【正文】 = 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 = = (25)套絲切管機(jī)_TQ3組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (26)電動(dòng)液壓彎管機(jī)_WYQ組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (27)蛙式夯機(jī)組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (28)蛙式夯機(jī)組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (29)蛙式夯機(jī)組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (30)灰漿攪拌機(jī)_UJ325組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (31)地面磨光機(jī)_DM60組Kx = ，Cosφ = ，tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (32)警衛(wèi)照明(1000W/km)組Kx = ，Cosφ = ，tgφ = 0Pjs = KxPe = = Qjs = Pjstgφ = 0 = (33)混凝土澆筑照明組Kx = ，Cosφ = ，tgφ = 0Pjs = KxPe = = Qjs = Pjstgφ = 0 = (34)車輛人行主干道照明組Kx = ，Cosφ = ，tgφ = 0Pjs = KxPe = = Qjs = Pjstgφ = 0 = (35)磚石工程照明組Kx = ，Cosφ = ，tgφ = 0Pjs = KxPe = = Qjs = Pjstgφ = 0 = (36)設(shè)備堆放照明組Kx = ，Cosφ = ，tgφ = 0Pjs = KxPe = = Qjs = Pjstgφ = 0 = (37)半成品堆放照明組Kx = ，Cosφ = ，tgφ = 0Pjs = KxPe = = Qjs = Pjstgφ = 0 = (38)混凝土澆筑照明組Kx = ，Cosφ = ，tgφ = 0Pjs = KxPe = = Qjs = Pjstgφ = 0 = (39)鋼筋室外加工照明組Kx = ，Cosφ = ，tgφ = 0Pjs = KxPe = = Qjs = Pjstgφ = 0 = (40)鋼筋室外加工照明組Kx = ，Cosφ = ，tgφ = 0Pjs = KxPe = = Qjs = Pjstgφ = 0 = (41)木材加工鋸木照明組Kx = ，Cosφ = ，tgφ = 0Pjs = KxPe = = Qjs = Pjstgφ = 0 = (42)木材加工模板照明組Kx = ，Cosφ = ，tgφ = 0Pjs = KxPe = = Qjs = Pjstgφ = 0 = (43)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) = () = 由于總配線計(jì)算電流小于其干線電流值，所以取干線最大電流值： 選擇變壓器 根據(jù)計(jì)算的總的視在功率選擇SL7315/10型三相電力變壓器，≥(增容系數(shù))能夠滿足使用要求。 選擇總箱的進(jìn)線截面及進(jìn)線開(kāi)關(guān) 總配箱進(jìn)線(1)選擇導(dǎo)線截面： i) 按安全載流量： 上面已經(jīng)計(jì)算出總計(jì)算電流Ijs = ii) 按允許電壓降： S = KxΣ(PL)/C△U = () = iii) 根據(jù)前面兩條： 電纜線空氣明敷，銅芯聚氯乙烯絕緣電纜線VV3240+2120，其安全載流量為407A，截面面積240mm2，能夠滿足使用要求。(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。(3)選擇總箱中漏電保護(hù)器：ZBM1630/400。 干1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 在選擇前應(yīng)對(duì)照平面圖和系統(tǒng)圖先由用電設(shè)備至開(kāi)關(guān)箱計(jì)算，再由開(kāi)關(guān)箱至分配箱計(jì)算，選擇導(dǎo)線及開(kāi)關(guān)設(shè)備。分1至開(kāi)關(guān)箱，開(kāi)關(guān)箱至用電設(shè)備采用銅芯聚氯乙烯絕緣電纜線空氣明敷。分2至開(kāi)關(guān)箱，開(kāi)關(guān)箱至用電設(shè)備采用銅芯聚氯乙烯絕緣電纜線空氣明敷。(1)鋼筋彎曲機(jī)_GW40開(kāi)關(guān)箱至鋼筋彎曲機(jī)_GW40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VV34+2，空氣明敷時(shí)其安全載流量為30A。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RMM163/12。(2)鋼筋彎曲機(jī)_GW40開(kāi)關(guān)箱至鋼筋彎曲機(jī)_GW40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VV34+2，空氣明敷時(shí)其安全載流量為30A。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RMM163/12。(3)直流電焊機(jī)_AX1165(AB165)開(kāi)關(guān)箱至直流電焊機(jī)_AX1165(AB165)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VV34+2，空氣明敷時(shí)其安全載流量為30A。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)直流電焊機(jī)_AX1165(AB165)開(kāi)關(guān)箱至直流電焊機(jī)_AX1165(AB165)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VV34+2，空氣明敷時(shí)其安全載流量為30A。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。(5)交流電焊機(jī)_BX31201開(kāi)關(guān)箱至交流電焊機(jī)_BX31201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VV34+2，空氣明敷時(shí)其安全載流量為30A。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。(6)鋼筋調(diào)直切斷機(jī)_GT4/14開(kāi)關(guān)箱至鋼筋調(diào)直切斷機(jī)_GT4/14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VV34+2，空氣明敷時(shí)其安全載流量為30A。iii)選擇電氣設(shè)備選擇開(kāi)關(guān)箱內(nèi)開(kāi)關(guān)為DZ1540/3，其脫扣器整定電流值為Ir = 32A。漏電保護(hù)器為ZBM1100/16。(7)鋼筋切斷機(jī)開(kāi)關(guān)箱至鋼筋切斷機(jī)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VV34+2，空氣明敷時(shí)其安全載流量為30A。iii)選擇電氣設(shè)備選擇開(kāi)關(guān)箱內(nèi)開(kāi)關(guān)為DZ1540/3，其脫扣器整定電流值為Ir = 32A。漏電保護(hù)器為ZBM1100/25。(8)鋼筋切斷機(jī)開(kāi)關(guān)箱至鋼筋切斷機(jī)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VV34+2，空氣明敷時(shí)其安全載流量為30A。iii)選擇電氣設(shè)備選擇開(kāi)關(guān)箱內(nèi)開(kāi)關(guān)為DZ1540/3，其脫扣器整定電流值為Ir = 32A。漏電保護(hù)器為ZBM1100/25。(9)鋼筋調(diào)直切斷機(jī)_GT6/14開(kāi)關(guān)箱至鋼筋調(diào)直切斷機(jī)_GT6/14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VV310+26，空氣明敷時(shí)其安全載流量為53A。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ZBM1100/50。(10)鋼筋調(diào)直切斷機(jī)_GT6/14開(kāi)關(guān)箱至鋼筋調(diào)直切斷機(jī)_GT6/14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VV310+26，空氣明敷時(shí)其安全載流量為53A。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ZBM1100/50。(11)分1至第1組電機(jī)的開(kāi)關(guān)箱的導(dǎo)線截面及分配箱內(nèi)開(kāi)關(guān)的選擇i)Ijs = ii)選擇導(dǎo)線選擇VV36+24，空氣明敷時(shí)其安全載流量為39A。室外架空銅芯電纜線按機(jī)械強(qiáng)度的最小截面為10mm2，滿足要求。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開(kāi)關(guān)為 DZ1540/3 ，其脫扣器整定電流值為Ir = 32A。(12)分2至第1組電機(jī)的開(kāi)關(guān)箱的導(dǎo)線截面及分配箱內(nèi)開(kāi)關(guān)的選擇i)Ijs = ii)選擇導(dǎo)線選擇VV335+216，空氣明敷時(shí)其安全載流量為115A。室外架空銅芯電纜線按機(jī)械強(qiáng)度的最小截面為10mm2，滿足要求。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開(kāi)關(guān)為 DZ10250/3 ，其脫扣器整定電流值為Ir = 200A。(13)分1進(jìn)線及進(jìn)線開(kāi)關(guān)的選擇i)計(jì)算電流Kx = ，Cosφ = Ijs = KxΣPe/(UeCosφ) = (1+1+1+1+1)/() = 由于計(jì)算電流小于該分配箱下支線電流，所以取最大支線電流值：ii)選擇導(dǎo)線按允許電壓降：S = KxΣ(PL)/C△U = () = 選擇VV34+2，埋地敷設(shè)時(shí)其安全載流量為30A。iii)選擇電氣設(shè)備選擇分配箱進(jìn)線開(kāi)關(guān)為DZ550/3，其脫扣器整定電流值為Ir = 40A。(14)分2進(jìn)線及進(jìn)線開(kāi)關(guān)的選擇i)計(jì)算電流Kx = ，Cosφ = Ijs = KxΣPe/(UeCosφ) = (1+1+1+1+1)/() = 由于計(jì)算電流小于該分配箱下支線電流，所以取最大支線電流值：ii)選擇導(dǎo)線按允許電壓降：S = KxΣ(PL)/C△U = () = 選擇VV325+216，埋地敷設(shè)時(shí)其安全載流量為94A。iii)選擇電氣設(shè)備選擇分配箱進(jìn)線開(kāi)關(guān)為DZ10250/3，其脫扣器整定電流值為Ir = 200A。(15)干1導(dǎo)線截面及出線開(kāi)關(guān)的選擇i)選擇導(dǎo)線截面按導(dǎo)線安全載流量：Kx = ，Cosφ = Ijs = KxΣPe/(UeCosφ) = () = 由于計(jì)算電流小于該干線下支線電流，所以取最大支線電流值：按允許電壓降：S = KxΣ(PL)/C△U = () = 選擇VV325+216，埋地敷設(shè)時(shí)其安全載流量為110A。ii)選擇出線開(kāi)關(guān)干1出線開(kāi)關(guān)選擇DZ10250/3，其脫