“电工技术”是一个常用的名词,严格说来它的内容是非常广泛的。凡以应用电磁现象为主的技术科学,都可以称为电工技术。它包括了电磁形式的能量和信息的产生、传送、量测、控制、使用、设备制造、事业规划等多方面的内容。对于这些内容由于工作需要曾按照技术目的属于能量或者信息,将电工分为强电和弱电两大类,或者按照工业组织分为制造和运行两大类。但是这样的划分并不完全确切,而且后来各种科学的互相渗透日益加强,这样的划分就更难说明问题了。随着生产和科学的发展,电工技术的一些分支学科逐步形成,已经独立出去。例如无线电技术早期属于电工中的弱电类,后来就逐渐自成学科了。随后计算机技术、自动化 “Electrotechnical” is a commonly used term, strictly speaking, its content is very broad. Any application of electromagnetic phenomena dominated by the technical sciences, can be called electrical engineering. It includes the electromagnetic form of energy and information generation, transmission, measurement, control, use, equipment manufacturing, business planning and other aspects. For these contents, because the work needs have been classified as energy or information according to technical purposes, the electrician can be divided into two categories, that is, the strong electric and the weak electric. Or, the electrician can be divided into two categories according to the industrial organization for manufacturing and operation. However, such a division is not entirely accurate, and the subsequent mutual penetration of various sciences is increasingly strengthened. Such a division is even more difficult to explain. With the development of production and science, some branch disciplines of electrician technology have been gradually formed and have been independently developed. For example, early radio belongs to the weak category of electricians, and later gradually became a subject. Then computer technology, automation