臨時(shí)用電施工組織方案[1]-展示頁
2025-05-12 03:13本頁面
【正文】 r(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)場配備2組1000A的一級配電柜，能夠滿足使用要求。現(xiàn)場臨時(shí)用電布線采用TN—S接零系統(tǒng)，實(shí)行三級配電，二級漏電保護(hù)?，F(xiàn)場采用220/380V低壓供電，臨時(shí)配電室內(nèi)的總配電柜配電壓表、電流表、電能表等計(jì)量設(shè)備，采用TNS系統(tǒng)供電。電源進(jìn)線、變電所、配電裝置、用電設(shè)備位置及走向根據(jù)建設(shè)單位所提供的電源情況以及項(xiàng)目部總的施工部署與施工進(jìn)度安排要求，為滿足各施工段施工生產(chǎn)的需要，在場地東側(cè)馬橋河路廂變旁設(shè)一個(gè)配電室，配電室設(shè)置兩個(gè)配電柜，向施工場區(qū)內(nèi)的各塔吊，作業(yè)層，鋼筋加工棚，木工棚、生活區(qū)、辦公區(qū)等用電設(shè)備及區(qū)域供電?，F(xiàn)場電源從甲方指定的廂變接出，甲供電源采用TN系統(tǒng)。 專業(yè)資料整理分享
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