#774396
In what electroinstallations it is possible to use control lamps as voltage indicators?
Варианты ответа:
- In the electrical voltage not exceeding 380 V
- In the electrical voltage not exceeding 220 V
- In the electrical voltage not exceeding 1000 V
- the Use of warning lights is prohibited
Курсы в категории:
Безопасность и правопорядок