Unverified80% confidenceTradeoffTime unknown
暗盒越深容纳线缆越多、弯折余量越足,但开槽深度受墙体限制:承重墙/剪力墙禁止开深槽,此时应选浅盒(深度≤50mm)搭配横向走线,兼顾安全与容量
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