#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