What are the classifications of electrical work?

1, industrial and mining enterprises 1, maintenance electrician, extension line, external line, on duty, dispatching 2, construction industry 1, electrician extension line, (communication with strong current and weak current package, broadcasting, fire fighting), instrument 2, external line, high voltage and low voltage 3, thermal power plant 1. Substation operation and maintenance 1, high-voltage line live maintenance worker 2, transmission line maintenance worker 3, distribution line operation worker 4, power cable operation worker 5, indoor line installation worker 6, substation attendant 7, camera attendant 8, transformer maintenance worker 9, substation maintenance worker 1 1. Electrician's Home/KOOC-0/3, Relay Protector/KOOC-0/4, Electric Meter Installer/KOOC-0/5, Electric Measuring Instrument Worker/KOOC-0/6, Electricity Inspector/KOOC-0/7, Meter Reading and Accounting Charger/KOOC-0/8, Electric Meter Reviser/KOOC- Auxiliary power installer 4, cable installer 6, power transmission and transformation project construction 1, transmission line installer 2, primary substation installer 3, secondary substation installer 7, hydropower plant 1, turbine generator attendant 8, others 1, dispatcher 2, electrician 3, maintenance electrician Note: Some types of work are common to each other.