전기기사 천정 매입 전기공사와 노출배선전기공사방법 비교(노출전기공사시 Cd관은 난연성이나 불연성은 사용금지이고 금속제가요전선관 사용)
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![[전기실무실습] CD관, 후렉시블 전선관 자르는 법](https://i.ytimg.com/vi/6Ws3MhLj98o/hq720_2.jpg?sqp=-oaymwE2CNAFEJQDSFXyq4qpAygIARUAAIhCGABwAcABBvABAfgBtgiAAoAPigIMCAAQARhlIE0oOzAP&rs=AOn4CLC0NRJyvvUkp03cfblTrp8IiaphzQ)
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