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でんちゃん@電気工事

これ知らない人は素人

Yellow electrical terminal block with brass screw and inserted blue insulated wire on left side. Right side shows curved copper wire loop with rotation arrow indicating twisting motion. Blue labels in Japanese: top yellow box labeled 端子挿入方法 meaning terminal insertion method, blue box labeled 線を回して固定 meaning twist wire to fix, and lower blue box labeled 単線使用 meaning single wire usage.

12:05 PM · Oct 12, 2025

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