1、BSI Standards PublicationBS ISO 7176-25:2013WheelchairsPart 25: Batteries and chargers for poweredwheelchairsBS ISO 7176-25:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 7176-25:2013.The UK participation in its preparation was entrusted to TechnicalCommi
2、ttee CH/173/1, Wheelchairs.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014
3、. Published by BSI StandardsLimited 2014ISBN 978 0 580 71009 4ICS 11.180.10Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 28 February 2014.Amendments issued since
4、 publicationDate Text affectedBS ISO 7176-25:2013 ISO 2013Wheelchairs Part 25: Batteries and chargers for powered wheelchairsFauteuils roulants Partie 25: Batteries et chargeurs pour fauteuils roulants motorissINTERNATIONAL STANDARDISO7176-25First edition2013-07-15Reference numberISO 7176-25:2013(E)
5、BS ISO 7176-25:2013ISO 7176-25:2013(E)ii ISO 2013 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2013All 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 mechanical, including photocopying
6、, 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 officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail c
7、opyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 7176-25:2013ISO 7176-25:2013(E) ISO 2013 All rights reserved iiiContents PageForeword ivIntroduction vi1 Scope . 12 Normative references 13 Terms and definitions . 24 Apparatus . 35 Battery chargers . 55.1 Electrical safety 55.2 Performanc
8、e-related safety 65.3 Charging capability 95.4 Electromagnetic compatibility . 115.5 Indicators 116 Batteries .126.1 Requirements 126.2 Test method 127 Test report 137.1 Test reports for battery chargers . 137.2 Test reports for batteries 138 User manual .148.1 User manual for battery chargers 148.2
9、 User manual for batteries . 159 Disclosure .15Annex A (informative) Recommendations for cyclic endurance 16Bibliography .17BS ISO 7176-25:2013ISO 7176-25:2013(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies
10、). 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 represented on that committee. International organizations, governmental and no
11、n-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 drafted in accordance with the rules given in the ISO/IEC Directives, Part
12、 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 Standard requires approval by at least 75 % of the member bodies casting a
13、 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 prepared by Technical Committee ISO/TC 173, Assistive products for persons with
14、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 wheelchairs Part 3: Determination of effectiveness of brakes Part 4: Energy consu
15、mption 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 of electric wheelchairs Part 7: Measurement of seating and wheel dimension
16、s 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: Test dummies Part 13: Determination of coefficient of friction of test sur
17、faces 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 ignition of upholstered parts Part 19: Wheeled mobility devices for use as sea
18、ts 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 ISO 7176-25:2013ISO 7176-25:2013(E) Part 23: Requirements and test methods
19、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 and test methods for stair-climbing devices ISO 2013 All rights reserved vBS
20、 ISO 7176-25:2013ISO 7176-25:2013(E)IntroductionSince 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 is important to ensure that wheelchair batteries and chargers are suitable f
21、or 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 practicable. Consequently, it is essential that performance requirements and
22、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 these types, so it is appropriate to apply different requirements to them.vi ISO
23、 2013 All rights reservedBS ISO 7176-25:2013INTERNATIONAL STANDARD ISO 7176-25:2013(E)Wheelchairs Part 25: Batteries and chargers for powered wheelchairsWARNING This part of ISO 7176 calls for the use of procedures that might be injurious to health if adequate precautions are not taken. It refers on
24、ly 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 exhibit dangerous behaviour, it is recommended that the likely outcome is assesse
25、d and appropriate arrangements made to minimise risk.1 ScopeThis International Standard specifies requirements and test methods for batteries and battery chargers intended for use with electrically powered wheelchairs. It is applicable to lead acid batteries and chargers intended for use with them.
26、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 lithium based batteries) and suitable chargers are under consideration.NOTE 2 Requ
27、irements regarding safety are applicable to all battery chargers intended for use with electrically powered wheelchairs.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated r
28、eferences, 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 strengthsISO 7176-21, Wheelchairs Part 21: Requirements and test methods for electromagnetic compatibility of elect
29、rically powered wheelchairs and scooters, and battery chargersIEC 60254-1, Lead-acid traction batteries Part 1: General requirements and methods of testsIEC 60254-2, Lead-acid traction batteries Part 2: Dimensions of cells and terminals and marking of polarity on cellsIEC 60335-2-29, Household and s
30、imilar electrical appliances Safety Part 2-29: Particular requirements for battery chargersIEC 60529, Degrees of protection provided by enclosures (IP Code)IEC 61076-2-103, Connectors for electronic equipment Part 2-103: Circular connectors Detail specification for a range of multipole connectors (t
31、ype XLR)SAE J1495, Test Procedure for Battery Flame Retardant Venting SystemsIATASpecial Provision A67 ISO 2013 All rights reserved 1BS ISO 7176-25:2013ISO 7176-25:2013(E)3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 7176-26 and the following apply.
32、3.1batteryone or more cells fitted with devices necessary for use, for example case, terminals, marking and protective devicesSOURCE: IEV 48201043.2lead acid batterylead dioxide lead batterysecondary battery with an aqueous electrolyte based on dilute sulphuric acid, a positive electrode of lead dio
33、xide and a negative electrode of leadNote 1 to entry: Lead dioxide lead batteries are often called accumulators (deprecated).SOURCE: IEV 48205013.3nominal voltagesuitable approximate value of the voltage used to designate or identify a cell, a battery or an electrochemical systemSOURCE: IEV 4820331N
34、ote 1 to entry: For lead acid batteries the nominal voltage is usually two volts multiplied by the number of cells.3.4rated d.c. output currentoutput current assigned to the battery charger by its manufacturer3.5rated d.c. output voltageoutput voltage assigned to the battery charger by its manufactu
35、rer3.6rated input voltagesupply mains voltage assigned to the battery charger by its manufacturer3.7safety hazardpotential source of physical injury or damage to the health of the user, other persons or animals, or damage to the surroundings, arising directly from the battery charger or batteryNote
36、1 to entry: Adapted from IEC 606011.3.8C5rated capacity of the battery for a discharge time of 5 h, expressed in ampere hoursNote 1 to entry: C5is equivalent to CNas defined in IEC 602541.Note 2 to entry: IEC 602541 states that the nominal capacity, CN, is a reference value declared by the manufactu
37、rer, which is valid for a cell/battery temperature of 30 C, a discharge time of 5 h, and a cut-off voltage Ufof 1,70 V per cell.Note 3 to entry: The nominal capacity, CN, can differ from the actual capacity of the battery.2 ISO 2013 All rights reservedBS ISO 7176-25:2013ISO 7176-25:2013(E)3.9I5the e
38、lectric current (C5/ 5), expressed in amperesNote 1 to entry: The numerical value of C5divided by a numerical value of time in hours yields a numerical value of current.4 Apparatus4.1 Mean current meter, capable of measuring the arithmetic mean current supplied by a battery charger to an accuracy of
39、 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 0,2 % 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 importan
40、t 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 of 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 exceed
41、s 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, 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 pa
42、rt 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 for 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-vol
43、tage mode or constant-current mode, with terminals for connection to the output terminals of the battery charger.In the constant-voltage mode (switch in CV position), the circuit will keep the voltage between the load terminals substantially constant while sinking the current supplied by the battery
44、 charger.In the constant-voltage mode the voltage at the load terminals will be given byVRRRREFU_+122In the constant-current mode (switch in CC position), the circuit will sink a substantially constant current with the load terminal voltage being the output voltage of the battery charger.In constant
45、-current mode the load current will be given byVRREFISHUNT_ ISO 2013 All rights reserved 3BS ISO 7176-25:2013ISO 7176-25:2013(E)NOTE 1 RSHUNTmay be utilized as 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 t
46、o 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 3 It is important to confirm correct operation of the battery charger with the electronic load. For example, some battery chargers might need a
47、 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 the voltage range at the load terminals and the maximum load current are matched to the battery charger under test.Figure 1 Electronic load outli
48、ne schematic4.5 Means to alter the a.c. supply voltage to a battery charger, normally consisting of a tapped or continuously adjustable variable transformer. 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
49、 the charger when not loaded.4 ISO 2013 All rights reservedBS ISO 7176-25:2013ISO 7176-25:2013(E)5 Battery chargers5.1 Electrical safety5.1.1 GeneralIt is important that battery chargers intended for use with electrically powered wheelchairs do not constitute a safety hazard when utilized in the specified environment and during foreseeable misuse.5.1.2 Requirements5.1.2.1 On-board and carry-on battery chargers shall meet the following requirements after being exposed to vibration as speci
