There are three types of electrician certificates:
Safety supervision bureau:
1, special operation certificate: operation type: electrician (commonly known as operation certificate and work permit). Classification: high-voltage operation and low-voltage operation.
SERC:
2. Electrician's network access certificate: you can work in the State Grid. Classification: electrician's network access certificate is divided into three categories: low voltage, high voltage and special.
Labor bureau:
3. Professional qualification certificate: occupation: electrician (commonly known as grade certificate), which is divided into five grades: primary (grade 5), intermediate (grade 4), advanced (grade 3), technician (grade 2) and senior technician (1 grade).