621.316
| Field | Ind | Field content |
| leader | -----nam-a22------a-4500 | |
| 1 | kpw4987871 | |
| 3 | CZ-OsVSB | |
| 5 | 20210822034826.3 | |
| 80 | $a 621.316 | |
| 680 | $a Rozvod a regulace elektrické energie. Ochranná zařízení | |
| 1090 | $a 1996/01/26 $b 2000/01/10 $c OSD 002/OPL10 $d OSD 002/HAU50 |