T/STSI 8-2020 Urban landscape lighting LED lights general technical requirements for interference light limitations

Scope

Scope: This document specifies the classification, limitation requirements, and mitigation measures for interference light from LED lighting in urban landscape applications. This document applies to LED lighting landscape applications in buildings (including historic buildings), structures, neighborhoods, squares, bridges, parks, scenic areas, and other carriers. Main technical content: Chapter 1: Scope This chapter outlines the scope of application of this standard. Specifically, it specifies the classification, limitation requirements, and mitigation measures for interference light from LED lighting in urban landscape applications; and it applies to LED lighting landscape applications in buildings (including historic buildings), structures, neighborhoods, squares, bridges, parks, scenic areas, and other carriers. Chapter 2: Normative References This chapter lists the normative references cited in this standard: - One national standard: GB/T 2900.65 "Electrotechnical Terminology - Lighting"; - One industry standard from the Ministry of Housing and Urban-Rural Development: JGJ/T 163 "Design Specifications for Urban Nightscape Lighting". Chapter 3: Terms and Definitions This chapter provides the terms and definitions used in this standard: The terms and definitions defined in GB/T 2900.65 and JGJ/T 163 apply to this document, specifically clarifying the definitions of eight terms including "landscape lighting", "interference light", "spill light", "glare", "light pollution", "nighttime shutdown period", "upward light ratio", and "floodlighting". Chapter 4: Classification of Interference Light This chapter classifies interference light from LED lighting in urban landscape applications according to its impact on surrounding environments into five categories: interference light affecting residential areas, interference light affecting pedestrians, light pollution affecting the night sky, interference light affecting motor vehicle traffic, and interfere

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