1、BSI Standards Publication BS ISO 7176-25:2013 Wheelchairs Part 25: Batteries and chargers for powered wheelchairsBS ISO 7176-25:2013 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 7176-25:2013. The UK participation in its preparation was entrusted to Technic
2、al Committee CH/173/1, Wheelchairs. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Ins
3、titution 2014. Published by BSI Standards Limited 2014 ISBN 978 0 580 71009 4 ICS 11.180.10 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 28 February 2014. Am
4、endments issued since publication Date Text affectedBS ISO 7176-25:2013 ISO 2013 Wheelchairs Part 25: Batteries and chargers for powered wheelchairs Fauteuils roulants Partie 25: Batteries et chargeurs pour fauteuils roulants motoriss INTERNATIONAL STANDARD ISO 7176-25 First edition 2013-07-15 Refer
5、ence number ISO 7176-25:2013(E)BS ISO 7176-25:2013ISO 7176-25:2013(E)ii ISO 2013 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2013 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or m
6、echanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 74
7、9 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in SwitzerlandBS ISO 7176-25:2013ISO 7176-25:2013(E) ISO 2013 All rights reserved iii Contents Page Foreword iv Introduction vi 1 Scope . 1 2 Normative references 1 3 T erms and definitions . 2 4 Apparatus . 3 5 Battery
8、chargers . 5 5.1 Electrical safety 5 5.2 Performance-related safety 6 5.3 Charging capability . . 9 5.4 Electromagnetic compatibility .11 5.5 Indicators 11 6 Batteries .12 6.1 Requirements 12 6.2 Test method 12 7 Test report 13 7.1 Test reports for battery chargers .13 7.2 Test reports for batteries
9、 13 8 User manual .14 8.1 User manual for battery chargers 14 8.2 User manual for batteries .15 9 Disclosure .15 Annex A (informative) Recommendations for cyclic endurance 16 Bibliography .17BS ISO 7176-25:2013ISO 7176-25:2013(E) Foreword ISO (the International Organization for Standardization) is a
10、 worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represente
11、d on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are draf
12、ted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Sta
13、ndard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 7176-25 was prepare
14、d by Technical Committee ISO/TC 173, Assistive products for persons with disability, Subcommittee SC 1, Wheelchairs. ISO 7176 consists of the following parts, under the general title Wheelchairs: Part 1: Determination of static stability Part 2: Determination of dynamic stability of electric wheelch
15、airs Part 3: Determination of effectiveness of brakes Part 4: Energy consumption of electric wheelchairs and scooters for determination of theoretical distance range Part 5: Determination of dimensions, mass and manoeuvring space Part 6: Determination of maximum speed, acceleration and deceleration
16、of electric wheelchairs Part 7: Measurement of seating and wheel dimensions Part 8: Requirements and test methods for static, impact and fatigue strengths Part 9: Climatic tests for electric wheelchairs Part 10: Determination of obstacle-climbing ability of electrically powered wheelchairs Part 11:
17、Test dummies Part 13: Determination of coefficient of friction of test surfaces Part 14: Power and control systems for electrically powered wheelchairs and scooters Requirements and test methods Part 15: Requirements for information disclosure, documentation and labelling Part 16: Resistance to igni
18、tion of upholstered parts Part 19: Wheeled mobility devices for use as seats in motor vehicles Part 21: Requirements and test methods for electromagnetic compatibility of electrically powered wheelchairs and scooters, and battery chargers Part 22: Set-up proceduresiv ISO 2013 All rights reservedBS I
19、SO 7176-25:2013ISO 7176-25:2013(E) Part 23: Requirements and test methods for attendant-operated stair-climbing devices Part 24: Requirements and test methods for user-operated stair-climbing devices Part 25: Batteries and chargers for powered wheelchairs Part 26: Vocabulary Part 28: Requirements an
20、d test methods for stair-climbing devices ISO 2013 All rights reserved vBS ISO 7176-25:2013ISO 7176-25:2013(E) Introduction Since the reliability and performance of an electrically powered wheelchair depend on the operation, performance and reliability of the battery set and the battery charger, it
21、is important to ensure that wheelchair batteries and chargers are suitable for the purpose and that the wheelchair, batteries and charger are compatible. It is also important to ensure that risks arising from the use of wheelchair batteries and their chargers are eliminated or reduced as far as is p
22、racticable. Consequently, it is essential that performance requirements and safety requirements for wheelchair batteries and battery chargers are available. Battery chargers are divided into three types: off-board, carry-on and on-board. Operating, transport and storage situations can differ for the
23、se types, so it is appropriate to apply different requirements to them.vi ISO 2013 All rights reservedBS ISO 7176-25:2013INTERNATIONAL ST ANDARD ISO 7176-25:2013(E) Wheelchairs Part 25: Batteries and chargers for powered wheelchairs WARNING This part of ISO 7176 calls for the use of procedures that
24、might be injurious to health if adequate precautions are not taken. It refers only to technical suitability and does not absolve those carrying out or commissioning the tests from legal obligations relating to health and safety. Prior to carrying out tests that could cause batteries or chargers to e
25、xhibit dangerous behaviour, it is recommended that the likely outcome is assessed and appropriate arrangements made to minimise risk. 1 Scope This International Standard specifies requirements and test methods for batteries and battery chargers intended for use with electrically powered wheelchairs.
26、 It is applicable to lead acid batteries and chargers intended for use with them. Requirements for chargers are applicable to those with a rated input voltage not greater than 250 V a.c. and a nominal output voltage not greater than 36 V. NOTE 1 Requirements for other battery chemistries (nickel and
27、 lithium based batteries) and suitable chargers are under consideration. NOTE 2 Requirements regarding safety are applicable to all battery chargers intended for use with electrically powered wheelchairs. 2 Normative references The following referenced documents are indispensable for the application
28、 of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 7176-8, Wheelchairs Part 8: Requirements and test methods for static, impact and fatigue strengths ISO 7176-21, Wheel
29、chairs Part 21: Requirements and test methods for electromagnetic compatibility of electrically powered wheelchairs and scooters, and battery chargers IEC 60254-1, Lead-acid traction batteries Part 1: General requirements and methods of tests IEC 60254-2, Lead-acid traction batteries Part 2: Dimensi
30、ons of cells and terminals and marking of polarity on cells IEC 60335-2-29, Household and similar electrical appliances Safety Part 2-29: Particular requirements for battery chargers IEC 60529, Degrees of protection provided by enclosures (IP Code) IEC 61076-2-103, Connectors for electronic equipmen
31、t Part 2-103: Circular connectors Detail specification for a range of multipole connectors (type XLR) SAE J1495, Test Procedure for Battery Flame Retardant Venting Systems IATASpecial Provision A67 ISO 2013 All rights reserved 1BS ISO 7176-25:2013ISO 7176-25:2013(E) 3 T erms a nd definiti ons For th
32、e purposes of this document, the terms and definitions given in ISO 7176-26 and the following apply. 3.1 battery one or more cells fitted with devices necessary for use, for example case, terminals, marking and protective devices SOURCE: IEV 4820104 3.2 lead acid battery lead dioxide lead battery se
33、condary battery with an aqueous electrolyte based on dilute sulphuric acid, a positive electrode of lead dioxide and a negative electrode of lead Note 1 to entry: Lead dioxide lead batteries are often called accumulators (deprecated). SOURCE: IEV 4820501 3.3 nominal voltage suitable approximate valu
34、e of the voltage used to designate or identify a cell, a battery or an electrochemical system SOURCE: IEV 4820331 Note 1 to entry: For lead acid batteries the nominal voltage is usually two volts multiplied by the number of cells. 3.4 rated d.c. output current output current assigned to the battery
35、charger by its manufacturer 3.5 rated d.c. output voltage output voltage assigned to the battery charger by its manufacturer 3.6 rated input voltage supply mains voltage assigned to the battery charger by its manufacturer 3.7 safety hazard potential source of physical injury or damage to the health
36、of the user, other persons or animals, or damage to the surroundings, arising directly from the battery charger or battery Note 1 to entry: Adapted from IEC 606011. 3.8 C 5 rated capacity of the battery for a discharge time of 5 h, expressed in ampere hours Note 1 to entry: C 5is equivalent to C Nas
37、 defined in IEC 602541. Note 2 to entry: IEC 602541 states that the nominal capacity, C N , is a reference value declared by the manufacturer, which is valid for a cell/battery temperature of 30 C, a discharge time of 5 h, and a cut-off voltage U fof 1,70 V per cell. Note 3 to entry: The nominal cap
38、acity, C N , can differ from the actual capacity of the battery.2 ISO 2013 All rights reservedBS ISO 7176-25:2013ISO 7176-25:2013(E) 3.9 I 5 the electric current (C 5/ 5), expressed in amperes Note 1 to entry: The numerical value of C 5divided by a numerical value of time in hours yields a numerical
39、 value of current. 4 Apparatus 4.1 Mean current meter, capable of measuring the arithmetic mean current supplied by a battery charger to an accuracy of 2 % of the measurement, which does not introduce a voltage drop (added to the voltage at the output connector of the battery charger) that exceeds 0
40、,2 % of the nominal battery voltage. NOTE 1 The measuring device may be an integral part of an electronic load as specified in 4.4. NOTE 2 It is important to match the averaging time of the meter to any cyclic variations in the charging current. 4.2 Root-mean-square (r.m.s.) current meter, capable o
41、f measuring the r.m.s. current supplied by a battery charger to an accuracy of 2 % of the measurement, which does not introduce a voltage drop that exceeds 0,2 % of the nominal battery voltage. NOTE The measuring device may be an integral part of an electronic load as specified in 4.4. 4.3 Voltmeter
42、, capable of measuring the voltage supplied by a battery charger, to an accuracy of 0,1 % of the measurement. NOTE The measuring device may be an integral part of an electronic load as specified in 4.4. 4.4 Electronic load, for simulating a battery to the extent necessary to provide the test loads f
43、or battery chargers included in the scope of this standard. EXAMPLE Figure 1 shows an outline schematic for an electronic load that can be used in constant-voltage mode or constant-current mode, with terminals for connection to the output terminals of the battery charger. In the constant-voltage mod
44、e (switch in CV position), the circuit will keep the voltage between the load terminals substantially constant while sinking the current supplied by the battery charger. In the constant-voltage mode the voltage at the load terminals will be given by In the constant-current mode (switch in CC positio
45、n), the circuit will sink a substantially constant current with the load terminal voltage being the output voltage of the battery charger. In constant-current mode the load current will be given by _ ISO 2013 All rights reserved 3BS ISO 7176-25:2013ISO 7176-25:2013(E) NOTE 1 R SHUNTmay be utilized a
46、s a part of a current measuring device (4.1 and 4.2). NOTE 2 Some battery chargers might need a voltage to be applied to the output terminals to energize or maintain their output. To initialize such chargers it will be necessary to connect a current-limited voltage source to the load terminals. NOTE
47、 3 It is important to confirm correct operation of the battery charger with the electronic load. For example, some battery chargers might need a capacitive load, in which case an appropriate capacitor should be added to the load terminals and correct operation confirmed. NOTE 4 It is essential that
48、the voltage range at the load terminals and the maximum load current are matched to the battery charger under test. Figure 1 Electronic load outline schematic 4.5 Means to alter the a.c. supply voltage to a battery charger, normally consisting of a tapped or continuously adjustable variable transfor
49、mer. The means should not cause the peak supply voltage of the charger when fully loaded to differ by more than 2 % from the peak supply voltage of the charger when not loaded.4 ISO 2013 All rights reservedBS ISO 7176-25:2013ISO 7176-25:2013(E) 5 Battery chargers 5.1 Electrical safety 5.1.1 General It is important that battery chargers intended for use with electrically powered wheelchairs do not constitute a safety hazard
