电气设备安装工艺英.docx
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电气设备安装工艺英.docx
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电气设备安装工艺英
AADSDSDDWS
校对
编制
7600DWTDRYCARGOSHIP
THEINSTALLATION
WORKMANSHIPOF
ELECTRICEQUIPMENT
HT401-600-01GY
日期
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南京华泰船业有限公司
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共12页
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Content
1.General…………………………………………………………………………….……3
2.Outfitforequipment………………………………………………………………….…3
3.Basicworkmanshiprequirementsforequipmentinstallation………………………...…3
4.Additionalrequirementsfortheinstallationofelectricequipment……………………..5
5Cableenteringofequipment……………………………………………………….…….8
6.Cableconnectionofequipment………………………………………………………….11
7.Additionalrequirementsfortheinstallationofexplosion-proofelectricequipment……12
8.Inspectionitems…………………………………………………………………………12
1.General
1.1Thisworkmanshipiswrittenaccordingto“GL2004”GermanischerLloydrule,People’sRepublicofChina“Installationworkmanshipofmarineelectricequipment”(ZB/TU06003-89)andourshipyard’straditionalworkmanshipaswellaspracticalconditions.
1.2Thisworkmanshipisapplicablefortheinstallationofgeneralelectricequipment.Somespecialinstallationworkmanships,whichareinthescopeofradioequipment,navigationequipmentandotherspecialequipments,shouldbeinaccordancewithequipment’stechnicaldocumentation.
2.Outfitforequipment
2.1Accordingastheshopdrawing(ArrangementPlan,AssemblePlan,etc)ormateriallist,shipyardpreparesnecessarymaterialstooutfitequipment.Allelectricequipmentsshouldhavemanufactories’certificates.Thoseimportantequipmentsneedingsurveyor’sapprovalmusthavesurveyor’scertificatesormarineproduct’sapprovalcertificatesandproduct’sdeliverydatemustbewithinitsvalidusingperiod.
2.2Tocheckthemodel(specificationandratedvalue)ofequipmentsandprotectivecomponents,whichmustcomplywiththedrawings,andtoinspecttheintegrityandcompletenessofequipment.Ifnecessary,tomeasuretheinsulationresistanceofequipment.
2.3Tocheckifthequantityandinnerdiameterofequipment’sglandboxisaccordantwiththedrawingsandtofitsealingrubbergasketormetallicgasket.
2.4Toprepareandfitequipment’sinstallationfoundation(orsupport),shockabsorberandearthingfittingsaccordingasthedrawings.
2.5Toinstallequipment’snameplatecomplyingwiththedrawings.Necessarycircuitdiagramordistributionsystem’sdrawingstobeprovideforthoseequipmentswithinnercableconnections.
2.6Forthoseequipments,suchasnavigationlights,floodlights,fans,etc.withsocketpowersupplymustconnectoutsideconnectioncablesandplugpreviously.Otherequipmentsratedvoltageabove50Vmustbeprovidedwithearthingpoleplug.
2.7Finishedoutfittingequipmentstobestoredindifferentconstructionareasandtobeprotectedfromcollisionanddamage.Storedplaceshouldkeepcleananddry.
3.Basicworkmanshiprequirementsforequipmentinstallation
3.1Equipmentstobeinstalledonboardinbatchesaccordingtoconstructingschedule.Topreventdamage,insulationabilityreducingandcorrosionfromoccurring,whichcausedbyearlyinstallationonboard.
3.2Totake“three-prevention”measuresbeforeequipmentisinstalledonboard:
fireprevention﹑damageprevention﹑missingprevention.
3.3Topreventequipmentfromcollisionbyhoisting,gettingwetbyrainandgettingburntbyslagwhileequipmentisgettingreadyforinstallation..
3.4Tomakelayoutboardpreviouslybeforesupportsarewelded,whichareusedfortheinstallationofthoseimportantequipmentsandotherswithouthightemperatureresistantenclosures.Inthisway,equipment’senclosurecanbeprotectedwell.
3.5Ifequipmentsonwoodenpanelneedweldingsupports,layoutboardshouldbemadepreviouslyinordertoensuretheappearancequalityofequipmentinstallationafterjoinerworkshavebeenfinished.
3.6Theinstallationofequipmentshouldtakeconsiderationofconvenientoperationandmaintenanceaswellassafetyandtakenecessarymeasurestopreventincidentfromoccurringbymistakenoperation.Theinstallationareamusthaveadequatelightingandgoodventilation.
3.7Toprotectequipmentagainstdamagecausingbymechanicalharmwhenequipmentisinstalled.
3.8Incabins,equipmentcan′tbeinstalledatsuchplaceswhererain,seawaterisdroppingandsteam﹑oilpipeconnectionsorvalvesarefitted.
3.9Toavoidinstallingequipmentatsuchpositionswheretemperatureandhumidityareveryhigh.
3.10Explosion-proofequipmentmustbeprovidedininflammableandexplosivedangerousspaces.(Suchasstoragebatteryroom,paintstore).
3.11Otherkindsofelectricequipmentscan′tbeinstalledinsuchspaceswheresteamgatherseasily.(Otherthanwaterproofequipments,whichmustbemountedhere.)
3.12Electricequipmentmustn’tbeinstallednearoutersurfaceofoiltanksordoublebottom.Ifany,thedistancebetweenequipmentandthesurfaceofbulkheadcan′tbenolessthan50mm.Thoseelectricequipmentsengenderinghightemperatureduringworktimearenotallowedtomountonthesurfaceofabovementionedoiltanks.
3.13Equipmentscan′tbeinstalledinthewayofpassageway,toensurethewidthandheightofpassagewayandtopreventpeoplefromtripping,fellingandknockingbyequipment.Ifequipmenthastobeinstalledatsuchpositions,barrierormarkshouldbeprovided.
3.14Toavoidinstallingequipmentwithelectroniccomponents(e.g.Semiconductor)atsuchplaceswhereresistorboxes,steampipesandotherheatresourcesarefixedandcorrosivesmellisemerging.
3.15Adjustableresistance,electricheaterorotherelectricequipmentsengenderinghightemperatureduringworktimeshouldbeinstalledfarawayfromwoodenpaneletc.inflammableobjectsandotherfacilities.Ifnecessary,touserockwoolpaneletc.thermalinsulatedmaterialinthemiddleoftheseequipments.Whenthetemperatureofequipment′senclosurereachesto80℃,protectivenetshouldbeprovidedormountthisequipmentattheappropriatepositionsoasnottoburnpeoplecausedbyaccidentaltouch.
3.16Ifvibrationattheinstalledplaceisviolentenoughtoinfluenceequipment’snormalworking,someshockpreventionmeasuresmustbeadopted.Andtoprovidesomedeviceswiththeabilityofpreventingequipmentfromloosingbyshockinordertoensureequipment’snormalworking.
3.17Theinstallationofequipmentshouldbedismountableandhasreliabletightnessandconnection.
3.18Theinstallationofequipmentcan’tdestructtheprotectiveperformanceandstrengthofbulkheadordeck.Electricequipmentcan’tbefixedbyscrewontheoutsidewallofwatertightbulkhead,deckanddeckcabin.Directlyweldingandinstallingequipmentonship’sshellarenotallowed.Ifnecessary,itshouldbefixedtohullthroughfoundation.
3.19Totakeanti-corrosionmeasuresfortheinstallationofequipment’smetalbracket,foundation,
fixture,suchaspainting,galvanizingandchromeplating.
3.20Afterbracketandfoundationforequipment’sinstallationhasbeenweldedonhullstructure,weldingslagshouldbecleanedthenequipmentcanbemountedafterpainting.
3.21Equipmentshouldkeepadistancefromhullwhenitisstalledonthehull.Thedistanceofswitch,socketshouldover30mm.Thedistanceofcontrolboxetc.shouldover50mm.
3.22Ifthebracketorfoundationforequipment’sinstallationisanintegration,itcan′tbeweldedonhullstructurebysinglefulcrumwelding.
3.23Withregardtobolt,screw,etc.usingforequipment′sinstallation,whenscrewwastightened,above1.5—2circlesscrewthreadshouldbeleftfromthesurfaceofscrewtothetopofbolt.
3.24Equipmentfittedonwoodenpanel(orwollastonitepanel)
weight<1kgtobefixedonpanelbywoodenscrew
weight<5kgtobefixedafteraddingstrengtheningwoodengratinginsidethepanel
weight>5kgtobeinstalledafterweldingmetalbracketinsidethepanel
3.25Closedpanelfittedincabin′scorridorandjunctionboxinsideceilingshouldhaveaccessibleopeningpanelandclearopenmark.Theconnectionbox(case)shouldbemarkedclearandlastingnumbercomplyingwiththedrawings.
3.26Equipmentshouldbeinstalledintimeassoonasitgetsonboard.Itcan′tbestowedatexposedspaces.
3.27Withregardtothoseequipments,whichhavedesignedinstallationdimensioninloftingplan,ifthere’sdifferencebetweenthedesigneddimensionandactualsiteposition,theinstallationworkingshouldstopandreportthiscasetotechnicaldepartment.Aftergettingdesignmodificationnotificationtogoonwithworking.Anyonehasnorighttomakechange.
3.28Highvoltagecontactor,boilerignitiontransformeretc.andotherhighvoltageelectricequipmentwithvoltageabove500Vmustbemarkedwith“highvoltagedangerous”warningsignaccordingasthedrawings.
3.29Theterminalofcablecoreshouldhaveclearandpermanentmark.Thismarkshouldcorrespondwithmarksonequipment’sconnectionstudandcircuitdiagram.
3.30Equipmentfittedoncompoundrockwoolpanel
3.30.1weight<5kgtobefixeddirectlyonrockwoolpanelstructurebyself-tappingscreworpopaluminumrivet.
3.30.2weight≥5kgorweight<15kgtobefixedonrockwoolpanelstructureandreinforcedpanelbysleeveafterrivetingreinforceddoublepanelontheinnersurfaceofrookwoolpanel.
3.30.3weight≥15kgtobefixedonrockwoolpanelstructureandsupportafterweldingsupportontherearsteelwallofrockwoolpanelstructure.
4Additionalrequirementsfortheinstallationofelectricequipment
4.1Generator
4.1.1Thespinaxisshouldparalleltoship’sbowandsternlineswhengeneratorsetisbeinginstalled.Sodoesotherhorizontalmotor’sspinaxis.Thespinaxisofverticalgeneratorshouldbeperpendicularwithvesselplane.
4.1.2Weldingcan’tbecarriedoutongener
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- 电气设备 安装 工艺