電氣外文文獻(xiàn)及翻譯---高層建筑供配電系統(tǒng)設(shè)計(jì)-管理系統(tǒng)-預(yù)覽頁
【正文】 ery important and plex because there is no clear indicator of the specification can refer to。Power supply system of highrise building design Abstract: With the continuous development of city size, more and more highrise buildings, therefore, highrise building electrical design to the designers had to face. In this paper, an engineering example, describes the electrical design of highrise buildings and some of the more typical issues of universal significance, bined with the actual practice of an engineering solution to the problem described. Key words: highrise building。 load calculation 1 Project Overview The mercial plex project, with a total construction area of 405570m2, on the ground floor area of 272330m2, underground construction area of 133240m2, the main height of 99m. Project ponents are: two office buildings, construction area is 70800m2, 28 layers, the standard story is . 2 Load Calculation 1) Load characteristics: electric load, much larger than the national civil engineering technical measures Large 120W/m2 indicators, especially in the electricity load more food, and different types of food and beverage catering different cultural backgrounds also high. 2) the uncertainty of a large load, because the mercial real estate rents are often based on market demand, and constantly adjust the nature of the shops, making the load in the dynamic changes. 3) There is no specification and technical measures in the different types of mercial projects refer to the detailed parameters of the shops, engineering design load calculation in the lack of data, in most cases to rely on staff with previous experience in engineering design calculations. Load the selection of parameters: for the above problems, the load calculation, the first developer of sales and good munication, to determine the form of layers of the forms and nature of floor area, which is calculated on the basis of electrical load basis。 2 4 transformer substations located, plus 6 sets transformers, take the middle of the power supply, in addition to 5 Taiwan highpressure water chillers (total )。 current transformer for the 1000/50。 BI on behalf of the basement。 關(guān)鍵詞：高層建筑；電氣設(shè)計(jì)；配電；負(fù)荷計(jì)算 1 工程概況 本項(xiàng)目商業(yè)綜合大樓，總建筑面積為 405570m2，地上建筑面積 272330m2，地下建筑面積 133240m2,主體高度 99m。 3）目前的規(guī)范和技術(shù)措施沒有對商業(yè)項(xiàng)目中不同類別商鋪的參數(shù)指進(jìn)行細(xì)化，工程設(shè)計(jì)中的負(fù)荷計(jì)算缺少據(jù)，大多數(shù)情況只能靠設(shè)計(jì)人員憑借以往工程經(jīng)驗(yàn)進(jìn)行計(jì)算。需要探討的是需要系數(shù)的選擇，這在現(xiàn)行規(guī)范、手冊及《統(tǒng)一技術(shù)措施》中也沒有明確的要求，根據(jù)多年的設(shè)計(jì)體會認(rèn)為，在配電最末端商鋪內(nèi)戶箱或?qū)优潆娤溆?jì)算時(shí) Kx 一般取 1，在各回路干線計(jì)算時(shí)取 ～ ，在變電所各配電變壓器計(jì)算時(shí)取 ～ 。 4 較小消防負(fù)荷的供配電 在大型商業(yè)項(xiàng)目設(shè)計(jì)中經(jīng)常會遇到消防用電設(shè)備負(fù)荷較小且分布較分散，若均由變電所饋出，會使得變電所低壓柜饋出很多小電流回路，對斷路器分?jǐn)嗄芰蛯?dǎo)體的動、熱穩(wěn)定帶來一定的影響。 5 斷路器及導(dǎo)體的選擇 由于商業(yè)地產(chǎn)項(xiàng)目房間用途的不確定性，在選擇斷路器和導(dǎo)體時(shí)必須考慮一定的裕量以滿足調(diào)整造成的負(fù)荷變化。例如：某段干線設(shè)備容量 530Kv， Kx取 ，計(jì)算電流為 704A，選擇斷路器框架值為 1000A，整定值為 800A；電流互感器為 1000/50；母線載流量為 1000A，此路最大可滿足1000A 電流的負(fù)荷使用 要求，即便有調(diào)整，配電開關(guān)及線路也可不必作大的變動。 7 公共區(qū)域配電箱的設(shè)置 考慮到商業(yè)的公共區(qū)域?qū)硇枰窝b修，必須預(yù)留電源。 ④ 公共區(qū)域照明的控制，大部分采用兩種方式，即 C—BUS 系統(tǒng)或 BA系統(tǒng)控制，利用 C—BUS 的優(yōu)點(diǎn)是控制比較靈活，可按每一路饋出控制，也可調(diào)光控制；缺點(diǎn)是造價(jià)較高。 用戶配電箱設(shè)計(jì)圖 9 配電柜 /箱與配電回路的編號 大型項(xiàng)目往往低壓配電柜 /箱很多，低壓饋出回路就更多，往往會出現(xiàn)柜 /箱編號及線路編號重復(fù)的問題，造成在設(shè)計(jì)圖中查找及將來維護(hù)檢修的困難。 ③ 區(qū)分負(fù)荷性質(zhì)和類型。地上部分比較復(fù)雜，防火分區(qū)比較多，且上、下層防火分區(qū)不對應(yīng)，按豎井編號較好，如 AL—1—A AP 和 APE 等字母及數(shù)字含義： 1 代表一層； A1 代表 A 號豎井饋出的 1 號配電箱。
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