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1、INTERNATIONAL STANDARD IS0 8052 Second edition 1990-I l-01 Mopeds - Direct current flasher units Cyclomofeurs - Cenfrales clignofanfes en cow-ant confinu Reference number IS0 8052:1990(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Te
2、chnical Standards 1/9972545001 Not for Resale, 04/25/2007 00:20:11 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 8052:1990(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies).
3、The work of preparing International Standards is normally carried out through IS0 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, govern- mental and non
4、-governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies
5、for voting. Publication as an Inter- national Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 8052 was prepared by Technical Committee ISO/TC 22, Road vehicles. This second edition cancels and replaces the first edition (IS0 6052:1984), ref
6、erences in which have been updated and a change made to 5.6. This International Standard forms one of a series of related Standards: IS0 7398, Motorcycles - Direcf current flasher units IS0 7399, Motorcycles - Alternating current flasher units IS0 7400, Mopeds - Alternating currenf flasher units IS0
7、 8052, Mopeds - Direct current flasher units 0 IS0 1990 All rights reserved. No part of this publication may be reproduced or utilized In any form or by any means, electronic or mechanlcal, including photocopying and microfllm, without permlsslon In wrltlng from the publlsher. International Organiza
8、tion for Standardization Case Postale 56 l CH-1211 Get- Each flasher unit shall show, legibly and indelibly, the trade-name or -mark of the manufacturer, the rated voltage, the identification numbers of the ter- minals in accordance with table 1, and the wattages of the lamps for which the flasher i
9、s designed. b) flasher exclusively for hazard warning signalling; c) combined flasher for direction indicator lights and hazard warning. 1) Direction indicator lamps on the same side of the vehicle flash alternately. 1 Copyright International Organization for Standardization Provided by IHS under li
10、cense with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 00:20:11 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 8052:1990(E) 4 Electrical characteristics 4.1 Working voltage The working voltage is the voltage existing between points D a
11、nd E of the test circuit (see figure 1) ac- cording to 4.3, with the flasher short-circuited. 4.2 General test conditions If not otherwise specified, the flasher shall be tested in a room at an ambient temperature of 23 “C f 5 “C, at a working voltage of 6,5 V or 13 V. The flashers shall be tested i
12、n the position (or pos- itlons) indicated by the manufacturer. 4.3 Test circuitry and equipment 4.3.1 Wiring diagram The resistance in the circuitry shall have the values indicated in the wiring diagram in figure 1. The re- sistances of the cables and the ammeter are in- cluded in the resistances in
13、dicated in the wiring diagram, To check these resistances, the flasher and the filament lamps shall be short-circuited by two shunts with a resistance not exceeding 0,005 !A each. 4,3,2 Filament lamps Only filament lamps in accordance with IEC 810 shall be used. This does not apply to tell-tale lamp
14、s when they are not connected in parallel to the main lamps. 4.3.3 Measuring equipment The equipment used to measure the flash-rate, the “on”-time, the starting time, and the voltage drop in the flasher shall not disturb the circuit. 4.3.4 Power supply The stabilized power supply used for the measur
15、e- ments shall comply with the requirements in 4.3.4.1 and 4.3.4.2. 4.3.4.1 For all tests, except that conducted accord- ing to 5.10: 4 b) c) 4 the stabilized power supply shall be capable of supplying the steady load current continuously and the inrush current necessary for the tests: the voltage.
16、between 6 and C (see figure 1) shall not deviate by more than 1 V when the load is raised from 0 to the maximum value (inrush cur- rent included); the voltage variation shall not ex- ceed 370 mV after 100 ps; static regulation: the voltage between B and C shall not deviate by more then 2 % with chan
17、ges in static load from 0 to the maximum stabilized value (not including inrush current), or for static input line voltage variations; ripple voltage: maximum 75 mV, peak to peak. 4.3.4.2 For the endurance test (see 5.10): a) W cl d) the voltage between B and C (see tigure 1) shall be 7 V or 14 V an
18、d 6,5 V or 13 V according to the mode of use of the flasher (see 5.10.1 and 5.10.2); the voltage between B and C shall not deviate by more than 1 V when the load is raised from 0 to the maximum load (inrush current included); the voltage variation shall not exceed 370 mV after IO ms: static regulati
19、on: the voltage between B and C shall not deviate by more than 2 % with changes in static load from 0 to the maximum load (not including inrush current), or for static input line voltage variations: ripple voltage: maximum 300 mV, peak to peak. Copyright International Organization for Standardizatio
20、n Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 00:20:11 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 8052:1990(E) b -a = stabilized power supply f = main lamps b = flasher unit F = switch e = tell-ta
21、le lamp R, R, = trimming resistors Figure 1 - Wiring diagram to test flashers 4.4 Adjustments 4.4.1 The voltage at terminals D and E (see figure 1) of the filament lamps shall be adjusted to 6,75 V or 13,5 V after the flasher has been short- circuited by a shunt in accordance with 4.3.1. The lamps u
22、sed for the tests shall be selected so that the sum of the wattages does not deviate by more than + 2 % and - 6 % from the sum of the corresponding mean wattage values at 6,75 V or 13,5 v. The current to obtain the electrical load of the moped shall be adjusted, exact to 0,5 %, to the sum of the cor
23、responding mean wattage values at test voltage, by adjusting one of the trimming resistors RI or Rs, with the other neutralized. The filament lamps of the tell-tales shall also be included when they are connected in parallel to the main lamps. For the tests, the power supply shall be adjusted to obt
24、ain the voltages specified at terminals D and E at the different test temperatures without re- adjustment of the trimming resistor RI or Ra. 4.4.2 Where an operating tell-tale is fitted, it shall be connected in the test circuit as indicated by the manufacturer. 4.4.3 Where the flasher also operates
25、 as a hazard warning, an additional filament lamp corresponding to the tell-tale shall be provided for the hazard warning signal in accordance with the manufac- turers instructions. 5 Test procedure 5.1 Starting time 5.1.1 By convention, the following terms apply: a) beginning of the current “on”-ti
26、me: the moment when, starting frorn a voltage equal to or less than I,5 V (or 3 V), the working voltage reaches 5,5 V (or 11 V); b) beginning of the current “off”-time: the moment when, starting from a voltage equal to or ex- ceeding 5,5 V (or 11 V), the working voltage reaches I,5 V (or 3 V). 5.1.2
27、 The beginning of the first current “on”-time shall be not more than 1 s after switching on at point F for a preset working voltage of 6,5 V or 13 v. 5.1.3 The period of time for the first current “on”-time shall be at least 0,2 s. 5.1.4 The beginning of the first current “off”-time shall be not mor
28、e than I,5 s after switching on at point F for a preset working voltage of 6,5 V or 13 v. 5.1.5 The requirements of 5.1.2, 5.1.3 and 5.1.4 shall be complied with, averaged over three starts, sep- arated by cooling intervals of at least 5 min. The same requirements shall be complied with for one star
29、t onlv after 5 min continuous oneration. 3 Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 00:20:11 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0
30、8052:1990(E) 5.2 Flash-rate and current “on”-time 5.2.2 Current “on-time 5.2.1 Flash-rate 5,2.1.1 Functioning as direction indicator With the lowest and highest electrical load (i.e. for the smallest and the greatest number of lamps for which the flasher Is designed), the flash-rate shall comply wit
31、h the requirements of table 2 when, after at least five consecutive cycles, the mean value of at least three consecutive cycles is determined. Table 2 - Flash-rate for flashers as direction indi- Working voltage Stabilized temperature I T 6 12 - 18 + 2,5 7,5 15 - 18 in the latter case, a change in f
32、requency is required unless the flasher unit is designed to function with a tell-tale. This test shall be carried out in accordance with 4.4 but without re-adjustment of resistors RI and R2. 5.4 Voltage drop Measurements shall be carried out after at least five complete cycles. With 6,5 V or 13 V be
33、ing supplied to the flasher, the smallest voltage drop measured between the input and output terminals considered shall not exceed 0,4 V when operating for direction indicator and 0,5 V when operating for hazard warning. 4 Copyright International Organization for Standardization Provided by IHS unde
34、r license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 00:20:11 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 8052:1990(E) 5.5 Dielectric strength 57.1 Checking When new and in an ambient air relative humidity of 45 % to 75 %, the
35、 flasher shall be capable of withstanding for 1 min a voltage of 1000 V r.m.s. with a frequency of 50 Hz or 60 Hz between the ter- minals and the exterior metallic parts (mounting brackets, housing, rivets), if these parts are not electrically connected to one of the terminals. This test is not requ
36、ired where such exterior metallic parts do not exist or if an electrical connection exists as stated above. With sinusoidal vibrations between 20 Hz and 200 Hz with an acceleration amplitude of 50 m/s*, the flash-rates of the main filament lamps shall comply with the specifications of 5.2.1. However
37、, this test is only required at an ambient temperature of 23 “C + 5 “C. The tell-tales shall also still continue to function. Momentary frequency variations with respect to the main filament lamps are, however, allowed. This test shall be carried out successively in each of the three main axes. 5.6
38、Overload strength 5.7.2 Vibration endurance Before the test, the flasher terminals considered shall be shunted by 5 rn!LJ max. With the resistor R3 (see figure 2), the current shall be adjusted to 35 A. The shunt shall then be removed for the test. With a voltage of 6,5 V or 13 V, the flasher shall
39、be capable of resisting a maximum current of 35 A once only for 10 s between the input and output terminals considered, with the exception of tell-tale circuits. The flasher, not connected to the power supply, shall be subjected to sinusoidal vibrations varying from 20 Hz to 200 Hz and back with a f
40、requency variation of 2 octaves/min and an acceleration amplitude of 50 m/s*. After 45 h of test, equally divided between the three main axes, the flasher shall not have deteriorated and shall still comply with the conditions specified in 5.1 and 5.2. The tell-tales shall also still continue to func
41、tion. 5.8 Impact test 5.8.1 Test conditions At an ambient temperature of 23 “C + 5 “C, the flasher shall be suspended at the end of a wire of 500 mm length, the other end of which shall be fixed. The fixing point shall be in the plane of a vertical face of a steel block of mass 25 kg. The wire shall
42、 be moved to make an angle of 60” with the vertical in a plane perpendicular to the corresponding steel block surface. The flasher shall then be released to strike the block. This test shall be carried out in both directions of each of the three main axes. One test only shall be conducted on each sa
43、mple. I I 1 Any other equivalent method may be accepted. Figure 2 - Wiring diagram for overload strength test 5.8.2 Test requirements After at least 3 min operating as a direction indica- tor, or as a hazard warning if the flasher is designed for that function only, the flasher tested shall comply w
44、ith the requirements of 5.1, 5.2 and 5.3 at the tem- 5.7 Vibration test perature of 23 “C ) 5 “C. The frequency shall not vary, because of the impact, bv more than The flasher shall be mounted on a test bench in the position and with the mounting method correspond- ing to that on the vehicle. The te
45、st shall be carried out at an ambient temperature of 23 “C + 5 “C. 12 $cles/min. However, if the variation is more than 12 cycles/min, the impact test shall be repeated five times, after which it is sufficient that the flashers tested comply 5 Copyright International Organization for Standardization
46、 Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/25/2007 00:20:11 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 8052:1990(E) with the requirements of 5.2.1 at the temperature of 23 “C + 5 “C. - 5.9 Resistance to
47、 heat and cold The flasher shall withstand: a) a temperature of + 40 “C rf: 3 “C at a relative humidity of 90 % to 95 % for 48 h; b) a temperature of -l- 80 “C f 3 C for 1 II: c) a temperature of - 40 “C + 3 “C for 3 h. These tests shall be conducted with no electrical connection. At the end of each
48、 of these three tests, which are not cumulative, and after reaching an ambient tem- perature of 23 “C 5 5 “C, the flasher shall meet the requlrements of the tests specified in 5.1, 5.2, 5.3 and 5.4. 5.10 Endurance The flasher shall be connected as indicated in 4.3, but without trimming resistors. 5.
49、10.1 Functioning as direction indicator The circuit shall be supplied with 7 V or 14 V (measured at the terminals of the power supply), and the flashers shall be subjected to the following tests at an amblent temperature of 23 “C rt 5 “C, but one of the tests only is to be conducted on each sample: a) 100 h of working cycles consisting of 15 s “on” and 15 s “