Electricians are divided into maintenance electricians, duty electricians and construction electricians. With different job categories, you need different professional skills, but as long as you are a professional electrician, you need to have the following basic skills.
The first is to understand the basic knowledge of electricians, which mainly refers to the common sense of electricity safety. After all, frequent contact with electricity by electricians is a high-risk occupation.
Second, professional skills, including line installation, installation and maintenance of common low-voltage electrical appliances and power distribution devices, installation and maintenance of basic motor control lines, common knowledge of electronic circuits and so on.
If you are only a sideline electrician, you only need to deal with some temporary glitches occasionally, and the professional requirements will be simpler. You can use the test pen correctly, measure the voltage, current and resistance with a multimeter, change the light bulb yourself and connect the wires simply.
In a word, heaven rewards diligence, and some technical activities seem simple, but it is not a day's work to really master these things. If you want to achieve promotion and salary increase as soon as possible, the more knowledge you learn, the better.