某低温罐区配套电气施工方案(中英文)_secret

SPI1of251、工程概况General某低温罐区包括乙烯罐、丙稀罐、氨罐，其配套工程由某公司负责施工。其中电气工程主要工程量包括动力、照明配电箱各一只，动力电缆815米，照明电缆6545米，电缆桥架1238米，配线槽220米，灯具204套，接地极24根，接地干线1500米，接地线1200米，防爆断路器4只。SECCOCryogenicTankFarmincludesEthylenetank,PropylenetankandAmmoniatank.SPIisresponsiblefortheconstructionofthecommonproject.TheelectricalworkincludesonepowerDistributionBoxandonelightingDistributionBox;PowerCable815m,Lightingcable6545m,CableTray1238m,wiringduct220m,luminaire204sets,GroundingLug24pieces,GroundingMainCable1500m,GroundingCable1200m,Blastproofcircuitbreaker4pieces.2、适用范围Scope本方案为某低温罐区电气安装工程提供作业指导。只适用于某低温罐区配套电气安装工程的安装、检查，参与安装的施工人员应遵照执行。Thisplanispreparedasaguidanceforelectricalinstallation.ItisonlyapplicableforSECCOCryogenicTankFarmE&Iinstallationandinspection.Allpersonnelinvolvedintheelectricalinstallationshallcomplywiththeplan.3、施工标准ReferenceGB50150-91电气装置安装工程电气设备交接试验标准ElectricalDeviceInstallationProjectElectricalEquipmentHandoverTestStandardGB50168-92电气装置安装工程电缆施工及验收规范ElectricalCableInstallation&AcceptanceCodeforElectricalDeviceInstallationProjectGB50169-92电气装置安装工程接地设备施工及验收规范SPI2of25GroundingEquipmentInstallation&AcceptanceCodeforElectricalDeviceInstallationProjectGB50171-92电气装置安装工程配电盘装备、盘柜及二次电路施工及验收规范DistributionPanel,EnclosureandSecondaryCircuitInstallationandAcceptanceCodeforElectricalDeviceInstallationProjectGB50254-96电气装置安装工程低压电器施工及验收规范LowVoltageElectricalInstallationandAcceptanceCodeforElectricalDeviceInstallationProjectGB50257-96电气装置安装工程爆炸和火灾危险环境电气设备施工及验收规范BlastandFireDangerousEnvironmentElectricalEquipmentInstallationandAcceptanceCodeforElectricalDeviceInstallationProjectGB50259-96电气装置安装工程电气照明设施施工验收规范ElectricalLightingInstallation&AcceptanceCodeforElectricalDeviceInstallationProject某标准：SECCOSpecificationSD-00-TSC-EE-0001电气工程ElectricalWorkSD-00-TSC-EE-0003电缆标准ElectricalCableStandardSD-00-TSC-EE-0021接地和防雷保护GroundingandThunderProtectionSD-00-TSC-EE-0020照明标准LightingStandardSD-00-TSC-EE-0012低压电动机控制中心LowVoltageMotorControlCenterSD-00-TSC-EE-0015电伴热SPI3of25ElectricalHeatTracing设计院图纸SSECDrawing4、先决条件Precondition4.1电气施工人员必须是熟悉本方案及有关图纸的合格电工。Electricalpersonnelshallbequalifiedelectricianswhoarefamiliarwiththisinstallationplanandrelevantdrawings.4.2主要设备工机具MajorToolsandEquipment工机具名称Description规格Size单位Unit数量Qty电动角向磨光机ElectricalAngularGrinderΦ125台1电动砂轮切割机ElectricalCutterΦ400台1对讲机Walkie-Talkie对1自动套丝机AutomaticThreadingMachine台1压钳CableCompressionPliers16~240mm2台1套筒扳手SocketSpanner32组件sets套1活动扳手MonkeySpanner12″把3电缆号码烫印机CableNo.Printer台1电铬铁ElectricalIron把2焊机WeldingMachine台1磁力线坠MagneticPlumb个1水平尺LevelGauge400mm只2钢锯Hacksaw10″把2大锤SledgeHammer20磅pound把1电钻PowerDrill13mm台1电锤PowerHammerTE25台1SPI4of25万用表Multimeter只2接地电阻测试仪GroundingResistanceDetector只1兆欧表Megaohmmeter500V只1兆欧表Megaohmmeter1000V只1设备与工机具是合格的并需定期检查。Ensurethatequipmentandtoolsarecertifiedandareregularlyinspected.4.3工作环境WorkingEnvironment施工现场应清理干净、照明充足、有防水措施。Siteshallbecleanwithsufficientlightingandwaterproofmeasures.4.4安全防范措施SafetyProtectiveMeasures执行公司的安全生产各项规定，严禁违章作业。高处作业时，应佩带安全带。在带电区域工作时，应特别注意防止触电。FollowSPI’ssafeproductionregulations.Violationsareprohibited.Wearsafetyharnesseswhileworkingatheight.Specialcareshouldbetakentopreventelectricshockwhileworkingatelectricalareas.4.5材料完备,材料质保书及验收报告完整。Materialiscomplete,materialqualitycertificateandacceptancereportareavailable.5、接地系统的安装GroundingSystemInstallation5.1接地极的安装GroundingLugInstallationSPI5of25十八根接地极采用铜包钢材质，氨罐周围六根接地极为不锈钢材质，直径不小于21mm，长度为3米。Copper-cladsteelmaterialisusedforthe18piecesgroundinglugs.6piecesgroundinglugsaroundtheAmmoniatankisSSmaterialwithadiameterof21mmminimum.Lengthis3m.安装方式根据图纸02675-377-13的要求，将接地极与70mm²电缆焊接到一起，再将接地极垂直打入土壤中，如果土质太硬打不下去，则挖开接地井内一定深度的土壤再打入，70mm²电缆的另一端压接铜端子，用螺栓连接到接地排上，将挖出的土壤回填，然后盖上黄沙及接地井的盖板。安装后，测试土壤的接地电阻，接地电阻应小于10欧姆。Installationaspertherequirementondrawing,02675-377-13.Weldthengroundinglugto70mm²cable.Thenthegroundinglugshallbedrivenintothesoilvertically.Ifthesoilistoohard,thegroundingwellshallbedugtocertaindepth.Theotherendofthe70mm²cableshallbeconnectedtocopperterminal..Connecttogroundingbarwithbolts.Thenbackfillwithsoilandcoverwithsandandgroundingwellcoverplate.Measurethegroundingresistanceofthesoilafterinstallation.Thegroundingresistanceshallbe10Ohmmaximum.5.2罐的接地TankGrounding罐的接地板在螺栓连接之前要彻底清除所有的锈和涂料。按照图纸02675-377-09的要求，接地导体露出地面部分要有一段PVC管保护。沿罐周围敷设70mm²的电缆，在罐的混凝土基础下侧或边缘每隔1.2m用膨胀螺栓和电缆卡子固定电缆。Rustandcoatingsshallberemovedfromthetankgroundingplatebeforebolting.Asperdrawing02675-377-09requirement,onesectionofthegroundingconductorabovegroundshallhavePVCpipeprotection.70mm2cablewillbelaidaroundthetank.SecurethecableSPI6of25withexpansionboltsandcableclipsatanintervalof1.2munderorattheedgeofthetankconcretefoundation.5.3接地母排的安装GroundingBusInstallation按照图纸02675-377-12的要求安装AspertherequirementofDrawing02675-377-125.4设备的接地EquipmentGrounding接地分接头到接地排的连接采用70mm²PVC绝缘铜导线，分接头到单独的设备的连接用35mm²PVC绝缘铜导线，在地上接地导体安装时要采用铸铁电缆夹，铜电缆夹，或装设镀锌钢紧固螺帽的电缆夹，电缆夹的间距不超过1.2m。70mm²PVCinsulatedcopperleadwillbeusedforthegroundingconnectortogroundingbus.35mm²PVCinsulatedcopperleadshallbeusedfortheconnectionbetweengroundingconnectorandindividualequipment.Castiron,copp