【正文】 施工臨時(shí)用電方案計(jì)算書甘谷頤年嘉園工程；屬于框架結(jié)構(gòu)。地上18層。地下1層；建筑高度：；標(biāo)準(zhǔn)層層高： ；總建筑面積：；總工期：0天；施工單位：。本工程由投資建設(shè)，設(shè)計(jì)，地質(zhì)勘察，監(jiān)理，組織施工；由擔(dān)任項(xiàng)目經(jīng)理，擔(dān)任技術(shù)負(fù)責(zé)人。一、編制依據(jù)《低壓配電設(shè)計(jì)規(guī)范》GB5005495中國建筑工業(yè)出版社《建筑工程施工現(xiàn)場供電安全規(guī)范》GB5019493中國建筑工業(yè)出版社《通用用電設(shè)備配電設(shè)計(jì)規(guī)范》GB5005593中國建筑工業(yè)出版社《供配電系統(tǒng)設(shè)計(jì)規(guī)范》GB5005295中國建筑工業(yè)出版社《施工現(xiàn)場臨時(shí)用電安全技術(shù)規(guī)范》JGJ462005中國建筑工業(yè)出版社《建筑施工安全檢查標(biāo)準(zhǔn)》JGJ5999二、施工條件施工現(xiàn)場用電量統(tǒng)計(jì)表:序號(hào) 機(jī)具名稱 型號(hào) 安裝功率(kW) 數(shù)量 合計(jì)功率(kW)1 鋼筋調(diào)直機(jī) GT4/14 4 1 4 2 鋼筋切斷機(jī) QJ401 1 3 鋼筋切斷機(jī) QJ401 1 4 鋼筋彎曲機(jī) GW40 3 1 3 5 交流電焊機(jī) 76 1 76 6 交流電焊機(jī) BX31201 9 1 9 7 照明 10 1 10 8 振動(dòng)夯土機(jī) HZD250 4 1 4 9 蛙式夯土機(jī) HW32 1 10 塔式起重機(jī) TQ60/80 1 11 JW500 30 1 30 12 JW500 30 1 30 13 插入式振動(dòng)器 ZX70 1 14 平板式振動(dòng)器 ZB11 1 15 交流電焊機(jī) 76 1 76 16 照明 2 1 2 17 混凝土輸送泵 HB15 90 1 90 18 木工圓鋸 MJ106 1 19 照明 10 1 10 三、設(shè)計(jì)內(nèi)容和步驟現(xiàn)場勘探及初步設(shè)計(jì):(1)本工程所在施工現(xiàn)場范圍內(nèi)無各種埋地管線。(2)現(xiàn)場采用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。(3)根據(jù)施工現(xiàn)場用電設(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臨時(shí)配電系統(tǒng)圖及現(xiàn)場平面圖，采用三級(jí)配電，兩級(jí)防護(hù)。(4)按照《JGJ462005》規(guī)定制定施工組織設(shè)計(jì)，接地電阻R≤4Ω。確定用電負(fù)荷:(1)、鋼筋調(diào)直機(jī)Kx = Cosφ = tgφ = Pjs = 4 = kWQjs = Pjs tgφ= = kvar(2)、鋼筋切斷機(jī)Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(3)、鋼筋切斷機(jī)Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(4)、鋼筋彎曲機(jī)Kx = Cosφ = tgφ = Pjs = 3 = kWQjs = Pjs tgφ= = kvar(5)、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 = 76=Pe = n(Jc/Jc1)1/2Pn = 1()1/2 = kWPjs = KxPe = = Qjs = Pjs tgφ= = kvar(6)、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 = 9=Pe = n(Jc/Jc1)1/2Pn = 1()1/2 = kWPjs = KxPe = = Qjs = Pjs tgφ= = kvar(7)、照明Kx = Cosφ = tgφ = Pjs = 10 = 3 kWQjs = Pjs tgφ=3 = 4 kvar(8)、振動(dòng)夯土機(jī)Kx = Cosφ = tgφ = Pjs = 4 = 2 kWQjs = Pjs tgφ=2 = kvar(9)、蛙式夯土機(jī)Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(10)、塔式起重機(jī)Kx = Cosφ = tgφ = 將Jc =40%統(tǒng)一換算到Jc1 =25%的額定容量Pn = Pe = n(Jc/Jc1)1/2Pn = 1()1/2 = kWPjs = KxPe = = Qjs = Pjs tgφ= = kvar(11)、強(qiáng)制式混凝土攪拌機(jī)Kx = Cosφ = tgφ = Pjs = 30 = kWQjs = Pjs tgφ= = kvar(12)、強(qiáng)制式混凝土攪拌機(jī)Kx = Cosφ = tgφ = Pjs = 30 = kWQjs = Pjs tgφ= = kvar(13)、插入式振動(dòng)器Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(14)、平板式振動(dòng)器Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(15)、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 = 76=Pe = n(Jc/Jc1)1/2Pn = 1()1/2 = kWPjs = KxPe = = Qjs = Pjs tgφ= = kvar(16)、照明Kx = Cosφ = tgφ = Pjs = 2 = kWQjs = Pjs tgφ= = kvar(17)、混凝土輸送泵Kx = Cosφ = tgφ = Pjs = 90 = 27 kWQjs = Pjs tgφ=27 = kvar(18)、木工圓鋸Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(19)、照明Kx = Cosφ = tgφ = Pjs = 10 = 3 kWQjs = Pjs tgφ=3 = kvar(20)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 = (++++++3+2+++++++++27++3) = kW總的無功功率Qjs = KxΣQjs =(++++++4++++++++++++) = kvar總的視在功率Sjs = ( Pjs2+Qjs2 )1/2 = (+)1/2 = kVA總的計(jì)算電流計(jì)算Ijs = Sjs/(Ue) = () = A1號(hào)干線線路上導(dǎo)線截面及分配箱、開關(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)備至開關(guān)箱計(jì)算，再由開關(guān)箱至分配箱計(jì)算，選擇導(dǎo)線及開關(guān)設(shè)備。分配箱至開關(guān)箱，開關(guān)箱至用電設(shè)備的導(dǎo)線敷設(shè)采用鋁塑料絕緣導(dǎo)線穿焊接鋼管敷設(shè)，由于這部分距離較短，因此不考慮電壓降，只按安全載流量選擇導(dǎo)線截面。(1)、鋼筋調(diào)直機(jī)開關(guān)箱至鋼筋調(diào)直機(jī)導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇（開關(guān)箱以下機(jī)械啟動(dòng)后需要系數(shù)取1）:i)計(jì)算電流Kx = 1 Cosφ = tgφ = Ijs = KxPe /(Ue Cosφ) = 14/() = ii)選擇導(dǎo)線選擇BLV4+1 ，穿焊接鋼管時(shí)其安全載流量為18A。iii)選擇電氣設(shè)備選擇開關(guān)箱內(nèi)開關(guān)為Hk115/3 ，熔斷器RC1A10其最大熔體電流為 IRD = 10A，可根，漏電保護(hù)器為 DZ10L100/3。(2)、鋼筋切斷機(jī)開關(guān)箱至鋼筋切斷機(jī)導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇（開關(guān)箱以下機(jī)械啟動(dòng)后需要系數(shù)取1）:i)計(jì)算電流Kx = 1 Cosφ = tgφ = Ijs = KxPe /(Ue Cosφ) = 1() = ii)選擇導(dǎo)線選擇BLV4+1 ，穿焊接鋼管時(shí)其安全載流量為18A。iii)選擇電氣設(shè)備選擇開關(guān)箱內(nèi)開關(guān)為Hk115/3 ，熔斷器RC1A15其最大熔體電流為 IRD = 15A，可根，漏電保護(hù)器為 DZ10L100/3。(3)、鋼筋切斷機(jī)開關(guān)箱至鋼筋切斷機(jī)導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇（開關(guān)箱以下機(jī)械啟動(dòng)后需要系數(shù)取1）:i)計(jì)算電流Kx = 1 Cosφ = tgφ = Ijs = KxPe /(Ue Cosφ) = 1() = ii)選擇導(dǎo)線選擇BLV