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Все вопросы
- Who should provide reliability and safety of operation of electrical installations? #221
- What alphabetic and colour designation must have conductors protective earthing in electrical installations? #222
- How many people should be in Commission for the verification of knowledge of the electrotechnical personnel? #223
- Who conducts the initial briefing sent to staff during the work in electroinstallations to 1000 In? #224
- Which group of electrical safety must have a allow to work in electrical installations? #225
- In which case, the motor must be immediately disconnected from the mains? #226
- What should a worker who has noticed faulty electrical installations or means of protection? #227
- What alphabetic and colour designations should have tyres at DC? #228
- Who are the electrotechnological staff? #229
- What is the term given to the attire for the work in electroinstallations? #230