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Все вопросы
- How is attaching the grounding conductors to the grounding and earthing designs? #141
- What remedies are among the main electric insulating means for electrical installations up to 1000 V? #142
- Who should provide reliability and safety of operation of electrical installations? #143
- What alphabetic and colour designation must have conductors protective earthing in electrical installations? #144
- How many people should be in Commission for the verification of knowledge of the electrotechnical personnel? #145
- Who conducts the initial briefing sent to staff during the work in electroinstallations to 1000 In? #146
- Which group of electrical safety must have a allow to work in electrical installations? #147
- In which case, the motor must be immediately disconnected from the mains? #148
- What should a worker who has noticed faulty electrical installations or means of protection? #149
- What alphabetic and colour designations should have tyres at DC? #150