摘要
本文从满足控制线路的工作可靠(无论在正常工作或不正常工作时,均不会引起事故),控制线路要简单、要经济的要求这两项观点出发,指出在设计中应如何正确选择与使用电器的一些具体问题。
Based on the two points that the cohtrolling circuit should both be reliable (in the sense that no accident would be resulted cither under normal work state or under abnormal work state)and be simple and economical. this text gives some practical instructions in choosing and using the right electric appratus in circuit designing.
