1、BSI BS*EN*2991 b Lb24669 0569340 748 = BRITISH STANDARD AEROSPACE SERIES Nickel-cadmium batteries of format E type * * VI The European Standard EN 2991 : 1996 has the status of a British Stan- ICs 29.220.30 49. NO COPYING WTHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BS EN 2991 : 1996 B
2、S EN 2991 : 1996 AmdNo. Date Committees responsible for this British Standard Text affected “he preparation of this British Standard was entrusted to Technical Committee ACW6, Aerospace batteries, upon which the following bodies were represented British Airways British Cable Makem Confederation Brit
3、ish Rubber Manufacturers Association Civii Aviation Authority (Airworthiness Division) Feeration of the Electroni- Industry Ministry of Defence Society of Brim Aerospace Companies Ltd. This British Standard, having been prepared under the direction of the Engineering Sector Board, was pubiished unde
4、r the authority of the Standards Board and comes into effect on 15 November 1996 O BSI 1996 The following BSI references relate to the work on this standard Committee reference ACW6 Draft for comment 9Y3156 DC ISBN O 680 26329 O - BSI BS*EN*2771 96 I1624667 0569142 510 BS EN 2991 : 1996 Contents Com
5、mittees responsible Nationai foreword page Inside front cover ii Foreword 1 scope 2 Normative references 3 CharatristiCs 4 Designation 6 Marking 6 Logbook 7 Technicalspecification O BSI 1996 i BSI BS*EN*ZL 96 = 1b24bb 0567143 457 = BS EN 2991 : 1996 National foreword I This British Stanard has been
6、prepared by Technical Committee ACEY6 and is the English language version of EN 2991 : 1996 Amspae series - Nickel-cadmium batteries of ft E type published by the European Committee for standardization (CEN). EN 2991 was produced as a result of international discussion in which the United Kingdom to
7、ok an active part Cross-reference Publication referred to EN 2670 : 1996 Corresponding British Standard BS EN 2670 : 1996 NiD EN 2991 NORME EUR0PEE”E EuROPAiscHE Nom July 1996 ICs 49.060 Descriptors: Aircraft industry, avcraR equipment, electric batteries, storage batteries, nickel cadmium batteries
8、, specifications, dimensions English version Aerospace series - Nickeladmium batteries of format E type Srie arospatiale - Batteries daccumulateurs Luft- Und Raumfahrt - au nickelcadmium du type de format E Nickel-Cadmium-l3amrien - Bauart der GrBenausfuhning E This European Standard was approved by
9、 CEN on 19950629. CEN members are bound to comply with the CEN/CENELEC internai Regulations which stipuiate the conditions for giving this European standard the statm of a national standard without any aiteration. Up-to-date lists and bibliographical references concerning such national standards may
10、 be obtained on application to the Centrai Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, Geman). A version in any other language made by tsdnslation under the responsibility of a CEN member into its own language and notified to the Centr
11、ai Secretariat has the same status as the officiai versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Itaiy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European C
12、ommittee for Standardization Comit Europen de Normalisation Europisches Komitee fur Normung Central Secretariat: rue de Stassart 36, B-1060 Brussels O 1996 Copyright reserved to CEN members Ref. No. EN 2991 : 1996 E Foreword This European Standard has been prepared by the European Association of Aer
13、ospace Manufacturers Aner inquiries and votes carried out in accordance with the niles of this Association, this Standard has received the approval of the National Associations and the official Services of the member countries of AECMA, prior to its presentation to CEN. This European Standard shall
14、be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by Januay 1997 and conflicting national stan- shall be withdrawn at the latest by Janwuy 1997. According to the CEN/CENELEC Internai Regulations, the national standards organizatio
15、ns of the foilowing countries are bound to implement this European standard: Austria, Beigium, Denmark, Finland, France, Gennany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. (AECMA). O BSI 1996 Page 3 EN 2991 : 1996 1
16、 scope This standard specifies the characteristics of nickel-cadmium batteries of format E type. NOTE : Format E type makes it possible to differentiate between the title of the present standard and those of the other product standards for nickel-cadmium batteries. 2 Normative references this Europe
17、an Standard incorporates by dated or undated reference provisions from other publications. These normative references are cited at the appropriate places in the text and the publications are listed hereafter. For dared references, subsequent amendments to or revisions of any of these publications ap
18、ply to this European Standard only when incorporated in it by amendment or revision. For undated refetences the latest edition of the publication referred to applies. EN 2570 Aerospace series - Nickel-cadmium batteries - Technical specification 3 Characteristics 3.1 Dimensions See figure 1. Dimensio
19、ns and tolerances are in millimetres. t- - Plug : see EN 2570 figures 2 and 3. 400 f 2 Fastening rod distance A CS : 1) Figure 1 Page 4 EN 2991 : 1996 I i 3.2 Physical characteristics See table 1. Characteristics Test conditions Table 1 Requirements . Batteries Characteristics Mass (with accessories
20、) Accessories 1 Marking Acceleration .Rated capacity Cl Number of cells Electrolyte spillage Seal of lid 1) Minimum air flow rate of ventilation Resistance to salt spray 34 Ah 34 Ah - According to code 1) According to code 1) Requirements 40 kg max. see 5. See EN 2570 (for crash ,no ignition). See E
21、N 2570. See EN 2570. 0,027 m3/min - Charge at - 18 OC See EN 2570. See EN 2570. AS % of Cl Ah 30 min 4 to 6 lh 8to 12 3h 15 to 20 ) Verify if required by the designation. Temperature at the 10th s Z from the 11 th to the 30th s 3.3 Electrical characteristics See EN 2570. 5 Ci A I lOC1 A 21 See table
22、 2. Table 2 Endurance Short-circuit U at the 15th s 14 V 14 V See EN 2570. 5 Ci A 10 Cl A See EN 2570. Imin. : 1 200A U min. : 2.5 V I l .Normal l High power Rated voltage I 1 to 4 I 5 to 7 1,2 V per cell I Available I SeeEN 2570. capacities See EN 2570. Charge recovered I I in 30 min See EN 2570. 2
23、3 OC 50 OC .% of recharged capability 70 I 72 70 72 Prolonged charge at high .temperature Starting capability See EN 2570. See EN 2570. 1) See table 3. 2) Value fixed by the manufacturer BSI BS*EN*2991 96 = 1624bb9 0569148 T39 Rated capacity C1 in Ah Page 6 EN 2991 : 1996 1 2 3 4 Designation EXAMPLE
24、 : No accessories With handles With temoerature sensor Description block Identity block BATTERY I EN2991 -3421 2 7- Till Number of this standard NOTE : If necessary, the code I9005 shall be placed between the description block and the identity block. Table 3 1 Code 1-1 Number Power Electrolyte I I I
25、 I Ill 20 I I Normal I Wl Normal pl Normal Normal High Normal 20 Reserve Table 4 Sealed lid Code 1 + forced ventilation Code 1 + aerobatic flights Apertures in case and lid Table 5 I Code I Accessories I 4 I With temperature sensor and handles I Page 6 EN 2991 : 1996 5 Marking In addition to the ide
26、ntity block (see 41, each battery shall bear the following information : - provisioning number (for military aircraft only); - name of manufacturer; - manufacturers reference; - country and loc.ation of manufacture; - modification index where applicable; - serial number; - date of manufacture (month
27、, year or code); - safety instructions; - polarity (see EN 2570); - nominal voltage; - rated capacity; - number of cells. Unless otherwise indicated, the position of these markings is left to the manufacturers discretion. 6 Log book It shall contain the information of 5, information required by EN 2
28、570 and that concerning any special particulars. 7 Technical specification EN 2570 BS EN 2991 : 1996 List of references See nationai foreword. O BSI 1996 BSI BS*EN*E!991 96 1624669 056915L 523 BS EN 2991 : 1996 BSI 389 Chiswick High Road London w4 4AL BSI - British Standards Institution BSI is the i
29、ndependent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Contract requirements A British Standard does not purport to include all the necessary provisions of a contract Us
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37、rwise - without prior written permission hm BSI. This does not preclude the free use, in the course of implementing the siandard, of necessary details such as symbols, and size, type or grade designations. If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained If permission is granted, the terms may include royalty payments or a licensing agreement. Details and advice can be obtained from the Copyright Manager, BSI, 389 Chiswick High Road, London W4 4AL ISBN O 580 26329 O ACW6
