What kind of electrician certificate is the electrician maintenance in the hotel?

The electrician maintenance in the hotel is a low-voltage electrician operation certificate. It usually takes about 20 to 30 days to get the electrician's operation certificate after passing the electrician's operation certificate examination. Inquiries about electrician's operation certificate and electrician's special operation certificate can be found on the websites of municipal and state safety supervision and production administrations. Electrician's operation certificate is universal in China.