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Все вопросы
- Whether it is possible to use means of protection expired? #41
- Who has to ensure reliability and safety of operation of electroinstallations of consumers? #42
- How it is necessary to move in a zone of "step" tension? #43
- With what frequency it is necessary to perform inspection of the grounding devices with selective soil opening? #44
- What electroreceivers concerning ensuring reliability of power supply belong to electroreceivers of the second category? #45
- How the worker at direct use can define that electroprotective equipment have passed operational tests and are suitable for applications? #46
- What rooms are called dry? #47
- Into what categories the electrotechnical personnel of the organization are subdivided? #48
- What group on electrical safety the responsible head of works at work in electroinstallations up to 1000 V has to have with simple evident scheme? #49
- What electroreceivers belong to electroreceivers of the first category? #50