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1、BRITISH STANDARD BS ISO 7176-14:2008 Wheelchairs Part 14: Power and control systems for electrically powered wheelchairs and scooters Requirements and test methods ICS 11.180.10 ? Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/59
2、10770001 Not for Resale, 08/14/2008 22:07:07 MDTNo reproduction or networking permitted without license from IHS -,-,- BS ISO 7176-14:2008 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2008 BSI 2008 ISBN 978 0 580 53794 3 National f
3、oreword This British Standard is the UK implementation of ISO 7176-14:2008. It supersedes BS ISO 7176-14:1997 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee CH/173, Assistive products for persons with disability, to Subcommittee CH/173/1, Wheelchairs
4、. A list of organizations represented on this subcommittee 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. Compliance with a British Standard cannot confer immunit
5、y from legal obligations. Amendments/corrigenda issued since publication DateComments Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 22:07:07 MDTNo reproduction or networking permitted withou
6、t license from IHS -,-,- Reference number ISO 7176-14:2008(E) INTERNATIONAL STANDARD ISO 7176-14 Second edition 2008-02-15 Wheelchairs Part 14: Power and control systems for electrically powered wheelchairs and scooters Requirements and test methods Fauteuils roulants Partie 14: Systmes dalimentatio
7、n et de commande des fauteuils roulants et des scooters lectriques Exigences et mthodes dessai BS ISO 7176-14:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 22:07:07 MDTNo reproduction o
8、r networking permitted without license from IHS -,-,- ii Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 22:07:07 MDTNo reproduction or networking permitted without license from IHS -,-,- iii
9、Contents Page Foreword. v Introduction vii 1 Scope . 1 2 Normative references. 1 3 Terms and definitions. 2 4 Apparatus 5 5 Preparation of test wheelchair 8 5.1 Wheelchair set-up. 8 5.2 Loading the wheelchair 8 5.3 Wheelchair attributes . 8 5.4 Wheelchair documentation 8 5.5 Preparation records 9 6
10、Guidance for tests 9 6.1 Test order 9 6.2 Batteries. 9 6.3 Test conditions . 9 7 Single fault safety. 9 7.1 Single fault conditions . 9 7.2 Controller command signal processing failure. 10 7.3 Controller output device failure 12 7.4 Ability to stop when power is removed 15 8 Design 17 8.1 On/off swi
11、tch. 17 8.2 Current consumption while switched off. 17 8.3 Control signal at switch on 18 8.4 Safe operation as the battery set becomes depleted 18 8.5 Over-discharge protection. 20 8.6 Controller over-voltage protection 21 8.7 Switch-off while driving 22 8.8 Measuring devices 22 8.9 Drive inhibit d
12、uring charging. 23 8.10 Charging connection voltage drop. 23 8.11 Non-powered mobility 24 8.12 Brakes 26 8.13 Battery enclosures 27 8.14 Symbols. 28 8.15 Safety of moving parts. 28 8.16 Use in combination with other devices 28 9 Protection against electric shock, burns, fire and explosion 28 9.1 Ele
13、ctrical insulation 28 9.2 Protection from non-insulated electrical parts 29 9.3 Circuit protection 29 9.4 Stalled condition protection 34 9.5 Surface temperatures. 36 9.6 Disconnection of battery system 37 9.7 Resistance to ignition. 37 BS ISO 7176-14:2008 Copyright British Standards Institution Pro
14、vided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 22:07:07 MDTNo reproduction or networking permitted without license from IHS -,-,- iv 10 Ergonomics37 10.1 User interface 37 10.2 Operating forces .38 10.3 Display position 40 10.4 On/off
15、 indicator40 10.5 Connectors 40 10.6 Audible noise.40 10.7 Acoustic warning device42 11 Durability43 11.1 Control devices .43 11.2 Switches.44 11.3 Connectors 44 12 Electrical connections44 12.1 Interchangeability .44 12.2 Wire routing.45 12.3 Wire colours.45 12.4 Intermediate battery connection pow
16、er drains45 13 Environmental .46 13.1 Substance/liquid ingress (in).46 13.2 Leakage of substances (out)46 13.3 Electromagnetic compatibility.46 14 Misuse and abuse .46 14.1 Reversed polarity at the battery set46 14.2 Integrity of enclosures47 15 Information provided with the wheelchair related to co
17、ntrol systems48 15.1 General.48 15.2 Battery connection and circuit protection diagram 48 15.3 Operation of wheelchair .48 15.4 Safety information provided to operators 49 15.5 Removable parts .49 15.6 Residual risks49 16 Test report49 17 Disclosure50 Annex A (informative) Guidance on wheelchair wir
18、e sizing and protection 51 Bibliography .53 BS ISO 7176-14:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 22:07:07 MDTNo reproduction or networking permitted without license from IHS -,-
19、,- v Foreword ISO (the International Organization for Standardization) is a 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 whic
20、h a technical committee has been established has the right to be represented 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 ma
21、tters of electrotechnical standardization. International Standards are drafted 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 circ
22、ulated to the member bodies for voting. Publication as an International Standard 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 respons
23、ible for identifying any or all such patent rights. ISO 7176-14 was prepared by Technical Committee ISO/TC 173, Assistive products for persons with disability, Subcommittee SC 1, Wheelchairs. This second edition cancels and replaces the first edition (ISO 7176-14:1997), all clauses of which have bee
24、n technically revised. 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 consumption of electric w
25、heelchairs 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 dimensions Part 8: Requiremen
26、ts and test methods for static, impact and fatigue strengths Part 9: Climatic tests for electric wheelchairs Part 10: Determination of obstacle-climbing ability of electric wheelchairs Part 11: Test dummies Part 13: Determination of coefficient of friction of test surfaces Part 14: Power and control
27、 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 Requirements and test methods BS ISO 7176-14:2008 Copyright British Standards In
28、stitution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 22:07:07 MDTNo reproduction or networking permitted without license from IHS -,-,- vi Part 19: Wheeled mobility devices for use in motor vehicles Part 21: Requirements and te
29、st methods for electromagnetic compatibility of electrically powered wheelchairs and motorized scooters Part 22: Set-up procedures 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
30、 26: Vocabulary BS ISO 7176-14:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 22:07:07 MDTNo reproduction or networking permitted without license from IHS -,-,- vii Introduction This par
31、t of ISO 7176 specifies some wheelchair tests that are conducted on an inclined test plane. The intention of these tests is not to evaluate the performance of a wheelchair at the maximum gradient on which it is capable of operating. Instead, the objective is to reveal any changes in the wheelchairs
32、behaviour that might occur under fault conditions, and these changes are more readily discovered when it is operated on a slope. For convenience, the inclined test plane has a fixed gradient, representative of those on which the wheelchair might be used. The range of ambient temperatures under which
33、 testing is carried out is limited to allow comparison between the performance of a wheelchair in normal operation and performance when faults are introduced. BS ISO 7176-14:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/591
34、0770001 Not for Resale, 08/14/2008 22:07:07 MDTNo reproduction or networking permitted without license from IHS -,-,- blank Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 22:07:07 MDTNo repro
35、duction or networking permitted without license from IHS -,-,- 1 Wheelchairs Part 14: Power and control systems for electrically powered wheelchairs and scooters Requirements and test methods WARNING This part of ISO 7176 calls for the use of procedures that may be injurious to health if adequate pr
36、ecautions 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. For tests that could cause the wheelchair to exhibit dangerous behaviour, it is recommended that prior to carrying
37、 out those tests, the likely outcome is assessed to establish appropriate arrangements to minimize any risks. 1 Scope This part of ISO 7176 specifies requirements and associated test methods for the power and control systems of electrically powered wheelchairs and scooters. It sets safety and perfor
38、mance requirements that apply during normal use and some conditions of abuse and failure. It also specifies methods of measurement of the forces necessary to operate controls and sets limits on the forces needed for some operations. This part of ISO 7176 is applicable to electrically powered wheelch
39、airs and scooters with a maximum speed no greater than 15 km/h intended to provide indoor and/or outdoor mobility for one disabled person whose mass lies in the range specified in ISO 7176-11. 2 Normative references The following referenced documents are indispensable for the application of this doc
40、ument. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 3287, Powered industrial trucks Symbols for operator controls and other displays ISO 7176-3, Wheelchairs Part 3: Determination of
41、 effectiveness of brakes ISO 7176-4, Wheelchairs Part 4: Energy consumption of electric wheelchairs and scooters for determination of theoretical distance range ISO 7176-6, Wheelchairs Part 6: Determination of maximum speed, acceleration and deceleration of electric wheelchairs ISO 7176-9, Wheelchai
42、rs Part 9: Climatic tests for electric wheelchairs ISO 7176-11, Wheelchairs Part 11: Test dummies SO 7176-13, Wheelchairs Part 13: Determination of coefficient of friction of test surfaces ISO 7176-15, Wheelchairs Part 15: Requirements for information disclosure, documentation and labelling BS ISO 7
43、176-14:2008 Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Licensee=Boeing Co/5910770001 Not for Resale, 08/14/2008 22:07:07 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 ISO 7176-21, Wheelchairs Part 21: Requirements
44、and test methods for electromagnetic compatibility of electrically powered wheelchairs and motorized scooters ISO 7176-22, Wheelchairs Part 22: Set-up procedures ISO 7176-26, Wheelchairs Part 26: Vocabulary IEC 60529, Degrees of protection provided by enclosures (IP Code) IEC 60601-1, Medical electr
45、ical equipment Part 1: General requirements for basic safety and essential performance IEC 60601-1-2, Medical electrical equipment Part 1-2: General requirements for basic safety and essential performance Collateral standard: Electromagnetic compatibility Requirements and tests IEC 61032, Protection
46、 of persons and equipment by enclosures Probes for verification IEC 62262, Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts (IK code) EN 563, Safety of machinery Temperatures of touchable surfaces Ergonomics data to establish temperature limit
47、 values for hot surfaces EN 12182, Technical aids for disabled persons General requirements and test methods EN 30993-1, Biological evaluation of medical devices Part 1: Guidance on selection of tests UL 94, Tests for flammability of plastic materials for parts in devices and appliances 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 7176-26 and the following apply. 3.1 nominal voltage suitable approximate value of the voltage used to designate or identify a battery A