With the development in IT and home electrification in recent years,house is becoming more automated and intelligent. The philosophy that home aim for is to implement advanced improvements in environmental and safety performance. Especially in this modern age where a wide variety of ellctronics devices and equipments are mow being installed in homes,it is necessary for earthing installations to have high reliabity in order to carry out this philosophy over the long term. This paper discusses the issues concerning the earthing electrode named arrow type earthing electrode. And in this paper,authors propose the earthing installations for the individual wooden house.
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