Unverified92% confidenceDecision RuleTime unknown
穿线管内导线总截面积（含绝缘层）不应超过管内径截面积的40%，例如3根2.5平方线需选内径≥16mm的管，4根以上或走强弱电分离时选20mm管，超标会导致散热差和后期无法抽换线
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92%
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Long-term
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Unverified穿线管管径按线缆总截面积不超过管内截面40%选取：2.5mm²线单穿选16管、多根穿选20管；4mm²及以上或3根线以上选25管，便于后期换线85% similarUnverified内槽容线量按预留50%冗余选：单根网线/充电线选内宽10-15mm款；插排延长线或多线并走需内宽≥25mm、内高≥12mm款，塞满会导致盖板拱起反成绊脚点80% similarUnverified宽度越宽施工越快但拐角贴合越差，管道接头等需缠绕的曲面应选窄款（20-50mm）便于拉伸贴合，大面积平面补漏才选宽款（100-150mm）77% similarUnverified螺旋缠绕管标称管径指内径，实际容线量约为内径的60-70%（需留缠绕余量），如需收纳3根1.5mm²电源线建议选内径12-16mm规格77% similarUnverified走线孔位应位于每层背板中部或两侧，孔径≥50mm才能同时穿过HDMI+电源+网线的接头，单一小孔（＜35mm）无法通过带插头的粗线77% similar
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