| Grade | Machinery | Electricity | Fire-fighting |
|---|---|---|---|
| Senior Technician | |||
| Advanced Technician | 1 | 1 | |
| Intermediate Technician | 3 | 3 | 1 |
| Notice Technician | 2 | 1 | 2 |
| Item | Personnel | Remarks |
|---|---|---|
| Uninterruptible | 4 | Korea Electric Association |
| Underground | 3 | Korea Electric Association |
| Overhead | 2 | Korea Electric Association |
| Live wiring | 2 | Korea Electric Association |