1、BRITISH STANDARD AEROSPACE SERIES BS EN 2591-401:1996 Elements of electrical and optical connection Testmethods Part 401: Acceleration, steady state The European Standard EN2591-401:1996 has the status of a British Standard ICS 49.060BSEN2591-401:1996 This British Standard, having been prepared unde
2、r the directionof the Engineering SectorBoard, was published underthe authority of the Standards Board and comesintoeffect on 15June1996 BSI 01-2000 The following BSI references relate to the work on this standard: Committee reference ACE/6 Draft for comment 91/74943 DC ISBN 0 580 25961 7 Committees
3、 responsible for this BritishStandard The preparation of this British Standard was entrusted to Technical Committee ACE/6, Aerospace avionic, electrical and fibre-optic technology, upon which the following bodies were represented: British Airways British Cable Makers Confederation British Rubber Man
4、ufacturers 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 CommentsBSEN2591-401:1996 BSI 01-2000 i Contents Page Committees responsible In
5、side front cover National foreword ii Foreword 2 1 Scope 3 2 Normative references 3 3 Preparation of the specimens 3 4 Apparatus 3 5 Method 3 Table 1 3 List of references Inside back coverBSEN2591-401:1996 ii BSI 01-2000 National foreword This British Standard has been prepared by Technical Committe
6、e ACE/6 and is the English language version of EN2591-401:1996 Aerospace series Elements of electrical and optical connection Test methods Part 401: Acceleration, steady state, published by the European Committee for Standardization (CEN). It supersedes BSEN2591-D1:1992 which is withdrawn. BSEN2591-
7、401:1996 was produced as a result of international discussions in which the United Kingdom took an active part. Cross-references The British Standards corresponding to the European Standards referred to in the text are identical in number and title with those given in clause2 with the exception of E
8、N2591-408 which is in preparation by CEN. It is envisaged that upon publication of EN2591-408 it will be implemented as a British Standard. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct applicat
9、ion. 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 and ii, theEN title page, pages 2 to 4, an inside back cover and a back cover. This standard has been updated (see
10、 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 EN2591-401 February 1996 ICS 49.060 Supersedes EN 2591-D1:1992 Descriptors: Aerospace industry, aircraft equipment, ele
11、ments of electrical and optical connection, test English version Aerospace series Elements of electrical and optical connection Test methods Part401:Acceleration,steady state Srie arospatiale Organes de connexion lectrique et optique Mthodes dessais Partie 401: Accleration constante Luft- und Raumfa
12、hrt- Elektrische und optische Verbindungselemente- Prfverfahren Teil401: Konstante Beschleunigung This European Standard was approved by CEN on1992-10-19. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the st
13、atus 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 member. This European Standard exists in three official versions (English, French, German). A
14、 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 members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany
15、, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1996 All righ
16、ts of reproduction and communication in any form and by any means reserved in all countries to CEN and its members. Ref. No. EN 2591-401:1996 EEN2591-401:1996 BSI 01-2000 2 Foreword This European Standard has been prepared by the European Association of Aerospace Manufacturers (AECMA). The alphanume
17、rical 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-D1 after application of this decision, without any other modification than
18、 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/CENELE
19、C 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 Unite
20、d Kingdom.EN2591-401:1996 BSI 01-2000 3 1 Scope This standard specifies a method to determine the ability of an element of connection to withstand steady-state accelerations. It shall be used together with EN2591. 2 Normative references This European Standard incorporates by dated or undated referen
21、ce provisions 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
22、 in it by amendment or revision. For undated references the latest edition of the publication referred to applies. EN 2591, Aerospace series Elements of electrical and optical connection Test methods General. EN 2591-101, Aerospace series Elements of electrical and optical connection Test methods Pa
23、rt 101: Visual examination. EN 2591-201, Aerospace series Elements of electrical and optical connection Test methods Part 201: Contact resistance Low level. EN 2591-202, Aerospace series Elements of electrical and optical connection Test methods Part 202: Contact resistance at rated current. EN 2591
24、-204, Aerospace series Elements of electrical and optical connection Test methods Part 204: Discontinuity of contacts in the microsecond range. EN 2591-408, Aerospace series Elements of electrical and optical connection Test methods Part 408: Mating and unmating forces 1) . 3 Preparation of the spec
25、imens 3.1 They shall be fitted with their standard accessories, mounted so that all mechanical features (fixing, locking device .) are fully used, and wired. The test shall be carried out on mated specimens. 3.2 Unless indicated in the technical specification or EN2591, the following details shall b
26、e specified: method of mounting and wiring of the specimen; initial measurements and requirements; acceleration level; requirements for final measurements; number of directions. 4 Apparatus The test shall be carried out in a centrifugal machine capable of producing the acceleration values specified.
27、 The acceleration gradient in the specimen shall not exceed10% of the steady-state specified value. If the dimensions of the specimen are smaller than100mm, the acceleration applied at any point on the specimen shall not deviate by 10% of the steady-state specified value; otherwise the acceleration
28、is applied to the specimen mounting plane within the 10% of the steady-state specified value limits. 5 Method 5.1 Initial measurements (if applicable) Initial measurements shall be carried out in accordance with the technical specification. 5.2 Acceleration level SeeTable 1 Table 1 5.3 Procedure The
29、 specimen shall be submitted to the acceleration for5min in each of both directions of the three tri-rectangular axes so that the total duration of the test is30min. During the test, a check of the electrical discontinuity of the contacts in the microsecond range (test EN2591-204) shall be carried o
30、ut. The duration of discontinuity shall not exceed the value specified. The specimen shall reach the acceleration value within a period of time greater than1min. 5.4 Final measurements (if applicable) The specimen shall be submitted to the following tests: EN 2591-101: Visual examination; EN 2591-40
31、8: Mating and unmating forces; EN 2591-201 or 202: Contact resistance Low level or at rated current. 1) Published as AECMA Prestandard at the date of publication of the present standard m/s 2 g (approx.) 200 20 500 50 1 000 100 2 500 250 5 000 5004 blankBSEN2591-401:1996 BSI 01-2000 List of referenc
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