GB 11554
ChinaAutoRegs｜GB 11554-2008英文版/English/翻译/机动车和挂车用后雾灯配光性能
Photometric Characteristics of Rear Fog Lamp for Power-Driven Vehicles and Their Trailers
GB 11554-2008英文版/English/翻译
1 SCOPE
This Standard specifies the specifications, test procedures and inspection rules of rear fog lamps for power-driven vehicles.
This Standard applies to various types of rear fog lamps intended for power-driven vehicles and their trailers of categories L3, L4, L5, L7, M, N and O. Rear fog lamp for power-driven vehicle is shorted as rear fog lamp in this standard.
L7 refers to four-wheel motorcycle.
2 NORMATIVE REFERENCES
The following Standards contain provisions which through reference in this text, constitute provisions of this Standard. For dated references, subsequent amendments (corrigenda excluded) to, or revisions of, any of these publications do not apply. However, parties to agreements based on this Standard are encouraged to investigate the possibility of applying the most recent editions of the Standards indicated below. For undated references, the latest edition of the applicable Standards referred to apply.
GB 4599 Photometric characteristics of headlamps for motor vehicles
GB 4785 Prescription for installation of the external lighting and light-signaling devices for motor vehicles and their trailers
GB 15766.1 Lamps for road vehicles – Dimensional, electrical and luminous requirements (GB15766.1-2000, idt IEC 60809:1995)
ECE R37 Uniform provisions concerning the approval of filament lamps for use in approved lamp units on power-driven vehicles and of their trailers
3 术语和定义
GB 4785 确立的术语和定义适用于本标准。
4 要求
4.1 一般规定
4.1.1 后雾灯应设计和制造成在正常使用条件下，即使受到振动，仍能保证满足使用要求和符合本标准的规定。
4.1.2 后雾灯中的光源模块，应设计为即使在黑暗中也能将其安装在正确的位置上；并且能够防止误操作。
4.1.3 当可变光强后雾灯的光强调节装置失效时，应能自动满足稳定光强后雾灯的配光性能要求。
4.1.4 如果使用灯丝灯泡，应符合GB 15766. 1 或ECE R37 规定。
4.2 配光性能
4.2.1 在下述规定的角度范围内，后雾灯各方向上的发光强度应符合以下规定：
4.2.1.1 通过基准铀线的水平H H 线和垂直V V 线上，在基准轴线左、右10。和上、下5。之间（见图1），其发光强度最小限值为150 cd;
4.2.1.2 在图1 配光屏幕中的菱形区域内，如果目视检查发现发光强度有明显的变化，则除检查H-H 线和v-v 线上是否达到上述规定外，还应检查该区域内其余部分发光强度，最小限值为75 cd;
4.2.1.3 在可以看到灯的所有方向上，稳定光强后雾灯发光强度最大限值为300 cd ；可变光强后雾灯发光强度最大限值为840 cd ，但在夜晚工作时不超过300 cd 。
4.2.2 对于配备有一个以上光源的单灯，当其任何一个光惊失效时，仍应满足发光强度最小限值要求。
当所有光掘点亮时，不应超过发光强度最大限值。
4.2.3 在基准轴线观察方向上的视表面应不大于140 cm2。