摘要
依据JGJ 46-2005《施工现场临时用电安全技术规范》、GB 50194-2014《建设工程施工现场供用电安全规范》及GB 13955-2005《剩余电流动作保护装置安装和运行》等规范,结合工程实例分析施工现场用电中剩余电流动作保护级数及各级剩余电流动作保护参数选择的具体要求,提出施工现场用电泄漏电流的计算方法。同时,分析选用电磁式剩余电流动作塑壳断路器的必要性。
According to Technical code for safety of temporary electrification on construction site （JGJ 46- 2005） , Code for safety of power supply and consumption for construction site （GB 50194- 2014）, and Installation and operation of residual current operated protective devices （GB 13955- 2005）, etc. and in combination with engineering examples, the protection levels of residual current operated protective devices and specific requirements for corresponding parameters selection are analyzed, and the calculating methods for leakage current on construction sites are proposed. Besides, the necessity for selecting electromagnetic type molded case circuit breakers （ MCCB） for residual current operated protective devices is analyzed.
出处
《建筑电气》
2017年第2期45-51,共7页
Building Electricity
关键词
施工现场电气环境
施工用电
接地故障
电击防护
漏电保护
泄漏电流
电子式剩余电流动作保护器:电磁式剩余电流动作保护器
electrical environment on constructionsites
electricity for construction
grounding fault
electric shock protection
leakage current protection
leakageoperatedresidualcurrent
electronic type residual currentprotective device
electromagnetic typecurrent operatedprotective device
