How many issues does Hezhou Zhongshan electrician certificate run every year?

You can do it at any time, and you can't say how many times a year.

The electrician certificate is reviewed once every three years and renewed once every six years (it was reviewed once every two years before). You can apply for a review three months in advance to prevent invalidation. This certificate is also necessary for electricians to work.

Electrician's operation certificate: electrician's special operation certificate, which can be divided into high-voltage electrician and low-voltage electrician. Card form (about ID card size) is issued by local safety supervision bureau, and can be registered in local safety training institutions for textual research.