Beginners of electrical engineering must start with the basic knowledge of electrical engineering. You can buy a professional book on electrical engineering first. You can also watch some university electrotechnics teaching videos online. The basic theory is very important, and all kinds of electrical control theories should be understood clearly.

The most important thing is practice, guided by theory, and more hands-on. The premise is that you must have a strong interest in electricity, so that you can make rapid progress. At present, electrical automation develops rapidly, and equipment is eliminated and updated quickly. The skills you master today may not be used tomorrow, so you should keep learning. Have a good English foundation, otherwise it will be very inconvenient to contact imported equipment for maintenance in the future.

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Pay attention to remember the basics:

The basic concept and law of 1. circuit and the analysis of DC resistance circuit.

2, understand the laws and regulations of production safety; Prevent accidents and cause unnecessary casualties.

3. Current knowledge. The harmfulness of current is also considerable, and accidents will happen if you are not careful.

4, electrical fire, explosion-proof, lightning protection, anti-static.

5. Lighting equipment and installation.

6. Installation of electric wires.

7, understand the high voltage electrical equipment.

8. Safe operation of power transformers, transformers, distribution stations and power supply systems.

9. Low voltage electrical equipment, power capacitors, motors and hand-held power tools.

10, look at the circuit diagram or something.