单元1 走进电工技术 ................................................................................................................ 1__eol__1.1 认识电工实训室 ................................................................................................................ 1__eol__1.1.1 实训室的电源配置 .................................................................................................. 2__eol__1.1.2 常用电工工具与基本电工仪表 .............................................................................. 2__eol__1.1.3 实训规则与安全电压 ............................................................................................ 7__eol__1.2 安全用电 ............................................................................................................................ 8__eol__1.2.1 触电与触电防护 ...................................................................................................... 9__eol__1.2.2 电气火灾的防范与扑救 ........................................................................................ 11__eol__1.2.3 实训：模拟练习触电现场处理与灭火器的使用 ................................................ 12__eol__单元小结 .................................................................................................................................. 12__eol__单元复习题 ............................................................................................................................... 13__eol__教学微视频 ............................................................................................................................... 13__eol__单元2 直流电路 ........................................................................................................................ 14__eol__2.1 电路与电路模型 .............................................................................................................. 15__eol__2.1.1 电路的组成与电路图 ............................................................................................ 15__eol__2.1.2 电路模型及工作状态 ............................................................................................ 16__eol__2.1.3 电池及应用 ............................................................................................................ 17__eol__2.1.4 实训：识、画电路图 识别常用电池 ................................................................ 19__eol__2.2 电路的基本物理量及其测量 .......................................................................................... 20__eol__2.2.1 电流和参考方向 .................................................................................................... 20__eol__2.2.2 电动势、电压和电位 ............................................................................................ 21__eol__2.2.3 电能和电功率 ........................................................................................................ 24__eol__2.2.4 实验：直流电路电流、电压的测量 .................................................................... 25__eol__2.3 电阻 ................................................................................................................................. 27__eol__2.3.1 电阻及其特性 ........................................................................................................ 28__eol__2.3.2 电阻器 .................................................................................................................... 29__eol__2.3.3 实验：电阻的测量 ................................................................................................ 34__eol__2.4 欧姆定律 .......................................................................................................................... 40__eol__2.4.1 欧姆定律 ................................................................................................................ 40__eol__2.4.2 电阻的串联、并联及混联 .................................................................................... 43__eol__2.4.3 实验：电源的外特性 ............................................................................................ 50__eol__2.5 实训：常用电工材料与导线的连接 .............................................................................. 54__eol__2.6 基尔霍夫定律 .................