That's not true. I work in the electric power industry. I was a junior college student at that time. I got a special homework certificate at school. If I have a junior high school education, I have to have several years of work experience.

After 10 days of training, you can still learn something if you want to learn, but the main purpose of this training is to get the certificate quickly. As for your future work, you need more systematic training before you can use these instruments yourself. Moreover, the regulations of the power industry are relatively strict, and they are all operated under supervision.