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GB/T 38439-2019: Measuring specifications for methods to obtrusive light of outdoor lighting
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GB/T 38439-2019: Measuring specifications for methods to obtrusive light of outdoor lighting

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Measuring specifications for methods to obtrusive light of outdoor lighting ICS 29.140.99 K70 National Standards of People's Republic of China Interference light measurement specification for outdoor lighting 2019-12-31 release 2020-04-01 implementation State Administration of Market Supervision Published by the National Standardization Administration

Contents

Foreword III 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Basic requirements 2 4.1 Measurement purpose 2 4.2 Measurement conditions 2 4.3 Measurement method 2 5 Measuring instruments 2 5.1 (Light) Illuminance Meter 2 5.2 (Light) Luminance Meter 2 5.3 Ranging instrument 2 6 Measurement method 3 6.1 Measurement of interference light in residential areas 3 6.2 Measurement of pedestrian interference light 4 6.3 Measurement of night sky light pollution 4 6.4 Measurement of road traffic disturbance light 4 6.5 Measurement of interference light for advertising and signage 4 6.6 Measurement of interference light on the media facade 5 6.7 LED display interference light measurementFive 7 Reports and records 5 7.1 Measurement reports and records 5 7.2 Record form 5 Appendix A (Normative Appendix) Calculation method for threshold increment of glare generated by non-road lighting installations on urban roads Appendix B (Informative) Measurement Record Form 8 Figure A.1 Schematic diagram of threshold increment calculation parameters 7 Table B.1 Measurement records Table 8

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed and managed by the National Public Facilities Service Standardization Technical Committee (SAC/TC537). This standard was drafted. Beijing Institute of Lighting, Beijing Qingcheng Pinsheng Lighting Research Institute Co., Ltd., China Academy of Building Research Division, China Institute of Metrology, Beijing Institute of Standardization, Tsinghua University Architectural Design and Research Institute Co., Ltd., Tianjin University Architecture Institute, Shanghai Bifu Lighting Engineering Design Co., Ltd., Horse Technology Group Co., Ltd., Huizhou Nexus Optoelectronic Technology Co., Ltd., Beijing New Space-Time Technology Co., Ltd., Beijing Liangye Environmental Technology Co., Ltd., Tongfang Co., Ltd., Tsinghua Kangli Urban Lighting Research Institute of Shandong Research Design Institute Co., Ltd., Yangmei Guangcheng (Beijing) Architectural Design Co., Ltd., Masco Lighting Equipment (Shanghai) Co., Ltd., Ningbo Euroc Electric Co., Ltd. The main drafters of this standard. Li Tienan, Ma Yan, Xu Hua, Li Qifeng, Liu Hui, Zhou Gang, Li Yuan, Zhang Mingyu, Tian Chuan, Mu Hongyi, Xu Nan, Cao Xiaobing, Dai Baolin, Cheng Yu, He Wenliang, Zeng Chuan, Yan Shi, Chang Zhigang, Rong Haolei, Ma Liqun, Liang Yi, Yang Bo, Zhu Feibiao, Li Tong, Zhang Yating, Wang Zhengtao, Wang Xiaoying, Zhang Qiuyan, Jiang Lina, Chen Ting. Interference light measurement specification for outdoor lighting

1 Scope

This standard specifies the general requirements, measurement instruments, measurement methods, reports and records for the measurement of interference light generated by outdoor lighting facilities. This standard applies to residential areas, transportation roads, urban public resting places, and natural light emitted by outdoor lighting and related lighting devices. Measurement of disturbing light in areas such as ecological zones and people.

2 Normative references

The following documents are essential for the application of this document. For dated references, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 2900.65 Electrical terminology lighting GB/T 7002 Photometric Test of Flood Lighting GB/T 9468 General requirements for photometric measurement of luminaire distribution GB/T 35626-2017 outdoor interference interference light specification JJG211 Luminance Meter Verification Regulations JJG245 Light Meter Verification Regulations JGJ/T 119 Architectural Lighting Terminology Standard

3 terms and definitions

The terms and definitions defined in GB/T 2900.65, GB/T 35626-2017 and JGJ/T 119 and the following apply to this document. 3.1 Obtrusivelight Light that causes annoyance, discomfort, distraction, or decreased ability to view important information due to intensity or directional characteristics. Note. Rewrite GB/T 35626-2017, definition 3.2. 3.2 [光] illumination iluminance The illuminance of a point on the surface is the quotient obtained by dividing the luminous flux dΦ incident on the facet containing the point by the area dA of the facet. Note. The unit is lux (lx), 1lx = 1lm/m2. 3.3 Light The luminous intensity per unit projected area is calculated as. L = d2Φ/(dA · cosθ · dΩ) Where. L --- brightness, unit is candela per square meter (cd/m2); d2Φ--the luminous flux propagated by the beam element at a given point within the solid angle dΩ containing the direction, the unit is lumens (lm); dA --- includes the cross-sectional area of the beam at a given point, in square meters (m2); θ --- the angle between the beam cross section normal and the beam direction, the unit is degree (°); ...