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编者按 :近年来 ,细心的过江人一定会发现上海的两条过江隧道———延安东路隧道和打浦路隧道里的照明光源都在细微变化 :延安东路隧道浦西段将原来双管灯具中两根日光色灯管中的一根替换为低色温(30 0 0K)的暖白光 ,形成一白一黄的混光照明模式 ,而打浦路隧道的浦东段将原来的高压钠灯换成金卤灯 ,使半条隧道为黄光照明 ,另半条为白光照明 ,这些变化无非要比较在隧道这样的环境下 ,究竟那一种光源更适合隧道中驾车作业的照明需要。我们目前并不知道结果如何 ,但相信 ,让大量的试验通过长期的实践比较 ,一定会得出结论 ,这里 ,我们愿这项实验得到可靠的结果 ,在今后的照明实践中推广。
Editor’s Note: In recent years, attentive overcomers will surely find the two overcrowded tunnels in Shanghai --- Yan’an East Road tunnel and Dapu Road Tunnel are all subtle changes in light source: the Panyu section of Yan’an East Road Tunnel will be the original One of the two daylight fluorescent tubes in the double-tube luminaire is replaced by a warm white light of a low color temperature (30,000 K) to form a white-yellow mixed light illumination mode, while the Pudong section of the Dapu Road Tunnel converts the original high voltage Sodium lamp replaced by metal halide lamp so that half of the tunnel for the yellow lighting, and the other half for the white lighting, nothing more than changes in the tunnel environment, what kind of light source is more suitable for driving tunnel lighting needs. We do not know the result at this moment, but I believe it will be concluded that a large number of experiments will be conducted through long-term practice. Here, we hope that this experiment will yield reliable results and promote it in future lighting practices.