1、BRITISH STANDARD AEROSPACE SERIES BS EN 2591-208:1996 Elements of electrical and optical connection Testmethods Part 208: Temperature rise due to rated current The European Standard EN2591-208:1996 has the status of a British Standard ICS 49.060BSEN2591-208:1996 This British Standard, having been pr
2、epared under the directionof the Engineering SectorBoard, was published underthe authority of the Standards Board and comes intoeffect on 15June1996 BSI 11-1999 The following BSI references relate to the work on this standard: Committee reference ACE/6 Draft for comment 92/84575 DC ISBN 0 580 25958
3、7 Committees responsible for this British Standard The preparation of this British Standard was entrusted to Technical CommitteeACE/6, Aerospace avionic, electrical and fibre-optic technology, upon which the following bodies were represented: British Airways British Cable Makers Confederation Britis
4、h Rubber Manufacturers Association Civil Aviation Authority (Airworthiness Division) Federation of the Electronics Industry Ministry of Defence Society of British Aerospace Companies Amendments issued since publication Amd. No. Date CommentsBSEN2591-208:1996 BSI 11-1999 i Contents Page Committees re
5、sponsible Inside front cover National foreword ii Foreword 2 1 Scope 3 2 Normative references 3 3 Preparation of specimens 3 4 Apparatus 3 5 Method 3 List of references Inside back coverBSEN2591-208:1996 ii BSI 11-1999 National foreword This British Standard has been prepared by Technical Committee
6、ACE/6 and is the English language version of EN2591-208:1996 Aerospace seriesElements of electrical and optical connectionTest methodsPart208: Temperature rise due to rated current, published by the European Committee for Standardization (CEN). It supersedes BS EN2591-B8:1994 which is withdrawn. BS
7、EN2591-208:1996 was produced as a result of international discussions in which the UnitedKingdom took an active part. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a
8、 British Standard does not of itself confer immunity from legal obligations. Cross-references Publication referred to Corresponding British Standard IEC 50 (302) BS4727 Glossary of electrotechnical, power, telecommunication, electronics, lighting and colour terms Part 1 Terms common to power, teleco
9、mmunications and electronics Group 04:1986 Measurement terminology EN 2591 BS EN2591:1992 Elements of electrical and optical connection. Test methods. General Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages2 to4, an inside back c
10、over and a 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.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2591-208 February 1996 ICS 49.060 Supersedes EN2591-B8:199
11、3 Descriptors: Aircraft industry, aircraft equipment, connecting equipment, tests, measurements, temperature rise, rated currents English version Aerospace seriesElements of electrical and optical connectionTest methods Part208:Temperaturerisedue to rated current Srie arospatialeOrganes de connexion
12、 lectrique et optiqueMthodes dessais Partie208: Echauffement sous courant nominal Luft- und RaumfahrtElektrische und optische Verbindungselemente Prfverfahren Teil208: Erwarmung bei Nennstrom This European Standard was approved by CEN on1993-12-16. CEN members are bound to comply with theCEN/CENELEC
13、 Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN
14、member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN mem
15、bers are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisch
16、es Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1996 Copyright reserved to CEN members Ref. No. EN 2591-208:1996 EEN2591-208:1996 BSI 11-1999 2 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). The alphanu
17、merical designation of the Parts of EN2591 has been abandoned for a numerical designation in line with the Internal Regulations of CEN/CENELEC. This European Standard is the integral reproduction of the European Standard EN2591-B8 after application of this decision, without any other modification th
18、an the change in numbering. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by August1996, and conflicting national standards shall be withdrawn at the latest by August1996. According to the CEN/CENE
19、LEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and Uni
20、tedKingdom.EN2591-208:1996 BSI 11-1999 3 1 Scope This standard specifies a method for measuring the temperature rise in an element of connection due to rated current. It shall be used together with EN2591. 2 Normative references This European Standard incorporates by dated or undated reference provi
21、sions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it b
22、y amendment or revision. For undated references the latest edition of the publication referred to applies. IEC 50(302), International electrotechnical vocabularyChapter 302: Electrical measuring instruments. EN 2591, Aerospace seriesElements of electrical and optical connectionTest methodsGeneral. 3
23、 Preparation of specimens 3.1 Specimens shall be wired, contacts connected in series and mated. The cross-section and the type of wire connecting the contacts together shall be appropriate to the expected test current and temperature. The length of wire between two contacts shall be between250mm and
24、300mm. The supply cable length shall meet the test set-up requirements. The freely hanging specimen shall be fitted with temperature sensors. 3.2 Unless indicated in the technical specification, the following details shall be specified: mounting end sensitivity of temperature sensors; cross section
25、and type of wire; alternating or direct current; ambient temperature; maximum permissible temperature rise. 4 Apparatus The class of apparatus to be used shall be at least equal to0,5 seeIEC50(302). A regulated power supply shall be capable of delivering the specified current to 1% during the whole
26、test. 5 Method 5.1 Procedure The test shall be carried out with: direct current or alternating current r.m.s.,40Hz to60Hz. The sensors used shall not affect the temperature rise in the specimens or induce measurement errors. During the test, the specimen shall be protected from draughts by four non-
27、heat-reflecting shields which shall not affect the temperature rise. They shall be so installed as to allow a clearance of250mm to300mm around the specimen. During the test, the temperature of the environment close to the specimen shall be recorded when the temperature variation has not exceeded1 C
28、for30min or after a maximum of5h. 5.2 Requirement The measured value shall not be greater than that specified.4 blankBSEN2591-208:1996 BSI 11-1999 List of references See national foreword.BS EN 2591-208:1996 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independe
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