[KongchangAI]
Unverified86% confidenceSolutionTime unknown

隐蔽工程/墙内穿线的标准方案:PVC线管(阻燃冷弯管)内穿线→线管每隔约1米用管卡固定→拐角用弯管避免死折→分线处用接线盒,禁止直接埋线不穿管

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86%
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