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電氣工程ElectricWorks一、工藝流程圖TechnologicalprocessDiagraminstallationpreparationinstallationpreparationpipeinteriorwirelayinginstrumentinstallationcablelayingequipmentinstallationdebuggingnakedpipeinstallationcoveredpipeinstallationtraywirefillisterlightning-protectionearthengineeringsealedbus-bararrangement施工準(zhǔn)備施工準(zhǔn)備管路明敷管路暗敷管內(nèi)穿線器具安裝電纜敷設(shè)設(shè)備安裝線槽安裝防雷與接地施工調(diào)試母線安裝二、電氣安裝質(zhì)量控制點(diǎn)及控制措施QualityControlPointandControlMeasureonElectricInstallation分項(xiàng)工程Sub—item質(zhì)量控制點(diǎn)QualityControlPoint質(zhì)量控制措施QualityControlMeasure備注Remark施工準(zhǔn)備ConstructionPreparation材料計(jì)劃、材料送審、施工方案Materialplan,materialreviewandapproval,andconstructionprogram認(rèn)真編制Workoutcarefully明管安裝Open–pipeinstallation位置、標(biāo)高正確、接地良好Thepositionandelevationarecorrect,andthegroundingisgood繪制綜合圖及管路接地大樣圖Drawintegrateddrawinganddetailofpipelinegrounding橋架線槽安裝Installationoncranespanstructureslot標(biāo)高準(zhǔn)確、吊架安裝、穿墻、樓板的防火處理、與其它專業(yè)管道的間距Correctlevel,installationonhangerframe,fireprotectiontreatmentofthrough-wallandfloor,clearancewithotherspecialpipeline繪制綜合圖、吊架安裝圖、防火處理大樣圖Drawintegrateddrawing,installationdrawingofhangerframe,anddetailoffireprotectiontreatment穿線配線Threadingdistribution接線正誤、導(dǎo)線涮錫、導(dǎo)線損傷Wiringcorrecterror,conductingwirewithrinsingtin,conductingwirewithdamage嚴(yán)格執(zhí)行接線圖、涮錫穿線時(shí)注意保護(hù)導(dǎo)線Strictlycarryoutwiringdrawing,rinsingtin,payattentiontoprotectingthewirewhenthreading電纜敷設(shè)Cablelay電纜平直、固定牢固、電纜彎扁度、標(biāo)識(shí)Straightcable,firmfixing,cablebending,andidentification落實(shí)圖紙、規(guī)范相關(guān)要求Implementrequirementsrelatingtodrawingandspecification焊接點(diǎn)Soldereddot焊接部位的接地電阻、焊點(diǎn)表面光滑飽滿Groundresistanceatweldedposition,andthesurfaceatweldedpointissmoothandfull焊接完成后測試焊接部位的接地電阻Testthegroundresistanceofweldedpositionafterfinishingthewelding。器具安裝Applianceinstallation位置正確、安裝牢固、觀感良好Thepositioniscorrectandinstalledfirmly,theappearanceisgood.按繪制的機(jī)電綜合圖、表面器具布置平面圖安裝Arrangetheplaninstallationaccordingtoelectromechanicaldrawnintegrationdiagramandsurfaceappliance調(diào)試Debugging系統(tǒng)運(yùn)行的穩(wěn)定性、運(yùn)行的可靠性、絕緣搖測Operatingstability,reliability,andinsulatingshake—measureinsystem制訂專項(xiàng)調(diào)試方案Workoutthespecialdebuggingplan三、關(guān)鍵工序技術(shù)及質(zhì)量控制保證措KeyWorkingProcedureandQualityControlGuaranteeMeasure1、鍍鋅鋼管明敷設(shè)OpenLayofGalvanizedSteelPipe本工程明敷設(shè)鋼管均采用了鍍鋅鋼管明敷設(shè)工藝。Allopen-laysteelpipesintheprojectadopttheopen-laytechnologyofgalvanizedsteelpipe。(1)工藝流程Technologicalprocess:ConstructionpreparationSuspenderandConstructionpreparationSuspenderandsiphonprefabricatedThepositionofthemensurationboxandrootSuspenderfixationBoxfixationPipelinelayoutSlotdealingGroundline施工準(zhǔn)備支吊架、彎管預(yù)制測定盒箱及固定點(diǎn)位置支吊架固定盒箱固定管路敷設(shè)沉降縫處理跨接地線(2)可上人的吊頂內(nèi)以及不封閉式豎井通道內(nèi)的配管為明配管,其管路走向及支架固定均應(yīng)按明配管要求施工。Thedistributingpipeinsuspendedceilingsthatcanbeenteredintoandshaftpassagesthatarenotclosedisopen.Bothitspipelinedirectionandsupportfixtureshouldconstructaccordingtorequirementsofopendistributingpipes。(3)按設(shè)計(jì)要求用冷煨法把管子煨出所需的彎度,20mm以下管徑的管子用手板煨管器,25mm以上管徑用液壓煨管器(或?qū)S渺泄芷?,煨彎處凹扁度應(yīng)符合規(guī)范規(guī)定。Usethesimmeringmethodtosimmerpipeswithanecessarybendaccordingtodesignrequirements。Pipesthatthepipediameterislessthan20mmmayadoptapalmsimmerpipemachine。Pipesthatthepipediameterismorethan25mmmayuseahydraulicsimmerpipemachine(orspecialsimmerpipemachine).Theconcavityatsimmeringbendsshouldaccordwithspecificationsandregulations.(4)斷管采用鋼鋸或無齒鋸,需斷切的管子尺寸準(zhǔn)確,將管子置于壓力鉗口中心卡緊,斷口平齊.斷口處用銼將管口內(nèi)外銼光,無毛刺,管內(nèi)鐵屑清除干凈.Brokenpipesadoptahacksaworasawwithoutteeth。Thesizeofpipeneedingtocutshouldbeexact.Putpipesonthecenterofpressurejaw,andkeepfractureseven.Atfracture,filltheinnerorouterofpipeorificesmoothlywithoutanyburr。Thescrapironinpipeshouldbecleanedclearly。(5)管子套絲采用套絲機(jī),根據(jù)管子外徑及扣距選用相應(yīng)板牙,將管子用臺(tái)虎鉗或龍門壓架鉗緊牢固,再把絞板套在管端,均勻用力,不得過猛,隨套隨澆冷卻液。絲扣不亂且干凈清晰,管箍上好后,管口應(yīng)對(duì)嚴(yán),外露絲扣不應(yīng)過長。(外露絲扣不得超過3扣)Themantlefiberofpipemayadoptamentalfibermachine。Selectcorrespondingdiesaccordingtotheouterdiameterandofpipethepitch。Clampthepipesfirmlybyusingaviceorplanerpressingpliers。Thencoverthecapstanonpipeends.Exertevenlynottoostrongly,andpourthecoolingfluidonitwhilecovering.Theclaspisnotindisorderandcleanedclearly。Afterpipesarehopedwell,pipeorificesshouldbeaimedataccurately。Andtheexposedclaspshouldnotbetoolong。(6)鍍鋅鋼管必須采用通絲管箍連接。不得采用熔焊跨接地線,應(yīng)在連接處的兩端用專用接地卡固定跨接接地線,(鍍鋅鋼管絲扣連接也可以直接用導(dǎo)電膏不采用跨接)如下圖所示:Galvanizedsteelpipesmustadoptharnesscordpipehoopstoconnect。Donotadoptfusion—weldingbridgegroundwires.Usethespecialgroundcardattwoendsofjointstofixandbridgethegroundwires。Theconnectionofgalvanizedsteelpipesisshowninthefollowingfigure。鍍鋅鋼管連接方法ConnectiononGalvanizedSteelPipe符號(hào)說明:SymbolExplanation1—鍍鋅鋼管Galvanizedsteelpipe2—接地卡Groundcard3-接地線Groundwire4—通絲管箍Harness—cordpipehoop(7)嚴(yán)格按圖紙要求敷設(shè)管線,坐標(biāo)與標(biāo)高準(zhǔn)確,固定牢固.管路敷設(shè)按規(guī)范要求加裝接線盒,管箍連接處采用專用接地線卡跨接地線,線管進(jìn)入盒、箱處,按設(shè)計(jì)要求預(yù)留孔、洞,待穩(wěn)住盒、箱后再進(jìn)行下道工序,需加裝護(hù)口處應(yīng)及時(shí)加裝護(hù)口。Laypipelinesstrictlyaccordingtorequirementsindrawing.Bothcoordinatesandlevelsareaccurateandthepipelinesshouldbefixedfirmly。Thepipelayisaskedtoaddaterminalboxaccordingtospecificationrequirements。Thejointofpipehoopadoptsspecialgroundwirecardstobridgethegroundwire。Spoolsareputintoboxes。Andholesandorificesareaskedtopre—leaveaccordingtodesignrequirements.Onlyafterboxeshavebeenstable,carryoutthenextworkingprocedure。Aprotectiveorificeshouldbeaddedintimeatthepositionthatneedstoadd.(8)鋼管沿墻過沉降縫敷設(shè),按照下圖進(jìn)行敷設(shè):Laysteelpipesthroughsettlementjointsalongwithwall,andcarryoutlayingaccordingtothefollowingfigure.鍍鋅鋼管明配過沉降縫安裝方法InstallingMethodofGalvanizedSteelPipeopenlyLayingSettlementJoints符號(hào)說明:SymbolExplanation1—預(yù)埋接線盒Built—interminalbox2-伸縮縫Expansionjoint3-接地線Groundwire4-金屬軟管Metalhose5—錫焊Soldering(9)管路固定及接地線做法詳見下圖:Pipelinefixtureandgroundwireareshowninthefollowingfigure.管路固定及接地線做法PipelineFixtureandGroundWire符號(hào)說明:SymbolExplanation:1-鍍鋅鋼管Galvanizedsteelpipe2-接地卡Groundcard3—跨接地線Bridgegroundwire4—過路盒Passingbox5-接地線固定螺絲Fixedscrewingroundwire6-通絲管箍Harnesscordpipehoop(10)管路過梁做法詳見下圖Thepipelineastillenisshownasinthefollowingfigure:管路過梁做法PipelineAstillen符號(hào)說明:SymbolExplanation1-塑料脹栓Plasticexpandingbolt2-自攻螺釘Self—tappingbolt3-離墻管卡Wall—awaypipestrap4-鍍鋅鋼管Galvanizedsteelpipe5-接地管卡Groundpipestrap6—接地線Groundwire7—管接頭Unionjoint8—過路盒Passingbox2、管內(nèi)穿線In-pipeThreading(1)工藝流程TechnologicalProcess:選擇導(dǎo)線選擇導(dǎo)線穿帶線掃管放線及斷線導(dǎo)線與帶線綁扎戴護(hù)口穿線導(dǎo)線接頭線路檢查絕緣搖測LeadselectionLeadselectionLinestringTubeclearingLinepullingandcuttingColligationoftheleadandlineProtectionmouthwearingWiringLeadtie-inLinecheckingandinsulationtesting(2)選擇導(dǎo)線SelectConductingWires:1)根據(jù)設(shè)計(jì)要求選擇導(dǎo)線規(guī)格及型號(hào).Selectthespecificationandmodelofconductingwireaccordingtodesignrequirements。2)絕緣層抽檢:按制造標(biāo)準(zhǔn),現(xiàn)場抽樣檢測絕緣層厚度和圓形線芯的直徑,線芯直徑誤差不大于標(biāo)稱直徑的1%;常用的BV型絕緣電線的絕緣層厚度不小于下表規(guī)定。Samplingcheckoninsulatinglayer:sampletocheckthethicknessofinsulatinglayerandthediameterofroundwirecoreatthespotaccordingtomanufacturingstandards.Theerrorofwirecoreshouldnotbemorethan1%oftheequivalentdiameter.ThethicknessofinsulatinglayerinnormalBVinsulatedwiresshouldnotbelessthantheregulationsinthefollowingtable。SerialNo.12345678910芯線標(biāo)稱截面積(mm2)Nominalcross-sectionareaofcore(mm2)1。52。546101625355070絕緣層厚度規(guī)定值(mm)Specifiedvalueofthicknessoninsulatinglayer0。70.80。80.81.01.01。21。21。41.4(3)穿帶線:穿帶線也是檢查管路是否暢通,管路的走向及盒、箱的位置是否符合設(shè)計(jì)及施工圖的要求。Strip:thestripisalsooneofrequirementstocheckwhetherthepipelineisdredgedaswhileasthedirectionofpipelineandthepositionofboxaccordwithdesignsandconstructiondrawings。(4)清掃管路PipelineCleaning:1)清掃管路的目的是清除管路中的灰塵、泥水等雜物.Theaimofpipelinecleaningistoeliminatemessessuchasdustandsediment.2)清掃管路的方法:將布條的兩端牢固地綁扎在帶線上,兩人來回拉動(dòng)帶線,將管內(nèi)雜物清凈。Themethodofpipelinecleaningisasfollowing:bindthetwoendsofclothonastripline,twopersonnelpullthestriplinebackandforthandcleanthemessinpipe.(5)放線與斷線Paying—offandWireBreakage:1)放線:放線時(shí)導(dǎo)線應(yīng)置于放線架或放線車上。Paying-off:Whenpayingoff,theconductivewireshouldbeplacedonpaying—offsupportsorvehicles。2)斷線:剪斷導(dǎo)線時(shí),導(dǎo)線的預(yù)留長度應(yīng)按以下四種情況考慮:Wirebreakage:Whencutoff,thepre—leftlengthofconductivewireshouldbeconsideredaccordingtofoursituationsasfollowing.A、接線盒、開關(guān)盒及燈頭盒內(nèi)導(dǎo)線的預(yù)留長度應(yīng)為15cm。Thepre-leftlengthofconductivewireinterminalbox,switchbox,andlamp-holderboxshouldbe15cm.B、配電箱內(nèi)導(dǎo)線的預(yù)留長度應(yīng)為配電箱體周長的1/2。Thepre-leftlengthofconductingwireindistributionboxshouldbe1/2circumferenceofdistributionbox.C、出戶導(dǎo)線的預(yù)留長度應(yīng)為1.5m。Thepre—leftlengthofoutputconductingwireshouldbe1.5m.D、共用導(dǎo)線在分支處,可不剪斷導(dǎo)線而直接穿過.Atthebranchofcommonconductingwires,theconductingwiremaynotbecutofftopassthroughdirectly。(6)管內(nèi)穿線ThreadinginPipe:1)鋼管(電線管)在穿線前,應(yīng)首先檢查各個(gè)管口的護(hù)口是否齊整,如有遺漏或破損,均應(yīng)補(bǔ)齊更換。Beforethreadingthesteelpipe(wirepipe),firstlycheckwhethershieldsateverypipeorificeareingoodorder.Ifthereissomeleakageordamage,allofthemshouldbesupplementedandreplaced。2)當(dāng)管路較長或轉(zhuǎn)彎較多時(shí),要在穿線的同時(shí)往管內(nèi)吹入適量的滑石粉.Ifthepipelineislongerortherearemoreswerves,inbreathesomesuitabletalcinthepipewhilethreading。3)兩人穿線時(shí),應(yīng)配合協(xié)調(diào),一拉一送。Whenthreading,bothpersonnelshouldcoordinateharmoniously,onepullsandtheotherreleases。(7)導(dǎo)線連接WireConnection:1)單芯線并接頭:導(dǎo)線并齊合攏。在距約12mm處用其中一根線芯在連接端纏繞5-7圈后剪斷,把余頭并齊折回壓在纏繞線上進(jìn)行涮錫處理。Singlecorewithparalleljoint:conductingwiresarecombinedandgatheredup.At12mmtoit,useawirecorewinding5~7circlesatthejointandthencutoff.Combinetherestandfoldthematthewindwiretocarryoutthetreatmentofrinsingtin。2)不同直徑導(dǎo)線接頭:如果是獨(dú)根(導(dǎo)線截面小于2。5mm2)或多芯軟線時(shí),則應(yīng)先進(jìn)行涮錫處理。再將細(xì)線在粗線上距離絕緣層15mm處交叉,并將線端部向粗導(dǎo)線(獨(dú)根)端纏繞5-7圈,將粗導(dǎo)線端折回壓在細(xì)線上,最后再做涮錫處理。Wirejointswithdifferentdiameter:ifasinglecord(thecrosssectionofwireislessthan2.5mm2)oramultiplecord,firstlycarryoutthetreatmentofrinsingtin。Then,crossthefilamentattheheavygaugewireat15mmawayfromtheinsulatinglayer,andwindtheendofwiretowardstheendofheavygaugewire(single)for5~7circles,foldtheendofheavygaugewirebacktopressonthefilament,andfinallydothetreatmentofrinsingtin.(8)導(dǎo)線包扎BindingupConductingWire:首先用橡膠(或粘塑料)絕緣帶從導(dǎo)線接頭處始端的完好絕緣層開始,在包扎過程中應(yīng)盡可能的收緊絕緣帶。采用橡膠絕緣帶包扎時(shí),應(yīng)將其拉長2倍后再進(jìn)行纏繞.然后再用黑膠布包扎,導(dǎo)線接頭處兩端應(yīng)用黑膠布封嚴(yán)密。Firstly,usearubber(orviscousplastic)insulatedtapetobeginfromtheintactinsulatinglayeratthebeginningofwirejoint.Inthebindingprocess,fraptheinsulatedtapeassoonaspossible.Whenadoptingarubberinsulatedtapetobind,carryoutbindingafterdrawingitmorethan2times,andthenbindwithablackrubberizedfabric.Thetwoendsofwirejointshouldbesealedcloselywiththeblackrubberizedfabric。(9)線路檢查及絕緣搖測LineCheckandInsulatingShake—measure:1)線路檢查:檢查導(dǎo)線接、焊、包是否符合施工驗(yàn)收規(guī)范及質(zhì)量驗(yàn)評(píng)標(biāo)準(zhǔn)的規(guī)定。不符合規(guī)定時(shí)應(yīng)立即糾正,檢查無誤后再進(jìn)行絕緣搖測.Linecheck:Checkwhethertheconnection,weld,orwraponconductingwiremeetwiththespecificationofconstructionacceptanceandtheregulationofqualitycheckstandard.Ifnotmeetwithregulations,rectifythemimmediately。Carryouttheinsulatingshake-measureagainaftercheckingwithoutanyerror。2)絕緣搖測:線路的絕緣搖測一般選用500V、量程為0-500MΩ的兆歐表。Insulatingshake-measure:Theinsulatingshake-measureoflinemayselecta500Vmegohmmeterthatthemeasurementrangeis0~500MΩ。3)一般線路絕緣搖測有以下兩種情況:Therearetwosituationsasfollowingsfornormallineinsulatingshake-measure。A、電氣器具未安裝前進(jìn)行線路絕緣搖測時(shí),首先將燈頭盒內(nèi)導(dǎo)線分開,開關(guān)盒內(nèi)導(dǎo)線連通。搖測應(yīng)將干線和支線分開,一人搖測,一人應(yīng)及時(shí)讀數(shù)并記錄。搖動(dòng)速度應(yīng)保持在120r/min左右,讀數(shù)應(yīng)采用lmin后的讀數(shù)為宜。Whencarryingoutalineinsulatingshake—measurebeforenotinstallingelectricappliance,separateconductingwiresinlampholderboxfirstly,theconductingwiresinswitchboxareconnected.Whenashake—measure,separatethemainlinewiththebranchline。Oneistomakeashake-measure,andtheothershouldreadandrecordreadingsintime.Theshakespeedshouldbekeptabout120r/min,andthereadingissuitabletoadoptthatof1minutelater.B、電氣器具全部安裝完在送電前進(jìn)行搖測,應(yīng)先將線路上的開關(guān)刀閘、儀表、設(shè)備等用電開關(guān)全部置于斷開位置,搖測方法同上所述,確認(rèn)絕緣搖測無誤后再進(jìn)行送電試運(yùn)行。Carryoutshake-measurebeforetransmittingpowersupplyafterallelectricapplianceshavebeeninstalledcompletely,firstlyputallelectricswitchessuchasknifeswitches,instruments,andequipmentsincircuitatthepositionofswitchoff.Themethodofshake—measureissameastheabove。Carryoutthetestrunoftransmittingpowersupplyagainafterconfirmingthereisnoerrorwithinsulatingshake—measure.3、橋架線槽安裝InstallingBridgeandRaceway:本工程配電干線采用電纜橋架線槽明敷于吊頂、機(jī)房、配電豎井內(nèi),具體的施工流程和控制節(jié)點(diǎn)如下:Themainlinefordistributionintheprojectadoptsthecablecranespanstructureslotlayingopenlyonsuspendedceilings,generatorrooms,ordistributionshafts。Thespecificconstructionflowandcontrolnodeareasfollowings.(1)工藝流程TechnologicalProcess:保護(hù)地線安裝保護(hù)地線安裝配線線路檢查及絕緣搖測彈線定位預(yù)留孔洞螺栓固定支架吊架預(yù)埋鐵金屬膨脹螺栓安裝預(yù)埋吊桿吊架焊接固定支架吊架橋架安裝PProtectthefixingofearthlineDistributionlineCheckinglinesandhandlingmeasureOrientationofelasticlinePreformedholesBoltfixingholderandsuspenderPreembedironFixmetalexpandingboltsPreembedsuspenderandhangingstructureJointingholderandsuspenderFixingcranespanstructure(2)外觀檢查:部件齊全,表面光滑、無棱刺、不變形;厚度均勻、涂層完整,無銹蝕;Appearancecheck:partsareallcomplete,smoothsurfacewithoutanyedgeordeformation.Thethicknessiseven,completecoatingwithoutanyrust。(3)橋架支吊架安裝InstallationofCrane—span-structureSupportandHangerFrame:1)水平橋架吊裝采用圓鋼作吊桿,角鋼作橫擔(dān),砼結(jié)構(gòu)上安裝吊架采用膨脹螺栓在頂板上固定。Thehoistingofhorizontalcranespanstructureadoptaroundbarsteelasaboomwhileananglesteelasacrossarm.Thehangerframeinstalledonconcretestructuremayadoptanexpansionbolttofixontheroof.2)豎向橋架支架采用型鋼制作,固定件應(yīng)與橋架配套。支架固定在墻體或樓板上,采用膨脹螺栓固定.Theverticalsupportofcranespanstructureadoptsastructuralsteeltomake,andthefixedfittingshouldbeequippedwithacranespanstructure。Thesupportisfixedonawallorfloor,andadoptsanexpansionbolttofix。3)電纜橋架吊裝吊桿間距:水平距離為2m,垂直方向?yàn)?。5m。各支架同層橫擔(dān)應(yīng)在同一水平面上,其高低偏差小于±5mm。橋架支撐點(diǎn)躲開接頭處,距接頭處0.5m為宜,在橋架拐彎和分支處,距分支點(diǎn)0。5m加支持點(diǎn);支吊架距上層樓板不應(yīng)小于150-200mm,距地面高度不應(yīng)低于100-150mm;Theintervalonhoistingboomofcablecranespanstructureisshownasfollowing:thehorizontaldistanceis2m,theverticalis1。5m。Thecrossarmatsamelayerineverysupportshouldbeatasamelevel,anditshigh—lowerrorislessthan±5mm.Thesupportpointofcranespanstructureisawayfromthejointanditissuitableforthedistancebeing0。5mtothejoint。Attheturningorbranchofcranespanstructure,andthereisanaddedsupportpointat0.5mtothebranchpoint。Thedistancefromsupportandhangerframetoupperfloorshouldnotbelessthan150~200mm,thedistancetothegroundlevelshouldnotbelessthan100~150m。(4)金屬電纜橋架、線槽及其支架和引入或引出的金屬電纜導(dǎo)管接地(PE)必須符合下列規(guī)定:Theground(PE)ofmetalcablecranespanstructure,slot,anditsleading—inorleading-outofmetalcableguidetubemustmeetwithfollowingregulations。1)金屬電纜橋架線槽及其支架全長應(yīng)不少于2處與接地(PE)干線相連接;Themetalcablecranespanstructureslotanditswholelengthofsupportshouldnotbelessthan2sectionstoconnectwiththemainlineofground(PE)。2)鍍鋅電纜橋架、線槽間連接板的兩端不跨接接地線,但連接板兩端必須有不少于2個(gè)有防松螺帽或防松墊圈的連接固定螺栓;Thetwoendsofjunctionplatebetweengalvanizedcablecranespanstructureandslotdoesnotbridgewiththegroundwire,buttheremustbetwojamnutsorfixedconnectingboltsoflockwasheratleast。3)非鍍鋅電纜橋架間連接板的兩端跨接銅芯接地線,接地線最小允許截面積不小于4mm2;Thetwoendsofjunctionplatebetweennon—galvanizedcablecranespanstructuresbridgethegroundwiresofcoppercores。Theminimumallowablecrosssectionofgroundwireshouldnotbelessthan4mm2。(5)橋架安裝BridgeInstallation:1)直線段鋼制電纜橋架長度超過30米應(yīng)設(shè)伸縮節(jié);跨越變形縫處設(shè)置補(bǔ)償裝置,線槽本身應(yīng)斷開,槽內(nèi)用內(nèi)連接板搭接,不許固定,保護(hù)地線和槽內(nèi)導(dǎo)線均應(yīng)留有補(bǔ)償余量;過沉降縫安裝如下圖:Whenthelengthofsteelcablecranespanstructureinthestraightlinesectionismorethan30meters,anexpansionjointshouldbesetup。Atthecrossingdeformationseam,acompensationsystemshouldbesetup,andtheslotitselfshouldbebroken.Intheslot,ajunctionplatemaybeusedtojoinandnotfixed。Bothprotectivegroundwireandconductingwireinslotshouldhavesomecompensationallowances。Theinstallationofover-settlementjointisshownasinthefollowingfigure.線槽伸縮節(jié)安裝做法InstallationonSlotExpansionJoint符號(hào)說明:SymbolExplanation:1-線槽Slot2-線槽吊具Slotsling3-線槽蓋Slotcover4-橡膠襯圈Rubberbushring5—連接蓋板Connectingcoverplate6-跨接線2)電纜橋架轉(zhuǎn)彎處的彎曲半徑,不小于橋架內(nèi)電纜最小允許彎曲半徑,電纜最小允許彎曲半徑見下表:Thebendradiusattheturningofcablecranespanstructureshouldnotbelessthantheminimumallowablebendradiusofcableincranespanstructure。Theminimumallowablebendradiusofcableisshowninthefollowingtable。序號(hào)SerialNo.電纜種類CableCategory最小允許彎曲半徑MinimumAllowableBendRadius1無鉛包鋼鎧護(hù)套的橡皮絕緣電力電纜Rubberinsulatedpowercablewithoutleadsheathsteel—armourshieldsleeve10D2有鋼鎧護(hù)套的橡皮絕緣電力電纜Rubberinsulatedpowercablewithsteel-armourshieldsleeve20D3聚氯乙烯絕緣電力電纜Polyvinylchlorideinsulatedpowercable10D4交聯(lián)聚氯乙烯絕緣電力電纜Cross-linkingpolyvinylchlorideinsulatedpowercable15D5多芯控制電纜Multiple—corecontrolcable10D注:D為電纜外徑Note:Distheexternaldiameterofcable.3)橋架通過連接板使用方頸螺栓進(jìn)行連接,螺母位于橋架外側(cè);橋架線槽與盒、箱、柜等接茬處,進(jìn)線和出線口均采用抱腳連接,用螺絲緊固,末端加封堵。Thecranespanstructureisconnectedwithasquareneckboltthroughajunctionplate.Thenutislocatedatoutsideofcranespanstructure.Thecranespanstructureslotadoptstheband-typeconnectionwithjoints,inlets,andoutletsofbox,case,andcabinet。Itusesascrewtotight,andtheendsshouldbeblocked.4)豎向線槽橋架與支架應(yīng)牢固連接,每2m固定一次。支架與樓板及墻體采用膨脹螺栓固定,線槽橋架與支架之間采用方頸螺栓固定,螺栓的圓頭在梯架的內(nèi)側(cè),豎向橋架安裝見下圖:Theverticalslotcranespanstructureshouldbefixedtoconnectwiththesupportfixingonetimeper2meters.Thesupportadoptsanexpansionbolttofixtheconnectionwithfloorandwall.Theconnectionbetweenslotcranespanstructureandsupportmayadoptasquareneckbolttofix.Theround-noseofboltisinsideofladder—support.Theinstallationofverticalcranespanstructureisshowninthefollowingfigure.橋架垂直安裝VerticalInstallationofCraneSpanStructure符號(hào)說明:SymbolExplanation1—電纜橋架Cablecranespanstructure2-支架Support3-膨脹螺栓Expansionbolt4-防火堵料Fireprotectionblock5-固定角鋼Fixedanglesteel5)敷設(shè)在豎井內(nèi)和穿越不同防火分區(qū)的橋架,按設(shè)計(jì)要求位置,有防火隔堵措施;橋架在穿過防火墻及防火樓板時(shí),采取防火隔離措施,防止火災(zāi)沿線路延燃,做法參看如下附圖所示:Thecranespanstructurethatislaidinshaftsandthroughdifferentfireprotectionsubsectionsshouldhavesomefireprotection&insulatingmeasuresaccordingtopositionsindesignrequirement.Whenthroughfirewallandfirefloor,thecranespanstructuremayadoptthefireinsulatingmeasuretopreventthefirecontinuetoburnalongtheline。Themethodmayrefertotheattachedfigureasfollowing。橋架防火封堵做法FireBlockofCraneSpanStructure符號(hào)說明:SymbolExplanation:1—電纜橋架Cablecranespanstructure2—防火封堵Fireblock3—鋼板Steelplate4-膨脹螺栓Expansionbolt(6)在同一線槽(包括絕緣在內(nèi))的導(dǎo)線截面積總和應(yīng)該不超過內(nèi)部截面積的40%。Thesumofwiresectionareainthesameslot(includingtheinsulatinglayer)shouldnotbemorethan40%ofinnersectionarea.4、電纜敷設(shè)CableLayout:掛標(biāo)志牌電纜沿線槽、橋架敷設(shè)準(zhǔn)備工作水平敷設(shè)垂直敷設(shè)終端頭處理掛標(biāo)志牌電纜沿線槽、橋架敷設(shè)準(zhǔn)備工作水平敷設(shè)垂直敷設(shè)終端頭處理鎧甲接地線電纜綁扎固定PutupsignboardPutupsignboardArrangethecablesalongthelineslotandbridgeframePreparationsPlanearrangementVerticalarrangementEndprocessingArmouredcablegroundingwiresBindandfixthecables(2)外觀檢查:電纜無壓扁、扭曲,鎧裝不松卷.耐熱、阻燃的電纜外護(hù)層有明顯標(biāo)識(shí)和制造廠標(biāo).Appearancecheck:cableshavenopressflatortwist,andarmoursdonotlooseandcrimp。Theoutsideprotectivelayerofheatresistantandfireresistantshouldhaveanobvioussymbolandamanufacturertrademark。(3)電纜敷設(shè)前進(jìn)行絕緣搖測Carryoutinsulatingshakemeasuresbeforelayingcables:(4)電纜穿樓板時(shí)應(yīng)裝套管,敷設(shè)完后應(yīng)將套管用防火材料堵死,并做好封閉措施,防止水從套管內(nèi)流入下層房間內(nèi);電纜穿樓板作法如下圖所示:Installasleevewhencrossingcablesthroughfloors.Blockthesleevewithfireresistantmaterialsafterfinishlayingandarrangetheclosemeasuresoastoavoidwaterflowfromthesleeveintothesub—storyroom。Themethodthatcablescrossthroughfloorsisshownasinthefollowingfigure。電纜穿樓板作法圖DiagramonCablesCrossThroughFloors符號(hào)說明:SymbolExplanation1-電纜Cable2-防火網(wǎng)Fireprotectionnetwork3—角鋼Anglesteel4—樓板Floor5-防火包Fireprotectionpackage(5)電纜沿橋架或托盤敷設(shè)時(shí),應(yīng)單層敷設(shè),排列整齊。不得有交叉,拐彎處應(yīng)以最大截面電纜允許彎曲半徑為準(zhǔn)。在同一線槽(包括絕緣在內(nèi))的電纜截面積總和應(yīng)該不超過內(nèi)部截面積的40%。敷設(shè)時(shí),應(yīng)放一根立即卡固一根,常用卡固件有電纜卡帶、電纜卡子,如下圖所示:Whenlaidalongwithacranespanstructureoratray,thecableshouldbelaidwithasinglelayerandputinorder.Thereisnoanycross,andtheallowablebendradiusofmaximumsectionareacableatthecornerofturningshouldbethestandard。Inthesameslot(includinginsulations),thesumofcablesectionareashouldnotbemorethan40%ofinnersectionarea。Whenlaying,putoneandclasponefirmly。Thenormalclaspshaveacablecassetteandacableclaspshowninthefollowingfigure.電纜卡帶CableCassette電纜卡子CableClasp(6)電纜穿過建筑沉降縫處,需要預(yù)留適當(dāng)長度,預(yù)留長度須使伸縮縫移動(dòng)時(shí)電纜不承受任何外力。Whenpassingthroughasettlementjointofbuilding,thecableneedstobepre-leftwithproperlength。Thepre-leftlengthmustmakethecablecannotendureanyexternalforcewhenmovingthecable。(7)電纜進(jìn)出配電箱(柜)處以及管子管口處要做密封處理。Boththedistributionbox(cabinet)thatcablescomeinorgoesoutandthepipeorificeshouldbetreatedwithseal.(8)掛標(biāo)志牌HangingLabels:1)標(biāo)志牌規(guī)格應(yīng)一致,并有防腐性能,掛裝應(yīng)牢固。Thespecificationoflabelshouldbeconsistent,andthelabelshouldhaveantisepsisperformanceandbehungfirmly。2)標(biāo)志牌上應(yīng)注明電纜編號(hào)、規(guī)格、型號(hào)及電壓等級(jí)。Thelabelshouldnotewithserialnumber,specification,andmodelofcableaswhileasvoltagelevel.3)沿橋架敷設(shè)電纜,在其兩端、拐彎處、交叉處應(yīng)掛標(biāo)志牌,直線段應(yīng)適當(dāng)增設(shè)標(biāo)志牌。Laycablesalongthecranespanstructure。Hangthelabelatitstwoends,turning,andcross。Thelabelshouldbesetupinadditionproperlyatthesectionofstraightline。(9)電纜交接試驗(yàn)合格且對(duì)接線去向、相位和防火隔阻措施等檢查確認(rèn)才能通電。Electrifyonlytillthetestofcablejoinisqualifiedandallsuchasconnectiondirection,phase,andfireprotectionmeasurearecheckedandconfirmed.5、配電箱、柜安裝InstallationonDistributionBoxandCabinet:本工程配電箱分為照明配電箱、動(dòng)力配電箱、控制柜等幾種類型。Thedistributionboxintheprojectmaybedividedintoseveraltypessuchaslightingdistributionbox,powerdistributionbox,andcontrolcabinet.配電箱安裝工藝流程TechnologyProcessonInstallingDistributionBox:箱體安裝箱體安裝安箱芯安裝施工準(zhǔn)備配接線彈線定位跨接地線絕緣搖測InstallationoftheTankBodyInstallationoftheTankBodyInstallationoftheCoreTankConstructionPreparationDistributingandConnectingLinesFlexibleLineOrientationJumperConnectingEarthWiresInsulatingHandTesting(2)配電箱、柜安裝Installingdistributionboxorcabinet:1)配電箱掛墻明裝OpenInstallationonDistributionBoxHangingonWall:配電箱掛墻明裝時(shí)應(yīng)保證安裝位置正確,部件齊全,箱體開孔與導(dǎo)管管徑適配。配電箱的所有進(jìn)出電線導(dǎo)管及開孔處須有保護(hù)措施,以防止損壞電線電纜。配電箱采用膨脹螺栓在墻上固定。砼結(jié)構(gòu)剪力墻明裝配電箱見下圖:Wheninstallingopenlythedistributionboxonwall,besuretoguaranteetheinstallationpositioniscorrect.Partsarecomplete,andtheopenporeofboxshouldbesuittothepipediameterofguidetube。Allguidetubesandopenporesofwiresindistributionboxmusthaveprotectivemeasurestopreventdamagingthewirecable。Thedistributionboxadoptsexpansionboltstofixonawall。Theopendistributionboxonashearwallofconcretestructureisshowninthefollowingfigure。配電箱明裝OpenDistributionBox符號(hào)說明:SymbolExplanation:1—鋼管Steelpipe2-配電箱Distributionbox3-膨脹螺栓Expansionbolt2)落地柜安裝InstallationonConsole:動(dòng)力控制箱出線回路較多,重量大,為了保證配電箱安裝牢固,采用落地安裝的配電柜.落地配電柜安裝用槽鋼做支架固定,落地柜在基礎(chǔ)型鋼上安裝,基礎(chǔ)型鋼在安裝找平過程中,需用墊片的地方,最多不能超過三片;最終基礎(chǔ)型鋼頂部宜高出抹平地面10mm;基礎(chǔ)型鋼安裝,其允許偏差必須符合下表:Thenumberofoutputloopinpowercontrolboxismore,andtheweightislarge。Toensureinstallingthedistributionboxfirmly,adoptafloortypeofdistributioncabinet.Wheninstallingthefloortypeofdistributioncabinet,useaU-steeltofixthesupport.Theconsoleisinstalledinapieceofbasesteel.Whenthebasesteelneedssomeshimsintheprocessofinstallationandmake—level,themaximumnumbershouldnotbemorethan3。Thetopofbasesteelissuitabletobehigher10mmthantheevenground.Theallowabledeviationofbasesteelmustaccordwiththefollowingtable.項(xiàng)目ItemAllowableDeviation(mm)垂直度Verticality每米Permeter1全長Overalllength5水平度Levelness每米Permeter1全長Overalllength5盤柜單獨(dú)或成列安裝時(shí),其垂直度、水平度以及盤柜面平度和盤、柜間接縫的允許偏差必須符合下表要求。Wheninstalledindividuallyorinlow,theverticalityandlevelnessofdiskcabinetandtheallowabledeviationbetweenthelevelnessofdiskcabinetandthesealbetweendiskandcabinetmustaccordwithfollowingrequirements.項(xiàng)目Item允許偏差(mm)AllowableDeviation(mm)垂直度(每m)Verticality(permeter)1。5水平度Levelness相鄰兩盤頂部Thetopoftwocontiguousdisks5成列盤頂部Thetopoftworowdisks5不平度Unevenness相鄰兩盤邊Theedgeoftwocontiguousdisks1成列盤面Thefaceofrowdisks5盤間接縫Seambetweendisks2(3)配電箱(柜)內(nèi)接線WiringinDistributionBox:1)箱內(nèi)配線整齊,綁扎成束,無絞接現(xiàn)象,在活動(dòng)部位應(yīng)用長釘固定,盤面引出及引進(jìn)導(dǎo)線應(yīng)留有適當(dāng)余度,以利于檢修;回路編號(hào)齊全,標(biāo)識(shí)正確.導(dǎo)線連接緊密,不傷芯線,不斷股.墊圈下螺絲兩側(cè)壓的導(dǎo)線截面積相同,同一端子上導(dǎo)線連接不多于2根,防松墊圈等零件齊全。Thedistributioninboxisinorder,andboundintobundlewithoutanyhingejoint.Atflexibleparts,usespikestofix.Theconductingwireledin/outofdisksshouldleaveproperclearancessoastobeconvenienttoexamineandrepair。Theserialnumberofloopiscompleteandthesymboliscorrect。Thewireconnectscompactlynottodamagecoreswithoutanybreakone。Thewiresectionareaattwosidesofscrewsunderwashersissame.Thenumberofwireconnectionatthesameterminalshouldnotbemorethan2,andthepartssuchaslockwasherarecomplete.2)照明箱內(nèi),分別設(shè)置零線(N)和保護(hù)地線(PE)匯流排,零線和保護(hù)地線經(jīng)匯流排配出。Inalightingbox,anullline(N)andaprotectiveearthline(PE)shouldbesetupseparatelyintoabusbar.Thenulllineandtheprotectiveearthlinemaybetransmittedthroughthebusbar.(4)絕緣搖測InsulatingShakeMeasure:電箱全部安裝完畢后,用1kV兆歐表對(duì)線路進(jìn)行絕緣搖測.搖測項(xiàng)目包括相線與相線之間、相線與零線之間、相線與地線之間、零線與地線之間。Afterfinishingalldistributionboxes,carryoutaninsulatingshakemeasureonthecircuitwitha1kVmegohmmeter。Theitemofshakemeasureincludesbetweenphaselineandphaseline,phaselineandnullline,phaselineandearthline,andnulllineandearthline。6、電氣器具安裝InstallationonElectricAppliance:本工程末端電氣器具安裝主要包括燈具、開關(guān)及插座的安裝。Theinstallationofelectricapplianceattheendoftheprojectmainlyincludesinstallinglamps,switches,andsockets。(1)工藝流程TechnologicalProcess:開關(guān)插座安裝工藝流程:Technologicalprocessforinstallingswitchsockets線盒清理線盒清理導(dǎo)線連接驗(yàn)收面板安裝通電試運(yùn)行LineboxclearnessLineboxclearnessLeadconnectionExamination&acceptancePanelinstallationElectrifiedtrialoperation燈具安裝工藝流程:Technologicalprocessforinstallinglamps檢查燈具檢查燈具組裝燈具驗(yàn)收安裝燈具通電試運(yùn)行LampexaminationLampexaminat
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