【Joint Study*】【Electrical Version 20160229】
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Participation reward: 2 Wealth. Reward for correct answer: 9 wealth. The regulations for the grounding system of electrical installations are ( ). A. The grounding devices should be interconnected to form a grounding grid. Adjacent buildings that are no more than 30m apart should also be connected. B. The grounding wires of the valve-type arresters installed on each overhead line leading to the distribution equipment room should be connected to the grounding system of that room; there is no need to install a separate centralized grounding system. C. When electrical devices such as distribution transformers are installed in the distribution equipment room located within the building they supply power to, their grounding systems should be connected to the rebar in the building’s foundation. D. For electrical devices such as outdoor pole-mounted distribution transformers, it is advisable to arrange the grounding system in a closed loop around the transformer
CD~~~~~~~~~~~~~
C. When electrical devices such as distribution transformers are installed in a distribution panel room within the building they supply power to, their grounding systems should be connected to the building’s foundation rebar and similar elements
The regulations for the grounding system of electrical installations are (A). A. The grounding devices should be interconnected to form a grounding grid. Adjacent buildings that are no more than 30m apart should also be connected. B. The grounding wires of the valve-type arresters installed on each overhead line leading to the distribution equipment room should be connected to the grounding system of that room; there is no need to install a separate centralized grounding system. C. When electrical devices such as distribution transformers are installed in the distribution equipment room located within the building they supply power to, their grounding systems should be connected to the rebar in the building’s foundation. D. For electrical devices such as outdoor pole-mounted distribution transformers, it is advisable to arrange the grounding system in a closed loop around the transformer
I don’t understand electricity; it seems like everything is correct. I’ll choose C
The regulations for the grounding system of electrical installations are (C D). A. The grounding devices should be interconnected to form a grounding grid. Adjacent buildings that are no more than 30m apart should also be connected. B. The grounding wires of the valve-type arresters installed on each overhead line leading to the distribution equipment room should be connected to the grounding system of that room; there is no need to install a separate centralized grounding system. C. When electrical devices such as distribution transformers are installed in the distribution equipment room located within the building they supply power to, their grounding systems should be connected to the rebar in the building’s foundation. D. For electrical devices such as outdoor pole-mounted distribution transformers, it is advisable to arrange the grounding system in a closed loop around the transformer
C. For electrical devices such as distribution transformers, when installed in a distribution panel room within the building they supply power to, their grounding systems should be connected to the rebar in the building’s foundation. D. The grounding systems of outdoor pole-mounted distribution transformers and other such electrical devices should preferably be arranged in a closed loop around the transformer
The regulations for the grounding system of electrical installations are (C D). A. The grounding devices should be interconnected to form a grounding grid. Adjacent buildings that are no more than 30m apart should also be connected. B. The grounding wires of the valve-type arresters installed on each overhead line leading to the distribution equipment room should be connected to the grounding system of that room; there is no need to install a separate centralized grounding system. C. When electrical devices such as distribution transformers are installed in the distribution equipment room located within the building they supply power to, their grounding systems should be connected to the rebar in the building’s foundation. D. For electrical devices such as outdoor pole-mounted distribution transformers, it is advisable to arrange the grounding system in a closed loop around the transformer