北京世紀(jì)春天花園小區(qū)11、12、15、16樓臨時用水、電施工.doc

1、編制依據(jù)
1.1北京世紀(jì)春天施工總平面圖(2002-0806-06)
1.2《施工現(xiàn)場臨時用電安全技術(shù)規(guī)范》(JGJ46-88)
1.3《北京市建筑工程施工安全操作規(guī)程》(DBJ01-62-2002 )
1.4《環(huán)境與職業(yè)健康安全手冊》(CSCEC105-SC-02)
2、工程概況
北京世紀(jì)春天花園小區(qū)11、12、15、16#樓，位于北京市朝陽區(qū)望京新城，由北京世紀(jì)春天房地產(chǎn)開發(fā)公司投資建設(shè)，北京中天元設(shè)計有限責(zé)任公司設(shè)計，中環(huán)監(jiān)理公司監(jiān)理。
根據(jù)施工現(xiàn)場用電情況和用電設(shè)備的數(shù)量經(jīng)與甲方協(xié)商，11、12#樓由一期低壓配電室引來，15、16號樓由二期新建變壓器室的低壓配電柜引來。。由于變壓器的位置與用電設(shè)備距離較遠(yuǎn)，施工設(shè)備比較分散，供電線路采用沿墻架設(shè)和地埋，同時施工現(xiàn)場的地理位置遠(yuǎn)離市區(qū)，周圍無其他外線，地下沒有外部電纜，因此安全距離符合規(guī)范要求。
施工現(xiàn)場配電室設(shè)2個A級配電箱，一個由一期變壓器直接供電，另一個由二期變壓器供電：AP-1供11、12#樓塔吊、砼泵、鋼筋加工廠、木工車間等；AP-2供15、16號樓塔吊、砼泵、鋼筋加工廠、木工車間、工人宿舍等用。
3、臨電設(shè)計說明
3.1初步設(shè)計
由變壓器直接供電給施工現(xiàn)場配電室，施工現(xiàn)場用電設(shè)備實行三級配電兩級保護(hù)。根據(jù)施工現(xiàn)場臨時用電“安全技術(shù)規(guī)范JG46-88”供電方式符合規(guī)范要求。
供電系統(tǒng)采用三相五線制TN-S供電系統(tǒng)，即工作零線N和
1, prepared according to
1.1 Beijing Century Spring Construction Map (2002-0806-06)
1.2 "Construction Site Temporary Electrical Safety Specifications" (JGJ46-88)
1.3 "Beijing Building Construction Safety Operation" (DBJ01-62-2002)
1.4 "Environmental and Occupational Health and Safety Manual" (CSCEC105-SC-02)
2, Project Overview
Beijing Century Spring Garden District 11,12,15,16 # Building, located in Chaoyang District, New Town, by the spring of Beijing Century Real Estate Development companies to invest in building design of Beijing Tianyuan Co., Ltd design, supervision of the Central Project Management Company.
According to the construction site electricity consumption and the amount of electrical equipment in consultation with the Party, 11,12 # floor from the room drew a low-voltage distribution, 15,16 the new building by the two low-voltage distribution transformer room cabinet cited years. . The transformer location and distance electrical equipment, construction equipment more decentralized, power transmission lines along the wall erected and buried, while the construction site's location away from urban areas, around no other outside, no external cables underground, so with the required safety distance.
Construction Site Power Distribution Room located two A-distribution box, a direct power supply from the one transformer, and the other by the two transformers supply: AP-1 for the 11,12 # floor tower crane, concrete pump, steel processing plants, carpentry shop, etc.; AP-2 for 15,16 Building tower crane, concrete pump, steel processing plant, a carpentry workshop, workers quarters use.
3, temporary electrical design specifications
3.1 Preliminary Design
Direct power supply from the transformer to the construction site power distribution room, electrical equipment on site to protect a three-level power distribution levels. According to the construction site of the temporary use of electricity "security specification JG46-88" power supply to meet the specification.
Power supply system using three-phase five-wire TN-S power supply system, that is, N and the zero line of work
 

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