臨時用電施工方案

1、 江蘇中南建筑產(chǎn)業(yè)集團(tuán)有限責(zé)任公司工程一、編制依據(jù)1、施工組織設(shè)計、項目管理策劃書華潤置地未來科技城北地塊總承包工程施工組織設(shè)計；華潤置地未來科技城北地塊總承包工程項目策劃。2、施工圖紙華潤置地未來科技城北地塊總承包工程施工圖2017.7.31。3、主要法規(guī)、規(guī)范、規(guī)程、圖集表1-3-1 主要參考法規(guī)明細(xì)序 號類 別名 稱編 號1國 家中華人民共和國建筑法2中華人民共和國勞動法3建設(shè)工程質(zhì)量管理條例4行 業(yè)建設(shè)工程施工現(xiàn)場管理規(guī)定建設(shè)部令1991年第15號5地 方北京市建設(shè)工程施工現(xiàn)場安全防護(hù)標(biāo)準(zhǔn)6北京市建設(shè)工程施工現(xiàn)場環(huán)境保護(hù)標(biāo)準(zhǔn)7北京市建設(shè)工程施工現(xiàn)場保衛(wèi)消防標(biāo)準(zhǔn)8北京市建設(shè)工程施工現(xiàn)場管

2、理辦法北京市人民政府令第72號文件表1-3-2 主要參考規(guī)范、規(guī)程明細(xì)序 號類 別規(guī)范、規(guī)程名稱編 號1國 家建設(shè)工程施工現(xiàn)場供用電安全規(guī)范GB50194-20142供配電系統(tǒng)設(shè)計規(guī)范 GB50052-20093低壓配電設(shè)計規(guī)范 GB50054-20114電氣裝置安裝工程接地裝置施工及驗收規(guī)范GB50169-20165建筑電氣工程施工質(zhì)量驗收規(guī)范GB50303-20156行 業(yè)施工現(xiàn)場臨時用電安全技術(shù)規(guī)范JGJ4620057建筑施工安全檢查標(biāo)準(zhǔn)JGJ59-20118地方北京市建筑工程施工安全操作規(guī)程DBJ01-62-2002二、工程概況華潤未來科技城北地塊總承包工程項目總建筑面積181108.

3、0平方米。建設(shè)單位為北京未來科技城潤昌置業(yè)有限公司。本工程共9個單體，其中A-01#住宅樓10層，總面積18572.63；A-02#住宅樓10層，總面積12561.63；A-03#住宅樓11層，總面積9226.4；A-04商業(yè)及辦公樓7層，總面積19481.34；A-05地下車庫總面積15668.52；B-01#住宅樓10層，總面積14080.69；B-02#住宅樓7層，總面積21999.53；B-03#住宅樓11層，總面積9652.47；B-04#商業(yè)及辦公樓8層，總面積32394.69；B-05#開閉站2層，總面積600；B-06#地下車庫,總面積26870,結(jié)構(gòu)類型：住宅為剪力墻結(jié)構(gòu)，商

4、業(yè)及辦公樓為框剪結(jié)構(gòu)，地下車庫為板柱結(jié)構(gòu)。表2-1-1 項目基本概況信息序號項 目內(nèi) 容1工程名稱2建設(shè)地點3建設(shè)單位4設(shè)計單位5監(jiān)理單位6施工單位7質(zhì)量監(jiān)理單位8質(zhì)量標(biāo)準(zhǔn)三、施工部署1、現(xiàn)場現(xiàn)狀1.1 華潤置地未來科技城北地塊總承包工程項目位于北京市昌平區(qū)未來科技城核心區(qū)，項目施工場地平坦，施工主干道北門緊鄰英才北二街，東門緊鄰未來科技城主干道。1.2 甲方指定箱變在場地的東側(cè)和北側(cè)，有4臺500KW的臨電箱變作為現(xiàn)場施工臨電電源，其中1號箱變、2號箱變、3號箱變3臺箱變供現(xiàn)場使用，4號箱變供售樓部使用，靠近A-01#樓的箱變?yōu)?號箱變，靠近B-02#樓的箱變?yōu)?號箱變、3號箱變和4號箱變，

5、其中現(xiàn)場施工狹窄，在進(jìn)行電纜埋設(shè)時，應(yīng)著重注意電纜的防護(hù)。2、現(xiàn)場臨電布置2.1 施工場區(qū)有四臺500KVA箱變，三臺箱變供現(xiàn)場使用，一臺供售樓部使用。2.2 現(xiàn)場設(shè)配電室2間，1#一級配電箱一間，2#一級配電箱、3#一級配電箱一間，配電室內(nèi)設(shè)總配電柜3臺，1#箱變主要供工人生活區(qū)、項目辦公室、鋼筋場、木工廠、水泵房、A-02#樓塔吊，設(shè)置四個二級箱。2#箱變主要供A-01#樓、A-02#樓、A-03#樓、A-04#樓、A-05#地下車庫使用，設(shè)置四個二級箱。3#箱變主要供B-01#樓、B-02#樓、B-03#樓、B-04#樓、B-05#開閉站、B-06#地下車庫等使用，設(shè)置四個二級箱。2.3

6、 臨時用電采用TN-S三相五線制保護(hù)系統(tǒng)供電?？偲矫娌贾靡姼綀D：施工現(xiàn)場臨時用電總平面布置圖。四、施工臨時用電設(shè)計1、負(fù)荷計算 由于各樓號開工時間相近，現(xiàn)場高峰期主要施工用電為結(jié)構(gòu)施工階段及裝修階段，主要用電設(shè)備為塔吊、人貨電梯、鋼筋加工、木工加工、機(jī)電加工、焊機(jī)、振搗棒、干混砂漿機(jī)、現(xiàn)場照明用電，根據(jù)機(jī)械設(shè)備配置表計算用電量負(fù)荷。各設(shè)備用電量見下表。1.1 1#配電室現(xiàn)場用電最高峰總負(fù)荷計算和總電流量計算表4-1-1 主要施工機(jī)械配置計劃序號名稱型號數(shù)量單機(jī)額定功率（kw）總功率（kw）1塔吊QTZ80（6015）12鋼筋套絲機(jī)TS16-3243鋼筋冷拉機(jī)GT6/1224鋼筋切斷機(jī)GJ5-4

7、025鋼筋彎曲機(jī)GW-4026電焊機(jī)BX3-50027木工圓鋸MJ10528平板振動器ZB1149插入式振搗器50mm510切割機(jī)RNC-3300ZB211空氣壓縮機(jī)XF200212污水泵113加壓泵214合計施工現(xiàn)場所用全部電動機(jī)設(shè)備總功率P1=184.5KW，需用系數(shù)取K1=0.6，COS=0.75；施工現(xiàn)場所用全部電焊機(jī)總功率P2=57.2KVA，根據(jù)施工現(xiàn)場實際情況需要系數(shù)取K2=0.5；辦公及生產(chǎn)照明用電量P3=500KW?？傆秒娯?fù)荷計算：P總=1.05（K1P1/COS+K2P2+K3P3） =1.05（0.6184.5/0.75+0.557.2+0.5500）=1.05(147.

8、2+51.5+250)=456Kw500kw其中: P總總計算負(fù)荷；K1、 K2、 K3需用系數(shù)；P1 機(jī)械設(shè)備總負(fù)荷；P2 焊機(jī)類總負(fù)荷；P3 生活及照明負(fù)荷；業(yè)主提供北區(qū)的箱變電源滿足要求。1.2 2#配電室現(xiàn)場用電最高峰總負(fù)荷計算和總電流量計算表4-1-2 主要施工機(jī)械配置計劃序號名稱型號數(shù)量單機(jī)額定功率（kw）總功率（kw）1塔吊QTZ80（6015）150502塔吊QTZ80（5613）3501503 人貨電梯SC200/2004662644電焊機(jī)BX3-500228.657.25平板振動器ZB1141.566插入式振搗器50mm41.567空氣壓縮機(jī)XF20027.5158合計 4

9、91施工現(xiàn)場所用全部電動機(jī)設(shè)備總功率P1=491kW，需用系數(shù)取K1=0.6，COS=0.75；施工現(xiàn)場所用全部電焊機(jī)總功率P2=57.2KVA，根據(jù)施工現(xiàn)場實際情況需要系數(shù)取K2=0.5；室外照明按照18kw考慮?？傆秒娯?fù)荷計算：P總=1.05（K1P1/COS+K2P2+K3P3）=1.05（0.6491/0.75+0.557.2+18）=1.05(392.8+26.8+18)=459.5Kw500kw其中: P總總計算負(fù)荷；K1、 K2、 K3需用系數(shù)；P1 機(jī)械設(shè)備總負(fù)荷；P2 焊機(jī)類總負(fù)荷；P3 生活及照明負(fù)荷；業(yè)主提供北區(qū)的箱變電源滿足要求。1.3 3#配電室現(xiàn)場用電最高峰總負(fù)荷計

10、算和總電流量計算表4-1-3 主要施工機(jī)械配置計劃序號名稱型號數(shù)量單機(jī)額定功率（kw）總功率（kw）1塔吊QTZ80（6517）150502塔吊QTZ80（6015）150503塔吊QTZ80（5613）150504電焊機(jī)BX3-500228.657.25平板振動器ZB1141.566插入式振搗器50mm51.57.57空氣壓縮機(jī)XF20027.5158人貨電梯SC200/2003661989合計 376.5施工現(xiàn)場所用全部電動機(jī)設(shè)備總功率P1=376.5kW，需用系數(shù)取K1=0.6，COS=0.75；施工現(xiàn)場所用全部電焊機(jī)總功率P2=57.2KVA，根據(jù)施工現(xiàn)場實際情況需要系數(shù)取K2=0.5

11、；室外照明按照18kw考慮?？傆秒娯?fù)荷計算：P總=1.05（K1P1/COS+K2P2+K3P3）=1.05（0.6376.5/0.75+0.557.2+18）=1.05(3118.8.8+26.8+8)=358.7w500kw其中: P總總計算負(fù)荷；K1、 K2、 K3需用系數(shù)；P1 機(jī)械設(shè)備總負(fù)荷；P2 焊機(jī)類總負(fù)荷；P3 生活及照明負(fù)荷；業(yè)主提供北區(qū)的箱變電源滿足要求。2、電纜截面選擇2.1 1#一級配電箱計算及導(dǎo)線選擇2.1.1 用電負(fù)荷計算（1）1-1號分箱設(shè)備用電負(fù)荷1）空調(diào)Kx = 0.2，Cos = 0.8，tg = (1 - Cos2)0.5/ Cos = (1 - 0.82

12、)0.5 / 0.8 = 0.75Pe = nP(e/)0.5=822.5(0.40/0.40)0.5=205WIj1=KxPe/(1.732Uecos)=0.202151000/(1.7323800.80)= 77.86APjs=KxPe =0.20205=41kWQjs=Pjstg=410.75=30.75kvA2）熱水器Kx = 0.75，Cos = 0.8，tg = (1 - Cos2)0.5/ Cos = (1 - 0.82)0.5 / 0.8 = 0.75Pe = n P (e/)0.5 =2.00 6 (0.40 / 0.40)0.5 =12kWIj1 = Kx Pe / (1.

13、732 Ue cos) = 0.75 12 1000 / (1.732 380 0.80) = 17.09APjs = Kx Pe = 0.75 17.09= 12.81kWQjs = Pjs tg =12.81 0.75 = 9.61kvA3）廚房Kx = 0.35，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 1.00 40.00 (0.20 / 1.00)0.5 = 17.88kWIj1 = Kx Pe / (1.732 Ue cos) = 0.35 17.88 1000

14、/ (1.732 380 0.60) = 15.86APjs = Kx Pe = 0.35 15.86= 5.55WQjs = Pjs tg = 5.55 1.33 = 7.38kvA4）1-1號分箱計算負(fù)荷用電設(shè)備同期使用系數(shù)Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 234.88 1000 / (1.732 380 0.75) = 380.66A；同時要求分箱用電負(fù)荷不得小于分箱下用電設(shè)備最大計算負(fù)荷的1.1倍，故：Ijs = max380.66,1.1max(77.86,17.09,15.86) = 380.66A。（2）1-2號分箱設(shè)備用電負(fù)

15、荷1）空調(diào)Kx = 0.2，Cos = 0.8，tg = (1 - Cos2)0.5/ Cos = (1 - 0.82)0.5 / 0.8 = 0.75Pe = n P (e/)0.5 = 30 2.5 (0.40 / 0.40)0.5 = 75WIj1 = Kx Pe / (1.732 Ue cos) = 0.20 215 1000 / (1.732 380 0.80) = 28.49APjs = Kx Pe = 0.20 75= 15kWQjs = Pjs tg = 15 0.75 = 11.25kvA2）熱水器Kx = 0.75，Cos = 0.8，tg = (1 - Cos2)0.5/

16、 Cos = (1 - 0.82)0.5 / 0.8 = 0.75Pe = n P (e/)0.5 =2.00 6 (0.40 / 0.40)0.5 =12kWIj1 = Kx Pe / (1.732 Ue cos) = 0.75 12 1000 / (1.732 380 0.80) = 17.09APjs = Kx Pe = 0.75 17.09= 12.81kWQjs = Pjs tg =12.81 0.75 = 9.61kvA3）廚房Kx = 0.35，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n

17、 P (e/)0.5 = 1.00 20.00 (0.20 / 1.00)0.5 =8.94kWIj1 = Kx Pe / (1.732 Ue cos) = 0.35 8.94 1000 / (1.732 380 0.60) = 7.93APjs = Kx Pe = 0.35 8.94= 3.13WQjs = Pjs tg = 3.13 1.33 = 4.16kvA4）1-2號分箱計算負(fù)荷用電設(shè)備同期使用系數(shù)Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 95.94 1000 / (1.732 380 0.75) = 155.49A；同時要求分箱用電負(fù)荷

18、不得小于分箱下用電設(shè)備最大計算負(fù)荷的1.1倍，故：Ijs = max155.49,1.1max(28.49,17.09,7.93) = 155.49A（3）1-3號分箱設(shè)備用電負(fù)荷1）鋼筋彎曲機(jī)Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 2.00 3.00 (0.40 / 0.40)0.5 = 6.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 6.00 1000 / (1.732 380 0.70) = 8.46APjs =

19、 Kx Pe = 0.65 6.00 = 2.9kWQjs = Pjs tg = 1.95 1.02 = 2.96kvA2）鋼筋冷拉機(jī)Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 2.00 7.50 (0.40 / 0.40)0.5 = 15kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 15 1000 / (1.732 380 0.70) = 21.15APjs = Kx Pe = 0.65 15= 9.75kWQjs = Pjs

20、 tg =9.75 1.02 = 7.31kvA3）鋼筋套絲機(jī)Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 2.00 3.00 (0.40 / 0.40)0.5 = 6.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 6.00 1000 / (1.732 380 0.70) = 8.46APjs = Kx Pe = 0.65 6.00 = 2.9kWQjs = Pjs tg = 1.95 1.02 = 2.96kvA4）鋼筋切斷

21、機(jī)Kx = 0.65，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 10.00 (0.40 / 0.40)0.5 = 10.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 10.00 1000 / (1.732 380 0.70) = 14.11APjs = Kx Pe = 0.65 10 = 6.5kWQjs = Pjs tg = 6.5 1.02 = 6.634kvA5）交流電焊機(jī)Kx = 0.5，Cos = 0.4，tg = (1

22、- Cos2)0.5/ Cos = (1 - 0.42)0.5 / 0.4 = 2.29Pe = n P (e/)0.5 = 1.00 28.6 (0.50 / 1.00)0.5 = 16.55kWIj1 = Kx Pe / (1.732 Ue cos) = 0.50 16.55 1000 / (1.732 380 0.40) = 31.43APjs = Kx Pe = 0.50 16.55 = 8.27kWQjs = Pjs tg = 8.27 2.29 = 18.96kvA6）木工圓鋸Kx = 0.65，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.

23、62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 2.00 2.00 (0.40 / 0.40)0.5 = 4.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.65 4.00 1000 / (1.732 380 0.60) = 6.58APjs = Kx Pe = 0.65 4.00 = 2.6kWQjs = Pjs tg = 2.6 1.33 = 3.46kvA7）1-3號分箱計算負(fù)荷用電設(shè)備同期使用系數(shù)Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 57.55 1000 / (1.732 380 0

24、.75) = 93.27A；同時要求分箱用電負(fù)荷不得小于分箱下用電設(shè)備最大計算負(fù)荷的1.1倍，故：Ijs = max93.27,1.1max(8.46,21.15,8.46，14.11，31.43， 6.58) = 93.27A（4）1-4號分箱設(shè)備用電負(fù)荷1）塔式起重機(jī)Kx = 0.7，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 50 (0.40 / 0.40)0.5 =50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 50 10

25、00 / (1.732 380 0.65) = 81.81APjs = Kx Pe = 0.70 50=35kWQjs = Pjs tg =435 1.17 = 40.95kvA2）插入式振動器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.5 (0.40 / 0.40)0.5 = 1.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 1.5 1000 / (1.732 380 0.70) = 0.98APjs = Kx

26、Pe = 0.30 1.5 = 0.45kWQjs = Pjs tg = 0.45 1.02 = 0.46kvA3）平板式振動器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.5 (0.40 / 0.40)0.5 = 1.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 1.5 1000 / (1.732 380 0.70) = 0.98APjs = Kx Pe = 0.30 1.5 = 0.45kWQjs = Pjs t

27、g = 0.45 1.02 = 0.46kvA4）空壓機(jī)Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 7.5 (0.40 / 0.40)0.5 = 7.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 7.5 1000 / (1.732 380 0.70) = 4.88APjs = Kx Pe = 0.30 7.5= 2.25kWQjs = Pjs tg = 2.25 1.02 = 1.69kvA5）1-4號分箱計算負(fù)荷用電

28、設(shè)備同期使用系數(shù)Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 60.5 1000 / (1.732 380 0.75) = 98.05A；同時要求分箱用電負(fù)荷不得小于分箱下用電設(shè)備最大計算負(fù)荷的1.1倍，故：Ijs = max98.05,1.1max(81.81,0.98,0.98，4.88) = 98.05A（5）1-5號分箱設(shè)備用電負(fù)荷1）水泵Kx = 0.75，Cos = 0.8，tg = (1 - Cos2)0.5/ Cos = (1 - 0.82)0.5 / 0.8 = 0.75Pe = n P (e/)0.5 = 1.00 5 (0.40

29、/ 0.40)0.5 = 5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.75 5 1000 / (1.732 380 0.80) = 7.83APjs = Kx Pe = 0.75 5 = 3.75kWQjs = Pjs tg = 3.75 0.75 = 2.81kvA2）加壓水泵Kx = 0.75，Cos = 0.8，tg = (1 - Cos2)0.5/ Cos = (1 - 0.82)0.5 / 0.8 = 0.75Pe = n P (e/)0.5 = 1.00 18.5 (0.40 / 0.40)0.5 = 18.5kWIj1 = Kx Pe / (1.732

30、 Ue cos) = 0.75 18.5 1000 / (1.732 380 0.80) = 26.35Pjs = Kx Pe = 0.75 18.5 = 13.87kWQjs = Pjs tg = 13.87 0.75 = 10.4kvA3）水泵Kx = 0.75，Cos = 0.8，tg = (1 - Cos2)0.5/ Cos = (1 - 0.82)0.5 / 0.8 = 0.75Pe = n P (e/)0.5 = 1.00 18.5 (0.40 / 0.40)0.5 = 18.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.75 18.5 1000 / (1

31、.732 380 0.80) = 26.35Pjs = Kx Pe = 0.75 18.5 = 13.87kWQjs = Pjs tg = 13.87 0.75 = 10.4kvA4）1-5號分箱計算負(fù)荷用電設(shè)備同期使用系數(shù)Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 42 1000 / (1.732 380 0.75) = 68.07A；同時要求分箱用電負(fù)荷不得小于分箱下用電設(shè)備最大計算負(fù)荷的1.1倍，故：Ijs = max68.07,1.1max(7.83,26.35,26.35) = 68.07A（6）總箱計算負(fù)荷總的計算負(fù)荷計算，總配電箱用電設(shè)

32、備同期使用系數(shù)取Kx = 0.80總的有功功率： Pjs = KxPjs = 0.80 193.31 = 154,65kW總的無功功率： Qjs = KxQjs = 0.80 182.20 = 145.76kvar總的視在功率： Sjs = (Pjs2 + Qjs2)0.5 = (154.65154.65+145.76145.76)0.5 =360.47kVA總的計算電流計算：Ijs = Sjs 1000 /(1.732 Ue) = 360.47 1000 / (1.732 380) = 554.7A,同時要求總箱下計算負(fù)荷不得小于分箱計算負(fù)荷的1.1倍，故：Ijs = max554.7,1.

33、1max(380.66,155.49,93.27,98.05,68.07) = 554.7A2.1.2 導(dǎo)線及開關(guān)箱內(nèi)電氣設(shè)備選擇統(tǒng)籌考慮，按照最大電流選取二級配電箱進(jìn)線、斷路器，開關(guān)箱進(jìn)線及漏電保護(hù)器。經(jīng)計算，開關(guān)箱進(jìn)線最大電流81.81A，二級箱進(jìn)線最大電流380.66A，則選用開關(guān)箱進(jìn)線：YJV-0.6/1kV-335+216，漏電保護(hù)器：DZ20L-160/4300。二級箱進(jìn)線：1#二級箱VLV-0.6/1kV-4185+195，2#二級箱VLV-0.6/1kV-4150+170，3#二級箱VLV-0.6/1kV-495+150，4#二級箱VLV-0.6/1kV-495+150，5#二

34、級箱VLV-0.6/1kV-450+125，漏電保護(hù)器均為：DZ20L-160/4300。2.1.3 總箱的進(jìn)線、開關(guān)箱內(nèi)電氣設(shè)備及變壓器選擇根據(jù)前面計算的總箱計算負(fù)荷，知：Ijs = 554.7A。選擇電纜YJV-0.6/1kV-3240+2120，安全載流量為960A 554.7A，電纜截面面積為240mm2。按照允許電壓降為5%，導(dǎo)線截面為：S0 = KxPeL0/(C5) = 0.80 490.87 25.00 / (77.00 5.00) = 25.50mm2 240mm2選擇總進(jìn)線開關(guān)：DZ20Y-630/3300，其熔體額定電流為Ir = 630A。符合要求。2.2 2#一級配電

35、箱計算及導(dǎo)線選擇2.2.1 用電負(fù)荷計算（1）2-1號分箱設(shè)備用電負(fù)荷1）塔式起重機(jī)Kx = 0.7，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 50 (0.40 / 0.40)0.5 =50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 50 1000 / (1.732 380 0.65) = 81.81APjs = Kx Pe = 0.70 50=35kWQjs = Pjs tg =435 1.17 = 40.95kvA2）插入式

36、振動器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.5 (0.40 / 0.40)0.5 = 1.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 1.5 1000 / (1.732 380 0.70) = 0.98APjs = Kx Pe = 0.30 1.5 = 0.45kWQjs = Pjs tg = 0.45 1.02 = 0.46kvA3）平板式振動器Kx = 0.3，Cos = 0.7，tg = (1 - C

37、os2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.5 (0.40 / 0.40)0.5 = 1.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 1.5 1000 / (1.732 380 0.70) = 0.98APjs = Kx Pe = 0.30 1.5 = 0.45kWQjs = Pjs tg = 0.45 1.02 = 0.46kvA4）空壓機(jī)Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 =

38、 1.02Pe = n P (e/)0.5 = 1.00 7.5 (0.40 / 0.40)0.5 = 7.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 7.5 1000 / (1.732 380 0.70) = 4.88APjs = Kx Pe = 0.30 7.5= 2.25kWQjs = Pjs tg = 2.25 1.02 = 1.69kvA5）施工電梯Kx = 0.3，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 1.00 66.00 (

39、0.40 / 0.40)0.5 = 66.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 66.00 1000 / (1.732 380 0.60) = 50.14APjs = Kx Pe = 0.30 66.00 = 19.80kWQjs = Pjs tg = 19.80 1.33 = 26.40kvA6）2-1號分箱計算負(fù)荷用電設(shè)備同期使用系數(shù)Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 126.5 1000 / (1.732 380 0.75) = 205.1A；同時要求分箱用電負(fù)荷不得小于分箱下用電設(shè)備最大計算負(fù)

40、荷的1.1倍，故：Ijs = max205.1,1.1max(81.81,0.98,0.98，4.88,50.14) = 205.1A（2）2-2號分箱設(shè)備用電負(fù)荷1）塔式起重機(jī)Kx = 0.7，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 2.00 50 (0.40 / 0.40)0.5 =50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 50 1000 / (1.732 380 0.65) = 81.81APjs = Kx Pe = 0.7

41、0 50=35kWQjs = Pjs tg =435 1.17 = 40.95kvA2）插入式振動器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.5 (0.40 / 0.40)0.5 = 1.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 1.5 1000 / (1.732 380 0.70) = 0.98APjs = Kx Pe = 0.30 1.5 = 0.45kWQjs = Pjs tg = 0.45 1.02

42、= 0.46kvA3）平板式振動器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.5 (0.40 / 0.40)0.5 = 1.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 1.5 1000 / (1.732 380 0.70) = 0.98APjs = Kx Pe = 0.30 1.5 = 0.45kWQjs = Pjs tg = 0.45 1.02 = 0.46kvA4）空壓機(jī)Kx = 0.3，Cos = 0.7，

43、tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 7.5 (0.40 / 0.40)0.5 = 7.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 7.5 1000 / (1.732 380 0.70) = 4.88APjs = Kx Pe = 0.30 7.5= 2.25kWQjs = Pjs tg = 2.25 1.02 = 1.69kvA5）施工電梯Kx = 0.3，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)

44、0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 1.00 66.00 (0.40 / 0.40)0.5 = 66.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 66.00 1000 / (1.732 380 0.60) = 50.14APjs = Kx Pe = 0.30 66.00 = 19.80kWQjs = Pjs tg = 19.80 1.33 = 26.40kvA6）2-2號分箱計算負(fù)荷用電設(shè)備同期使用系數(shù)Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 126.5 1000 / (1.73

45、2 380 0.75) = 205.1A；同時要求分箱用電負(fù)荷不得小于分箱下用電設(shè)備最大計算負(fù)荷的1.1倍，故：Ijs = max205.1,1.1max(81.81,0.98,0.98，4.88,50.14) = 205.1A（3）2-3號分箱設(shè)備用電負(fù)荷1）塔式起重機(jī)Kx = 0.7，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 50 (0.40 / 0.40)0.5 =50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 50 10

46、00 / (1.732 380 0.65) = 81.81APjs = Kx Pe = 0.70 50=35kWQjs = Pjs tg =435 1.17 = 40.95kvA2）插入式振動器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.5 (0.40 / 0.40)0.5 = 1.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 1.5 1000 / (1.732 380 0.70) = 0.98APjs = Kx

47、Pe = 0.30 1.5 = 0.45kWQjs = Pjs tg = 0.45 1.02 = 0.46kvA3）平板式振動器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.5 (0.40 / 0.40)0.5 = 1.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 1.5 1000 / (1.732 380 0.70) = 0.98APjs = Kx Pe = 0.30 1.5 = 0.45kWQjs = Pjs t

48、g = 0.45 1.02 = 0.46kvA4）空壓機(jī)Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 7.5 (0.40 / 0.40)0.5 = 7.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 7.5 1000 / (1.732 380 0.70) = 4.88APjs = Kx Pe = 0.30 7.5= 2.25kWQjs = Pjs tg = 2.25 1.02 = 1.69kvA5）施工電梯Kx = 0.3

49、，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 1.00 66.00 (0.40 / 0.40)0.5 = 66.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 66.00 1000 / (1.732 380 0.60) = 50.14APjs = Kx Pe = 0.30 66.00 = 19.80kWQjs = Pjs tg = 19.80 1.33 = 26.40kvA6）2-3號分箱計算負(fù)荷用電設(shè)備同期使用系數(shù)Kx=0.80；Ijs = K

50、x Pe / (1.732 Ue Cos) = 0.80 126.5 1000 / (1.732 380 0.75) = 205.1A；同時要求分箱用電負(fù)荷不得小于分箱下用電設(shè)備最大計算負(fù)荷的1.1倍，故：Ijs = max205.1,1.1max(81.81,0.98,0.98，4.88,50.14) = 205.1A（4）2-4號分箱設(shè)備用電負(fù)荷1）塔式起重機(jī)Kx = 0.7，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.652)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 50 (0.40 / 0.40)0.5

51、 =50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 50 1000 / (1.732 380 0.65) = 81.81APjs = Kx Pe = 0.70 50=35kWQjs = Pjs tg =435 1.17 = 40.95kvA2）插入式振動器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.5 (0.40 / 0.40)0.5 = 1.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.

52、30 1.5 1000 / (1.732 380 0.70) = 0.98APjs = Kx Pe = 0.30 1.5 = 0.45kWQjs = Pjs tg = 0.45 1.02 = 0.46kvA3）平板式振動器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.5 (0.40 / 0.40)0.5 = 1.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 1.5 1000 / (1.732 380 0.70) =

53、0.98APjs = Kx Pe = 0.30 1.5 = 0.45kWQjs = Pjs tg = 0.45 1.02 = 0.46kvA4）空壓機(jī)Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 7.5 (0.40 / 0.40)0.5 = 7.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 7.5 1000 / (1.732 380 0.70) = 4.88APjs = Kx Pe = 0.30 7.5= 2.25kWQ

54、js = Pjs tg = 2.25 1.02 = 1.69kvA5）施工電梯Kx = 0.3，Cos = 0.6，tg = (1 - Cos2)0.5/ Cos = (1 - 0.62)0.5 / 0.6 = 1.33Pe = n P (e/)0.5 = 1.00 66.00 (0.40 / 0.40)0.5 = 66.00kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 66.00 1000 / (1.732 380 0.60) = 50.14APjs = Kx Pe = 0.30 66.00 = 19.80kWQjs = Pjs tg = 19.80 1.33

55、= 26.40kvA6）2-3號分箱計算負(fù)荷用電設(shè)備同期使用系數(shù)Kx=0.80；Ijs = Kx Pe / (1.732 Ue Cos) = 0.80 126.5 1000 / (1.732 380 0.75) = 205.1A；同時要求分箱用電負(fù)荷不得小于分箱下用電設(shè)備最大計算負(fù)荷的1.1倍，故：Ijs = max205.1,1.1max(81.81,0.98,0.98，4.88,50.14) = 205.1A（5）總箱計算負(fù)荷總的計算負(fù)荷計算，總配電箱用電設(shè)備同期使用系數(shù)取Kx = 0.80總的有功功率： Pjs = KxPjs = 0.80 222.8 = 178.45kW總的無功功率：

56、 Qjs = KxQjs = 0.80 279.84 =223.87kvar總的視在功率： Sjs = (Pjs2 + Qjs2)0.5 = (178.45k 178.45k + 223.87 223.87)0.5 =367.58kVA總的計算電流計算：Ijs = Sjs 1000 /(1.732 Ue) = 367.58 1000 / (1.732 380) = 558.5A,同時要求總箱下計算負(fù)荷不得小于分箱計算負(fù)荷的1.1倍，故：Ijs = max558.5,1.1max(205.1,205.1,205.1205.1) = 558.5A2.2.2 導(dǎo)線及開關(guān)箱內(nèi)電氣設(shè)備選擇統(tǒng)籌考慮，按照

57、最大電流選取二級配電箱進(jìn)線、斷路器，開關(guān)箱進(jìn)線及漏電保護(hù)器。經(jīng)計算，開關(guān)箱進(jìn)線最大電流81.81A，二級箱進(jìn)線最大電流205.1A，則選用開關(guān)箱進(jìn)線：YJV-0.6/1kV-335+216，漏電保護(hù)器：DZ20L-160/4300。二級箱進(jìn)線：1#二級箱VLV-0.6/1kV-4150+170，2#二級箱VLV-0.6/1kV-4150+170，3#二級箱VLV-0.6/1kV-4150+170，4#二級箱VLV-0.6/1kV-4150+170，漏電保護(hù)器均為：DZ20L-160/4300。2.2.3 總箱的進(jìn)線、開關(guān)箱內(nèi)電氣設(shè)備及變壓器選擇根據(jù)前面計算的總箱計算負(fù)荷，知：Ijs =558.

58、5A。選擇電纜YJV-0.6/1kV-3240+2120，安全載流量為960A 558.5A，電纜截面面積為240mm2。按照允許電壓降為5%，導(dǎo)線截面為：S0 = KxPeL0/(C5) = 0.80 490.87 25.00 / (77.00 5.00) = 26.28mm2 240mm2選擇總進(jìn)線開關(guān)：DZ20Y-630/3300，其熔體額定電流為Ir = 630A。符合要求。2.3 3#一級配電箱計算及導(dǎo)線選擇2.3.1 用電負(fù)荷計算（1）3-1號分箱設(shè)備用電負(fù)荷1）塔式起重機(jī)Kx = 0.7，Cos = 0.65，tg = (1 - Cos2)0.5/ Cos = (1 - 0.65

59、2)0.5 / 0.65 = 1.17Pe = n P (e/)0.5 = 1.00 50 (0.40 / 0.40)0.5 =50kWIj1 = Kx Pe / (1.732 Ue cos) = 0.70 50 1000 / (1.732 380 0.65) = 81.81APjs = Kx Pe = 0.70 50=35kWQjs = Pjs tg =435 1.17 = 40.95kvA2）插入式振動器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00

60、 1.5 (0.40 / 0.40)0.5 = 1.5kWIj1 = Kx Pe / (1.732 Ue cos) = 0.30 1.5 1000 / (1.732 380 0.70) = 0.98APjs = Kx Pe = 0.30 1.5 = 0.45kWQjs = Pjs tg = 0.45 1.02 = 0.46kvA3）平板式振動器Kx = 0.3，Cos = 0.7，tg = (1 - Cos2)0.5/ Cos = (1 - 0.72)0.5 / 0.7 = 1.02Pe = n P (e/)0.5 = 1.00 1.5 (0.40 / 0.40)0.5 = 1.5kWIj1