1、Electrolyte and water for ventedlead acid accumulatorsPart 2: Requirements for waterBS EN 62877-2:2016BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of EN 62877-2:2016. It isidentical to IEC 62877-2:201
2、6.The UK participation in its preparation was entrusted to TechnicalCommittee PEL/21, Secondary cells and batteries.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract.
3、 Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 87298 3ICS 29.220.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority
4、 of theStandards Policy and Strategy Committee on 31 December 2016.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 62877-2:2016EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 62877-2 May 2016 ICS 29.220.20 English Version Electrolyte and water for vented le
5、ad acid accumulators - Part 2: Requirements for water (IEC 62877-2:2016) Electrolyte et eau pour accumulateurs plomb-acide ouverts - Partie 2: Exigences pour leau (IEC 62877-2:2016) Elektrolyte und Wasser fr geschlossene Blei-Sure-Batterien - Teil 2: Anforderungen an Wasser (IEC 62877-2:2016) This E
6、uropean Standard was approved by CENELEC on 2016-03-02. CENELEC members are bound to comply with the CEN/CENELEC 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 refere
7、nces concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC 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
8、CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugo
9、slav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Stan
10、dardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 62877
11、-2:2016 E BS EN 62877-2:2016EN 62877-2:2016 2 European foreword The text of document 21/875/FDIS, future edition 1 of IEC 62877-2, prepared by IEC/TC 21 “Secondary cells and batteries“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 62877-2:2016. The following dates are
12、fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2016-12-02 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2019-03-02 Attention is drawn to t
13、he possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 62877-2:2016 was approved by CENELEC as a Europ
14、ean Standard without any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated : IEC 62485-3 NOTE Harmonized as EN 62485-3. BS EN 62877-2:2016EN 62877-2:2016 3 Annex ZA (normative) Normative references to international publications wit
15、h their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document
16、 (including any amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.
17、eu. Publication Year Title EN/HD Year IEC 62877-1 - Electrolyte and water for vented lead acid accumulators - Part 1: Requirements for electrolyte EN 62877-1 - BS EN 62877-2:2016 2 IEC 62877-2:2016 IEC 2016 CONTENTS FOREWORD . 3 1 Scope 5 2 Normative references. 5 3 Terms and definitions 5 4 Physica
18、l and chemical requirements of water for lead-acid batteries . 6 5 Storage of purified water 7 Bibliography . 8 Table 1 Physical properties and requirements of purified water . 6 Table 2 Chemical properties and requirements of purified water 6 BS EN 62877-2:2016IEC 62877-2:2016 IEC 2016 3 INTERNATIO
19、NAL ELECTROTECHNICAL COMMISSION _ ELECTROLYTE AND WATER FOR VENTED LEAD ACID ACCUMULATORS Part 2: Requirements for water FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National C
20、ommittees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Av
21、ailable Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental
22、organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on techni
23、cal matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC
24、 National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniform
25、ity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IE
26、C itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure
27、that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any
28、nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the refere
29、nced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. Interna
30、tional Standard IEC 62877-2 has been prepared by IEC technical committee 21: Secondary cells and batteries. The text of this standard is based on the following documents: FDIS Report on voting 21/875/FDIS 21/882/RVD Full information on the voting for the approval of this standard can be found in the
31、 report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. BS EN 62877-2:2016 4 IEC 62877-2:2016 IEC 2016 A list of all parts of the IEC 62877 series can be found, under the general title Electrolyte and water for vented lead
32、acid accumulators on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reco
33、nfirmed, withdrawn, replaced by a revised edition, or amended. BS EN 62877-2:2016IEC 62877-2:2016 IEC 2016 5 ELECTROLYTE AND WATER FOR VENTED LEAD ACID ACCUMULATORS Part 2: Requirements for water 1 Scope This part of IEC 62877 applies to water for use with vented lead-acid cells and batteries, i.e.
34、water for preparation of electrolyte and for topping up cells or batteries. The purity of refilling water has to meet higher requirements compared to filling electrolyte, because the impurities in the operating electrolyte will be gradually increased by regular addition of water. This international
35、standard lays down requirements of the composition, purity and properties of water in the absence of specific recommendations from the manufacturer. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its applicat
36、ion. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 62877-1, Electrolyte and water for vented lead acid accumulators Part 1: Requirements for electrolyte 3 Terms and definitions 3.1 e
37、lectrolyte diluted sulfuric acid (H2SO4) for lead-acid accumulators. The electrolyte is prepared by mixing concentrated sulfuric acid or sulfuric acid with high density of d 1,30 kg/l and purified water to achieve the density values specified by the battery manufacturer or specified in standards rel
38、ated to the type and battery design in question for a defined state of charge Note 1 to entry: Concentrated sulfuric acid is a colorless, high corrosive and etching liquid with a density 1,84 kg/l. 3.2 water purified water (H2O) used for the preparation of electrolyte for batteries and for the repla
39、cement (topping up) of water loss in the operating electrolyte due to decomposition of water by overcharging and evaporation 3.3 reference temperature value specified by the battery manufacturer for the indication of properties, such as the nominal electrolyte density, the maximum electrolyte level
40、and the nominal capacity of the battery. The value of the nominal temperature for the indication of parameters may differ depending on the battery type and application BS EN 62877-2:2016 6 IEC 62877-2:2016 IEC 2016 3.4 impurities In practical use, the electrolyte may include impurities which cause d
41、amage to the battery or reduce its power or its service life. Water added to the electrolyte will increase the level of impurities. The type and maximum allowed content of impurities of purified water are specified in the following tables 3.5 operating electrolyte electrolyte present in the battery
42、following the first filling. The values of density and impurities of the operating electrolyte may deviate from the values of the filling electrolyte due to impurity input from replenishment by water and to elution from e.g. separators, active materials and electrode grids 4 Physical and chemical re
43、quirements of water for lead-acid batteries Water for the preparation of electrolyte or topping-up of batteries shall meet the physical requirements as given in Table 1. The chemical limit values as specified in Table 2 shall not be exceeded. Purified water in compliance with the requirements can be
44、 prepared from tap water by distillation or by means of ion exchangers. Table 1 Physical properties and requirements of purified water Appearance clear, colorless, odorless, free from oil drips pH value 5 to 7 Electric conductivity at 20 C freshly prepared up to being filled into the cell 10 S/cm 30
45、 S/cm Table 2 Chemical properties and requirements of purified water Cons. No. Impurities mg/l max. Limit value comment 1 evaporation residue 10 2 oxidable organic substances 20 calculated as KMnO43 Lead (Pb), Antimony (Sb), Arsenic(As), Tin (Sn), Bismuth(Bi), Copper(Cu), Cadmium(Cd), Zink( Zn), Sel
46、enium (Se), Tellurium(Te), each element individually all together 0,1 0,5 4 Iron(Fe), Cobalt(Co), Nickel(Ni), Chromium (Cr) , Manganese(Mn) each element individually all together 0,1 0,5 5 Halogens 0,5 calculated as chloride 6 Nitrogen in the form of nitrate 2,0 7 Nitrogen in the form of ammonia 40
47、BS EN 62877-2:2016IEC 62877-2:2016 IEC 2016 7 5 Storage of purified water Water shall be stored in appropriate vessels, such as vessels made from glass, ebonite, polyethylene, polypropylene or other plastic materials. Hoses should be made of PVC, rubber or polyethylene. The dissolution of metal ions
48、 out of metallic vessels is liable to occur. Vessels made of metal, shall therefore, not be used. It is recommended that purified water should always be stored in airtight vessels because carbon dioxide (CO2) which is absorbed from the air increases the electric conductivity of the purified water. B
49、S EN 62877-2:2016 8 IEC 62877-2:2016 IEC 2016 Bibliography IEC 62485-2, Safety requirements for secondary batteries and battery installations Part 2: Stationary batteries IEC 62485-3, Safety requirements for secondary batteries and battery installations Part 3: Traction batteries _ BS EN 62877-2:2016This page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and se
