电气图的分类和定义详解，系统图、电路图、功能图等一应俱全，全都了解！

电气图是一种用电气图形符号、带注释的围框或简化外形表示电气系统或设备中组成部分之间相互关系及其连接关系的图。电气图可分为系统图、电路图、功能图、逻辑图、功能表图和等效电路图。系统图或框图概略表示系统或分系统的基本组成、相互关系及其主要特征；电路图详细表示电路、设备或成套装置的全部组成和连接关系；功能图表示理论的或理想的电路而不涉及实现方法；逻辑图主要用二进制逻辑单元图形符号绘制；功能表图表示控制系统的作用和状态；等效电路图表示理论的或理想的元件及其连接关系。这些不同类型的电气图在电气系统设计、分析和维护中都起着重要作用。electric circuit into one printed page, and to provide such a comprehensive study of the world of electronics in general, that anyone from the proverbial "garage tinkerer" to the professional engineer can come to rely on this book as an information resource. The symbols of these electronic systems are rooted in the fuse. A fuse is used to protect electronic circuits from overcurrent and to shut down a circuit when it experiences a voltage spike. A common symbol of a fuse on a circuit diagram is a simple rectangle that has a line cutting it in half. When a fuse blows, it can be replaced with a new one which is a good thing to remember as they can often be hard to find. Voltage is the difference in potential energy between two points in a circuit. The amount of potential energy is measured in volts and can produce electrical current when a circuit is closed. From a visual standpoint, the symbol used to denote voltage is one capital 'V' with a horizontal line drawn through its center. In conclusion, an electric circuit is a pathway that allows for electricity to flow from a source to a load. The purpose of electronic circuits is to create components that manipulate energy. By understanding the symbols and descriptions used in circuit diagrams, you can better troubleshoot and repair electronics. Overall, the world of electronic circuits is vast and varied. This guide and overview has hopefully given you a better understanding of the symbols and functions each circuit component serves. By being able to read and understand these diagrams, you are empowered to explore the inner workings of electrical devices and truly appreciate the marvels that electricity provides.