【正文】 Σ(PL)/C△U = () = 選擇BV31+26，空氣明敷時(shí)其安全載流量為19A。iii)選擇電氣設(shè)備選擇開(kāi)關(guān)箱內(nèi)開(kāi)關(guān)為DZ1563/3，其脫扣器整定電流值為Ir = 49A。漏電保護(hù)器為ZBM163/10。(6)平板振動(dòng)器開(kāi)關(guān)箱至平板振動(dòng)器導(dǎo)線截面及開(kāi)關(guān)箱內(nèi)電氣設(shè)備選擇i)計(jì)算電流Kx 取 ，Cosφ = Ijs = KxPe/(UeCosφ) = () = ii)選擇導(dǎo)線按允許電壓降：S = KxΣ(PL)/C△U = () = 選擇BV31+26，空氣明敷時(shí)其安全載流量為19A。iii)選擇電氣設(shè)備選擇開(kāi)關(guān)箱內(nèi)開(kāi)關(guān)為DZ520/3，其脫扣器整定電流值為Ir = 16A。漏電保護(hù)器為ZBM163/10。(4)潛水泵開(kāi)關(guān)箱至潛水泵導(dǎo)線截面及開(kāi)關(guān)箱內(nèi)電氣設(shè)備選擇i)計(jì)算電流Kx 取 ，Cosφ = Ijs = KxPe/(UeCosφ) = () = ii)選擇導(dǎo)線按允許電壓降：S = KxΣ(PL)/C△U = () = 選擇BV31+26，空氣明敷時(shí)其安全載流量為19A。iii)選擇電氣設(shè)備選擇開(kāi)關(guān)箱內(nèi)開(kāi)關(guān)為DZ1563/3，其脫扣器整定電流值為Ir = 49A。漏電保護(hù)器為ZBM163/10。(2)圓盤鋸開(kāi)關(guān)箱至圓盤鋸導(dǎo)線截面及開(kāi)關(guān)箱內(nèi)電氣設(shè)備選擇i)計(jì)算電流Kx 取 ，Cosφ = Ijs = KxPe/(UeCosφ) = () = ii)選擇導(dǎo)線按允許電壓降：S = KxΣ(PL)/C△U = () = 選擇BV31+26，空氣明敷時(shí)其安全載流量為19A。iii)選擇電氣設(shè)備選擇開(kāi)關(guān)箱內(nèi)開(kāi)關(guān)為DZ10250/3，其脫扣器整定電流值為Ir = 200A。 第四路到生活區(qū)分箱。 第二路到79樓分箱，供79樓塔吊，電梯、辦公用電。 導(dǎo)線分路說(shuō)明 施工生產(chǎn)臨時(shí)供電：在配電間分成獨(dú)立的4路支路。(2)選擇總進(jìn)線開(kāi)關(guān)：DZ10600/3，其脫扣器整定電流值為Ir = 480A。(4)按照《JGJ462005》規(guī)定制定施工組織設(shè)計(jì)，接地電阻R≤4Ω。(2)現(xiàn)場(chǎng)采用380V低壓供電，設(shè)一配電總箱，內(nèi)有計(jì)量設(shè)備，采用TNS系統(tǒng)供電。本工程由無(wú)錫市城歸設(shè)計(jì)院有限公司設(shè)計(jì)，南通瑞達(dá)建設(shè)監(jiān)理有限公司，上海綠地建筑工程有限公司承建。本工程抗震設(shè)防類別為丙類，抗震設(shè)防烈度為6度。其中三期總建筑面積為68343㎡，㎡，㎡。施工現(xiàn)場(chǎng)臨時(shí)用電設(shè)計(jì) 編制依據(jù) （1）《低壓配電設(shè)計(jì)規(guī)范》GB500542011 （2）《建筑工程施工現(xiàn)場(chǎng)供電安全規(guī)范》GB501941993 （3）《通用用電設(shè)備配電設(shè)計(jì)規(guī)范》GB500552011 （4）《供配電系統(tǒng)設(shè)計(jì)規(guī)范》GB500522009（5）《施工現(xiàn)場(chǎng)臨時(shí)用電安全技術(shù)規(guī)范》JGJ462005施工條件 工程概況本工程位于無(wú)錫市錫山區(qū)新春東路交江海東路南東側(cè)。本工程項(xiàng)目由3棟框架剪力墻結(jié)構(gòu)的33層高層和一個(gè)大地下車庫(kù)由人防和非人防組成。本工程建筑設(shè)計(jì)使用年限：三類、50年。本工程高層建筑防火類別為二類，建筑耐火等級(jí)：地下室為一級(jí)，其余為二級(jí)。 施工現(xiàn)場(chǎng)用電量統(tǒng)計(jì)表序號(hào)設(shè)備名稱銘牌功率(kW)安裝功率(kW)數(shù)量合計(jì)功率(kW)1塔式起重機(jī)_QTZ6312圓盤鋸23高壓水泵24潛水泵35插入式振動(dòng)器ZX7016平板振動(dòng)器17雙籠電梯200*20048樓面照明39鋼筋切斷機(jī)210鋼筋彎曲機(jī)WJ40211鋼筋調(diào)直切斷機(jī)_TQ414212交流電焊機(jī) 5kVA521013自落式混凝土攪拌機(jī)_JD150314塔式起重機(jī)_QTZ63115插入式振動(dòng)器_ZX70116平板振動(dòng)器217辦公照明118塔式起重機(jī)_QTZ80119高壓泵120插入式振動(dòng)器ZX70121生活區(qū)用電122合計(jì)設(shè)計(jì)內(nèi)容和步驟、現(xiàn)場(chǎng)勘探及初步設(shè)計(jì)(1)本工程所在施工現(xiàn)場(chǎng)范圍內(nèi)無(wú)各種埋地管線。(3) 根據(jù)施工現(xiàn)場(chǎng)用電設(shè)備布置情況，采用導(dǎo)線穿鋼管埋地敷設(shè)，布置位置及線路走向參見(jiàn)臨時(shí)配電系統(tǒng)圖及現(xiàn)場(chǎng)平面圖，采用三級(jí)配電，兩級(jí)防護(hù)。 確定用電負(fù)荷(1)塔式起重機(jī)_QTZ63組Kx = ，Cosφ = ，tgφ = 將Jc = 40%統(tǒng)一換算到Jc = 25%的額定容量Pe = n(Jc/Jc1)1/2Pn = 1()1/2 = Pjs = KxPe = = Qjs = Pjstgφ = = (2)圓盤鋸組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (3)高壓水泵組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (4)潛水泵組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (5)插入式振動(dòng)器ZX70組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (6)平板振動(dòng)器組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (7)雙籠電梯200*200組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (8)樓面照明組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (9)鋼筋切斷機(jī)組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (10)鋼筋彎曲機(jī)WJ40組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (11)鋼筋調(diào)直切斷機(jī)_TQ414組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (12)交流電焊機(jī) 組Kx = ，Cosφ = ，tgφ = 將Jc = 40%統(tǒng)一換算到Jc = 100%的額定容量Pe = n(Jc/Jc1)1/2Pn = 2(4/)1/2 = Pjs = KxPe = = Qjs = Pjstgφ = = (13)自落式混凝土攪拌機(jī)_JD150組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (14)塔式起重機(jī)_QTZ63組Kx = ，Cosφ = ，tgφ = 將Jc = 40%統(tǒng)一換算到Jc = 25%的額定容量Pe = n(Jc/Jc1)1/2Pn = 1()1/2 = Pjs = KxPe = = Qjs = Pjstgφ = = (15)高壓水泵組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (16)潛水泵組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (17)插入式振動(dòng)器_ZX70組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (18)平板振動(dòng)器組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (19)雙籠電梯組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (20)樓面照明組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (21)辦公照明組Kx = ，Cosφ = ，tgφ = 0Pjs = KxPe = = Qjs = Pjstgφ = 0 = (22)塔式起重機(jī)_QTZ80組Kx = ，Cosφ = ，tgφ = 將Jc = 40%統(tǒng)一換算到Jc = 25%的額定容量Pe = n(Jc/Jc1)1/2Pn = 1()1/2 = Pjs = KxPe = = Qjs = Pjstgφ = = (23)雙籠電梯SC200*200組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (24)潛水泵組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (25)高壓泵組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (26)平板振動(dòng)器組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (27)插入式振動(dòng)器ZX70組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (28)樓面照明組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (29)生活區(qū)用電組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (30)總的計(jì)算負(fù)荷計(jì)算，干線同期系數(shù)取 Kx = 總的有功功率Pjs=KxΣPjs= (++++++++++++++++++++++++++++) = 總的無(wú)功功率Qjs=KxΣQjs= (++++++++++++++++++++++++++++) = 總的視在功率Sjs = (Pjs2+Qjs2)1/2 = (+)1/2 = 總的計(jì)算電流計(jì)算Ijs = Sjs/(Ue) = () = 、選擇總箱的進(jìn)線截面及進(jìn)線開(kāi)關(guān)(1)選擇導(dǎo)線截面： 1) 按安全載流量： 上面已經(jīng)計(jì)算出總計(jì)算電流Ijs = 2) 按允許電壓降： S = KxΣ(PL)/C△U = () = 3) 根據(jù)前面兩條： 電纜線空氣明敷，銅芯聚氯乙烯(鎧裝)絕緣電纜線YJV3185+295，其安全載流量為424A，截面面積185mm2，能夠滿足使用要求。(3)選擇總箱中漏電保護(hù)器：ZBM1630/500。 第一路到78樓分箱，供78樓塔吊、攪拌區(qū)用電、木工機(jī)械、鋼筋加工機(jī)械、電梯。 第三路到80樓分箱，供80的塔吊、電梯。 .1 78樓干線路上導(dǎo)線截面及分配箱、開(kāi)關(guān)箱內(nèi)電氣設(shè)備選擇(分1~分4)(1)塔式起重機(jī)_QTZ63開(kāi)關(guān)箱至塔式起重機(jī)_QTZ63導(dǎo)線截面及開(kāi)關(guān)箱內(nèi)電氣設(shè)備選擇i)計(jì)算電流Kx 取 ，Cosφ = Ijs = KxPe/(UeCosφ) = () = ii)選擇導(dǎo)線按允許電壓降：S = KxΣ(PL)/C△U = () = 選擇BV316+26，空氣明敷時(shí)其安全載流量為105A。漏電保護(hù)器為DZ10L100/3。iii)選擇電氣設(shè)備選擇開(kāi)關(guān)箱內(nèi)開(kāi)關(guān)為DZ520/3，其脫扣器整定電流值為Ir = 16A。(3)高壓水泵開(kāi)關(guān)箱至高壓水泵導(dǎo)線截面及開(kāi)關(guān)箱內(nèi)電氣設(shè)備選擇i)計(jì)算電流Kx 取 ，Cosφ = Ijs = KxPe/(UeCosφ) = () = ii)選擇導(dǎo)線按允許電壓降：S = KxΣ(PL)/C△U = () = 選擇BV56，空氣明敷時(shí)其安全載流量為55A。漏電保護(hù)器為ZBM1100/50。iii)選擇電氣設(shè)備選擇開(kāi)關(guān)箱內(nèi)開(kāi)關(guān)為DZ520/3，其脫扣器整定電流值為Ir = 16A。(5)插入式振動(dòng)器ZX70開(kāi)關(guān)箱至插入式振動(dòng)器ZX70導(dǎo)線截面及開(kāi)關(guān)箱內(nèi)電氣設(shè)備選擇i)計(jì)算電流Kx 取 ，Cosφ = Ijs = KxPe/(UeCosφ) = () = ii)選擇導(dǎo)線按允許電壓降：S = KxΣ(PL)/C△U = () = 選擇BV31+26，空