July, 2018 issue

　A special feature of "the Q&A of the thunder protection systems construction" is made in this magazine November, 2016 issue. I collected the matters which the person in charge was usually troubled with and arranged the article as "a question" and it got "the answer" by the expert of the thunder protection and gathered it up. I collected matters to be usually troubled with and, in "the knowledge and the FAQ of the grounding of this special feature," gathered it up by "a question" and "an answer".
　　The grounding is an electric circuit connecting with the earth, and it is in the route where the ground electric current flows in. There are usually 0 (zero) units, and that is why I am used for securing of stability of the circuit voltage, and stability of the operation such as apparatuses is kept and should minimize the risk to the human body, but may not keep soundness you do what kind of connection (shape) on what kind of earth (the earth specific resistance) at this time, or what kind of state (separation distance) you connect it in.
In addition, I think that I become a cause to be able to trouble a designer and a builder in thinking about soundness because a combination of grounding construction includes various cases.
I want to have you understand this cause to be able to trouble it through FAQ by this special feature. In addition, I kept a commentary as a minimum as constitution and collected the FAQ about various matters and I had various reply and made it.