【Daily Topic】【Electrical Edition 20170112】
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This post was last edited by yuchenchf on 2017-1-18 at 12:42. Reward for participation: 2 Wealth. **Correct reward: 9 Wealth. The regulations regarding the grounding systems of electrical installations are as follows: A. The grounding systems should be connected to each other to form a grounding network; adjacent buildings within 30 meters of each other should also be connected. B. The grounding wires of the valve-type surge arresters installed on each overhead line that leads into the distribution panel room should be connected to the grounding system of that panel room; there is no need to install a separate centralized grounding system. C. For electrical installations such as distribution transformers, when they are installed in the distribution panel rooms located within the buildings they supply power to, their grounding systems should be connected to the rebar in the building’s foundation. D. For electrical installations such as outdoor pole-mounted distribution transformers, it is advisable to arrange the grounding systems in a closed loop around the transformer. CD
The regulations regarding the grounding systems of electrical installations are as follows (CD). A. The grounding systems should be interconnected to form a grounding grid; adjacent buildings within 30 meters of each other should also be connected. B. The grounding wires of the valve-type surge arresters installed on each overhead line that leads into the distribution panel room should be connected to the grounding system of that panel room; there is no need to install a separate centralized grounding system. C. For electrical installations such as distribution transformers, when they are installed in the distribution panel 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 installations such as outdoor pole-mounted distribution transformers, it is advisable to arrange the grounding system in a closed loop around the transformer
The regulations regarding the grounding systems of electrical installations are as follows (CD). A. The grounding systems should be interconnected to form a grounding network; adjacent buildings within 30 meters of each other should also be connected. B. The grounding wires of the valve-type arresters installed on each overhead line that leads into the distribution panel room should be connected to the grounding system of that panel room; there is no need to install a separate centralized grounding system. C. When electrical installations such as distribution transformers are installed in the distribution panel rooms located within the buildings they supply power to, their grounding systems should be connected to the rebar in the building’s foundation. D. For electrical installations such as outdoor pole-mounted distribution transformers, it is advisable to arrange the grounding system in a closed loop around the transformer
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