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GB 28710-2012 English PDF

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GB 28710-2012: [GB/T 28710-2012] Garden patrol minibus -- Head lamps
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Standard similar to GB 28710-2012

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Basic data

Standard ID GB 28710-2012 (GB28710-2012)
Description (Translated English) [GB/T 28710-2012] Garden patrol minibus -- Head lamps
Sector / Industry National Standard
Classification of Chinese Standard Y57
Classification of International Standard 97.200.40
Word Count Estimation 12,154
Quoted Standard GB 4599-2007; GB 4785-2007; GB 15766.1-2008
Regulation (derived from) National Standards Bulletin No. 24 of 2012
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This Chinese standard specifies the non-road sightseeing car headlamp terms and definitions, different types of headlamps, requirements and test methods. This standard applies to non-road sightseeing car headlights.

GB 28710-2012: [GB/T 28710-2012] Garden patrol minibus -- Head lamps

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Garden patrol minibus.Head lamps ICS 97.200.40 Y57 National Standards of People's Republic of China Off-highway vehicle headlamp tourism Published 2012-09-03 2013-07-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China issued

Foreword

Chapter 5 of this standard is mandatory, the rest are recommended. This standard was drafted in accordance with rules GB/T 1.1-2009 given. This standard is proposed and managed by the National cableway and rides Standardization Technical Committee (SAC/TC250). Drafted by. National Construction Machinery Quality Supervision and Inspection Center, North Hella Lamp Co., Ltd., Shandong Lu Pui lights Shares Ltd., Suzhou benefits of high electric vehicles Manufacturing Co., Ltd., Shenzhen Maxi Er electric cars Limited, Shanxi Yongji battery depot. The main drafters. Lei Xiao Wei, Chen Yingjie, Xu Yan Xiu, Zhang Xingjun, Shi Junwei, Li Li, Liu Qian, Zhang Mingqing, Hong Yu, Jiao Jianliang. This standard is the first release. Off-highway vehicle headlamp tourism

1 Scope

This standard specifies the tourism-highway vehicle headlamp terms and definitions, different types of headlamps, requirements and test methods. This standard applies to non-road tourist vehicle headlamps.

2 Normative references

The following documents for the application of this document is essential. For dated references, only applies to the version dated paper Pieces. For undated references, the latest edition (including any amendments) applies to this document. GB 4599-2007 automobile headlamp with filament lamps GB 4785-2007 predetermined mounting and trailer exterior automotive lighting and optical signaling devices GB 15766.1-2008 lamp size for road vehicles, photovoltaic performance requirements

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Headlamp headlamp Lighting the road ahead of the vehicle, and the driver of the vehicle to other persons using the road without causing glare, or produce a sense of comfort lighting. 3.2 Light distribution lightdistribution Luminosity of visible light emitted by the lamp (illuminance or the emission intensity) distribution. [GB 4599-2007, Definitions 3.1] 3.3 Mirror light distribution lens The outermost member of the transmission light beam by the light emitting surface. [GB 4599-2007, the definition 3.4] 3.4 Coating coating Light microscopy with one or more layers of coating material on the outer surface products. [GB 4599-2007, the definition 3.5] 3.5 Closed headlamp sealedbeamheadlamp Using a closed headlamp lighting group. [GB 4599-2007, the definition 3.7] 3.6 Semi-enclosed headlamps headlampwithreplaceablefilamentlamp Using the semi-closed headlamp lighting group. [GB 4599-2007, the definition 3.8] 3.7 Nominal voltage ratedvoltage Marked on the light bulb or a sealed pack voltage (unit. V). [GB 4599-2007, definitions 3.10] 3.8 Nominal power ratedwattage A light bulb or a closed group (or the box) indicated power (unit. W). [GB 4599-2007, definitions 3.11] 3.9 Light distribution screen measuringscreen Lamps with light test performance of the screen. [GB 4599-2007, definitions 3.12] 3.10 Cutoff line cut-offline Beam is projected onto a light distribution screen, the boundary was visually significant change in brightness perceived. [GB 4599-2007, definitions 3.13] 3.11 HV point HVpoint Horizontal line passing through the center of the lamp to the reference light with the foot of the screen. [GB 4599-2007, the definition 3.15.1] 3.12 hh line h-hline On the light distribution screen by a horizontal line HV point. [GB 4599-2007, the definition 3.15.2] 3.13 vv line v-vline On the screen light distribution of the vertical line passing through the point HV. [GB 4599-2007, the definition 3.15.3] 3.14 Standard filament lamps standardfilamentlamp Measuring lamp light distribution properties, a filament having a geometrical dimensional tolerances colorless bulb (except amber bulb) and reduced, for each type of Standard filament lamps provide for a nominal voltage only. [GB 4599-2007, definitions 3.16]

4 different types of headlamps

The following contents are different for different types of headlamps sentence. --- 17510; --- by reflection, refraction, absorption or deformation and/or work, changing optical effect element; --- with light microscopy and the coating material; --- filament lamp type.

5 Requirements

5.1 Basic requirements 5.1.1 headlamp outer surface without cracks, bubbles and other defects. 5.1.2 headlamp shall be white light color, chromaticity characteristics which should meet the predetermined 4785-2007 GB . 5.1.3 headlamp housing should indicate the applicable lamp type, voltage and power. 5.2 Basic parameters The basic parameters of the headlamp shall meet the requirements in Table 1. Table 1 Basic parameters headlamp Nominal voltage/V nominal power/W 1235 ~ 65 2450 to 75 5.3 Performance Requirements 5.3.1 insulation Dielectric strength between live parts of the headlamp enclosure therewith of not less than 1MΩ. 5.3.2 light distribution properties 5.3.2.1 on the light distribution screen, the light should have a significant near-cutoff line, which is a horizontal section taken along line vv on the left, to the right of the line HV-H1. 5.3.2.2 illuminance value on the light distribution screen to comply with Table 2, the measurement points shown in Figure 1 Table 2 illuminance value on the screen light distribution Test point (region) luminance value/lx on the screen light distribution B50L ≤0.6 75R ≥9.6 75L ≤14.4 50R ≥9.6 50L ≤18 50V ≥4.8 25L ≥1.6 25R ≥1.6 Ⅲ area at any point ≤1.0 Ⅳ area at any point ≥2.4 Ⅰ area at any point ≤2E50R Note 1. E50R illuminance value is measured with the test points on the light screen 50R. Note 2. illuminance data listed in the table is from the center of the reference light illuminance value at 25m screen. In millimeters Screen light distribution of FIG. 5.3.3 Temperature Performance Headlamps should work in test temperature, after which the test light distribution properties should meet the requirements of Table 2. 5.3.4 vibration resistance Headlamps should work in vibration test, the parts are not deformed, loose, falling off, breaking phenomenon, after which the test light distribution You should be able to meet the requirements of Table 2. 5.3.5 Stability of the light distribution properties It should work in the headlamp light distribution performance stability test, after which a light distribution performance testing shall meet the requirements in Table 2. 5.3.6 resistant performance plastic with a light source irradiating light microscopy headlamp After the test samples were irradiated by a light source in claim 6.6, the outer surface should be free of cracks, scratches, chips and deformation. Accordance with the provisions of Appendix A Party Method for testing its permeability, the change should not exceed 0.020 Δtm. 5.3.7 light microscope equipped with a plastic coating adhesion After the samples with light microscopy plastic coating adhesion test according to the requirements of 6.7, and a lattice intersection grid scratch wound area should not exceed 15%. 5.3.8 mechanical wear properties of the plastic with light microscopy After the test sample to mechanical wear plastic with light microscopy 6.8 as required, the transmittance change of the sample is not greater than 0.100 Δtm; diffusion through The rate of change over Δdm not more than 0.050.

6 Test methods

6.1 Dielectric strength test Insulating strength between 500V insulation resistance meter measuring the charged portion of the headlamp housing. 6.2 Experimental light distribution properties A light distribution performance test methods and equipment as specified in GB 4599-2007, closed headlamp light distribution test should be carried out at a nominal voltage Line; light test semi-closed type headlamp appropriate use of standard filament lamps, the luminous flux test line with GB 15766.1-2008 Provisions. 6.3 Temperature Test 6.3.1 Test This test by the low and high temperature test composition. 6.3.2 The test shall be carried out in the test chamber. 6.3.3 the test voltage is 13.5V/28V. Table 3 test time and temperature. Table 3 High/low temperature test Test items temperature/℃ time/h Sample Status Temperature 60 ± 2 1 continuous light Low temperature -30 ± 2 1 continuous light 6.4 Vibration Resistance Test 6.4.1 test should be performed in the vibration test stand are vertical, transverse and longitudinal vibrations in three directions. 6.4.2 Test voltage 13.5V/28V, continuous lighting. 6.4.3 predetermined vibration test was carried out in Table 4. Table 4 Vibration test Vibration Frequency/Hz vibration acceleration/(m/s2) Vibration Time/h Up and down all around 3 66.6 58.8 1.5 1.5 6.5 light distribution performance stability test The test voltage was 13.5V/28V, continuously lights the lamp goes out after 12h, when the sample to be cooled to ambient temperature, the light distribution lens should be no significant change Shape, distortion, cracking or discoloration of the samples were tested again, the light distribution performance. The light source of light irradiation test with a plastic mirror 6.6 Take three new radius of curvature of the light distribution lens sample (with a minimum size of a material can be a sample of alternative φ70mm ± 10mm, an outer surface Diameter of not less than 300mm, a middle size measurement for at least a sufficient area of 15mm × 15mm flat. ) Radiation light source Controlled trials. It corresponds to the spectral energy distribution of light source 5500K ~ 6000K black body. To minimize wavelength of less than 295nm and greater than 2500nm effects of radiation, the light source should be placed in between the respective filter samples. Sample irradiance of 1200W/m2 ± 200W/m2, received radiation energy of the test period 2200MJ/m2 ± 200MJ/m2. In the test chamber, the sample at the same Black panel temperature in the horizontal position 50 ℃ ± 5 ℃. The sample at a speed of 1r/min ~ 5r/min is rotated around a light source, and sprayed conductance Distilled water is less than 1mS/m (when 23 ℃ ± 5 ℃), the spray pattern. 5min spray drying 25min, until the end of the trial. 6.7 with a plastic coating adhesion test light microscopy On the light distribution lens coating 20mm × 20mm surface area, designated by the hob at approximately 2mm × 2mm grid, and draw antireflective coating. A width of not less than 25mm, the adhesive force was 2N/cm ± 0.4N/cm sample of adhesive tape is pressed against the grid area at least 5min, visco One end of the tape, the vertical force is applied to Ping Heng the adhesion to the surface direction to 1.5m/s ±/s 0.2m adhesive tape peeled off at a uniform rate. 6.8 Mechanical abrasion test of plastic with light microscopy Take three new radius of curvature of the light distribution lens sample (with a minimum size of a material can be a sample of alternative φ70mm ± 10mm, an outer surface Diameter of not less than 300mm, a middle size measurement for at least a sufficient area of 15mm × 15mm flat. ) Gauge by Appendix B Test Method given mechanical abrasion test. Measured transmittance variation change of the transmission and diffusion according to the method specified in Appendix A.

Appendix A

(Normative) The method of measuring diffuse light and transmitted light A.1 equipment principle (see Figure A.1) Figure A.1 equipment principle Half divergence angle of the beam collimator K, β2 = 17.4 × 10 -4rad, and by the aperture diaphragm DT sample rack positioned at the of 6mm limit. DT between the diaphragm and the receiver R, the achromatic lens L2 (spherical aberration corrected) coupled, L2 in the sample shall be the diameter of the half apex angle β2 = 14 ° in the diffusion of light through the cone. DD annular aperture located in the focal plane of the lens L2, which are half-field angle α2 = 1 ° And αmax 2 = 12 °. [Namely. DD0 = 2 × tan (α2 ) × F2 = 0.0349F2, DDmax = 2 × tanαmaxæè 2 × F2 = 0.425F2 ]. Opaque center portion of the annular diaphragm DD source for blocking direct light, may be removed from the optical path, but it can be accurately returned to the original Starting position. L2DT focal distance F2 and the lens L2 of choice, DT should be made as to completely cover the receiver R. When the initial incident light flux is 1000 units, the absolute precision of each reading should be higher than 1 unit. A.2 measure Measure and record the readings of the method according to Table A.1. Table A.1 method of measuring diffuse light and transmitted light Reading the sample central portion DD Remarks T1 None None initial reading of the incident light T2 has a reading light transmittance (before test) no new materials in the field of view angle of 24 ° in There T3 (after test) after reading transmitted light without test material at 24 ° angle of the field of view There T4 (before test) has diffuse light reading new materials There T5 (after the test) with a light diffusing material test readings A.3 result processing A.3.1 calculated transmittance change Measurements of three samples, sample transmittance change Δtm = ΣΔti/3, where Δti = (T2i-T3i)/T 2i; i = 1,2,3. Calculating change of the transmission diffusion A.3.2 Measurements of three samples, sample diffuse transmittance change Δdm = ΣΔdi/3, where Δdi = (T5i-T4i)/T 2i; i = 1,2,3.

Appendix B

(Normative) Mechanical abrasion test method B.1 Test Equipment B.1.1 gun Gun shall be fitted with a nozzle having a diameter of 1.3mm, when the working pressure is 0.6 0.05-0 MPa, the flow rate of the ejection liquid (0.24 ± 0.02) L/min. On the wear surface 380mm ± 10mm from the nozzle at a fan-shaped spread jet formed having a diameter of Region of 170mm ± 50mm. B.1.2 The assay mixture 7 by the Mohr hardness, particle size is between 0mm ~ 0.2mm, and showed a normal distribution, and the hard sand angular factor does not exceed 1.8 to 2 205g/m3 of water. Which ratio silica sand containing 25g per liter of water. B.2 Test Outer mirror surface of the light distribution to be subjected to one or more of the action of the sand jet, the jet should be substantially perpendicular to the specimen surface. Performing tests near the light distribution lens placed one or several glass sample block as a reference, in order to test the wear of the whole sample and A wear surface uniformity. Injection the test liquid mixture, until the change in the reference glass specimen diffuse transmittance Δd reaches 0.0250 ± 0.0025 when the termination.

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