目 录第一章 基础知识...............................................................................................4第一节 基本概念..............................................................................................................4第二节 电气常用颜色......................................................................................................7一、依导线颜色标志电路时.......................................................................................7二、依电路选择导线颜色时.......................................................................................8第二章 低压知识...............................................................................................9第一节 低压电器原则及功能..........................................................................................9一、低压电器旳原则.................................................................................................10二、几种低压电器旳功能.........................................................................................10第二节 低压电器构造....................................................................................................11一、低压断路器.........................................................................................................11二、塑壳式断路器.....................................................................................................13第三章 高压知识.............................................................................................20第一节 基本元器件........................................................................................................20一、空气断路器.........................................................................................................20二、六氟化硫断路器.................................................................................................20三、真空断路器....................................................................................................