEMA) The following body was also represented in the drafting of the standard, through sub-committees and panels: Energy Industries Council Amendments issued since publication Amd. No. Date of issue CommentsBS4727-2:Group

6、10:1985 BSI 09-1999 i Contents Page Committees responsible Inside front cover Foreword ii Guide to the Glossary iv 210 1 Terms common to several methods of heating 1 210 11 General terms 1 210 12 Furnace technology and operation 5 210 13 Applications 9 210 2 Terms related to particular methods of he

7、ating 13 210 21 Resistance heating 13 210 22 Infra-red heating 15 210 23 Arc heating 16 210 24 Induction heating 21 210 25 Dielectric heating 23 210 26 Microwave heating 24 210 27 Electron beam heating 25 210 28 Plasma heating 26 Alphabetical index 28BS4727-2:Group10:1985 ii BSI 09-1999 Foreword Thi

8、s Group of Part2 of BS4727, prepared under the direction of the General Electrotechnical Engineering Standards Committee, contains terms and definitions relating to industrial electroheating. The text of this Part of BS4727 is identical with the English text of Chapter841, first edition, 1983, of th

9、e International Electrotechnical Vocabulary, published by the International Electrotechnical Commission (IEC). The following errors should be noted: a) In2101215, the note should read “The bottom is formed by separate sections, shaped for example like orange segments, petals or clam shells”. b) In21

10、01268, “Balance gas” should read “Balanced gas”. BS4727 combines into one glossary the subjects previously covered by BS204“Glossary of terms used in telecommunications (including radio) and electronics”, BS205 “Glossary of terms used in electrical engineering”, BS233“Glossary of terms used in illum

11、ination and photometry” and BS1611“Glossary of colour terms used in science and industry”. These four glossaries have now been withdrawn. The glossary is divided into four main Parts, each of which is further subdivided into Groups. Each Group will comprise the terms and definitions used in a partic

12、ular branch of electrical engineering and will be issued individually as soon as it is completed. This arrangement makes it possible to add new Groups or revise existing Groups at any time without affecting the remainder of the glossary. The four main Parts of the glossary are as follows. Part1: Ter

13、ms common to power, telecommunications and electronics; Part2: Terms particular to power engineering; Part3: Terms particular to telecommunications and electronics; Part4: Terms particular to lighting and colour. Fundamental and general terms common to power, telecommunications and electronics respe

14、ctively form the first two Groups of Part1. General terms particular to Part2 and Part3 similarly form the first Groups of their respective Parts. The specialist Groups contain only the terms and definitions relating to their subject. As far as has been practicable all terms and definitions establis

15、hed in current usage and falling within the scope of this glossary have been included. Experience has shown that it is rarely 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 acc

16、epted as the authority for terms and their meanings except where there has been a very good reason for doing otherwise, e.g.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

17、 deprecated are omitted from the body of the text but are entered in the alphabetical index with a cross-reference to the standard term. In cases where it was felt that the time was not yet right to deprecate a synonym, preferred terms are given first and other terms are printed in less prominent ty

18、pe to indicate the intention to deprecate them in the course of time. Where synonyms are considered of equal value they are shown in the same type. Where terms are used with somewhat different meanings in different branches of electrical engineering, appropriate definitions are given in the Groups o

19、f the glossary corresponding to these branches. Such a definition, when taken out of the context of its Group, should always 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

20、 circumstances should it be regarded as taking the place of a specification.BS4727-2:Group10:1985 BSI 09-1999 iii An effort has been made to arrange the terms in a logical order proceeding from the general to the specific and from the whole to the part and placing allied terms in proximity. Each ter

21、m has assigned to it a Part number (one digit) and a Group number of two digits followed by a space and four digits, the first digit of which represents the section, the second digit the subsection and the last two digits the place within the subsection. The International Electrotechnical Vocabulary

22、 employs a different numbering system and for convenience the IEV number is given in parentheses after the BS number for each term. A general view of the arrangement of the Group in the glossary can be obtained from the guide to the glossary. An alphabetical index of the terms of the Group is provid

23、ed at the end to facilitate reference to particular terms. For simplicity, only the last four digits of a terms number are quoted in the index. 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

24、within the Part, for Parts2 and3, and also together with Groups01 and02 of Part1. In this glossary parentheses () enclose words or phrases that are not part of the term of definition and can be omitted without affecting the meaning. A British Standard does not purport to include all the necessary pr

25、ovisions of a contract. Users of British Standards are responsible 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, pagesi toiv, pages1to30 and a

26、 back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.BS4727-2:Group10:1985 iv BSI 09-1999 Guide to the glossary Part1 Terms common to power, telecommunications and electronic

27、s Group01 Fundamental terminology Group02 Electrical and magnetic devices terminology Group03 Relay terminology Group04 Measurement terminology Group05 Semiconductor terminology Group06 Electronic tube terminology Group07 Magnetism terminology Group08 Piezo-electric device terminology Group09 Radio

28、interference terminology Group Radiological terminology a Group Integrated electronic circuit terminology a Titles to any further groups will be added in due course. Part2 Terms particular to power engineering Group01 General power terminology Group02 Static converter terminology Group03 Rotating ma

29、chinery terminology Group04 Transformer terminology Group05 Voltage fluctuation terminology Group06 Switchgear and controlgear terminology (including fuse terminology) Group07 Tariffs terminology Group08 Power cable terminology Group09 Transductor terminology Group10 Industrial electroheating termin

30、ology Group Power systems terminology a Group Systems operation terminology a Group Traction terminology a Titles to any further groups will be added in due course. Part3 Terms particular to telecommunications and electronics Group01 General telecommunication and electronics terminology Group02 Tele

31、phony terminology Group03 Telegraphy, including facsimile, terminology Group04 Broadcasting, radio and television terminology Group05 Propagation and media terminology Group06 Radio location and navigation terminology Group07 Radiocommunication terminology Group08 Electro-acoustics terminology a Gro

32、up09 Waveguide terminology Group10 Recording and reproduction of sound and video terminology Group11 Space radio communications terminology Titles to any further groups will be added in due course. Part4 Terms particular to lighting and colour Group01 Radiation and photometry terminology Group02 Vis

33、ion and colour terminology Group03 Lighting technology terminology a Not yet published, as at March1985.BS4727-2:Group10:1985 BSI 09-1999 1 210 1 Terms common to several methods of heating 210 11 (841-01) General terms No. Term Definition 210 1101 (841-01-01) electroheat The branch of science and te

34、chnology dealing with the transformation of electrical energy into thermal energy for useful purposes. 210 1102 (841-01-02) electrothermal Qualifies all techniques related to electroheat, or all devices which function in accordance with its principles. 210 1103 (841-01-03) electroheat technology The

35、 technique relating to the generation and application of heat in all fields of electric heating. 210 1104 (841-01-04) industrial electroheat Electroheat applied by industry. 210 1105 (841-01-05) electroheat equipment An appliance or assembly of technological devices for converting electrical energy

36、into thermal energy. 210 1106 (841-01-06) electroheat installation An installation composed of an electroheat equipment and the electrical and mechanical equipment needed for its operation and use. 210 1107 (841-01-07) electric heating The deliberate production of heat by electrical phenomena. 210 1

37、108 (841-01-08) direct electric heating An electric heating process in which the current passes through the material to be heated. 210 1109 (841-01-09) indirect electric heating An electric heating process in which the heat generated is transferred to the material to be heated. 210 1110 (841-01-10)

38、electric surface heating The heat generated in the surface layer of a body to be heated by electrical means in order to raise or maintain its temperature. 210 1111 (841-01-11) through heating The heating of a workpiece throughout to a temperature as uniform as possible. 210 1112 (841-01-12) localize

39、d heating The heating of a confined area of a body. 210 1113 (841-01-13) stored heat The heat which is put into a material of high specific heat and/or high latent heat primarily for later utilization. 210 1114 (841-01-14) useful heat The quantity of heat which is usable during the total heating. 21

40、0 1115 (841-01-15) recuperative heat The quantity of heat which is not usable during the total heating process and which can be recuperated. 210 1116 (841-01-16) thermal losses The quantity of heat lost during the heating process, being the difference between the total heat input and useful heat. 21

41、0 1117 (841-01-17) thermal insulation The material used to reduce heat transfer between two media. 210 1118 (841-01-18) working temperature The temperature which is required for treatment of the charge material.BS4727-2:Group10:1985 2 BSI 09-1999 No. Term Definition 210 1119 (841-01-19) operating te

42、mperature The temperature at which an electroheat equipment operates. 210 1120 (841-01-20) maximum continuous operating temperature The highest temperature at which an electroheat equipment can be operated continuously. 210 1121 (841-01-21) rated temperature The temperature normally used for which t

43、he furnace or electroheating equipment is designed. 210 1122 (841-01-22) stand-by losses; standing losses The power consumed by electroheating equipment to maintain the rated temperature at the steady state only. 210 1123 (841-01-23) Joule effect The phenomenon in which a current produces heat in a

44、material at a rate proportional to the resistivity of the material and to the square of the current density. 210 1124 (841-01-24) skin effect The phenomenon in which the r.m.s. density of a time-varying current is greater nearer the surface of a conductor than in its interior. 210 1125 (841-01-25) p

45、inch effect The phenomenon of contraction, with increasing current, of the current-carrying cross-section of a fluid. 210 1126 (841-01-26) mains frequency The frequency of the a.c. public supply; usually50Hz or60Hz. 210 1127 (841-01-27) low frequency a A frequency lower than or equal to60Hz. 210 112

46、8 (841-01-28) medium frequency a A frequency higher than60Hz and lower than or equal to10kHz. 210 1129 (841-01-29) high frequency a A frequency higher than10kHz and lower than or equal to300MHz. 210 1130 (841-01-30) hyperfrequency a A frequency higher than300MHz and lower than or equal to300GHz. 210

47、 1131 (841-01-31) efficiency of an electroheat installation The ratio of the energy transformed into useful heat to the total electrical energy supplied to produce this useful heat. 210 1132 (841-01-32) heat capacity The quantity of heat which may be absorbed by a body. 210 1133 (841-01-33) specific

48、 heat capacity The quantity of heat in joules necessary to raise the temperature of1kilogram of substance through1kelvin. 210 1134 (841-01-34) molar reaction heat The quantity of heat which is evolved per mole during a chemical reaction. 210 1135 (841-01-35) molar reduction heat The quantity of heat

49、 per mole which it is necessary to add during a chemical reaction. 210 1136 (841-01-36) latent heat The quantity of heat involved to change the state or structure of a substance when at constant temperature and pressure. 210 1137 (841-01-37) freezing-point; solidification point The temperature at which a chemically pure substance changes from liquid to solid state at a given pressure. a This frequency classification applies for use of electroheat equipment.BS4727-2:Group10:1985 BSI 09-1999 3 No. Term Definition 210 1138 (841-01-38) melting-point The temperature a