전기실무 - 디지털 멀티 테스터기 사용방법 (하트상, 중성선 찾는 방법 / 접지라인 점검) - 분전함 측정

Using the AC (alternating current) measurement method of the digital multi-tester,
We made a video of how to find the heart, find the middle line, and check the ground line.

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