Electrician's operation certificate is an examination organized by the local safety supervision bureau, which is necessary for electricians to take up their posts. Generally, they go to vocational schools to register for exams. If training is needed, the price may be more expensive. Generally, it takes 1 month and a half to register for the exam. The form of electric examination has two parts: theory and practice. The theoretical part can be searched quickly through "excellent topic treasure". Finally, I wish you good luck in the exam.