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Все вопросы
- What remedies are among the main electric insulating means for electrical installation with voltage above 1000 V? #111
- What are the signs of the following apply to banning? #112
- Which group of electrical safety should be responsible for the electrical equipment in electrical installations up to 1000 V? #113
- Who determines the category of the consumers on the reliability of power supply? #114
- What alphabetic and colour designation must have conductors protective earthing in electrical installations? #115
- What is the minimum work experience must be a person with higher electro-technical education to move from the third group of electrical safety on the fourth? #116
- When is the next test of knowledge of administrative and technical staff not involved in issuing orders and instructions? #117
- What combination of duties is allowed the responsible head of works? #118
- What works for disposal in the electrical voltage over 1000 V can hold a single worker, having a third group of electrical safety? #119
- Who should carry out replacement and routine calibration of electric meters? #120