 |
| protective: 32 phrases in 6 subjects |
| Cables and cable production | 1 |
| Electric machinery | 19 |
| Electronics | 5 |
| Isolation | 5 |
| Lighting other than cinema | 1 |
| Power lines | 1 |
|
| protective: 32 phrases in 6 subjects |
| Cables and cable production | 1 |
| Electric machinery | 19 |
| Electronics | 5 |
| Isolation | 5 |
| Lighting other than cinema | 1 |
| Power lines | 1 |