1. Electrician's online job certificate (original): this certificate is issued by SERC (former power supply bureau); Divided into low pressure, high pressure and special; Generally test high voltage (because high voltage electrician can do the work of low voltage electrician, that is, high voltage includes low voltage); Training 10 day, the examination is divided into theory and practice; Cost: 950 yuan. The electrician certificate is valid for three years; The second interview only takes the theory test (mobile phone test), and the cost is 260 yuan.

2. Electrician special operation qualification certificate (certificate): issued by the Safety Supervision Bureau; Installation, maintenance, etc.; Training for 5 days, the examination is divided into theory and practice; Cost: 580 yuan. The electrician certificate is valid for three years; The second interview only takes the theory test (computer test), and the cost is 280 yuan.

3. Grade certificates issued by the labor department: divided into primary, intermediate, advanced, technician and senior technician. Valid for life.