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Все вопросы
- What is called ground work? #131
- What is the earthing system of the following refers to a system of TN-S? #132
- Within what time must be ensured by the direct contact of the pointer with controlled voltage live parts when checking the absence of voltage in electrical installations up to 1000 V? #133
- What are the signs of these belong to the index? #134
- When, as a rule, are assigned a responsible supervisor? #135
- Who carries out state supervision over compliance with the requirements of the rules and regulations of electrical safety in electrical installations? #136
- During what period conducted a comprehensive testing of the operation of the transmission line prior to commissioning? #137
- What is the frequency of testing for electrical safety are established for staff of the electrical installation? #138
- What the staff refers to elektrotekhnicheskogo? #139
- Who has the right to attach and detach from a network of electric installations? #140