#774274
What can be used as PE conductors in electrical installations up to 1000 V?
Варианты ответа:
  • Steel pipe wiring
  • Lead sheath wire and cable
  • Water pipes in the presence of the insulating inserts
  • sewage Pipes and Central heating
  • Any of these conductors
Тематика: Основы безопасности жизнедеятельности Основы безопасности жизнедеятельности (ОБЖ) Основы электробезопасности
Курсы в категории: Безопасность и правопорядок
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