2, low-voltage electrical equipment, understand the key of electrical equipment.

3, electrical components and circuits, familiar with the components and circuits, as well as the cognition of electrical drawings.

4, practical experience, for the verification of the above content.

In fact, the most commonly used and affordable electrician is strong electricity. Weak current electrician needs too much theoretical knowledge, and weak current is mostly integrated, so it is generally not easy to go wrong. Even if there is a problem, the integrated circuit is not easy to repair. Still strong electricity.

Strong current must first understand the working principle and usage of some commonly used switches, fuses, contactors, relays, time relays, thermal relays, etc. And learn how to choose these things according to the line requirements after becoming a master.

6, understand the principle of the motor and simple control, here to learn more about the types and selection of motor. Understand the positive and negative rotation of the motor and the positive and negative rotation control circuit, and then gradually deepen, such as the positive and negative rotation control circuit of the motor, automatic cycle control circuit, multi-control circuit of one machine, star angle step-down start circuit of the motor, and braking circuit of the motor (multiple braking methods).

Extended data:

We should know that people (jobs) engaged in industrial production systems such as power production, electrical manufacturing, electrical maintenance, construction and installation industries are usually called electrical engineers.

Electrotechnics, a discipline, mainly studies strong electricity related to electronics. The training method combining theory with practice will be adopted; Strengthen theoretical knowledge, attach importance to practical training, and combine lessons. Power system operation knowledge, electrical safety technology and operating rules, practical operation, etc.