塑力线缆66KV-500KV技术参数

1额定电压66～500kV交联聚乙烯绝缘电力电缆Cross-linkingpolyethyleneinsulatedpowercableswithratedvoltagesfrom66kVupto500kV一、产品用途Productsapplication本产品主要用于额定电压66～500kV电力线路传输和分配电能用。Thisproductisapplicabletobeingfixedlylaidonthtransmissionanddistributionlineofratedvoltagesfrom66kVupto500kVwiththeuseforpowertransmissionanddistribution.适用于固定敷设电力输送如隧道、管路、直埋等场所。可以高落差或垂直敷设。Layingsiteforinstanceintunnel,pipelineandsoiltotransportelectricalenergy.Allowforhighfallorverticalinstallition.二、电缆技术特点CharacteristicofTechnology大截面电缆采用五分割导体的生产技术，工艺成熟，质量稳定。Thelargesizeconductorfivesegmentaltechnology，whichhasadvantagesofverymatureprocessandstablequality。采用超净XLPE绝缘材料和超光滑半导电屏蔽材料以及特殊的过滤技术、特殊的模具设计、重力加料、冷却风机自循环冷却及料间和主机间的高等级净化将绝缘体的杂质、微孔和半导电层的突起控制在最低水平。Insulationcompoundissupercleanandsemi-conductivescreencompoundhassupersmooth。specialfilteringtechnologyanddiedesignandgravityloadingsystemandinternalcoolingcirculationwithblowerisapplied。Operatingroomissupercleanclosedsystem。Thesedesignscompletelyeliminatetheriskofinsulatedcontaminationtsandvoidandsemi-conductiveprotrusion。采用第二导体预热加热技术，不但使绝缘层里外交联度保持基本一致，同时也可降低交联管温度，解决外层过交联的问题。Secondconductorheatingtechnologynotonlymakesouterinsulationuniformcuringdegreebutalsolowercuringtubetemperature，thatsolvesovercuringproblems。采用去气技术去除交联反应时残留在绝缘体中的甲烷气体，并进一步消除绝缘内应力。DegassingprocesswillremovesthemethanegasgeneratedfromcableinsulationcausingbychemicalreactioncourseofXLPEandeliminatesinsulationresidualstress。绝缘屏蔽外绕包半导电缓冲层，其厚度可充分吸收绝缘体热膨胀时的体积。Thesemi-conductivecushiontapeiswrappedonoutersemi-conductorlayeranditsthicknesscansufficientlyabsorbheatingexpansionofinsulation铝护套采用连续挤包轧纹工艺，其厚度、波高及节距设计合理，机械强度大；弯曲半径小；密封防水性能优良，可承载大的短路电流。Aluminumsheathiscontinuallyextrudedandcorrugated，itsthicknessandwaveshapeandpithisrational，ittakesadvantageofhighmechanicalstrengthandwaterproofandasmallerbendingradius，itallowsalargeshortcircuit三、产品执行标准StandardsIEC60840:1999额定电压大于30kV(Um=36kV)至150kV(Um=170kV)挤包绝缘电力电缆及其附件试验方法和要求Powercableswithextrudedinsulationandtheiraccessoriesforratedvoltagesfrom30kV(Um=36kV)upto150kV(Um=170kV)GB/T11017-2002额定电压110kV交联聚乙烯绝缘电力电缆及其附件Powercableswithcross-linkedpolyethyleneinsulationandtheiraccessoriesforrated2voltagesof110kVGB/Z18890-2002额定电压220kV交联聚乙烯绝缘电力电缆及其附件Powercableswithcross-linkedpolyethyleneinsulationandtheiraccessoriesforratedvoltagesof220kVGB/T22078-2008额定电压500kV交联聚乙烯绝缘电力电缆及其附件Powercableswithcross-linkedpolyethyleneinsulationandtheiraccessoriesforratedvoltagesof500kV四、使用特性Operatingcharacteristics1、额定电压RatedVoltage电缆额定电压用U0/U和Um表示。RatedVoltageofcableisdescribedasU0/UandUm.U0—电缆设计用的导体对地或金属屏蔽之间的额定工频电压；U－电缆设计用的导体间的额定工频电压；Um－设备可承受的“最高系统电压”的最大值。Notes：U0：RatedA.C.Voltagebetweenconductorandground/metalscreen;U：RatedA.C.VoltagebetweenconductorsUm：Themaximumsystemvoltagewhichtheequipmentscanbebeared。额定电压如下：U0/U＝50/66，Um＝72.5；U0/U＝64/110，Um＝126；U0/U＝127/220，Um＝252；U0/U＝290/500，Um＝550。2、导体额定工作温度Theratedtemperatureofconductor电缆导体的最高额定工作温度为90℃。短时过负荷温度105℃。短路时（最长持续时间不超过5s）电缆导体的最高温度不超过250℃。Themaximumassignedtemperatureofthecableconductoris90℃.Shorttimeovercurrenttemperatureis105℃.Duringhavingashortcircuit,lastinglessthan5seconds,themaximumtemperatureofthecableconductorshallnotbeabove250℃.3、安装弯曲半径Thebendradius安装时电缆最小弯曲半径为电缆直径的25倍。Theminimumbendradiusis25D.4、电缆敷设时导体最大允许牵引力和电缆最大允许侧压力Themaximumallowedhaul-offforceandlateralpressureofcable导体最大允许牵引力计算方法：Thecalculatingmethodofthemaximumallowedhaul-offforce:——铜导体(Cu)：F=70×S（N/mm2）。——铝导体(Al)：F=40×S（N/mm2）。侧压力计算方法：Thecalculatingmethodofthemaximumallowedlateralpressure：P=F÷R（N/m），最大允许侧压力不超过3000N/m。P=F÷R（N/m），Themaximumallowedlateralpressure≤3000N/m式中：F－牵引力，N；F－Lateralpressure，N；S－导体截面，mm2；S－Conductorsection，mm2；3P－侧压力，N/m；P－lateralpressure，N/m；R－电缆弯曲半径，m。R－Bendradius，m。五、产品表示方法Expressedmethodofproduct1、代号Code导体代号Conductorcode铜导体（省略）Copperconductor(omitted)………………………………………………………………T铝导体Aluminumconductor………………………………………………………………………………L绝缘代号Insulationcode交联聚乙烯绝缘Cross-linkingpolyethylene(XLPE)insulated…………………………………………YJ护套代号Sheathcode聚氯乙烯外护套polyvinylchlorideoutersheath………………………………………………………02聚乙烯外护套polyethyleneoutersheath………………………………………………………………03皱纹铝套corrugatedAlsheath……………………………………………………………………………LW皱纹铜套corrugatedCoppersheath……………………………………………………………………TW皱纹不锈钢套corrugatedstainlesssteelsheath…………………………………………………………GW纵向阻水结构longitudinalwaterblockedconstruction………………………………………………………Z2、产品表示方法Expressedmethodofproduct产品用型号、规格（额定电压、芯数、标称截面）和标准编号表示。Theproductisdescribedastype,specification(ratedvoltage,coresnumbers,sectionalarea)andstandardscode.示例Example:a）额定电压64/110kV，单芯，铜导体，标称截面800mm2，交联聚乙烯绝缘皱纹铝套聚氯乙烯护套电力电缆，表示为：YJLW0264/1101*800GB/T11017.2-2002b）额定电压127/220kV，单芯，铜导体，标称截面2500mm2，交联聚乙烯绝缘皱纹铝套聚乙烯护套纵向阻水电力电缆，表示为：YJLW03-Z127/2201*2500GB/T18890.2-2002a)RatedVoltages64/110kV,siglecore,copperconductor,Nominalcrossarea800mm2,XLPEinsulatedcorrugatedAlsheathandPVCsheathedpowercables,seethefollowing:YJLW0264/1101*800GB/T11017.2-2002b)RatedVoltages127/220kV,siglecore,copperconductor,Nominalcrossarea2500mm2,XLPEinsulatedcorrugatedAlsheathandPVCsheathedlongitudinalwaterblockedpowercables,seethefollowing:YJLW03-Z127/220