T/CAMRA 003.2-2018 Technical specifications for automotive lighting and light signal devices - Part 2: Automotive rear external lighting and light signal devices

Scope

Scope: This standard specifies the basic requirements, technical requirements, test methods, inspection rules, marking, packaging, transportation, and storage for automotive rear exterior lighting and optical signal devices. This standard applies to the production, sales, inspection, and market supervision of automotive M, N, and O-class rear exterior lighting and optical signal devices. Main technical content: 4. Explanation of the standard content 4.1 The standard format is prepared in accordance with the requirements of GB/T 1.1-2009. 4.2 The definitions of various parameters are based on the relevant provisions of GB4599, GB11564, and GB4785, and refer to the definitions in the current mainstream automobile manufacturers' enterprise standards. 4.3 For the electromagnetic compatibility test requirements and test methods, considering that there are no major differences between rear exterior lamps and front exterior lamps, the corresponding provisions in Part 1 of the front exterior lamps are continued to be used. 4.4 The setting of the conditions for comprehensive vibration and dustproof tests is related to the actual installation position of the samples. Both rear exterior lamps and front exterior lamps are installed on the vehicle body, so the test methods in Part 1 of the front exterior lamps are also continued to be used. 5. Explanation of the sources of main parameters and test methods 6.2.1 Fogging and defogging test Car headlights fogging is quite common, and similar tests are included in various enterprise standards. Currently, the mainstream method uses a dual temperature chamber to control different temperature and humidity conditions in front and back of the headlights, simulate the actual use situation by spraying water, and then observe the fogging after placing for a certain period of time or powering on for a certain period of time. This method requires customized testing equipment. Another method is to pre-treat the headlights under certain tempera

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