紫外线灯管的安装方法与消毒效果

The installiug method and sterilizing effect of ultraviolet lamp

报告了目前国内外常见的４种紫外线灯管的安装与消毒效果，以无罩悬空吊式为最佳。在一间２４．５ｍ３的换药室内，照射１ｈ即可达到＜Ⅲ类标准的细菌数。而有罩悬空吊式，推车活动式，固定贴墙式均因其罩背面空间阻挡了２０％～４０％的紫外线照射，从而降低了杀菌效果，需消毒２ｈ才达到Ⅲ类标准，也只能维持１ｈ。统计学处理，无罩悬空吊式消毒效果比其它安装方法差异有显著意义。

Among the four types of installing method and sterilizing effect of ultraviolet lamp in China and abroad,the non-shaded suspending type was the best in this study.In a 24.5m3 dress changing room,the bacterial numbers reached less than Ⅲ class standard after one hour of irradiation.The shaded suspending type,the mobile cart-pushing type and the fixed wall-adhesive type decreased the sterilizing effect due to the obstruction of 20%～40% ultraviolet irradiation by the back space of the lampshade,and it took two hours of sterilization to reach the Ⅲ class standard which maintained only one hour,Therefore,there was significant difference between the sterilizing effect of the non-shaded suspending type and that of other installing methods.Author's address(Affiliated Hospital of Guangdong Medical College 524001 Zhan Jiang P.R.China)