1、BSI Standards Publication BS ISO 6742-4:2015 Cycles Lighting and retro- reflective devices Part 4: Lighting systems powered by the cycles movementBS ISO 6742-4:2015 BRITISH STANDARD National foreword This British Standard is the UK implementation of ISO 6742-4:2015. The UK participation in its prepa
2、ration was entrusted to Technical Committee GME/25, Cycles. 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. T
3、he British Standards Institution 2015. Published by BSI Standards Limited 2015 ISBN 978 0 580 78228 2 ICS 43.150 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
4、 30 June 2015. Amendments issued since publication Date Text affectedBS ISO 6742-4:2015 ISO 2015 Cycles Lighting and retro- reflective devices Part 4: Lighting systems powered by the cycles movement Cycles Dispositifs dclairage et dispositifs rtrorflchissants Partie 4: Systmes dclairage aliments par
5、 dynamo INTERNATIONAL STANDARD ISO 6742-4 First edition 2015-05-15 Reference number ISO 6742-4:2015(E)BS ISO 6742-4:2015ISO 6742-4:2015(E)ii ISO 2015 All rights reserved COPYRIGHT PROTECTED DOCUMENT ISO 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this p
6、ublication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, 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 c
7、ountry of the requester. ISO copyright office Ch. de Blandonnet 8 CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 copyrightiso.org www.iso.orgBS ISO 6742-4:2015ISO 6742-4:2015(E)Foreword iv 1 Scope . 1 2 Normative references 1 3 Terms and definitions . 1 4 Lamp
8、s and interchangeable generators 2 4.1 General . 2 4.2 Requirements . 2 4.2.1 Dynamo-operated front lights 2 4.2.2 Dynamo-operated rear lights 2 4.2.3 Dynamos . 3 4.3 Test Methods . 4 4.3.1 Dynamo-operated front lights 4 4.3.2 Dynamo-operated rear lights 4 4.3.3 Dynamos . 4 5 Lamps and dedicated gen
9、erators 5 5.1 General . 5 5.2 Requirements . 5 5.2.1 Principle of lighting system 5 5.2.2 Speed ranges . 5 5.3 Safety requirements . 5 5.3.1 Environmental behaviour 5 5.3.2 Test method 6 6 Common requirements and test methods for lighting systems and the loading .6 6.1 Requirements . 6 6.1.1 Corrosi
10、on resistance . 6 6.1.2 Water resistance . 6 6.1.3 Loading requirements . 6 6.2 Test methods . 6 6.2.1 Corrosion testing . 6 6.2.2 Water resistance . 6 6.2.3 Test of electronic load 6 7 Instructions 7 8 Marking 7 8.1 Requirement . 7 8.2 Durability test 7 8.2.1 Requirement 7 8.2.2 Test method 7 Annex
11、 A (informative) Electronic load for power-measurement of 6 V/1,5 W LED dynamos 8 Annex B (informative) Efficiency calculation .10 Annex C (informative) Verification of the electronic load .11 Bibliography .13 ISO 2015 All rights reserved iii Contents PageBS ISO 6742-4:2015ISO 6742-4:2015(E) Forewor
12、d 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 which a technica
13、l 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 matters of ele
14、ctrotechnical standardization. The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was
15、 drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). 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 pate
16、nt rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given for the convenience of users and does not
17、constitute an endorsement. For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT), see the following URL: Foreword Supplementary information.
18、The committee responsible for this document is ISO/TC 149, Cycles, SC 1, Cycles and major sub-assemblies. I S O 6742 consists of the following parts, under the general title C yc le s Light ing an d r e t r o -r e f le c t i ve d e v ic e s: Part 1: Lighting and light signalling devices Part 2: Retr
19、o reflective devices Part 3: Installation and use of lighting and retro-reflective devices Part 4: Lighting systems powered by the cycles movement Part 5: Lighting systems not powered by the cycles movementiv ISO 2015 All rights reservedBS ISO 6742-4:2015INTERNATIONAL ST ANDARD ISO 6742-4:2015(E) Cy
20、cles Lighting and retro-reflective devices Part 4: Lighting systems powered by the cycles movement 1 Scope This part of ISO 6742 is applicable to lighting systems used on cycles intended to be used on public roads and, especially, bicycles complying with ISO 4210 and ISO 8098. This part of ISO 6742
21、specifies requirements and test methods for the performance of lighting systems powered by the cycles movement. It applies to light devices complying with ISO 6742-1. Lighting systems include lighting devices and power supplied by cycles movement such as generator. 2 Normative references The followi
22、ng 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 (including any amendments) applies. ISO 6742-1:2015, C
23、 ycle s Light ing and re t r o-ref le c t i ve de v ice s Par t 1: Light ing and light s ignalling de v ice s ISO 6742-3:2015, Cycles Lighting and retro-reflective devices Part 3: Installation and use of lighting and retro-reflective devices ISO 9227, Corrosion tests in artificial atmospheres Salt s
24、pray tests IEC 60529, Degrees of protection provided by enclosures (IP Code) 3 Terms and definitions For the purposes of this document, the terms and definitions given in ISO 6742-1 and the following apply. 3.1 frictional drive generator generator for which the rotor or stator is linked to a pulley
25、which press against the driving wheel over a swivel bearing through force 3.2 positive drive generator generators which are not concerned by the definition of frictional drive generator (3.1) 3.3 integrated lamp and power source system including power source and at least one type of light designed t
26、o be used together, closed system Note 1 to entry: Power generator characteristics are depending of vehicle movement. Note 2 to entry: Light output performances are depending of the speed of the vehicle, or the time during which bicycle has been stopped. ISO 2015 All rights reserved 1BS ISO 6742-4:2
27、015ISO 6742-4:2015(E) 4 Lamps and interchangeable generators 4.1 General The complete system shall be designed as open system which requires compatibility between lamps and generators. 4.2 Requirements 4.2.1 Dynamo-operated front lights Dynamo-operated front lights (lamps emitting light to the front
28、) shall correspond with the requirements of ISO 6742-1:2015, 4.2 (Front position lamp), 4.5 (Low beam) and 4.6 (High beam). Voltage limiting resources shall only become effective above the test voltage. Here, the value of the DC voltage, U, corresponds with the root mean square of the AC voltage, U
29、eff . Furthermore: the nominal voltage of the light source shall be equal to the system voltage or the light source shall be powered via an appropriate electronic ballast; the lighting effect shall be deployed at 3 U effat the latest; the lighting evaluation shall be performed at test voltage; the p
30、ower consumption shall be 110 % of the nominal value; the power consumption shall be 2,4 W or less at the test voltage; electronic ballasts in these units shall have the corresponding electrical rating. Head lamps with integrated capacitor to power the light while halting shall be built so that the
31、load of the entire equipment on the supply system is not substantially higher than that intended for this equipment according to ISO 6742-1:2015, 4.8. The entire equipment shall fulfil the necessary requirements at test voltage, where, based on a discharged capacitor, a charging time of 120 s using
32、test voltage is permissible and the reduction of the dynamo voltage through the charging of the capacitor shall correspond with the following conditions: a) not exceeding 60 % after 15 s; b) not exceeding 37 % after 30 s; c) not exceeding 15 % after 60 s; d) not exceeding 5 % after 90 s; e) not exce
33、eding 1,5 % after 120 s. Any stand light shall emit visible light for at least 240 s. 4.2.2 Dynamo-operated rear lights Dynamo-operated rear lights (lamps emitting light to the rear) shall correspond with the requirements of ISO 6742-1:2015, 4.3 (Rear lamp), 4.4 (Stop lamp) and 4.8 (Stand light). An
34、d the power consumption shall be 0,6 W or less at the test voltage. Rear lamps with integrated stand lights shall be built so that the load of the entire equipment on the supply system is not substantially higher than that intended for this equipment. The entire equipment shall fulfil the necessary
35、requirements at test voltage, where, based on a discharged capacitor, a charging 2 ISO 2015 All rights reservedBS ISO 6742-4:2015ISO 6742-4:2015(E) time of 120 s using test voltage is permissible and the reduction of the dynamo voltage through the charging of the capacitor shall correspond with the
36、following conditions: a) not exceeding 60 % after 15 s; b) not exceeding 37 % after 30 s; c) not exceeding 15 % after 60 s; d) not exceeding 5 % after 90 s; e) not exceeding 1,5 % after 120 s. Any stand light shall emit visible light for at least 240 s. 4.2.3 Dynamos 4.2.3.1 General characteristics
37、of generators For measurements according to 4.2.3, voltage and power of dynamos shall meet the values of Table 1. For generators, for which the outputs characteristics are depending on diameter of the wheel, the minimum values given in Table 1 of the voltage and the efficiency refer to the largest o
38、utside diameter of the wheel as provided by the manufacturer. The measurement of the maximum values in Table 1 of the voltage refers to the smallest outside diameter of the wheel as stated by the manufacturer. Table 1 Characteristics of generators Type of generator System Speed km/h Efficiency % 15
39、5 10 15 30 Frictional drive 6 V/3 W and 6 V/2,4 W and 6 V/1,5 W with fixed resistor 5,7 V 7,5 V 3 V 7,5 V 5,7 V 7,5 V 30 6 V/1,5 W with electric load 1,35 W 4,7 W 0,2 W 4,7 W 1,35 W 4,7 W 30 Positive drive 6 V/3 W and 6 V/2,4 W and 6 V/1,5 W with fixed resistor 5,7 V 7,5 V 3 V 7,5 V 5,7 V 7,5 V 30 6
40、 V/1,5 W with electric load 1,35 W 4,7 W 0,2 W 4,7 W 1,35 W 4,7 W 30 4.2.3.2 Generator Frictional dynamo For dynamos which press against the driving wheel over a swivel bearing through spring force, the spring force, measured perpendicularly to the rotational axis of the dynamo, shall be 10 N inside
41、 of the total swivel area to loose contact with tyre. This value shall also be used for the measurement of the efficiency. Should an AC voltage of 50 V effor a DC voltage of 75 V be exceeded for this unloaded dynamo within the specified speed range, additional measures shall be provided in order to
42、meet this voltage limit. 4.2.3.3 Generator Positive drive For dynamos without gears and for the largest outside diameter of the wheel permissible for these dynamos and at a speed of 5 km/h, the frequency of the AC voltage shall be at least 6 Hz. ISO 2015 All rights reserved 3BS ISO 6742-4:2015ISO 67
43、42-4:2015(E) Should an AC voltage of 50 V effor a DC voltage of 75 V be exceeded for this unloaded dynamo within the specified speed range, additional measures shall be provided in order to meet this voltage limit. 4.3 Test Methods 4.3.1 Dynamo-operated front lights Dynamo-operated front lights (lam
44、ps emitting light to the front) have to be tested corresponding with the test methods of ISO 6742-1:2015, 4.2 (Front position lamp), 4.5 (Low beam) and 4.6 (High beam). The test voltage shall be the rated voltage of substantially sinusoidal AC (frequency 50 Hz or 60 Hz) or DC. Measure the voltage at
45、 the terminal of the dynamo. 4.3.2 Dynamo-operated rear lights Dynamo-operated rear lights (lamps emitting light to the rear) have to be tested corresponding with the test methods of ISO 6742-1:2015, 4.3 (Rear lamp), 4.4 (Stop lamp) and 4.8 (Stand light). The test voltage shall be the rated voltage
46、of substantially sinusoidal AC (frequency 50 Hz or 60 Hz) or DC. Measure the voltage at the terminal of the dynamo. 4.3.3 Dynamos 4.3.3.1 General characteristics of generators Measure the voltage and power at the terminal of the dynamo. The efficiency can be measured according to Annex B and each pa
47、rameter shall be defined by a manufacture of generators. 4.3.3.2 Frictional dynamos 6 V/3 W dynamos at a load of 12 , 6 V/2,4 W dynamos at a load of 15 and 6 V/1,5 W LED dynamos at an electronic load according Annex A shall then be applied or at a load of 24 . Before the measurement, the dynamo thus
48、 loaded shall be operated at an ambient temperature of (23 5) C without forced cooling for 20 min at a number of revolutions corresponding to a speed of 30 km/h After cooling of the dynamo to ambient temperature, the voltage characteristics as well as the efficiency shall be determined. Here, a driv
49、ing wheel with a treadless surface shall be used. The measurements shall be carried out with the following procedure: determine output voltage and efficiency after 5 min of continuous operation at a speed of 15 km/h; determine output voltage after reduction of speed to 5 km/h; determine output voltage after raising speed up to, but not exceeding 30 km/h. 4.3.3.3 Positive drive dynamos 6 V/3 W dynamos at a load of 12 , 6 V/2,4 W dynamos at a
