A.UPS電源 B.逆變裝置 C.斷路器跳閘 D.應(yīng)急照明
A.0.4 B.0.8 C.0.3~0.4 D.1.5~2.0
A.0.1~0.3 B.0.2~0.5 C.0.4~0.7 D.0.6~0.8