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1、- PAGE 28 -1工程簡介 General of the project本工程是杭州農藥總廠和AVENTIS公司合資投資的新型農藥廠項目工程,本工程電氣專業(yè)主要范圍是從變電所到車間供配電系統(tǒng),具體可分為動力配電、電氣照明、防雷接地、電信等四大部分。根據該項目的具體特性,部分施工區(qū)域分為防爆、防腐工作環(huán)境。電氣主要工程量如下:電纜橋架1080米,電纜(動力、照明、控制)40000米,配管2800米,照明燈、器具413套,動力盤16塊,照明盤14塊,接地線530米。This project is invested by Hangzhou Pesticide Factory and AVENT
2、IS Company. The electric construction includes power distribution, electric lighting, earthing and communication. According to the specific natures of the project, some construction areas are separated into environments of explosion-proof and anticorrosion. The main capacity of electric construction
3、 are: 1080 meters of cable tray, 40000 meters of cables (power, lighting and control cables), 2800 meters of pipes, 413 sets of light fittings, 16 pieces of power panels, 14 pieces of lighting panels and 530 meters of earth wires.2編制依據 Basis for compilingTECHNIP -天辰設計院提供的電氣技術說明及施工圖。Technique instruc
4、tion and construction drawings supplied by TECHNIP-TIANCHEN design institute.全國通用電氣安裝工程標準圖集90D367、88D263、88D264、86D468、94D164、93D165、96SD469、86D563、876SD566、94X102、86SD169?!癈urrent standard drawings for electric erection engineering” 90D367、88D263、88D264、86D468、94D164、93D165、96SD469、86D563、876SD566、
5、94X102、86SD169.施工規(guī)范及質量評定標準。Construction specifications and quality standards.3施工規(guī)范及質量評定標準 Construction specifications and quality standards電氣安裝工程電氣設備交接試驗標準GB50150-91“Inspection standards for electric equipment” GB50150-91電氣安裝工程電纜線路施工及驗收規(guī)范GB50168-92“Code for construction and acceptance of cable lines
6、” GB50168-92電氣安裝工程接地裝置施工及驗收規(guī)范GB50169-92“Code for construction and acceptance of earthing device” GB50169-92電氣安裝工程旋轉電機施工及驗收規(guī)范GBJ50170-92“Code for construction and acceptance of rotating electric motor” GBJ50170-92電氣安裝工程盤、柜及二次回路結線施工及驗收規(guī)范GB50171-92“Code for construction and acceptance of panel, cabinet
7、 and secondary circuit” GB50171-92電氣安裝工程低壓電器施工及驗收規(guī)范 GB50254-96“Code for construction and acceptance of low voltage apparatus” GB50254-96電氣安裝工程1000V及以下配線工程施工及驗收規(guī)范GB50258-96“Code for construction and acceptance of wiring of 1000v and below” GB50258-96電氣安裝工程電氣照明施工及驗收規(guī)范GB50259-96“Code for construction a
8、nd acceptance of electric lighting” GB50259-96通信工程質量監(jiān)督員手冊“Manual for quality inspector of communication engineering”建筑安裝施工現場供用電安全規(guī)范GB50194-93“Safety rules for power supply in site” GB50194-93工業(yè)安裝工程質量檢驗評定統(tǒng)一標準GB 50252-94“Uniform standards for quality of industrial erection engineering” GB 50252-94(13)
9、石油化工施工安全技術規(guī)程SH3505-1999“Safety rules for construction of petrochemical” SH3505-1999(14)建筑電氣安裝工程質量檢驗評定標準 GB 303-88“Standards for quality of electric erection engineering” GB 303-884主要施工內容 Main construction contents電機查接線及試驗Wiring inspection and test of electric machine成套盤柜安裝及二次回路接線Erection of serial p
10、anels and wiring of secondary circuit低壓電器安裝 Erection of low voltage apparatus電纜橋架安裝Erection of cable tray電纜線路敷設Lay of cables配管及配線Tubing and wiring照明裝置安裝Erection of lighting device通訊施工Construction of communication電氣調整Electric adjustment單體試車Test run of building units5主要施工工藝程序、施工方法與技術 Main construction
11、 technology procedure, construction methods and techniques51施工工藝流程示意圖(見附圖)Construction process flow chart (see the attached diagram)52施工準備 Preparation of construction施工中需用的主要施工機具、試驗設備、標準儀器儀表等準備齊備,提前到場。 The main construction appliances, experimental equipment and standard instruments are complete, an
12、d they reached the site beforehand.設備已到達現場,主材已基本到齊,輔材應能滿足施工進度的需要。Equipment has reached the site, the main materials are almost complete, and the auxiliary materials can meet with the requirements of construction. 對參加施工的人員,進行施工前的圖紙會審、設計交底和安全技術交底。Tell all things about the drawings, designs and safety
13、to the constructors before the construction.設備材料安裝前的檢查驗收 Check and acceptance of the equipment and materials before erection設備到場后,檢查其包裝及密封狀況是否良好,開箱進行外觀檢查,設備外表不得有機械損傷。清點數量與清單是否相符,規(guī)格型號與設計要求是否一致,附件及備件是否齊全,有無產品說明書及技術文件。應填寫設備開箱檢查記錄。After the arrival of the equipment, the packages and sealing should be ch
14、ecked, the equipment should be unpacked, and visual check should be made on it. There shouldnt be any mechanical damages on the surface of equipment. The quantity should be checked according to equipment list, and specification should be checked as per the design. And it should be checked that wheth
15、er the fittings are complete and whether there are instructions and technique documents. At last, the unpacked checking list should be filled.各種材料進庫前,需認真核對規(guī)格型號與設計是否相符,合格證是否有效,并要進行必要的抽查,不合格者拒絕使用。Before the materials are placed into the warehouse, specifications should be checked according to the desi
16、gn, and the certifications should be checked so as to see whether they are efficient. Selective examination should be made, if there are any materials, which are unqualified, they should not be used.室內土建工程包括地面、屋內、墻面、門窗及裝飾工程等施工完畢并應與土建專業(yè)辦理中間交接The civil work indoors, including the floor, roof, walls, d
17、oors, windows and decoration, should be completed. And they should be handed over to us by the civil constructor.工藝設備基本安裝就位,管架安裝基本完畢。Process equipment has been almost erected, and erection of pipe racks have almost been completed.對施工有影響的模板腳、手架已撤除,雜物清理干凈。The templates and scaffolds that may influence
18、 the construction have been dismantled, and the sundries have been cleaned up.會使線路、管路發(fā)生損壞或嚴重污染的建筑物的裝飾工作應全部完工。The decoration work of buildings which may damage or stain the wire lines and pipe lines seriously should be completed absolutely.5.3 防雷、接地 Lightning conduction and earthing接地應按設計圖紙要求,以使接地電阻達
19、到要求。接地體頂面埋設深度-0.8m,與建筑物的距離不應小于3m,暗埋接地線距地表深度為-0.8m。The earthing should be performed according to the design drawings so as to make the earthing resistance comply with the requirements. The ground material should be buried and the top of it should be 0.8m to the ground surface. The space between the g
20、round material and the building should not be less than 3m. And the earth wire buried under the ground should be 0.8m to the ground surface.接地體與接地線之間的連接應采用焊接, 焊接面應牢固。扁鋼與扁鋼焊接應采用搭接焊,搭接長度至少為扁鋼寬度的2.5倍,且至少3邊焊接。The earth wire should be welded to the grounding material. The flat steels should be welded wit
21、h overlap welding. The overlapped length should be at least 2.5 times of the width of the flat steel, and at least 3 edges need to be welded.電機、各種配電、控制盤柜及操作臺的金屬底座和外殼,均要加以接地保護。Electric motors, all kinds of distribution and control panels and cabinets and the metal supports and coating of the control
22、platform should be grounded.電機應用專用接地線(黃綠相間)。The earth wire of electric motor should be special one (with the color of yellow and green).配電、控制盤柜和底座,可通過扁鋼直接與室內接地干線相連。Distribution panels and cabinets, control panels and cabinets and supports of them can be connected with the main earth wire indoors by
23、using the flat steel.各接地連接點應加彈簧墊片,連接緊固可靠。Spring gaskets should be added to the ground points, and the connection should be fastened.電氣裝置每個接地支線應單獨與接地干線相連接,不允許幾個部分串接后與干線相連,接地干線應在不同的地方與接地網可靠連接。Each branch earth wire of electric unit should be separately connected with the main earth wire. They shouldnt
24、 be connected to the main earth wire in series. And the main earth wire should be connected to the earth mat unfailingly.非防爆區(qū)域內穿線管連接處兩端,應焊接跨接線,或用接地線通過接地卡連接。At both ends of conduit in non-explosion proof area, the bridging lines should welded or the earth wires should be connected with clamp.5.4 照明、動
25、力配管 Tubing for lighting and power wires鋼管應按設計要求采用熱鍍鋅管。The steel pipe should be galvanized one as per the design.鋼管加工:采用型材切割機進行切割,用電動套絲機或手動絞扳套絲,管端套絲長度不應小于管接頭長度的1/2。用電動彎管機或手動彎管器彎管。保護管制作后外表應無裂紋,內壁光滑無毛刺無鐵屑,切斷口應挫平,管口應刮光,彎扁度不應大于管外徑的10%。彎曲半徑根據電纜截面型號選擇,一根保護管最多不能超過三個彎頭,垂直彎頭不能超過兩個。明配管彎曲半徑不宜小于管外徑的6倍,當兩個接線盒之間有一
26、個彎曲時,其半徑不應小于管外徑的4倍。暗配時彎曲半徑不應小于管外徑的6倍,當埋于地下或混凝土內時,彎曲半徑不應小于管外徑的10倍。Processing of steel pipe: The pipe should be cut with profiling cut-off machine, and it should be threaded with electric thread machine or manual thread wrench, the length of screw should not be less than 1/2 of the joint. The pipe sho
27、uld be bent with electric bending machine or manual pipe bender. After fabrication, there should not be any cracks on the pipe surface, and there should not be any burrs or iron dust on the inside walls; the fracture should filed and smooth, and the camber should not be more than 10% of the outer di
28、ameter of the pipe. The arch radius should be chosen according to the model of cable section; there should not be more than 3 elbows on one protecting pipe, and there should not be more than 2 vertical elbows. The arch radius of exposed pipe should not be less than 6 times of the outer diameter of p
29、ipe; and when there is a bend between two junction box, the arch radius of the bend should not be less than 4 times of the outer diameter of pipe. The arch radius of hidden pipe should not be less than 6 times of the outer diameter; and when the pipe is buried underground or in concrete, the arch ra
30、dius should not be less than 10 times of the outer diameter.明配管安裝需平直、整齊、牢固,固定點間的距離應均勻,符合規(guī)范要求。保護管直線長度超過30m時需加裝接線盒,同一管線超過兩個直角彎時應加設中間接線盒。鋼管不得直接進入接線盒,應通過防爆接頭連接。The exposed pipe should be level, straight, and it should be erected orderly and hard. The spaces between fixed points should be equal and they
31、should comply with the requirements of specifications. When the linear length of the protecting pipe is over 30m, the junction box should be added; and when there are more than 2 right-angle bends, junction box should be added between them. The steel pipe should not enter the junction box directly,
32、and it should be connected to the box with explosion proof tie-in.鋼管與配電箱連接采用鎖緊螺母或護圈帽固定,用鎖緊螺母固定的管端螺紋宜外露鎖緊螺母23扣。鋼管與電動機、操作箱連接時,應加裝防爆金屬撓性管進行連接,接頭尺寸和螺紋應與電機進線口相吻合。防爆區(qū)域內的鋼管管口應用防爆膠泥封堵。The steel tube should be fastened to the distribution box with locknut or guard ring. Two or three threads at the end of the
33、 pipe which is fastened with locknut should be exposed out of the locknut. When the steel tube is connected with motor or operating cabinet, explosion proof metal flexible tube should be added between them, and the size of the joint and the threads should comply with the service entrance of the elec
34、tric motor. The orifice of the steel tube in explosion proof area should be sealed with explosion proof clay mottar.5.5管內穿線 Wiring through the tubes導線所采用的型號、規(guī)格應符合設計的規(guī)定,配線的布置應符合設計和規(guī)范的要求。如業(yè)主另有要求,應按業(yè)主的要求進行施工。The type and specification of the conduct wire should comply with the design, and the wiring al
35、so should be performed according to the design and specification. If there is special requirement from the owner, the construction should be performed according to the owners requirement.當配線采用多相導線時,其相線的顏色應便于區(qū)分,相線與零線的顏色應不同。同一建筑物、構筑物內的導線,其顏色選擇應統(tǒng)一。保護地線應采用黃綠相間的絕緣導線,零線宜采用淡藍色絕緣導線。When the wires are multip
36、hase conductor, it should be easy for us to distinguish the colors, and the color of phase should be different from that of the zero line. The colors of the conduct wires in one building should be uniform. The protecting earth wires should be insulated conductor with the color of yellow and green, a
37、nd the zero wires should be insulated conductor with the color of sky-blue.管內穿線宜在建筑物抹灰、粉刷及地面工程結束后進行。穿線前,應將電線保護管內的積水及雜物清除干凈。鋼管口應先裝上管螺母,以免穿線時損傷導線絕緣層。不同回路、不同電壓等級和交流與直流的導線,不得穿在同一根管內。同類照明的幾個回路,可穿入同一管內,但導線總數不應多于8根。Wiring through tubes should be performed after the plaster and whitewash of the building and
38、 construction of the floor. And before wiring, the water and other sundries inside the protecting tube should be cleaned up. At first, pipe bolts should be erected at the nozzle so as to prevent the insulation coat of the conductor from being damaged while wiring. The conduct wires of different circ
39、uits and voltage should not be in the same tube, and the wire of alternating current and that of direct current should not be in the same tube either. Several circuits in the same kind of lighting can the lead into one tube, but the total amount of the wires should not be more than 8 sets.導線穿好后,剪除多余
40、的導線,但要留出適當的余量,以便以后接線。預留長度為:接線盒以繞盒內一周為宜;開關板以繞板內半周為宜。After the wires have been threaded through the tubes, the extra wires should be cut off, but suitable length should be left for the connection later. The left length is: to the wires with junction box, it is one circle of the box; and to the wire wi
41、th switch board, it is half circle of the board.管內導線包括絕緣層在內的總面積不應大于管子的內截面的40%。The total area of the wires inside the tube (including the insulation coat) should not be more than 40% of the area of the internal section of the pipe.5.6低壓電器安裝 Erection of low voltage electric apparatus低壓電器安裝前應檢查設備的名牌、型號
42、、規(guī)格應與設計相符,設備的外殼、漆層、手柄,應無損傷或變形,附件應齊全完好。Before the erection of low voltage electric apparatus, the nameplate, model and specification should be checked according to the design, there should not be any damage or distortion on the coat, skin of paint and handle, and the fittings should be complete and p
43、erfect.低壓電器的安裝高度和位置應符合設計及規(guī)范要求,也應滿足現場操作和維護的方便。成排安裝的低壓電器應排列整齊,固定牢靠,緊固件應采用熱鍍鋅件,螺栓規(guī)格應選配適當。電器的固定應牢固平穩(wěn),有防爆要求的電器應裝防爆撓型管。固定低壓電器時不應使電器受額外應力。室外安裝的非防護型低壓電器應有相應的防護措施。The erection height and position of LV electric apparatus should comply with the design and specification, and they also should meet with the requ
44、irements of operation and maintenance. LV electric apparatus installed in row should be arranged orderly and fixed. The fasteners should be galvanized, and the specification of bolts should be suitable. Fastening of the apparatus should be firm and stable, and explosion proof flexible tubes should b
45、e added if necessary. When fastening the apparatus, no extra stress should be added to it. There should be protective precautions for the non-explosion proof LV electric apparatus erected outdoor.電器的金屬外殼框架的接零或接地應符合規(guī)范要求。The connection of zero wires or grounding of the metal frame of the apparatus sho
46、uld comply with the specifications.5.7照明器具安裝 Erection of lighting apparatus安裝前應對所有燈具進行檢查,規(guī)格、型號、防爆要求應符合設計要求,燈具附件應齊全,無機械損傷、變形、油漆脫落、燈罩破損等現象,所有燈具均要進行通電試驗。Before the erection, all light fittings should be checked. Specifications, models and explosion proof natures should comply with the design, light fit
47、tings should be complete, and there should not be any damage, distortion and depainting. All light fittings should be tested with electric.燈具的安裝位置、標高及光源的方向,既要滿足設計要求又要滿足以后照度的需要,燈具安裝嚴格執(zhí)行施工圖紙上的安裝方式,并做到應牢固可靠,用于同一室內或場所成排安裝的燈具應排列整齊其中心線偏差應符合規(guī)范要求。The erection position, level and direction of light fittings
48、should comply with the design and the requirements for light. The erection of light fittings should be performed strictly according to the construction drawings, and it should be firm and stable. A row of light fittings erected in one room or area should be arranged orderly, and the variation of the
49、ir center mark should comply with the specification.燈具不得直接安裝在可燃構件上,當燈具表面高溫部件離可燃物近時應采取隔熱措施,或通過設計單位加以修改。Light fittings should not be directly erected on flammable structural component; and when the hot component on the surface of light fitting is near to the flammable objects, heat insulation measures
50、 should be taken, or the design should be changed.插座和開關的安裝標高應符合設計要求,并列安裝或同一室內安裝的開關和插座距地面的高度應一致,偏差應符合規(guī)范要求?;鹁€應經開關控制,單相三孔插座的接線面對插座應“左零右火上接地”。The erection elevation of the socket and switch should comply with the design. Paratactic switches or switches erected in the same room should be the same distant
51、 to the ground, and the variation should comply with the specification. It is the same to the sockets. The live wires should be controlled with switches; to the one phase three holes sockets, the wires should comply with the rule “zero line is at left, live wire is at right, and the earth wire is co
52、nnected to the upper hole”.照明配電箱安裝應牢固,其偏差應符合規(guī)范要求,箱內應分別設置零線和保護地線匯流排,零線和保護地線應在匯流排上連接。照明配電箱上應標明用電回路編號。The lighting distribution box should be erected firmly, and the variation should comply with the specification. Zero bus and protecting earth bus should be set inside the box, and the zero wires and pr
53、otecting earth wires should be connected to the bus separately. Codes of the circuits should be marked on the lighting distribution boxes.5.8 電纜敷設 Cable layout電纜敷設前應對電纜進行外觀檢查及絕緣電阻試驗,試驗結果應符合規(guī)范要求,電纜的型號規(guī)格應與設計相符,不得有扭絞、損傷。Before layout of cables, visual check should be made on the cables and test of insu
54、lation resistance should be performed. The test result should comply with the specification, and model and specification of cable should accord with the design. There should not be wring and damage on the cables.電纜應按圖紙要求規(guī)定的路徑敷設,敷設時盡量減少交叉,電纜要排列整齊。終端頭、中間接頭處應掛標志牌。The cable should be laid according to t
55、he route specified in drawings. And while laying, there should be as little cross as possible, and the cables should be arranged orderly. Sign boards should be hung at the joints. 電纜在水平橋架內敷設時,在電纜首末兩端戶轉彎處,電纜接頭的兩端處加以固定。電纜間距有要求時,每個5-10米處加以固定。在垂直段的橋架內敷設時,可每間隔2米進行捆扎一次。低壓,動力、控制電纜應分開敷設(如果橋架內有隔板)。When the c
56、ables are laid into the horizontal cable tray, they should be fixed at the corners of two ends of the cables and at both ends of the joints. If there are requirements about the space between cables, they should be fixed every other 510 meters. And when the cables are laid into the vertical cable tra
57、y, they should be banded every other 2 meters. Cables of low voltage, power cables and control cables should be laid separately if there are division boards inside the tray.電纜頭制安應嚴格遵守制作工藝規(guī)程,室外電纜頭制作應在氣候條件良好的情況下進行,剝削電纜時不得傷害電纜芯線,電纜頭制作完畢應檢查電纜的絕緣情況。Fabrication and erection of the cable heads should be pe
58、rformed strictly according to the fabrication process regulations, and outdoor fabrication of cable heads should be performed under good climate conditions. Core of cable should not be damaged while paring the cable. And insulation of cable should be check after the cable head is already fabricated.
59、電纜在橋架內敷設可多根電纜在一起,但穿鋼管敷設時必須一根鋼管穿一根電纜。There can be more than one cable inside the tray, but there should be only one cable inside the tube.5.9電纜橋架的安裝 Erection of cable tray電纜橋架的型號及規(guī)格應符合設計及規(guī)范要求。電纜橋架的安裝高度、水平度、垂直度及電纜橋架的轉彎半徑,應符合設計及規(guī)范要求。電纜橋架的加工應采用等離子切割機或鋼鋸進行切割,不得使用電氣焊,以免損傷電纜橋架表面的防腐層。Specifications and mode
60、ls of cable trays should comply with the design and specifications. And erection height, levelness, uprightness and anchor radius of the tray should also comply with the design and specifications. The cable tray should be processed with isoioair point cut-off machine or steel saw, and it shouldnt be
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