标准摘要
[中文适用范围]： 本国际标准规定了道路车辆专用警示灯的尺寸，以确保互换性和准确定位，同时考虑到此类装置在投射光束垂直横截面上的光强度变化迅速。它还规定了（见附件 A）用于将专用警示灯直接安装在车辆车顶或车身钢板上的磁性底座安装座的测试方法（D 类专用警示灯）。注：在某些国家和国际机构中，有时使用“灯”一词代替“灯泡”。 [外文原描述]： ISO 4148:2004 specifies the dimensions of special warning lamps for road vehicles, in order to ensure interchangeability and accurate positioning, bearing in mind the rapid change of light intensity from such devices in a vertical cross-section of the projected beam. It also specifies methods for testing magnetic-base-mountings used to install special warning lamps directly on the steel sheet of the roof or body of a vehicle.
英文名称Road vehicles — Special warning lamps — Dimensions