A.當(dāng)電氣裝置或設(shè)備發(fā)生火災(zāi)或引燃附近可燃物時,首先要切斷電源 B.室外高壓線路或桿上配電變壓器起火時,應(yīng)立即打電話與供電部門聯(lián)系拉斷電源 C.室內(nèi)電氣裝置或設(shè)備發(fā)生火災(zāi)時應(yīng)盡快拉掉開關(guān)切斷電源 D.選用不導(dǎo)電的滅火劑進行滅火 E.選用泡沫滅火劑進行滅火
A.操作機構(gòu) B.控制電磁鐵 C.電源模塊 D.繼電保護裝置
A.0.01s,0.005s B.0.01s,0.04s C.0.1s,0.05s D.0.02s,0.004s