珠海商住建筑施工臨時(shí)用電方案（91頁）[優(yōu)秀工程方案]

1、臨時(shí)用電專項(xiàng)施工方案 臨時(shí)用電專項(xiàng)施工方案編制人: 編制單位技術(shù)負(fù)責(zé)人: 編制單位(蓋章): 編制日期: 施工臨時(shí)用電方案目 錄一、工程概況3二、編制依據(jù)3三、施工條件3四、設(shè)計(jì)內(nèi)容和步驟51、現(xiàn)場勘探及初步設(shè)計(jì):52、確定用電負(fù)荷:63、計(jì)算電流154、選擇電氣設(shè)備16五、繪制臨時(shí)供電施工圖80六、安全用電防火措施941、施工現(xiàn)場發(fā)生火災(zāi)的主要原因942、預(yù)防電氣火災(zāi)的措施953、臨時(shí)用電組織管理機(jī)構(gòu)96一、工程概況工程名稱:建設(shè)單位:監(jiān)理單位:設(shè)計(jì)單位:施工單位: .位于珠海市斗門區(qū)白蕉鎮(zhèn)虹橋三路南側(cè)，總建筑面積為65767.12平方米。其中20XX34層、15、16#樓33層及4棟商業(yè),

2、 住宅樓建筑高度分別為99m、95.60m，商業(yè)G5、G(7/9/10)建筑高度分別為10.5m、9m,設(shè)地下室1層。結(jié)構(gòu)等級(jí)為二級(jí)，耐火等級(jí)為二級(jí)，耐久年限為50年，抗震設(shè)防烈度為7度。室內(nèi)環(huán)境控制分類為1類。二、編制依據(jù)低壓配電設(shè)計(jì)規(guī)范GB50054-95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GB50194-93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GB50055-93中國建筑工業(yè)出版社供配電系統(tǒng)設(shè)計(jì)規(guī)范GB50052-95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JGJ46-20XX中國建筑工業(yè)出版社建筑施工安全檢查標(biāo)準(zhǔn)JGJ59-20XX有關(guān)建筑施工用電現(xiàn)場管理的安全技

3、術(shù)規(guī)范和規(guī)定等。三確定電源進(jìn)線、配電室、總配電柜、分配電箱等位置及線路走向1、現(xiàn)已在本工程的東南角安裝一臺(tái)400KVA容量的電力變壓器，根據(jù)現(xiàn)場平面布置情況，在本工程的東南側(cè)設(shè)置配電房及一臺(tái)100KVA發(fā)電機(jī)組。2、分配電箱的位置及現(xiàn)場線路走向，主要沿西側(cè)圍墻由北向東進(jìn)行布置，分別設(shè)置砼輸送、人貨電梯、塔吊、鋼筋木工加工場、辦公生活區(qū)等分配電箱，具體詳見施工現(xiàn)場用電平面布置圖。(P82)三、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 塔式起重機(jī) 50 1 50 2 人 貨 梯 SCD100/100A 11 1 11 3 灰漿攪拌機(jī) UJ32

4、5 3 1 3 4 木工圓鋸 MJ104 3 1 3 5 插入式振動(dòng)器 ZX35 0.8 3 2.4 6 插入式振動(dòng)器 ZX25 0.8 2 1.6 7 交流電焊機(jī) BX3-120XX 9 1 9 8 白熾燈 0.01 1 0.01 9 碘鎢燈 0.5 1 0.5 10 人 貨 梯 SCD100/100A 11 1 11 11 灰漿攪拌機(jī) UJ325 3 1 3 12 鋼筋調(diào)直機(jī) GT4/14 4 1 4 13 鋼筋彎曲機(jī) GW40 3 1 3 14 鋼筋切斷機(jī) QJ32-1 3 1 3 15 木工圓鋸 MJ104 3 1 3 16 插入式振動(dòng)器 ZX35 0.8 3 2.4 17 插入式振動(dòng)

5、器 ZX25 0.8 2 1.6 18 交流電焊機(jī) BX3-120XX 9 1 9 19 白熾燈 0.01 1 0.01 20XX 碘鎢燈 0.5 1 0.5 21 塔式起重機(jī) 50 1 50 22 人 貨 梯 SCD100/100A 11 1 11 23 灰漿攪拌機(jī) UJ325 3 1 3 24 鋼筋調(diào)直機(jī) GT4/14 4 1 4 25 鋼筋彎曲機(jī) GW40 3 1 3 26 鋼筋切斷機(jī) QJ32-1 3 1 3 27 木工圓鋸 MJ104 3 1 3 28 插入式振動(dòng)器 ZX35 0.8 2 1.6 29 插入式振動(dòng)器 ZX25 0.8 2 1.6 30 交流電焊機(jī) BX3-120XX

6、9 1 9 31 白熾燈 0.01 1 0.01 32 碘鎢燈 0.5 1 0.5 33 塔式起重機(jī) 50 1 50 34 灰漿攪拌機(jī) UJ325 3 1 3 35 插入式振動(dòng)器 ZX35 0.8 2 1.6 36 插入式振動(dòng)器 ZX25 0.8 2 1.6 37 交流電焊機(jī) BX3-120XX 9 1 9 38 白熾燈 0.01 1 0.01 39 碘鎢燈 0.5 1 0.5 40 熒光燈 YG40 0.04 4 0.16 41 熒光燈 YG40 0.04 16 0.64 42 熒光燈 YG40 0.04 6 0.24 43 熒光燈 YG40 0.04 6 0.24 44 熒光燈 YG40

7、0.04 16 0.64 45 熒光燈 YG40 0.04 16 0.64 46 熒光燈 YG40 0.04 16 0.64 47 熒光燈 YG40 0.04 16 0.64 48 熒光燈 YG40 0.04 4 0.16 -四、設(shè)計(jì)內(nèi)容和步驟1、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)施工前無各種埋地管線。(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TN-S系統(tǒng)供電。(3)根據(jù)施工現(xiàn)場用電設(shè)備布置情況，總箱進(jìn)線采用導(dǎo)線空氣明敷/架空線路敷設(shè)，干線采用穿硬塑料管敷設(shè)，用電器導(dǎo)線采用穿硬塑料管敷設(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，三級(jí)

8、防護(hù)。(4)按照J(rèn)GJ46-20XX規(guī)定制定施工組織設(shè)計(jì)，接地電阻R4。2、確定用電負(fù)荷:(1)、塔式起重機(jī)Kx = 0.7 Cos = 0.9 tg = 0.48將Jc =40%統(tǒng)一換算到Jc1 =25%的額定容量Pn = 50kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/250 = 63.25 kWPjs = KxPe =0.763.25 = 44.27kWQjs = Pjs tg=44.270.48 = 21.44 kvar(2)、建筑施工外用電梯Kx = 0.7 Cos = 0.6 tg = 1.33Pjs = 0.711 = 7.7 kWQjs = Pjs

9、 tg=7.71.33 = 10.27 kvar(3)、灰漿攪拌機(jī)Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.53 = 1.5 kWQjs = Pjs tg=1.51.52 = 2.28 kvar(4)、木工圓鋸Kx = 0.65 Cos = 0.6 tg = 1.33Pjs = 0.653 = 1.95 kWQjs = Pjs tg=1.951.33 = 2.6 kvar(5)、插入式振動(dòng)器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.32.4 = 0.72 kWQjs = Pjs tg=0.721.02 = 0.73 kvar(6)、

10、插入式振動(dòng)器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.6 = 0.48 kWQjs = Pjs tg=0.481.02 = 0.49 kvar(7)、交流電焊機(jī)Kx = 0.5 Cos = 0.4 tg = 2.29將Jc =50%統(tǒng)一換算到Jc1 =100%的額定容量Pn = Sn Cos = 90.4=3.6kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/23.6 = 2.55 kWPjs = KxPe =0.52.55 = 1.27kWQjs = Pjs tg=1.272.29 = 2.92 kvar(8)、白熾燈Kx = 1 Co

11、s = 1 tg = 0Pjs = 10.011 = 0.01 kWQjs = Pjs tg=0.010 = 0 kvar(9)、碘鎢燈Kx = 0.6 Cos = 0.6 tg = 1.33Pjs = 0.60.51 = 0.3 kWQjs = Pjs tg=0.31.33 = 0.4 kvar(10)、建筑施工外用電梯Kx = 0.7 Cos = 0.6 tg = 1.33Pjs = 0.711 = 7.7 kWQjs = Pjs tg=7.71.33 = 10.27 kvar(11)、灰漿攪拌機(jī)Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.53 = 1.5 k

12、WQjs = Pjs tg=1.51.52 = 2.28 kvar(12)、鋼筋調(diào)直機(jī)Kx = 0.65 Cos = 0.7 tg = 1.02Pjs = 0.654 = 2.6 kWQjs = Pjs tg=2.61.02 = 2.65 kvar(13)、鋼筋彎曲機(jī)Kx = 0.65 Cos = 0.7 tg = 1.02Pjs = 0.653 = 1.95 kWQjs = Pjs tg=1.951.02 = 1.99 kvar(14)、鋼筋切斷機(jī)Kx = 0.65 Cos = 0.7 tg = 1.02Pjs = 0.653 = 1.95 kWQjs = Pjs tg=1.951.02 =

13、 1.99 kvar(15)、木工圓鋸Kx = 0.65 Cos = 0.6 tg = 1.33Pjs = 0.653 = 1.95 kWQjs = Pjs tg=1.951.33 = 2.6 kvar(16)、插入式振動(dòng)器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.32.4 = 0.72 kWQjs = Pjs tg=0.721.02 = 0.73 kvar(17)、插入式振動(dòng)器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.6 = 0.48 kWQjs = Pjs tg=0.481.02 = 0.49 kvar(18)、交流電焊機(jī)K

14、x = 0.5 Cos = 0.4 tg = 2.29將Jc =50%統(tǒng)一換算到Jc1 =100%的額定容量Pn = Sn Cos = 90.4=3.6kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/23.6 = 2.55 kWPjs = KxPe =0.52.55 = 1.27kWQjs = Pjs tg=1.272.29 = 2.92 kvar(19)、白熾燈Kx = 1 Cos = 1 tg = 0Pjs = 10.011 = 0.01 kWQjs = Pjs tg=0.010 = 0 kvar(20XX碘鎢燈Kx = 0.6 Cos = 0.6 tg = 1.33P

15、js = 0.60.51 = 0.3 kWQjs = Pjs tg=0.31.33 = 0.4 kvar(21)、塔式起重機(jī)Kx = 0.7 Cos = 0.9 tg = 0.48將Jc =40%統(tǒng)一換算到Jc1 =25%的額定容量Pn = 50kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/250 = 63.25 kWPjs = KxPe =0.763.25 = 44.27kWQjs = Pjs tg=44.270.48 = 21.44 kvar(22)、建筑施工外用電梯Kx = 0.7 Cos = 0.6 tg = 1.33Pjs = 0.711 = 7.7 kW

16、Qjs = Pjs tg=7.71.33 = 10.27 kvar(23)、灰漿攪拌機(jī)Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.53 = 1.5 kWQjs = Pjs tg=1.51.52 = 2.28 kvar(24)、鋼筋調(diào)直機(jī)Kx = 0.65 Cos = 0.7 tg = 1.02Pjs = 0.654 = 2.6 kWQjs = Pjs tg=2.61.02 = 2.65 kvar(25)、鋼筋彎曲機(jī)Kx = 0.65 Cos = 0.7 tg = 1.02Pjs = 0.653 = 1.95 kWQjs = Pjs tg=1.951.02 = 1.

17、99 kvar(26)、鋼筋切斷機(jī)Kx = 0.65 Cos = 0.7 tg = 1.02Pjs = 0.653 = 1.95 kWQjs = Pjs tg=1.951.02 = 1.99 kvar(27)、木工圓鋸Kx = 0.65 Cos = 0.6 tg = 1.33Pjs = 0.653 = 1.95 kWQjs = Pjs tg=1.951.33 = 2.6 kvar(28)、插入式振動(dòng)器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.6 = 0.48 kWQjs = Pjs tg=0.481.02 = 0.49 kvar(29)、插入式振動(dòng)器Kx =

18、 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.6 = 0.48 kWQjs = Pjs tg=0.481.02 = 0.49 kvar(30)、交流電焊機(jī)Kx = 0.5 Cos = 0.4 tg = 2.29將Jc =50%統(tǒng)一換算到Jc1 =100%的額定容量Pn = Sn Cos = 90.4=3.6kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/23.6 = 2.55 kWPjs = KxPe =0.52.55 = 1.27kWQjs = Pjs tg=1.272.29 = 2.92 kvar(31)、白熾燈Kx = 1 Cos = 1 tg

19、 = 0Pjs = 10.011 = 0.01 kWQjs = Pjs tg=0.010 = 0 kvar(32)、碘鎢燈Kx = 0.6 Cos = 0.6 tg = 1.33Pjs = 0.60.51 = 0.3 kWQjs = Pjs tg=0.31.33 = 0.4 kvar(33)、塔式起重機(jī)Kx = 0.7 Cos = 0.9 tg = 0.48將Jc =40%統(tǒng)一換算到Jc1 =25%的額定容量Pn = 50kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/250 = 63.25 kWPjs = KxPe =0.763.25 = 44.27kWQjs =

20、Pjs tg=44.270.48 = 21.44 kvar(34)、灰漿攪拌機(jī)Kx = 0.5 Cos = 0.55 tg = 1.52Pjs = 0.53 = 1.5 kWQjs = Pjs tg=1.51.52 = 2.28 kvar(35)、插入式振動(dòng)器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.6 = 0.48 kWQjs = Pjs tg=0.481.02 = 0.49 kvar(36)、插入式振動(dòng)器Kx = 0.3 Cos = 0.7 tg = 1.02Pjs = 0.31.6 = 0.48 kWQjs = Pjs tg=0.481.02 = 0.

21、49 kvar(37)、交流電焊機(jī)Kx = 0.5 Cos = 0.4 tg = 2.29將Jc =50%統(tǒng)一換算到Jc1 =100%的額定容量Pn = Sn Cos = 90.4=3.6kWPe = n(Jc/Jc1)1/2Pn = 1(0.5/1)1/23.6 = 2.55 kWPjs = KxPe =0.52.55 = 1.27kWQjs = Pjs tg=1.272.29 = 2.92 kvar(38)、白熾燈Kx = 1 Cos = 1 tg = 0Pjs = 10.011 = 0.01 kWQjs = Pjs tg=0.010 = 0 kvar(39)、碘鎢燈Kx = 0.6 Co

22、s = 0.6 tg = 1.33Pjs = 0.60.51 = 0.3 kWQjs = Pjs tg=0.31.33 = 0.4 kvar(40)、熒光燈Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.161.2 = 0.144 kWQjs = Pjs tg=0.140.62 = 0.09 kvar(41)、熒光燈Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.641.2 = 0.576 kWQjs = Pjs tg=0.580.62 = 0.36 kvar(42)、熒光燈Kx = 0.75 Cos = 0.85 tg

23、= 0.62Pjs = 0.750.241.2 = 0.216 kWQjs = Pjs tg=0.220.62 = 0.13 kvar(43)、熒光燈Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.241.2 = 0.216 kWQjs = Pjs tg=0.220.62 = 0.13 kvar(44)、熒光燈Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.641.2 = 0.576 kWQjs = Pjs tg=0.580.62 = 0.36 kvar(45)、熒光燈Kx = 0.75 Cos = 0.85 tg = 0

24、.62Pjs = 0.750.641.2 = 0.576 kWQjs = Pjs tg=0.580.62 = 0.36 kvar(46)、熒光燈Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.641.2 = 0.576 kWQjs = Pjs tg=0.580.62 = 0.36 kvar(47)、熒光燈Kx = 0.75 Cos = 0.85 tg = 0.62Pjs = 0.750.641.2 = 0.576 kWQjs = Pjs tg=0.580.62 = 0.36 kvar(48)、熒光燈Kx = 0.75 Cos = 0.85 tg = 0.62

25、Pjs = 0.750.161.2 = 0.144 kWQjs = Pjs tg=0.140.62 = 0.09 kvar(49)總的計(jì)算負(fù)荷計(jì)算，總箱同期系數(shù)取 Kx = 0.9總的有功功率Pjs = KxPjs = 0.9(44.27+7.7+1.5+1.95+0.72+0.48+1.27+0.01+0.3+7.7+1.5+2.6+1.95+1.95+1.95+0.72+0.48+1.27+0.01+0.3+44.27+7.7+1.5+2.6+1.95+1.95+1.95+0.48+0.48+1.27+0.01+0.3+44.27+1.5+0.48+0.48+1.27+0.01+0.3+0

26、.14+0.58+0.22+0.22+0.58+0.58+0.58+0.58+0.14) = 175.516 kW總的無功功率Qjs = KxQjs =0.9(21.44+10.27+2.28+2.6+0.73+0.49+2.92+0+0.4+10.27+2.28+2.65+1.99+1.99+2.6+0.73+0.49+2.92+0+0.4+21.44+10.27+2.28+2.65+1.99+1.99+2.6+0.49+0.49+2.92+0+0.4+21.44+2.28+0.49+0.49+2.92+0+0.4+0.09+0.36+0.13+0.13+0.36+0.36+0.36+0.3

27、6+0.09) = 130.685 kvar總的視在功率Sjs = ( Pjs2+Qjs2 )1/2 = (175.5162+130.6852)1/2 = 218.826 kVA總的計(jì)算電流計(jì)算Ijs = Sjs/(1.732Ue) = 218.826/(1.7320.38) = 332.481 A3、1號(hào)二級(jí)配電箱線路上導(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)采用銅橡皮絕緣導(dǎo)線穿硬塑料管敷設(shè)。(1)、塔式起重機(jī)開關(guān)箱至塔式起重機(jī)導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備

28、選擇(開關(guān)箱以下用電器啟動(dòng)后需要系數(shù)取1):3、計(jì)算電流Kx = 1 Cos = 0.9 tg = 0.48Ijs = Kx Pe /(1.732Ue Cos) = 163.25/(1.7320.380.9) = 106.77Aii)選擇導(dǎo)線選擇YJV-335+216 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇開關(guān)箱內(nèi)隔離開關(guān)為DZ10-250/3 ，其脫扣器整定電流值為Ir = 20XX，漏電保護(hù)器為 DZ10L-250/3。(2)、建筑施工外用電梯開關(guān)箱至建筑施工外用電梯導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇(開關(guān)箱以下用電器啟動(dòng)后需要系數(shù)取1):i)計(jì)算電流Kx = 1 Cos

29、= 0.6 tg = 1.33Ijs = Kx Pe /(1.732Ue Cos) = 111/(1.7320.380.6) = 27.86Aii)選擇導(dǎo)線選擇YJV-435 ，穿硬塑料管時(shí)其安全載流量為0A。4、選擇電氣設(shè)備選擇開關(guān)箱內(nèi)隔離開關(guān)為DZ10-250/3 ，其脫扣器整定電流值為Ir = 20XX，漏電保護(hù)器為 DZ10L-250/3。(3)、灰漿攪拌機(jī)開關(guān)箱至灰漿攪拌機(jī)導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇(開關(guān)箱以下用電器啟動(dòng)后需要系數(shù)取1):i)計(jì)算電流Kx = 1 Cos = 0.55 tg = 1.52Ijs = Kx Pe /(1.732Ue Cos) = 13/(1.7320

30、.380.55) = 8.29Aii)選擇導(dǎo)線選擇YJV-52.5 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇開關(guān)箱內(nèi)隔離開關(guān)為Hk1-15/3，漏電保護(hù)器為 DZ10L-250/3。(4)、木工圓鋸開關(guān)箱至木工圓鋸導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇(開關(guān)箱以下用電器啟動(dòng)后需要系數(shù)取1):i)計(jì)算電流Kx = 1 Cos = 0.6 tg = 1.33Ijs = Kx Pe /(1.732Ue Cos) = 13/(1.7320.380.6) = 7.6Aii)選擇導(dǎo)線選擇YJV-52.5 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇開關(guān)箱內(nèi)隔離開關(guān)為Hk1-15/3

31、，漏電保護(hù)器為 DZ10L-250/3。(5)、插入式振動(dòng)器開關(guān)箱至插入式振動(dòng)器導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇(開關(guān)箱以下用電器啟動(dòng)后需要系數(shù)取1):i)計(jì)算電流Kx = 1 Cos = 0.7 tg = 1.02Ijs = Kx Pe /(1.732Ue Cos) = 10.8/(1.7320.380.7) = 1.74Aii)選擇導(dǎo)線選擇YJV-52.5 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備由于開關(guān)控制3臺(tái)用電器，開關(guān)的電流為Ir=1.743.00(臺(tái)數(shù))= 5.21 A。選擇開關(guān)箱內(nèi)隔離開關(guān)為DZ5-50/3 ，其脫扣器整定電流值為Ir = 40A，漏電保護(hù)器為 DZ1

32、0L-250/3。(6)、插入式振動(dòng)器開關(guān)箱至插入式振動(dòng)器導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇(開關(guān)箱以下用電器啟動(dòng)后需要系數(shù)取1):i)計(jì)算電流Kx = 1 Cos = 0.7 tg = 1.02Ijs = Kx Pe /(1.732Ue Cos) = 10.8/(1.7320.380.7) = 1.74Aii)選擇導(dǎo)線選擇YJV-52.5 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備由于開關(guān)控制2臺(tái)用電器，開關(guān)的電流為Ir=1.742.00(臺(tái)數(shù))= 3.47 A。選擇開關(guān)箱內(nèi)隔離開關(guān)為DZ5-50/3 ，其脫扣器整定電流值為Ir = 40A，漏電保護(hù)器為 DZ10L-250/3。(7

33、)、交流電焊機(jī)開關(guān)箱至交流電焊機(jī)導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇(開關(guān)箱以下用電器啟動(dòng)后需要系數(shù)取1):i)計(jì)算電流Kx = 1 Cos = 0.4 tg = 2.29Ijs = Kx Pe /(Ue Cos) = 12.55/(0.380.4) = 16.75Aii)選擇導(dǎo)線選擇YJV-46+12.5 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇開關(guān)箱內(nèi)隔離開關(guān)為DZ10-100/3 ，其脫扣器整定電流值為Ir = 80A，漏電保護(hù)器為 DZ10L-250/3。(8)、白熾燈開關(guān)箱至白熾燈導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇(開關(guān)箱以下用電器啟動(dòng)后需要系數(shù)取1):i)計(jì)算電流Kx =

34、1 Cos = 1 tg = 0Ijs = Kx Pe /(Ue Cos) = 10.01/(0.221) = 0.05Aii)選擇導(dǎo)線選擇YJV-52.5 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇開關(guān)箱內(nèi)隔離開關(guān)為DZ15-63/3 ，其脫扣器整定電流值為Ir = 49A，漏電保護(hù)器為 DZ10L-250/3。(9)、碘鎢燈開關(guān)箱至碘鎢燈導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇(開關(guān)箱以下用電器啟動(dòng)后需要系數(shù)取1):i)計(jì)算電流Kx = 1 Cos = 0.6 tg = 1.33Ijs = Kx Pe /(Ue Cos) = 10.5/(0.220.6) = 3.79Aii)選擇導(dǎo)線

35、選擇YJV-52.5 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇開關(guān)箱內(nèi)隔離開關(guān)為DZ15-63/3 ，其脫扣器整定電流值為Ir = 49A，漏電保護(hù)器為 DZ10L-250/3。(10)、1號(hào)塔吊三級(jí)動(dòng)力箱至第1組電機(jī)(塔式起重機(jī))的開關(guān)箱的導(dǎo)線截面及分配箱內(nèi)開關(guān)的選擇i) 計(jì)算電流塔式起重機(jī)Kx = 0.7 Cos= 0.9 tg= 0.48Ijs = Kx Pe 臺(tái)數(shù)/(1.732Ue Cos) = 0.763.251/(1.7320.380.9) = 74.74AIjs(1組電機(jī) )= 74.74A該組中最大的開關(guān)箱電流Ijs=106.77A兩者中取大值Ijs=106.

36、77Aii)選擇導(dǎo)線選擇YJV-435+116 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開關(guān)為DZ10-250/3 ，其脫扣器整定電流值為Ir = 20XX，漏電保護(hù)器為 DZ10L-250/3。(11)、1人貨梯三級(jí)動(dòng)力箱至第1組電機(jī)(建筑施工外用電梯)的開關(guān)箱的導(dǎo)線截面及分配箱內(nèi)開關(guān)的選擇i) 計(jì)算電流建筑施工外用電梯Kx = 0.7 Cos= 0.6 tg= 1.33Ijs= Kx Pe 臺(tái)數(shù)/(1.732Ue Cos) = 0.7111/(1.7320.380.6) = 19.5AIjs(1組電機(jī) )= 19.5A該組中最大的開關(guān)箱電流Ijs=27.86A兩者

37、中取大值Ijs=27.86Aii)選擇導(dǎo)線選擇YJV-435+116 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開關(guān)為DZ10-250/3 ，其脫扣器整定電流值為Ir = 20XX，漏電保護(hù)器為 DZ10L-250/3。(12)、2砂漿機(jī)三級(jí)動(dòng)力箱至第1組電機(jī)(灰漿攪拌機(jī))的開關(guān)箱的導(dǎo)線截面及分配箱內(nèi)開關(guān)的選擇i) 計(jì)算電流灰漿攪拌機(jī)Kx = 0.5 Cos= 0.55 tg= 1.52Ijs= Kx Pe 臺(tái)數(shù)/(1.732Ue Cos) = 0.531/(1.7320.380.55) = 4.14AIjs(1組電機(jī) )= 4.14A該組中最大的開關(guān)箱電流Ijs=8.

38、29A兩者中取大值Ijs=8.29Aii)選擇導(dǎo)線選擇YJV-52.5 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開關(guān)為DZ15-63/3 ，其脫扣器整定電流值為Ir = 49A，漏電保護(hù)器為 DZ10L-250/3。(13)、臺(tái)式園鋸三級(jí)動(dòng)力箱至第1組電機(jī)(木工圓鋸)的開關(guān)箱的導(dǎo)線截面及分配箱內(nèi)開關(guān)的選擇i) 計(jì)算電流木工圓鋸Kx = 0.65 Cos= 0.6 tg= 1.33Ijs= Kx Pe 臺(tái)數(shù)/(1.732Ue Cos) = 0.6531/(1.7320.380.6) = 4.94AIjs(1組電機(jī) )= 4.94A該組中最大的開關(guān)箱電流Ijs=7.6A兩

39、者中取大值Ijs=7.60Aii)選擇導(dǎo)線選擇YJV-52.5 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開關(guān)為DZ5-50/3 ，其脫扣器整定電流值為Ir = 40A，漏電保護(hù)器為 DZ15L-100/30。(14)、50mm砼振動(dòng)器三級(jí)動(dòng)力箱至第1組電機(jī)(插入式振動(dòng)器)的開關(guān)箱的導(dǎo)線截面及分配箱內(nèi)開關(guān)的選擇i) 計(jì)算電流插入式振動(dòng)器Kx = 0.3 Cos= 0.7 tg= 1.02Ijs= Kx Pe 臺(tái)數(shù)/(1.732Ue Cos) = 0.30.83/(1.7320.380.7) = 1.56AIjs(1組電機(jī) )= 1.56A該組中最大的開關(guān)箱電流Ijs=5

40、.21A兩者中取大值Ijs=5.21Aii)選擇導(dǎo)線選擇YJV-52.5 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開關(guān)為DZ5-50/3 ，其脫扣器整定電流值為Ir = 40A，漏電保護(hù)器為 DZ10L-250/3。(15)、30mm砼振動(dòng)器三級(jí)動(dòng)力箱至第1組電機(jī)(插入式振動(dòng)器)的開關(guān)箱的導(dǎo)線截面及分配箱內(nèi)開關(guān)的選擇i) 計(jì)算電流插入式振動(dòng)器Kx = 0.3 Cos= 0.7 tg= 1.02Ijs= Kx Pe 臺(tái)數(shù)/(1.732Ue Cos) = 0.30.82/(1.7320.380.7) = 1.04AIjs(1組電機(jī) )= 1.04A該組中最大的開關(guān)箱電流I

41、js=3.47A兩者中取大值Ijs=3.47Aii)選擇導(dǎo)線選擇YJV-52.5 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開關(guān)為DZ5-50/3 ，其脫扣器整定電流值為Ir = 40A，漏電保護(hù)器為 DZ10L-250/3。(16)、交流電焊機(jī)三級(jí)動(dòng)力箱至第1組電機(jī)(交流電焊機(jī))的開關(guān)箱的導(dǎo)線截面及分配箱內(nèi)開關(guān)的選擇i) 計(jì)算電流交流電焊機(jī)Kx = 0.5 Cos= 0.4 tg= 2.29Ijs = Kx Pe 臺(tái)數(shù)/(Ue Cos) = 0.52.551/(0.380.4) = 8.37AIjs(1組電機(jī) )= 8.37A該組中最大的開關(guān)箱電流Ijs=16.75A

42、兩者中取大值Ijs=16.75Aii)選擇導(dǎo)線選擇YJV-46+12.5 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開關(guān)為DZ10-100/3 ，其脫扣器整定電流值為Ir = 80A，漏電保護(hù)器為 DZ10L-250/3。(17)、照明分箱至第1組照明燈具(白熾燈、碘鎢燈)的開關(guān)箱的導(dǎo)線截面及分配箱內(nèi)開關(guān)的選擇i) 計(jì)算電流白熾燈Kx = 1 Cos= 1 tg= 0Ijs = Kx Pe 臺(tái)數(shù)/(Ue Cos) = 10.011/(0.221) = 0.02A碘鎢燈Kx = 0.6 Cos= 0.6 tg= 1.33Ijs = Kx Pe 臺(tái)數(shù)/(Ue Cos) =

43、0.60.51/(0.220.6) = 0.76AIjs(1組燈具 )= 0.77A該組中最大的開關(guān)箱電流Ijs=3.79A由于該組下有多個(gè)開關(guān)箱，所以最大電流需要乘以1.1的系數(shù)兩者中取大值Ijs=3.791.1=4.17Aii)選擇導(dǎo)線選擇YJV-52.5 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開關(guān)為DZ10-100/3 ，其脫扣器整定電流值為Ir = 80A，漏電保護(hù)器為 DZ10L-250/3。4、1號(hào)塔吊三級(jí)動(dòng)力箱進(jìn)線及進(jìn)線開關(guān)的選擇i)計(jì)算電流Kx = 0.7，Cos = 0.9Ijs = KxPe /(1.732Ue Cos) = 0.750/(1.7

44、320.380.9) = 59.09A該分箱下最大組線電流Ijs=106.77A兩者中取大值Ijs=106.77Aii)選擇導(dǎo)線選擇YJV-4150+190 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開關(guān)為DZ10-250/3 ，其脫扣器整定電流值為Ir = 20XX，漏電保護(hù)器為 DZ10L-250/3。5、1人貨梯三級(jí)動(dòng)力箱進(jìn)線及進(jìn)線開關(guān)的選擇i)計(jì)算電流Kx = 0.7，Cos = 0.9Ijs = KxPe /(1.732Ue Cos) = 0.711/(1.7320.380.9) = 13A該分箱下最大組線電流Ijs=27.86A兩者中取大值Ijs=27.86

45、Aii)選擇導(dǎo)線選擇YJV-435+116 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開關(guān)為DZ10-250/3 ，其脫扣器整定電流值為Ir = 20XX，漏電保護(hù)器為 DZ10L-250/3。6、2砂漿機(jī)三級(jí)動(dòng)力箱進(jìn)線及進(jìn)線開關(guān)的選擇i)計(jì)算電流Kx = 0.7，Cos = 0.9Ijs = KxPe /(1.732Ue Cos) = 0.73/(1.7320.380.9) = 3.55A該分箱下最大組線電流Ijs=8.29A兩者中取大值Ijs=8.29Aii)選擇導(dǎo)線選擇YJV-435+116 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開關(guān)為

46、DZ15-63/3 ，其脫扣器整定電流值為Ir = 49A，漏電保護(hù)器為 DZ10L-250/3。7、臺(tái)式園鋸三級(jí)動(dòng)力箱進(jìn)線及進(jìn)線開關(guān)的選擇i)計(jì)算電流Kx = 0.7，Cos = 0.9Ijs = KxPe /(1.732Ue Cos) = 0.73/(1.7320.380.9) = 3.55A該分箱下最大組線電流Ijs=7.60A兩者中取大值Ijs=7.60Aii)選擇導(dǎo)線選擇YJV-435+116 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開關(guān)為DZ15-63/3 ，其脫扣器整定電流值為Ir = 49A，漏電保護(hù)器為 DZ10L-250/3。(22)50mm砼振動(dòng)器三級(jí)動(dòng)力箱進(jìn)線及進(jìn)線開關(guān)的選擇i)計(jì)算電流Kx = 0.7，Cos = 0.9Ijs = KxPe /(1.732Ue Cos) = 0.70.8/(1.7320.380.9) = 0.95A該分箱下最大組線電流Ijs=5.21A兩者中取大值Ijs=5.21Aii)選擇導(dǎo)線選擇YJV-435+116 ，穿硬塑料管時(shí)其安全載流量為0A。iii)選擇電氣設(shè)備選擇分配箱內(nèi)開關(guān)為DZ5-50/3 ，其脫扣器整定電流值為Ir = 40A，漏電保護(hù)器為 DZ10L-250