[KongchangAI]
Unverified85% confidenceDecision RuleTime unknown

选购配电箱应保留至少30%的模数余量:18位配电箱实际只装12-13位断路器,因为1P断路器占1模数、2P占2模数、带漏电的DPN型占2模数,加上进线总开关和母排空间,标称位数会被快速占满

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