鋼結(jié)構(gòu)施工外文翻譯

SteelStructureConstructionSchemeⅠ.AbriefaccountofsteelstructureworkTherewillbe68tbridgetravelingcranesinproductionhall,weldingH-sectionsteelcolumnandbeam,structuralmainmaterialisQ345B,coldbendingsheetsteelZ-purlin,wallandroofcladdingaredouble-skinpressedsteelsheetandthermalinsulationwool.Ⅱ.CharacteristicofsteelstructureworkThesinglespanoftheworkis18m,theheightofsteelcolumnislarge,singleframeplaneexternalrigidityisverysmall,sothekeypointofsafetytechnicalcontrolistoguaranteethestabilityoutsidethestructuralplane.Takeout6steelcolumnsfromgridline9~14intheproductionbuilding,insteadof52.5mⅢ.FabricationofsteelstructuralmembersTechnicalpreparationspriorfabrication1.Studyandcheckthedesignworkingdrawingbeforefabrication,makeshopdrawingandgetapprovalfromdesignerthenpreparematerialforfabrication.2.Makeaplanandprogramforfabricationasperthetype,quantityandmaterialofthestructuralmembers.3.Writeconstructiontechniquesandtechnicalmeasures,andtheequipmentregularexamineandmaintainplan,keepthemachineryingoodcondition.Materialrequirements:1.Selectandconfirmthematerialfortheproject.2.Allkindsofmaterialshouldbewithqualityguaranteeandex-factorycertificate.Ifthereisanydoubt,samplingexaminationshouldbetakenaccordingtorelevantnationalstandard,onlywhenpassedtheexaminationmaterialinbatchescanbeused.3.Rustdegreeofsteelsurfaceshouldconformtothepresentnationalstandard<rustandrustremovaldegreebeforepainting>.4.Jointingmaterial(weldingrod,solder,flux),highstrengthbolt,andcoating(undercoatandtopcoating)shouldbewithex-factoryqualitycertificateandconformtothedesignandnationalstandard.5.Iftheskinofweldingrodispeeledofforthecoreisrust,weldingfluxiswettingandagglomeratingormelting,thehighstrengthboltisrust/damagedortakenfromdifferentbatches,thesematerialsarestrictlyprohibited.6.Anti-corrosionpaintshouldconformtothedesignandrelevantstandard,andwithqualitycertificateandoperationinstruction.Equipmentandtoolpreparation1.Checkandmaintainthefabricatingequipmentinadvance.2.Thefabricatingtoolsandmeasuringinstrumentshouldbewithcertainaccuracy,andbeexaminedandmarkedbythemeasurementtestingdepartmentregularly.3.Weldershouldbearingthequalificationcertificate,anddotheworkwithinthescopestipulatedincertificate.Iftheweldingworkstoppedmorethan6months,theweldershouldbere-examinedandpassedtheexamination.KeypointsofsteelstructuralmemberfabricationweldingweldingadjustmentpartassemblyIntegralassemblyEndmillingweldingadjustmentEndmillingPuchingRust-removalAnnealingtrPainting&packingSemi-readyproductstoragebendingEdgemachiningPunchingandboringSecondmaterialutting割Ex-factoryloftingRawmaterialcalibrationCutting,punching,sawingsawingGascuttingSparepartsstraighteningassemblyweldingadjustmentⅣ.SteelstructureinstallationmethodPreparationspriortoinstallationAspertherequirementofsteelstructureinstallation,beforeinstallationworkstarted,itisneedtocheckandclearthesite,insuretheaccessforhoistingissmoothandfirm,andconstructionpowerisready,thefollowingworksarealsoneedtodosimultaneously:1.Surveythehorizontallevelandaxialdeviationoftheallgroupsofembeddedbolts,makerecordsforthehandingoverwiththecivilworkteaminwriting.2.Thesincethequantityofstructuralmembersislargeandhasagreatvariety,itmustbenumberedandconfirmedtoavoidmis-placed.3.Makenecessaryinspectionandacceptancejointlywiththeemployerandsupervisorbeforeinstallation.Transportationandstorageofstructuralmembers1.Transportstructuralmembersbyappropriatevehicleasperthegeometricdimensionandunitweight,makenecessarysoftmatandbindingduringtransportation.2.Whileloading/unloadingandmovingthestructuralmembers,itmustbehandledgently.Insertspacerwhilenecessarytoavoiddamagethepainting.3.Someonemustbeputinchargeoftransportationandstorage.Structurehostingandinstallationmethod1.ConsiderationaboutinstallationofsteelstructureThetypethestructureinthisprojectisastandardportal-framedstructurewithmovingcranebeam,externalrigidityofasingleframeissmall,thesequenceofmobilizationofstructureisstartfromgridline1,firstinstallsteelframeatgridline1~2,bracingtocolumnandroofinstalledandadjustedsimultaneouslytoformastablespacesystem,thenmovedtogridline29.SteelcolumntobehoistedandinstalledthroughSinge-Crane-Rotating-method,thesteelbeamtobehoistedthroughTwo-Crane-Lifting-methodafterassembledontheground.TrusstrimmertobeassembledwithboltsonthegroundandhoistedthroughTwo-Crane-Lifting-method.Spacebetweencranebeamandroofpurlinis3.5m,itisenoughforminimumhostingspace,andcanbedoneafterthestructureinstalledoralternatedin.2.HoistingandinstallationandadjustmentofsteelcolumnSteelcolumntobehoistedthroughRotatingMethod.Someonemustbeinchargeofhoistingandinstallation,safety,qualityandtechnologytobetalkedoverindetailsbeforehoisting.Fortheefficienthosting,whilepilingthecolumns,putthebindingpoint/columnfootingcenter/basecenteratasamearc.Whilethecolumnisbeinghoistedslowly20cmabovethefloor,stophoistingforawhiletochecktheslingandcrane,opentheswingbrake,thenputthecolumndownat40~100mmtotheinstallationplane,aligntothedatumline,directthecranedescend,insertthecolumntotheanchorboltandfixedtemporarily,tiethecolumnattwodirectiontostablethecolumnstructure.Afterinitialadjustmentofthecolumn,onlywhentheverticaldeviationcontrolledwithin20mmthencanremovethehookofcrane,checktheverticalitywiththeodlite,anydeviationtobeadjustedimmediately,whileadjustmentisbeingdone,observethebottomandlevelcontrolblocktoavoidhorizontalleveldeviation.Verticaladjustmentofthecolumn,fixtwotheodlitestothelongitudinalandtransverseaxis,firstaimatthecolumnbottomwingorcenterlinethenmoveupwardtothecolumntop,ifthecenterlinedriftedoffthelineofsight,toadjustthetieropeorsupport,makethecolumntobeverticalthroughprying.Usuallytoerectarowofcolumnsfirstthentodoadjustment.Atthattime,twotheodlitescanbeplacedatonesideoflongitudinalandtransverseaxis,deviationtothecenterlinenotmorethan3m.whilehoistingrooftrussorinstallingverticalmembers,thesteelcolumnmustbere-checkandadjusted.2.Hoistingandinstallationofsteelbeam3.Afterthesteelbeamturnedoverandpositioned,trialhoistmustbedonerepeatedlyandbondagain,whiletrialhoistisbeingcarriedoutitmustbeliftedslowly,thebeststateisthatuniformforceateachpointandthebeamwillnotdeformed,thentohoistandrotatetothedesignedposition,pullthecontrollingropebuckledonthebeaminadvancebyhandontheground,rotatingtotheposition,fixthecolumnandbeamconnectingholewithhighstrengthbolt.Sincethefirsthoistedbeamlengthis46m,5guyropesshouldbetied,whilefixingit,checktheverticalitywithpendant.Thesecondandtheafterbeamstobefixedtemporarilybytheroofpurlinandtiebeam..4.Re-checkthecolumnwhilehoistingthebeam,normallyusethechainblockandsteelwirerope,theropetoberemovedtillthebeaminstalled.Thesteelbeamridgelinemustbecontrolled.Makethedeviationbetweenthetrussandthecolumnendscenterlinebeequal,sothatalltherooftrusstobeatasamecenterline.TheconnectionofthehighdensityboltMaterial1.Thebolt,nutandwasherswillbeaccompaniedwiththequalitypasscertificateofwhichiscompliedwiththenationalstandardandthespecification.2.Thebolt,nutandwashersshouldbeinuniform.Thethreadshouldnotbeworn-out.Itshouldbeincleananddrystateandbekeptinthestorageaccordingtothespecification.Preparationtotheboltbeforeinstallation1.Checkeachpartoftheinstallationisinrightpositionandmakesurethattheinstallationiscomplywiththe“Regulationforcheckandacceptancetothequalityofsteelstructurework”codeno.GB50205-20012.Checkthemainmaterialwiththeholeiscorrectindiameterandthesize.Makesurethatthesmoothismetthespecifiedrequirement.Ifthereisthreadonthemainmaterial,weimmediatelyremoveit.3.Weshallfamiliarwiththeinstallationconstructiondrawingandprogramscheduleandmakefullpreparationtotheworkspannerandtheotherrelatedequipment.4.PreparationtothemeasuringtoolsTheworkmanship1.Theconnectiontothesteelplatemustbestraight,thesideandholeshouldcontainnothorntomakesurethesurfaceiscloselyattached.Ifthereisthebending,weshallmakenecessaryadjustmentandavoidthedamagetothefractionsurface.2.Beforefixing,weshallcleandirtyoilandpaintontheholeside.3.Beforeinstallation,weshallusetemporarybolttofixinposition,thenumberwillbemorethanonethirdofthetotalnumberfortheconnectedbolt.Themethodispreadjustthesteelholeandputthetemporaryboltinsideandthenusethenuttoscrewit.Therewillbetwotemporaryboltsineachpoint.Notallowedtousethehighdensitybolttobeservedasthetemporarybolt.Afteronesectioniscompleted,thentocheckitandconfirmedthentocarryouttheworkwiththehighdensitybolt.4.Whileinstallthehighdensitybolt,weshallmakesurethatthecentralpositionischeckandnomistakeandthenproceduretheworkofthehighdensitybolt(Thisprojectadoptthedoublenutscrewtight).Thewasherwillbeputononesideofthenutandbesurenotinoppositedirection.Iftheboltcannotbethroughtheholefreely,weshallusetheknifetoadjusttheholeandthenprocedurethework.Itshouldnotusetheforcetogothroughtheholesoastoavoidthedamagetothethread.Cleanthethornafteradjustingthehole.5.Thetightforhighdensitybolt:Thisworkwillbeintwostage,thefirststageiscalledpreliminarytight,thetightforceisabout50%-60%ofthedesignedpre-pullforce.Thesecondstageiscalledthefinaltight.Thetightforcewillreachthedesignedpullforce.Thedeviationwillbelessthan±10%.Thepre-pullforcewillbedeterminedaccordingtothedesignedspecification.Duringthework,thespannerforceformulawillbeTc=k*Pc*dk=0.11~0.15Pc(designedpre-pullforce)d=thediameterofthebolt.6.Checktheturnspacespannermarkrecordandtheboltconstructionrecord.Ifthereisanyquestioning,weshallcheckthepreliminarytightrecord.Qualitystandard1.Thehighdensitybolt’stype,specificationandthetechnicalconditionshouldbecomplywiththedesignedspecificationandtherelatedstandard.Wemustcarryoutthetesttodeterminetheturnspacecoefficientandrecheckboltpre-pullforceandcheckthequalitypasscertificateandthetestreport.2.Theconnectionsurfacefortheboltinfrictioncoefficientwillbecompliedwiththedesignedrequirementandtherelatedspecification.Onitssurface,thereshouldbenorust,thorn,weldingremaining,dirtyoilandpaint,etc.3.Thehighdensityboltmustbetightintwostage,thequalityofthepreliminaryandfinaltightshouldbecompliedwiththeconstructionregulationandtherelatedspecification.4.Thehighdensityboltwillbeputthroughinthesamedirectionandthethreadringsshouldlessthan2rings.5.Thefrictionsurfacebetweenshallcompliedwiththedesignerandtheregulationforsteelstructurecheckandacceptancerequirement.ItemstobetakeninconsiderationduringtheinstallationforhighdensityboltQualitycontrol1.Thesurfacewithrust,dirtyoil,thornandweldingremainingshouldbecleaned.2.Aftertreatingthefrictionsurfaceshouldbereachedtheantislidecoefficientrequirement.Theuseofthehighdensityboltandthenut,washersshouldbeuniformandbeusedatthesametimenotallowedtoexchange.3.Treatthepart’sfrictionsurface.Whileinstallation,therewillbenodirtyoilandsoil,etc4.Whileinstallationthepart,thefrictionsurfaceshouldkeepdryandavoidtoworkinrain.5.Beforeinstallation,weshallcheckandrechecktheconnectedsteelplateandmakenecessaryadjustmenttothebending.6.Whileinstallation,weshallnotusethehammertohitthebolttoavoidthethornoftheboltbedamaged.7.Weshallcheckandmeasurethespannertimelytothepreliminaryandthefinaltightofthehighdensitybolt.Weshallmakesurethepreciseanddothenecessaryrecord.Thetightworkwillbecarriedoninrightprocedure.Majorsafetytechnicalmeasures1.Tousetheflexiblespannerthesizewillfitthenut.Whileworkhighabovetheground,weshallusethefixedspanner.Ifweareusingtheflexiblespanner,weshallbetiedwithsafetybelt.2.Whileassemblethesteelparttoconnectthebolt,weshallavoidtousethehandintestingthescrewhole.Thehandwillbeonthesideofthesteelplate.Ⅴ.TheroofpanelinstallationmethodTheinstallationofthecolorsteelsheetcomposedofthedetailedpartdesign,productionsequence,transportandinstallation,etc.Everypartoftheworkandthemethodisthekeylinktotheproject’scompletion,safety,andquality.Theinstallationworkwillbecarriedoutafterthesteelstructureworkhasbeencompletedwiththeformalityofthecheckandacceptcertificate.DetailedpartdesignworkThispartofthedetaileddesignplaysakeyroletotheinstallation.Weshallmagnifyeveryconnectionpointontheoriginaldrawingsoastoinstructtheworkandworkmanshipprocedure.Thefollowingsarethemaincontentforthedetaileddesign:1.Theroofcoveragearrangement2.Theconnectpointenlargedrawing(includethetreatmenttogutter,thejoint,facialandflush)3.DetailedpartdesignflowProject→constructionjointdesign→editdrawing→check→audit→sent→issuePreparationforthecolorsteelsheetinstallation1.Beforetheinstallationofthecolorsteelsheet,weshallcheckthesizebetweenthestructureparts,thelevelandthequality.Ifthereisanybendingonsteelstructureparts,weshallcarryouttheadjustmentworkimmediately.2.Beforetheinstallationofthecolorsteelsheet,weshallcheckthosealreadyinstalledcoolbendthinplatepartofwhichshouldnotbeheavyloadedorwelded.3.Beforetheinstallationofthecolorsteelsheet,weshallmakesurethatthepullpoleorthepresspolearetightandthepurlinareinrightposition.Thetwistedangleforprulinshouldlessthan3°.4.Beforetheinstallationofcolorsteelsheet,weshallcheckallthecoolbendedstructurewhetherthepartsaretreatedwiththerustprotected,fireprotected,convenientforinspection,brush,paint,avoidwatercollectedandsealedtheendofthesteelstructurepart.5.Thetemporarystackforcolorsteelsheetshouldbearrangedaccordingtothegeneralconstructionlayouttoputinposition.Weshallprepareasolidcompacted,flatareawithgooddrainagesystemandconvenienttransportationforcolorsteelsheetandtemperaturereservecotton.Weshallalsomakesurethattheareawillhavethemeasurestobecoveredwithplasticclothetoprotecttherainwater.6.Weshallmakesurethattheinstallationtools,equipment,protectitems,connectparts,propandtheaccessoriestothecolorsteelsheetarefullyprepared.Allthesewillbetestedandqualified.Theseitemswillbeinstoragewithafulltimepersontolookafter.7.Weshallmakesurethatthestaffwillbefullyunderstandthetechnical,quality,safetyoftheworkbeforeundertakingtheroofinstallationwork.Weshallmakethemfullyunderstandtheconstructiondrawings,workmethod,safetyoperation,qualityrequirement.Weshallrechecktheaxisfortheinstallationparts,thelevel,etc.TheinstallationmethodofColorplate1.Theinstallationofroofpanelstartedfromthegable.Surveyandsetadatumpositioninglineatthelowerendofroofinadvancetoguaranteetheaccuracyofinstallation,theninstallinorder.2.Checktheroofpanelinlengths(normallytenpanels)duringinstallation,tocheckthestraightnessofthetwoendofthepanelandtheparallelismtoavoidthatitwillbeinclinedorfan-shaped.Necessaryadjustmenttobedoneduringinstallation,micro-adjustmenttobedoneonebyonetomeettherequirementofquality.3.Jointofroofpanelinlengthdirectionwillbeover-lappedonthebracingmembers,lappinglengthis250mm.4.Reliablesealanttobedonetolapatthelengthdirectionoftheroofpanel,siliconeorweatherstriptobefilledattwoends,15mmapartfromthepanelend.Bottompanelover-lappinglengthis80~100mm,sealantmightnotbedoneatover-lap.5.Leave50mmgapbetweentwopanelsatridge,itispreferabletobentthepanelupwardat80”toformaflashing.Thepressedsteelpaneltobeprojected120mmatgutter,bentdownwardat10”toformadrip.6.Over-lapofflashingboardnotlessthan100mm,withenoughwidthandrollededge,spacingofjointsnotmorethan50mm.Sealanttobedonetoover-lapforwater-tightness.7.Atroofridgeandinterfacebetweenupperandlowerspan,flashingandroofpaneltobejointedbyover-lap,lapnotless200mm,insertwaterproofclosureinlap.Ⅵ.Wallpanelinstallation1.Wallpaneltobeinstalledpriortoroofeavesgutterwithspecialpurposehoistingandclampingapparatus.2.Thefirstwallpaneltobeinstalledasperthegableoutsidecornerline,usetheodliteandorpendanttofixthedatumline.3.Screwtobefixedtothetopandbottomendofthewallpanelfortemporarypositioning,whenagroup(about10)ofpanelslaidandadjusted,fastenthescrewtothewallpurlin.4.Markthepositionofscrewbetweenwallpanelandpurlin,itshouldbeeventothepurlinandbeuniformlyarranged.5.Installthepaneltobeover-lappedinlengthdirectfrombottomtotop,theover-laptobearrangedatthepositionwallpurlin,interpanelover-lappinglengthis80－100mm,outerpanelover-lappinglengthis120mm,sealantmightnotbeneededatover-lap.6.Inspectiontobedonebyroomsforwallpanel,usetheodliteorhangthependantatcolumncenterlinetosurveytheverticality.7.Gablepanelstobecutatdifferentlengthaspertheroofpitch,thentoinstallit.Addendclosuretogableeaveflashingifnecessary.8.Gableflashingtobedonestartedfromeaveuptotheridgeaftertheroofandwallpanelinstalled.Outsidecornerpaneltobedownfrombottomtotop,rivettobeusedforthejointstowallpanel,spacingasperthetechnicalrequirement.9.Doorandwindowflashingstartedfromtoptothetwosides,usewallpurlinordoor/windowframeforfixing.Ifitistobeconnectedtothepressedplate,userivetforjoint.Flashingatopeningonwall,it’stoptobeinstalledinsidethewallpanel,bottomoutsidethewallpanel.Tofixthewallpanelandflashingtothewallpurlinwithself-tappingscrew.10.Jointsbetweenflashingstobesealedwithsilicone,andifwrongscrewholeopenedonthewall,itmustbefilled.Ⅶ.FireproofingcoatingPreparations1.Tofulfillthehighrequirementofappearance,andthecoatingmustbefireproofingasperthedesign,sothetopcoatingtobedonewithnon-airspray-onmethod.2.Thefireproofcoatingshouldbewithex-factoryqualitycertificateandex-factorycertificate.3.Beforefireproofingcoatingdone,thesurfaceofstructuralmembersshouldbefreefromrustanddust.Applycomplementaryanti-rustundercoattotheexposedareaontheinstalledstructuralmembersandjoints.4.Checkthereceivingsurfacebeforecoating,toseewhetheritisfreefromrust,oil,anddustetc.Makesurethematerial,machineryandscaffoldingareready.WorkingprocesschatReceivingsurfaceclearing→applyundercoat→drying→repeatasperproductrequirement→filler→grinding→sprayfireproofcoating4layers(metalgloss)Technologicaloperationmainpoints1.Togetgoodadhesion,thicknessofdryfilmofthefirstlayerofcoatingshouldbenotmorethan200μm,after24hoursapplynextlayer,theafterlayersthicknessnotmorethan300μmtofulfilltherequirementoffireproofinglimit.2.Sprayingdistancetobecontrolledwithin300~380mm,sprayingrange30~50cmforlargeobject,10~30cmforsmallobject,normallyitis30cm.3.Anglebetweenspraynozzleandtheobjectsurfaceis30°~80°，spraygunrunningspeedis0.1~1.0m/minPointsforattention1.Onpresentmarket,therearevariedkindsoffireproofcoating,applyingmethodisbasicallythesame,butthethicknessshouldrefertotheproductdirectionandtestingreportissuedbygovenmentfirefightingdepartment.2.Environmentrequirementforcoating:theairtemperatureshouldbeabove3℃,coatingshouldnotbedoneoutdoorifitrains,condensationofsurfaceorairhumidityexceed85%.3.Afterlastlayerofundercoatfinished,scrapingthesurface,andthenfollowedby4layersofsprayingcoating.4.Whilecoatingbedoneontheground,leavethemarkofnumberofthestructuralmembers.Consideringspoilanddamagemayoccur,leavecertainthicknessfortouch-upcoatinghighabovethegroundtomatchthecolor.Acceptancestandardofquality1.Thereshouldbenomistake,misses,peelingandrusting.Thecoatingshouldbeuniformnoobviousriveling,runs,airbubblesetc.2.Thesecondlayeroffireproofcoatingmustbeappliedonlywhenthefirstlayergetdriedcompletely,otherwiseitwillberiveling,peeling.It’sthicknesstobetestedandacceptedaspertheproductdirectionandtestingresultissuedbyqualifiedfirefightingdepartment.3.Coverthecoatingwhichisnotfilmedwhenitrain,coverthepaintedstructuralmembersoranyotherpartwhichmightbespoiledwithPVCmembrane.Ⅷ.SafetyguaranteemeasuresSafetyworkingmeasures1.Allconstructermustbeabidestrictlybynationalsafetyrulesandregulations,makeself-protectionconscientiously.2.Allconstructermustbetrainedandeducatedwithprofessionalsafetyknowledge,andgotoworkingbearingthecertificate.3.Appointfulltimesafetysupervisortothesite.Appointfulltimesafetyadministratortoeachworkingteamtoformaeffectivesafetynetwork..4.Arrangedifferentsafetymeasurestodifferentworks,makerecords,organizeinspections.Safetypointsforattentionatconstructionsite1.Firmlycarryoutnationalstipulationof<Safetytechniqueoperationrulesofbuildingandinstallation>2.Strengtheningsiteconstructionmanagement,constructingroadtobelevel,smooth,andhardened,materialandstructuralmemberstobepiledandstoredstablyandinorder.3.Nosmokingonsite,inworkshopandtemporarywarehouse,equipwithfirefightingdevice.4.Providesafetyprotectioncoverandgroundprotectiontoelectricalequipment,someonemustbeputinchargeofmachineoperation,eachmachinetobeinstalledwithaelectricshockprotector.5.Providesufficientprotectiveglasses,maskandsafetyshoestostaffonsite.6.Allmaterialandstructuralpiledandstoredstablyandinorderinproperplace.Structuralmembersmustbefixedwhilepilingandassembling,nowalkingaheadtothemovingmembers.7.Pryupobjectwithhands,itisprohibitedtorideonthecrowerandcarrythecrowerunderarms.Donotoverexertoneselfwhileusingcrowerworkhighabovetheground.8.Checkthespringboard,scaffolding,swingingscaffold,scalingladder,ropeandsafetynettingetcpriortoworkhighabovetheground.9.Nooneallowedtogointothehoistingsite,donotstandunderthecranecantilever.Thehoistingdirectorcannotstandaheadtotheheavyobjecttobehoisted.Runningstablywhilehoisting,thehookcanberemovedonlywhenthehoistedmembersinpositionandfixedtemporarilyorconnectedreliably.10.Whenthewindspeedreaches10m/s,partofhoistingworkshouldbestopped,whenitreaches15m/s,alltheworkmustbestopped.Noweldingoutdoorinrain.Checkthestructuralmembersafterrainandwindmakesuretheblindingandsupportbefirm,slip-resistanceworkneedtobedone.11.Clearthesiteaftereachshift,keeptheroadsmooth,cutoffthepowerafterwork,checktheworkingsiteafterworkmakesurenofiredangerous.Safetyofconstructionelectricity1.Maketemporaryconstructionelectricityorganizationdesignorelectricitysafetytechnicalmeasuresandfireproofmeasures.2.Establishsafetyelectricitysystem.Selectexperiencedprofessionalelectriciantothesite.3.Constructionelectricityistobearrangedaspertheconstructionelectricityscheme.Oneequipmentprovidedwithonegear,andconnectedwithreliablegroundprotection.4.Iftheconstructionsiteandoutsidelinesharewithonepowersupplysystem,theelectricalequipmentmustbeprotectedwithgroundconnectionorzerocircuit,butshouldbeallthesame,partgroundprotectionpartzerocircuitisprohibited.5.Groundconnectercannotusealuminiumconductor,verticalgroundconnecterprefersteelangle,steeltubeorroundsteelbutnotscrew-threadedsteel.6.Distributionboxandswitchboxpreferablytobemadeofsteelplateorgoodqualityinsulatedmaterial,thicknessofsteelplatenotlessthan1.5mm.Spacingbetweenthefixeddistributionandswitchboxbottomshouldwithin1.3mto1.5m;Spacingforportableboxeswithin0.6mto1.5m7.Oneequipmentuseoneswitchbox,aswitchboxcannotbesharedbytwoormoreequipment(includingsocket),maindistributionboxandswitchboxmustbeequippedwithelectricleakageprotectivedevice,ratedleakageactiontimeshouldbereasonablydisposed.8.Allthedistributionandswitchboxshouldbemarkedwithnameandusage,signofbranch.,someonemusttobeputinchargeofthework,providelocktoit,inspectandmaintainonceamonth.Usequalifiedfuse.9.Alltheelectricalequipmentanditsdevice,safety,protection,useandmaintainmustbeaccordwiththerequirementofJGJ46—88<Constructionsitetemporaryelectricitysafetytechnicalrules>.Boldsafetysignandoperationrulesboardtobeprovided.10.Dailysafetyinspectionistobetakenonsiteforelectriclineandequipment.Anyproblemistobesettleddownbycertainpersonwithinthefixedtime.ⅨQualityguaranteemeasuresFabricationqualityguaranteemeasures1.Organizeainternalfulltimeinspectionteamtocarryoutregularandirregularinspectionorspotchecks.