GB/T 7002-2008 in English

本标准应与GB/T 9468一起使用。
本标准规定了投光照明灯具的光度测试方法，并为投光照明灯具光度测试的实验室设施、试验和投光照明灯具的光度测试报告提供指导。本标准适用于使用电光源、有稳定视觉照明、安装于室内外的投光照明灯具的光度测试。电影或舞台用聚光灯、天幕灯等可参照本标准进行测试。
本标准代替GB/T 7002-1986《投光照明灯具光度测试》，本标准与GB/T 7002-1986的差异如下：
——对于标准中灯具的光度学坐标系统、试验的实验室要求以及试验用光源、镇流器与灯具的准备等内容和GB/T 9468相关附录相同，不再重复叙述，相关内容应用GB/T 9458-2008的规定；
——修改1.2关于投光灯具使用的光源类型，增加发光二级管；
——增加第2章“规范性引用文件”；
——修改3.6.3关于测试距离的描述，删去“30m”的内容；
——修改5.2.2.4，减小投光灯具测试用的角度间隔。

Scope

This standard specifies the photometric test methods for flood lighting luminaires, and provides guidance for the laboratory facilities, tests and photometric test reports for flood lighting luminaires. This standard is applicable to the photometric test of flood lighting fixtures (hereinafter referred to as floodlights) that use electric light sources, have stable visual lighting, and are installed indoors and outdoors. Film or stage spotlights, skylights, etc. can be tested with reference to this standard. This standard is not applicable to photometric testing of road lighting lamps, nor is this standard applicable to lamps with a half peak angle less than 2° (such as searchlights). This standard should be used together with GB/T 9468.