Unverified85% confidenceDecision RuleTime unknown
机械易受损部位（穿墙、过梁、地面走线）用镀锌钢管抗压保护，PVC管抗冲击性弱，重物碾压易破裂损伤线缆
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified已经明显断裂或内部铜芯外露的线缆不建议再用保护弹簧续命，弹簧只能预防不能修复，破损线缆存在短路和发热风险应直接更换76% similarUnverified顶压式（无螺丝）挡板密封性和稳固性弱于打孔式，但拆装无损墙面；追求密封防钻和抗冲击就要牺牲便利性76% similarUnverified免打孔粘贴方案安装快但可逆性与承重不可兼得：承重强的强力胶难拆除会伤墙，可撕胶承重弱易脱落，二者难两全76% similarUnverified遇到重载且墙体开裂敏感（如靠近墙边、瓷砖易崩）的场景，膨胀螺丝的挤压应力会顶裂基材，此时应改用注胶式化学锚栓，靠胶粘力而非膨胀挤压75% similarUnverified天花板/墙壁膨胀螺栓固定必须打入承重结构（现浇混凝土楼板或实心承重墙），空心砖墙、石膏板吊顶、加气块隔墙均无法安全承受悬吊冲击力，需用M10以上化学锚栓75% similar
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