臨時(shí)用電施工組織方案[1](存儲(chǔ)版)
【正文】 (3)、鋼筋彎曲機(jī)Kx = Cosφ = tgφ = Pjs = 18 = kWQjs = Pjs tgφ= = kvar(4)、鋼筋調(diào)直機(jī)Kx = Cosφ = tgφ = Pjs = 11 = kWQjs = Pjs tgφ= = kvar(5)、鋼筋切斷機(jī)Kx = Cosφ = tgφ = Pjs = 22 = kWQjs = Pjs tgφ= = kvar(6)、直流電焊機(jī)Kx = Cosφ = tgφ = 將Jc =50%統(tǒng)一換算到Jc1 =100%的額定容量Pn = 30kWPe = n(Jc/Jc1)1/2Pn = 1()1/230 = kWPjs = KxPe = = Qjs = Pjs tgφ= = kvar(7)、建筑施工外用電梯Kx = Cosφ = tgφ = Pjs = 55 = kWQjs = Pjs tgφ= = kvar(8)、交流電焊機(jī)Kx = Cosφ = tgφ = 將Jc =50%統(tǒng)一換算到Jc1 =100%的額定容量Pn = Sn Cosφ = =Pe = n(Jc/Jc1)1/2Pn = 1()1/2 = kWPjs = KxPe = = Qjs = Pjs tgφ= = kvar(9)、自落式混凝土攪拌機(jī)Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(10)、插入式振動(dòng)器Kx = Cosφ = tgφ = Pjs = 22 = kWQjs = Pjs tgφ= = kvar（11）空調(diào)Kx = Cosφ = tgφ = Pjs = 75 = kWQjs = Pjs tgφ= = kvar(12)、鏑燈Kx = Cosφ = tgφ = Pjs = 45 = kWQjs = Pjs tgφ= = 39 kvar(13)總的計(jì)算負(fù)荷計(jì)算，總箱同期系數(shù)取 Kx = 總的有功功率：Pjs = KxΣPjs =(+54++++++++++) = 總的無功功率Qjs = KxΣQjs =(++++++++++++39) = kvar總的視在功率Sjs = ( Pjs2+Qjs2 )1/2 = (+)1/2 = KVA現(xiàn)場(chǎng)甲方提供的變壓器容量為800KVA KVA，能夠滿足使用要求總的計(jì)算電流計(jì)算Ijs = Sjs/(Ue) = () = A現(xiàn)場(chǎng)配備2組1000A的一級(jí)配電柜，能夠滿足使用要求。c、三棒式垂直接地體的電阻計(jì)算：∵單根垂直式：K≈ R＝100＝30Ω接地根數(shù)為3根，接地體利用系數(shù)η＝∴30247。避雷裝置要求：防雷接地體與重復(fù)接地合用，阻值不大于10Ω。5）各種電氣應(yīng)安裝在絕緣電器安裝板上，電器及熔斷熔絲規(guī)格必須與電流量一致。五、安全用電技術(shù)措施：1）、開關(guān)箱安裝位置，設(shè)在設(shè)備操作控制箱3m以內(nèi)的地方。
公司管理相關(guān)推薦
鄂ICP備17016276號(hào)-1