【正文】 e/(UeCosφ) = 1( ) = b)選擇導(dǎo)線 選擇BX410 ，空氣明敷時(shí)其安全載流量為85A，室外架空銅芯導(dǎo)線按機(jī)械強(qiáng)度的最小截面為10mm2，滿足要求。 c)選擇電氣設(shè)備 由于開(kāi)關(guān)控制2臺(tái)機(jī)械，開(kāi)關(guān)的電流為Ir=2(臺(tái)數(shù))= A。 c)選擇電氣設(shè)備 選擇開(kāi)關(guān)箱內(nèi)開(kāi)關(guān)為DZ10100/3，其脫扣器整定電流值為Ir = 100A。分配箱至開(kāi)關(guān)箱，開(kāi)關(guān)箱至用電設(shè)備的導(dǎo)線敷設(shè)采用銅橡皮絕緣導(dǎo)線穿硬塑料管，室外架空銅導(dǎo)線按機(jī)械強(qiáng)度的最小截面為10mm2，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。 (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。用電系統(tǒng)概況施工現(xiàn)場(chǎng)設(shè)配電室一間，總配電箱（一級(jí)箱）一個(gè)，箱內(nèi)漏電按10個(gè)回路設(shè)置，現(xiàn)場(chǎng)實(shí)際使用7個(gè)回路（7個(gè)二級(jí)箱），二級(jí)箱名稱分別為:1樓塔吊、2樓塔吊、鋼筋加工棚鋼筋制作棚3樓塔吊、辦公區(qū)、電渣焊；每個(gè)二級(jí)箱下分設(shè)塔吊、攪拌機(jī)、施工電梯、樓層活動(dòng)箱等三級(jí)箱。高層建筑臨電用電施工組織設(shè)計(jì)概述作者：日期：漢中市南一環(huán)西段片區(qū)綜合改造工程安置房項(xiàng)目施工臨時(shí)用電專項(xiàng)方案陜西建工第十建設(shè)集團(tuán)有限公司漢中市南一環(huán)路西段綜合改造工程項(xiàng)目部2016 年5 月審批頁(yè)項(xiàng)目經(jīng)理： ＿編 制： ＿審 批： ＿審 核： ＿陜西建工第十建設(shè)集團(tuán)有限公司漢中市南一環(huán)路西段綜合改造工程項(xiàng)目部2016 年5 月 一、編制依據(jù)《低壓配電設(shè)計(jì)規(guī)范》GB5005495中國(guó)建筑工業(yè)出版社《建筑工程施工現(xiàn)場(chǎng)供電安全規(guī)范》GB5019493中國(guó)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(guó)建筑工業(yè)出版社《供配電系統(tǒng)設(shè)計(jì)規(guī)范》GB5005295中國(guó)建筑工業(yè)出版社《施工現(xiàn)場(chǎng)臨時(shí)用電安全技術(shù)規(guī)范》JGJ462005中國(guó)建筑工業(yè)出版社漢中市南一環(huán)西段片區(qū)綜合改造工程安置房項(xiàng)目施工組織設(shè)計(jì)方案漢中市南一環(huán)西段片區(qū)綜合改造工程安置房施工現(xiàn)場(chǎng)踏勘結(jié)果二、施工條件工程概況 漢中市南一環(huán)西段片區(qū)綜合改造工程安置房項(xiàng)目位于漢中市廣坪村，漢南路與南一環(huán)交匯十字西北角，屬于框架剪力墻結(jié)構(gòu)，地上31層；地下1層，為車庫(kù)；，建筑總面積70585平方米，總工期630天。本工程由漢中萬(wàn)達(dá)房地產(chǎn)開(kāi)發(fā)有限公司投資建設(shè)，中天建筑研究設(shè)計(jì)院設(shè)計(jì)，中冶地集團(tuán)西北巖土工程有限公司漢中分公司地質(zhì)勘查，浙江工正建設(shè)監(jiān)理咨詢有限公司監(jiān)理，陜西建工第十建設(shè)集團(tuán)有限公司組織施工；由張峰擔(dān)任項(xiàng)目經(jīng)理，何雙紅擔(dān)任技術(shù)負(fù)責(zé)人。施工現(xiàn)場(chǎng)用電量統(tǒng)計(jì)表項(xiàng)目機(jī)具名稱型 號(hào)功率(kW)數(shù)量(臺(tái))項(xiàng)目機(jī)具名稱型 號(hào)功率(kW)數(shù)量(臺(tái))垂直運(yùn)輸塔式起重機(jī)QTZ63323混凝土施工混凝土攪拌機(jī)JD350153雙籠施工電梯SC200TD283振 動(dòng) 棒HZX5012電動(dòng)吊籃1t16平板振動(dòng)器2鋼筋加工切 斷 機(jī)GJ—401高揚(yáng)程水泵33切 斷 機(jī)GJ—501其它圓 盤(pán) 鋸MJl093彎 曲 機(jī)WJ—401電 鉆l16彎 曲 機(jī)WJ—5041空 壓 機(jī)2對(duì) 焊 機(jī)UN—75501輕卡汽車1t1電渣壓力焊機(jī)BX2—5002平板振動(dòng)夯2直流電焊機(jī)AX4300103直螺紋套絲機(jī)31三、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)線穿硬管埋地敷設(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，兩極防護(hù)。確定用電負(fù)荷:(1)塔式起重機(jī) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 32 = Qjs = Pjstgφ = = (2)高壓汞燈(2臺(tái)) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 6 = Qjs = Pjstgφ = = (3)插入式振動(dòng)器(3臺(tái)) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (4)木工電動(dòng)工具(6臺(tái)) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 6 = Qjs = Pjstgφ = = (5)施工電梯 Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 28 = 14kW Qjs = Pjstgφ = 14 = (6)100m高揚(yáng)程水泵 Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 3 = Qjs = Pjstgφ = = (7)自落式混凝土攪拌機(jī) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 15 = Qjs = Pjstgφ = = (8)高壓汞燈(2臺(tái)) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 6 = Qjs = Pjstgφ = = (9)塔式起重機(jī) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 32 = Qjs = Pjstgφ = = (10)插入式振動(dòng)器(3臺(tái)) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (11)木工電動(dòng)工具(6臺(tái)) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 6 = Qjs = Pjstgφ = = (12)施工電梯 Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 28 = 14kW Qjs = Pjstgφ = 14 = (13)100m高揚(yáng)程水泵 Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 3 = Qjs = Pjstgφ = = (14)自落式混凝土攪拌機(jī) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 15 = Qjs = Pjstgφ = = (15)塔式起重機(jī) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 32 = Qjs = Pjstgφ = = (16)高壓汞燈(2臺(tái)) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 6 = Qjs = Pjstgφ = = (17)木工電鉆(6臺(tái)) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 6 = Qjs = Pjstgφ = = (18)插入式振動(dòng)器(3臺(tái)) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (19)施工電梯 Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 28 = 14kW Qjs = Pjstgφ = 14 = (20)100m高揚(yáng)程水泵 Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 3 = Qjs = Pjstgφ = = (21)自落式混凝土攪拌機(jī) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 15 = Qjs = Pjstgφ = = (22)鋼筋彎箍機(jī) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 3 = Qjs = Pjstgφ = = (23)鋼筋彎曲機(jī) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 3 = Qjs = Pjstgφ = = (24)鋼筋套絲機(jī) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 3 = Qjs = Pjstgφ = = (25)鋼筋調(diào)直機(jī) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (26)開(kāi)水器 Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 3 = Qjs = Pjstgφ = = (27)普通插座(20臺(tái)) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 4 = Qjs = Pjstgφ = = (28)節(jié)能燈(20臺(tái)) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (29)空調(diào)插座(8臺(tái)) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 16 = Qjs = Pjstgφ = = (30)交流電焊機(jī) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (31)電渣壓力焊機(jī) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (32)鋼筋切斷機(jī) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = = Qjs = Pjstgφ = = (33)鋼筋切斷機(jī) Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 3 = Qjs = Pjstgφ = = (34)木工圓鋸 Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 3 = Qjs = Pjstgφ = = (35)木工圓鋸 Kx = ,Cosφ = ,tgφ = Pjs = KxPe = 3 = Qjs = Pjstgφ = = (36)總負(fù)荷計(jì)算 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 = 總電流計(jì)算Ijs = Sjs / ( Ue) = / ( ) = 干線進(jìn)線截面及進(jìn)線開(kāi)關(guān) 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。(1)1樓塔吊上導(dǎo)線截面及分配箱、開(kāi)關(guān)箱內(nèi)電氣設(shè)備選擇 1)塔式起重機(jī)開(kāi)關(guān)箱至塔式起重機(jī)導(dǎo)線截面及開(kāi)關(guān)箱內(nèi)電氣設(shè)備選擇（開(kāi)關(guān)箱以下機(jī)械啟動(dòng)后需要系數(shù)取1）: a)計(jì)算電流 Kx = 1,Cosφ = Ijs = KxPe/(UeCosφ) = 132/( ) = b)選擇導(dǎo)線 選擇BX425 ，穿硬塑料管時(shí)其安全載流量為90A，室外架空銅芯導(dǎo)線按機(jī)械強(qiáng)度的最小截面為10mm2，滿足要求。 2)高壓汞燈(2臺(tái))開(kāi)關(guān)箱至高壓汞燈(2臺(tái))導(dǎo)線截面及開(kāi)關(guān)箱內(nèi)電氣設(shè)備選擇（開(kāi)關(guān)箱以下機(jī)械啟動(dòng)后需要系數(shù)取1）: a)計(jì)算電流 Kx = 1,Cosφ = Ijs = KxPe/(UeCosφ) = 13/( ) = b)選擇導(dǎo)線 選擇BX410 ，穿硬塑料管時(shí)其安全載流量為52A，室外架空銅芯導(dǎo)線按機(jī)械強(qiáng)度的最小截面為10mm2，滿足要求。 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 =