1、 電纜敷設施工方案Construction Scheme for Cable Layout1編制說明及依據1.1編制說明為保證電纜線路安裝工程的施工質量，使電纜敷設得以順利進行，特編寫此方案。此方案適用于10KV及以下塑料絕緣電力電纜、控制電纜線路的敷設施工。12、編制依據承包合同或協議。施工圖及其它設計文件。電氣裝置安裝工程電纜線路施工及驗收規范GB5016992電氣裝置安裝工程電氣設備交接試驗標準GB5016992建筑電氣安裝工程質量檢驗評定標準GB503032002。石、公司質量保證手冊、質量體系程序及其支撐性文件。2、工程概況工程名稱、范圍、地點、規模、特點、主要技術要求、工期要求等。

2、主要實物工作量以設計院的圖紙及現場實際情況計算3、施工程序和施工方法Construction Procedure and Construction Method:3.l、施工程序Construction Procedure電纜出庫工具準備電纜電氣絕緣檢查直溝電纜挖溝橋架配管不合格品標識隔離鋪設施工用設備安裝電纜鋪設隱蔽工程檢查隱蔽工程記錄電纜鋪設記錄電纜溝回填橋架蓋板安裝電纜頭制作絕緣檢查受電交付使用Identifying and separating unsatisfactory productsTools for sending cable out of warehouseElectric

3、 insulation check for cableExcavating trench for direct burying and pipingCheck concealed worksCable layoutLayout equipment installationConcealed recordLayout recordBackfilling trench,Installing cover plateMaking cable ends,Check insulation Running and handover32、施工方法和質量要求Construction Method and Qua

4、lity Requirements (1) 電纜出庫Sending cable out of warehousea、電纜出庫應根據施工圖認真核對需出庫電纜的規格、型號、數量是否符合設計要求，且應標示清楚。電纜盤外觀完整無損，合格證等產品文件齊全。While sending cable out of warehouse, check its specification, type, quantity carefully to verify whether comply with design or not and identify clearly. Appearance of cable dru

5、m is perfect and no damage, certificate and other product files are full. 對由多根電纜纏繞在同一個盤上的電纜盤，應記錄其內外層電纜的長度和纏繞次序，以利于合理安排敷設。For the same cable drum twisted by multi-cables, to facilitate to direct properly layout, the length of inner and outer layer cable and twisted order should be recorded.b、電纜出庫運輸過程

6、中，采用機械吊裝和運輸，嚴禁將電纜盤直接由車上推下，同時電纜盤不應平放運輸和貯存。 During the course of sending cable out of warehouse, follow mechanical hoisting and delivery. No pushing cable drum from truck directly. Meanwhile, cable drum shall not be placed, delivered or stored horizontally.短距離的運輸可采用滾動電纜盤的方法。但必須順著電纜盤上的箭頭指示或纏緊方向滾動。 For

7、short-distance transportation, rolling cable drum is available. However, rolling direction must be consistent with that of arrow indication on drum or cable winding. c、 電纜出庫后應集中分類存放，盡可能存放在開始敷設電纜處的附近。盤間留有通道，存放處不得積水。 After sending cable out of warehouse, store them collectedly and classifiably. Place

8、them as near of the place, where begin to layout cable, as possible. Keep access among cable drums, and no accumulated water at depositing site. (2) 電纜敷設前建筑工程應具備的條件：Prior to layout, civil works shall possess the following terms:a、電纜溝、隧道、豎井、人孔等處的地坪及抹面工作結束。Completion of grade and mortar for cable tren

9、ch, tunnel, well, manhole.b、電纜夾層、電纜溝、橋架內的施工臨時設施模板、建筑廢料已清理干凈。施工用道路暢通蓋板齊全，電纜溝排水暢通，電纜夾層門窗安裝完畢。Temporary boards and waste materials, used for cable interlayer, trench, and tray, have been completely removed. Cover-plates for access road are all ready, and trench drainage is free. Doors and windows on ca

10、ble interlayer have been installed. (3)電纜敷設前電氣專業應具備的條件：a、 電纜的起點及終點設備已安裝完畢，位號標識準確清楚。Having mounted plants at place of cables starting point and end. And their Tag Numbers are identified corrected and clearly.b、 電纜敷設表編制完畢，表冊中應標明每根電纜使用的電纜盤號，敷設的先后次序，Having compiled list of cable layout, in which Drum No

11、. applied by each cable and layout order should be indicated.c、 敷設次序應是先遠距離，后近距離。根據設計和電纜的實際情況，合理安排，避免浪費和接頭。Layout order is from distant to close. According to design and cables real condition, assign reasonably and avoid waste and joint.d技術交底和安全技術交底已做完，并存記錄卡。Having finished technical talk and safety

12、technical talk, and preserved record card.e當電纜沿橋架敷設時，若沒有人行通道應事先沿全長搭設腳手架，綁扎牢固。While layout cable along tray, if nonexistence of sidewalk, set up scaffolding and band tightly along the whole tray in advance.f 輔助材料供貨到位，如電纜扎帶、電纜標牌、電纜標志樁等。Accessory materials, such as cable tie, cable brand and column, ar

13、e ready.電纜的電氣絕緣已檢查，試驗項目包括下列內容：Electric insulation inspection for cable has performed. Including the following test items.測量絕緣電阻，即測量各電纜線芯對地或對金屬屏蔽層和線芯間的絕緣電阻。Measuring insulation resistance.Insulation resistance of each core versus earth, versus metallic shield other core shall be measured.直流耐壓試驗及泄露電流測

14、量（其試驗要求見GB5015091）DC voltage-withstand test and leakage current measurement. Test requirement refer to GB50150-91)a、 敷設電纜使用的電線滑車（滾輪），牽引設備已安裝到位，電纜滑車每3米1個，以電纜不拖地為原則。大規模敷設電纜時，事先應準備好廣播器材，對講機、半導體、喊話器等。 Pulley or roller and draught equipment used for cable layout have been installed. Set a pulley every 3

15、meters. The principal is that cable should not touch ground. When layout cable in force, prepare for broadcast appliances ahead such as talk about, radio, speaker.b、針對敷設電纜時的具體情況，技術人員和施工負責人應編制出勞動力分布圖，指明每個關鍵部位的負責電工及所需人數，責任到人，在技術交底時予以公布。According to local specific condition, prior to layout, technician

16、 and construction header should compile labor distribution chart, point out responsible electrician and necessary number of employee at important place to ensure everyone see his own duty. Above items shall be declared when executing technical talk. (4)、橋架內電纜敷設Layout cable inside tray.a安裝質量要求 Instal

17、lation quality requirements: 電纜的最小彎曲半徑應符合GB50168一92的規定，即：The minimum bending radius should conform to Norm of GB50168-92.多芯控制電纜 10D聚氯乙烯絕緣電力電纜 10D聚氯乙烯絕緣電力電線多芯 15D交聯聚乙烯絕緣電力電線單芯 20D注D為電纜外徑。Multi-core control cable 10DPVC insulated power cable 10DPVC insulated multi-core power cable 15DLinking PVC insul

18、ated one-core power cable 20DNote: D is outer diameter.電纜的固定要求：橋架上垂直敷設每隔2m處，水平敷設的電纜首末兩端及轉彎、電纜接頭兩端處應加以固定， Requirements for fastening cable:Fix cable every 2 meters when laying cable vertically. For horizontal layout cable, fixing it at the beginning and end, two sides of corner and joint.交流系統的單芯電纜應使固

19、定夾具不構成閉合磁絡，且按正三角形排列，每隔1m用綁帶扎牢。For AC one-core cable, fixing it with special clamp not to form closed magnetic loop and arraying it in form of pure triangle. Banding tightly every 1 meter.橋架上交流三芯電力電線不宜超過2層控制電纜不宜超過三層。AC multi-core power cable should be not beyond 2 layers, and control cable no more th

20、an 3 layers.電纜的排列：高低壓電力電纜、強電弱電控制電纜應按順序分層配置，高壓與低壓增加隔板。Arraying order of cable: Place high and lower voltage power cable, intensive and faint control cable in layer and in sequence. Add partition between high and lower voltage power cable.b、敷設方法 Layout method: 電纜應從電纜盤上部引出，同時檢查是否有套扣現象，將寫好的電纜編號交專人負責貼在電纜

21、首末端。Pulling cable from the upper direction of drum. Meanwhile, checking whether existence of cable-wring or not. Make special employee to stick prepared cable number on both ends of cable. 橋架上所有電纜全部敷設完畢，即時安裝蓋板，達到防護的目的。After completion of all cable layout inside tray, installing covers timely to prot

22、ect.(5)、地埋電纜的敷設方法及質量要求Layout method and quality requirements for buried cable under ground:a、質量要求：Quality Requirements:電纜上表面距地坪面不小于07m。0.7m is the least distance from the upper side of cable to grade.電纜上邊及下邊應復以100mm的軟土或沙層，并蓋上紅磚或混凝土板。Fill 100mm thickness soft earth or fine sand around cable up and do

23、wn, and cover red brick or concrete plate. 電纜之間、電纜與其它管道、道路、建筑物等之間平行和交叉時的最小凈距應符合GB5016892的表543的要求。When existing parallel or crossing between cable and cable, cable and other pipes, roads, or architectures, the minimum distance should conform to Table of 5.4.3 in GB50168-92.嚴禁將電纜平行敷設于管道的上方或下方。No layin

24、g cable over and under pipes in parallel過路保護管伸出道路路基兩邊各2m伸出排水溝0.5m。While protection pipe spreading road base, 2m should be left each side of base and 0.5m is required while spreading drainage直埋電纜在直線段每隔50100m處或電纜接頭處、轉彎處、進人建筑物處應設置明顯的標樁。. Setting identical columns for direct buried cable at the straight

25、 line each 50-100m, at joint or swerving place and at entrance to architecture. 電纜的彎曲電纜應符合要求。Cable bending should conform to requirementb、敷設方法 Layout method:估工估料：大型的電纜敷設應做這項工作，在詳細研究工程設計書后，到現場勘察線路地形并了解情況，然后制訂出技術措施和安全措施，并核對設計用料是否正確，根據工程情況決定敷設方式，是采用人工敷設，還是采用機械化敷設。Estimate works quantity and necessary m

26、aterials: It is required to lay large-sized cables. After studying design documents for engineering detailed, go to local field to explore lines landform and learn real environment. And then, write out technical and safety measures and check whether design materials are correct or not. According to

27、engineering condition, decide layout method: by manpower layout or machine layout材料、工具準備：敷設電纜所需的機具設備，如卷揚機、鋼絲網套、千斤頂、滑輪以及鐵鍬等都應需要事先備好。電纜及保護蓋板等材料，最好按施工計劃日期直接發運到施工現場，以節約人工費用。Prepare for materials and tools: Machines and tools needed for laying cable should be all ready in advance, such as hoist, steel-wi

28、re net, jack, rolling wheel and shovel. To economize lab our cost, we had better to deliver directly cable and cover plate to site in reference to construction plan date.對外聯系工作：敷設電纜線路影響到農田、園林、公共道路、市區交通等情況應事先與農村政府、園林部門、鐵路局、交通隊等聯系，辦妥有關手續后方可施工。決定電纜中間接頭的位置。當電纜線絡較長有中間接頭的情況下，要事先選擇合適的接頭位置，因中間接頭故障率較電纜本體為多，因

29、此要考慮檢修問題，故不要將位置選擇在道路交叉口，或與其它地下管線交叉的地方。在設計的電纜線絡上開挖試探樣洞，其主要目的是調查土壤及地下管線布置情況，深度1m。In order to study soil and distribution of underground pipelines, excavate exploring sample holes, 1m in depth, along the designed cable line.放樣：根據設計圖和土層調查情況，用石灰粉畫出挖土范圍Performing sample:On the basis of design drawings and

30、 soil terms, drawing out excavation region with lime powder敷設過路保護管，可采用不開挖路面的頂管方法，如果有困難應按路寬分半施工，必要時夜間施工。. When laying protective pipe through road, pushing pipe with jack is available instead of excavating ground. If it is difficult to construct, doing it on base of half of road width. If necessary,

31、constructing at night.挖土：施工地點周圍應設置警告標志，挖出的泥土應放置在溝邊03m以外，電纜溝的挖掘還必須保證電纜敷設后的彎曲半徑不小于規定值，寬度、深度按設計要求開挖。Excavating:Placing warning symbols around construction location. Excavated soil should be piled and more than 0.3m is required away trenchs edge. In addition, excavation must ensure bending radius of cab

32、le is no less than regulated value. Width and depth for excavation should conform to design.敷設電纜準備工作。敷設前應整理土溝，將溝內石子或其他雜物清除，然后在溝中放置滑輪，每3m一個，轉角處加放轉角滑輪，保護電纜的蓋板沿開挖的電纜溝分放好。同時將電纜推滾到所需位置架設好。Preparation for direct buried cable layout:Before layout, clean inner stones or other waste things up and mend trench

33、, then place pulley into trench every 3m, and add corner pulley at the corner. Set cover plate along excavated cable trench, roll cable drum to proper location and put it onto rack.當敷設大截面和較長電纜時可采用卷揚機等機械化方法（長沙及武漢電纜附件廠有成套設備）敷設。敷設時拖拽電纜可用特制的鋼絲網套套在電纜端頭上。機械化敷設電纜有以下要求：While laying large cross sectional are

34、a and longer cable, following mechanization method such as hoist is available (Changsha and Wuhan cable accessory factory possess sets of equipments). Dragging cable with special making steel wire net tied at the beginning of cable. Note the following requirements when adopting mechanization method:

35、電纜最大牽引強度（N/mm2）牽引方法牽引頭鋼絲網套受力部位銅芯鋁芯鉛套鉛套塑料護套允許牽引強度704010407 Max. Draught Stress of Cable (N/mm2)Draught MethodDraught EndSteel Wire Net and SheathPressurized sectionCopper coreAluminumcoreLead SheathLeadSheathPlastic SheathAllowable stress degree704010407另外，速度不宜超過15m/min，應在牽引頭或鋼絲網套與牽引鋼纜之間裝設防捻器。 Whats

36、more, layout speed should not surpass 15 m/min., splice-proof shall be set between draught head or steel wire net and draught cable.施放電纜時無論在任何情況下，都不能讓電纜在地上拖拉，電纜到位后，可逐段將電纜提起，移去滑輪，并將電纜放在溝底，在電纜需做中間頭的地方，要留有余度，在敷設過程要統一指揮，互通信息。When laying cable, no dragging cable along ground in no case. After cable reach

37、 its position, lift it step by step, remove pulley, and then put it at the bottom of trench. Leave spare length at the place of middle joint.電纜敷設完畢，請甲方及監理驗收隱蔽工程，技術人員做好敷設記錄。然后回填，應分層夯實，安裝電纜標樁。In one word, during the course of cable layout, direct unanimously and communicate each other. After completio

38、n of cable layout, invite client and supervisor to accept concealed works. Meanwhile, technicians should finish layout recorder. Then, backfill and tamp trench learnedly. Install cable identification column.(6)、敷設電纜時，電纜允許敷設最低溫度，在敷設前24h內的平均溫度，以及敷設現場的溫度不應低于以下規定，但溫度低于以下規定時應采取措施。Temperature requirements

39、:While laying cable, the lowest allowable layout temperature, average temperature of 24 hours prior to layout and site temperature should be no lower than following regulations. Take some measures when temperature is lower than that of regulation.電纜允許敷設最低溫度（摘自GB5016892）電纜類型電纜結構允許鋪設最底溫度（）塑料絕緣電力電纜0控制電

40、纜聚氯乙烯絕緣聚氯乙烯護套-10Lowe rest. temp. for allowable cable layout (GB50168-92)Type of cableStructure of cableLowe rest temp. for layout()Plastic insulated power cable0Control CablePVC insulated PVC sheath-104、安全技術措施現場工作人員必須按規定穿工作服進人現場必須戴好安全帽，高空作業系掛安全帶，辦理高空作業證。電纜運輸裝卸，腳手架搭設應有專業起重工作業指揮。電纜盤的架設應水平穩固，電纜盤引出電纜側不應站人，防止傾倒傷人。電纜敷設時，在電纜轉角的內側不得站人，以防擠傷，或采取妥善的防護措施，在橋架上敷設電纜時應有防止電纜因一點滑落掉地而引起全段滑落的措施。滾動電纜盤時，防止電纜盤碾傷人的腳部。廠房內，管廊架上敷設電纜，所有設備孔、予留孔應加蓋板，無欄桿的地方加安全網。在較封閉的場所敷設電纜，其照明通風應符合要求。防火防爆：a、敷設電纜時，作業上方不應有電氣焊施焊，以免損壞電纜。b、在易燃易爆場所附近施工，應嚴禁吸煙和使用明火，所用的工具器材應符合安全規定的要求