液晶显示器接地电阻测试技术研究  

Study on measurement technology of resistance of earthing conductors used in liquid crystal display

作　　者：高宏伟[1] 刘立[1] 韩正涛[1] 

机构地区：[1]国家广播电视产品质量监督检验中心,北京100015

出　　处：《电视技术》2016年第4期135-138,142,共5页Video Engineering

摘　　要：通过介绍液晶显示器适用的新版信息技术设备安全标准GB4943.1—2011与旧版信息技术设备安全标准GB4943—2001中接地电阻测试要求的差异,阐述了信息技术设备接地电阻测试的详细步骤,重点说明如何确定试验电流和试验时间,同时分析了试验仪器的测试原理,总结给出了测试时的注意事项。The differences in resistance of earthing conductors test requirements between the new information technology equipment of liquid crystal display applicable safety standard GB4943.1--2011 and the old version GB4943--2001 is introduced, it expounds the detailed steps of test of resistance of earthing conductors in information technology equipment, especially on how to determine the test current and testing time. At the same time, the test principle of the instruments is analyzed, and the points for attention during the test are presented.

关 键 词：接地电阻 保护连接导体 保护电流额定值 过流保护装置的额定值 

分 类 号：TN948[电子电信—信号与信息处理]