检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:杨慕强
出 处:《现代建筑电气》2014年第10期7-9,38,共4页Modern Architecture Electric
摘 要:应急照明对人身安全保障起着重要作用。分析了应急照明电源、充电电源和配电线路。讨论了应急照明控制充电及准确投入问题。指出一个非可靠保障的充电电源被切断时刻,才是准确投入应急照明工作时机的最佳配合。The emergency lighting plays an important role for personal security. The power, charging source and distribution line of emergency lighting were analyzed. The problems of control modes and accurate switching timing for emergency lighting were discussed. It was pointed out that the accurate switching timing of the emergency lighting is best when the unreliable security charging power supply is cut off.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.229