A.燈具允許電流,燈端允許電壓值 B.負(fù)荷計算電流,燈具額定電壓 C.燈具允許電流,燈具額定電壓 D.負(fù)荷計算電流,燈端允許電壓值
A.IP1x B.IP2X C.IP3X D.1P4X
A.86% B.33% C.25% D.6%