접지전극의 깊이에 대한 고찰. 왜 0.75m 일까? | 그 이유를 알아봅시다.
Hello. In electrical engineering, we learned that the grounding electrode must be at least 0.75 meters deep. This time, we'll explore the question, "Why 0.75 meters, not 1 meter or 50 cm?" I hope you always find studying electricity enjoyable. Thank you. From Jeon Byeong-chil.
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