A.主電網(wǎng),應(yīng)急電網(wǎng),強(qiáng)電電網(wǎng),弱電電網(wǎng)
B.主電網(wǎng),動(dòng)力電網(wǎng),照明電網(wǎng),弱電電網(wǎng)
C.動(dòng)力電網(wǎng),照明電網(wǎng),應(yīng)急電網(wǎng),小應(yīng)急電網(wǎng),弱電電網(wǎng)
D.照明電網(wǎng),應(yīng)急電網(wǎng),小應(yīng)急電網(wǎng),弱電電網(wǎng)