第9章、额定电压0.6：1 kV交联聚乙烯绝缘电力电缆.docx

9、额定电压0.6/1 kV交联聚乙烯绝缘电力电缆9.1产品执行标准GB/T 12706.1-2008 额定电压1 kV(Um=1.2 kV)到35 kV(Um=40.5 kV)挤包绝缘电力电缆及附件IEC 60502-1:2004 额定电压1 kV(Um=1.2 kV)到30 kV(Um=36 kV)挤包绝缘电力电缆及附件GB/T 3956-2008 电缆的导体GB/T19666-2005 阻燃耐火电线电缆通则9.2 使用特性1、 导体额定工作温度电缆导体的最高额定工作温度为90。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。2、 敷设环境温度电缆敷设时的环境温度应不低于0，否则需要事先预热。3、 安装弯曲半径 安装时电缆最小弯曲半径见表2。表2 电缆安装时最小弯曲半径项目单芯电缆三芯电缆无铠装有铠装无铠装有铠装安装时的电缆最小弯曲半径 20D15D15D12D靠近连接盒和终端的电缆的最小弯曲半径15D12D12D10D注：D为电缆外径（mm）4、 电缆的工频额定电压U0/U为0.6/1KV，Um=1.2kVU0:电缆设计用的导体对地或金属屏蔽之间的额定工频电压，称相电压；U：电缆设计用的导体间的额定工频电压，称线电压；Um：设备可承受的“最高系统电压”的最大值；5、电缆阻燃耐火性能满足GB/T19666-2005标准对A类、B类、C类、WDZC类相应标准要求。9.3 电缆型号名称及适用场合型号产 品 名 称适用范围及环境铜 芯铝 芯YJVYJLV交联聚乙烯绝缘聚氯乙烯护套电力电缆室内、隧道及电缆沟等场所，不能承受机械外力。单芯电缆不允许敷设在磁性管道中。YJYYJLY交联聚乙烯绝缘聚乙烯护套电力电缆YJV22YJV62YJLV22YJLV62交联聚乙烯绝缘双钢带铠装聚氯乙烯护套电力电缆室内、隧道、电缆沟内，或埋地敷设等，能承受一定机械外力，但不能承受大的拉力。YJV23YJLV23交联聚乙烯绝缘双钢带铠装聚乙烯护套电力电缆YJV32YJV72YJLV32YJV73交联聚乙烯绝缘细圆钢丝铠装聚氯乙烯护套电力电缆室内、隧道、电缆沟、竖井或埋地敷设等，能承受机械外力和一定的拉力YJV33YJLV32交联聚乙烯绝缘细圆钢丝铠装聚乙烯护套电力电缆YJV42YJLV42交联聚乙烯绝缘粗钢丝铠装聚氯乙烯护套电力电缆YJV43YJLV43交联聚乙烯绝缘粗钢丝铠装聚乙烯护套电力电缆9.4 生产范围 型 号芯数标称截面 (2)YJV, YJY-YJV22, YJV23-YJLV, YJLYYJLV22, YJLV2311.5-8002.5-80010-800YJV, YJY-YJV22 YJV23YJV32 YJV33-YJLV, YJLYYJLV22 YJLV23YJLV32 YJLV3321.5-3002.5-3004-30010-300YJV, YJY-YJV22 YJV23YJV32 YJV33YJV42 YJV43- YJLV, YJLYYJLV22 YJLV23YJLV32 YJLV33YJLV42 YJLV4331.5-4002.5-4004-40010-40010-400YJV, YJY-YJV22 YJV23YJV32 YJV33YJV42 YJV43- YJLV, YJLYYJLV22 YJLV23YJLV32 YJLV33YJLV42 YJLV4341.5-4002.5-4004-40010-40010-400YJV, YJY-YJV22 YJV23YJV32 YJV33YJV42 YJV43- YJLV, YJLYYJLV22 YJLV23YJLV32 YJLV33YJLV42 YJLV4351.5-4002.5-4004-40010-40010-400YJV, YJY-YJV22 YJV23YJV32 YJV33YJV42 YJV43- YJLV, YJLYYJLV22 YJLV23YJLV32 YJLV33YJLV42 YJLV433+11.5-4004-4004-40010-40010-400YJV, YJY-YJV22 YJV23YJV32 YJV33YJV42 YJV43- YJLV, YJLYYJLV22 YJLV23YJLV32 YJLV33YJLV42 YJLV434+1、3+21.5-4004-4004-40010-40010-400以上所有的型号和产品规格中，阻燃电缆型号前加ZA、ZB、ZC、ZD、WDZC，耐火电缆电缆型号前加NH。9.5产品结构1、导体 导体应是符合GB/3956 的第一种或第2种裸退火铜导体或镀金属层退火铜导体，或这两种之一的裸铝导体或铝合金导体；或者第5种裸铜导体或镀金属层退火铜导体。2、耐火层 耐火电缆导体外双层绕包耐火云母带，云母带绕包必须平整、紧密，不允许有折皱、漏包等缺陷。3、绝缘绝缘采用交联聚乙烯绝缘，绝缘应紧密挤包在导体上，且应容易剥离而不损伤绝缘体、导体或镀层。4、隔离套（有铠装电缆）采用聚氯乙烯（PVC）或聚乙烯（PE）挤包或聚氯乙烯（PVC）或聚乙烯（PE）带绕包在缆芯上。5、铠装 多芯电缆采用镀锌钢带或镀锌钢丝，用于交流回路的单芯电缆采用非磁性金属带或金属丝。 金属带采用双层间隙绕包，金属丝采用多根同心绞合。 注：大量事实证明，采用某种特殊结构铠装（如添加铜丝的隔磁结构）的单芯电缆用于交流回路时均出现电缆发热导致载流量大为下降的现象，所以不推荐采用。6、外护套采用ST2型聚氯乙烯护套料或ST7型聚乙烯（PE）护套料挤包在铠装、绝缘或缆芯上。7、成品电缆的标志成品电缆的外护套表面印有厂名、型号、额定电压、芯数、标称截面和米数的连续标志9.6产品结构示意图 普通电缆及阻燃和低烟无卤电缆产品结构示意图上图电缆型号：YJV、YJLV、YJY、YJLY1导体 2包带 2绝缘 4护套 上图电缆型号：YJV22、YJLV22、YJV23、YJLV23、YJV32、YJLV32 YJV33、YJLV33 1导体 2绝缘 3包带 4内衬层 5铠装 6护套耐火电缆产品结构示意图上图电缆型号：NH-YJV、NH-YJY1导体 2耐火云母带 3绝缘 4包带 5护套 上图电缆型号：NH-YJV23、NH-YJV221导体 2耐火云母带 3绝缘 4包带 5内衬层 6铠装 7护套9.7 产品主要技术性能 电缆主要技术性能参数见下表。电缆通用技术性能参数序号项目单位指标1导体直流电阻/km见表62交流电压试验A.C.试验电压试验时间试验结果kVmin3.55绝缘不发生击穿3四小时高电压试验试验电压试验时间实验结果kVh2.44试样应不击穿55.15.2绝缘热延伸试验试验条件空气温度载荷时间机械应力负载下伸长率(最大)冷却后永久伸长率(最大)minN/cm2%2003152017515成束阻燃性能要求代号试样非金属材料体积/（L/m）供火时间/s合格指标试验方法ZAZBZCZD73.51.50.5404020201) 试样上炭化的长度不应超过距喷嘴底边上2.5m;2) 停止供火后试样上的有焰燃烧时间不应超过1hGB/T 18380.3IEC 60332-3-25ZD适用于试样外径不大于12mm的电线电缆.耐火特性耐火类别火焰温度 供火时间(min)电缆在额定电缆下A类950-1000903A熔丝不熔断B类750-1000903A熔丝不熔断导体电阻导体标称截面/mm220导体直流电阻/km导体交流电阻/km铜导体铝导体铜导体铝导体101.833.082.3333.964161.151.911.4662.458250.7271.200.9271.54350.5240.8680.6681.11500.3870.6410.4930.822700.2680.4430.3420.568950.1930.3200.3470.4111200.1530.2530.1960.3251500.1240.2060.1590.2651850.09910.1640.1280.2112400.07540.1250.09850.1623000.06010.1000.07970.1304000.04700.07780.06400.1025000.03660.06050.05040.07996300.02830.04690.04060.06348000.02210.03670.03360.0509电缆载流量不同土壤温度下载流量的修正系数土壤温度 20 25 30 35 40 修正系数 1.041.00.960.920.879.8结构尺寸 交联聚乙烯绝缘电缆的绝缘厚度见下表：导体标称截面mm21.5-1625，355070,95,120150185绝缘标称厚度mm0.70.91.01.11.21.41.6导体标称截面mm22403004005006308001000绝缘标称厚度mm1.71.82.02.22.42.62.80.6/1kV交联聚乙烯绝缘电力电缆电缆参考外径和近似重量芯数截面mm2电缆参考外径mm电缆近似重量kg/kmYJV系列YJV22系列YJV32系列YJVYJLVYJV22YJLV22YJV32YJLV3211.55.8-46-12.56.2-5943-146.7-7651-167.2-9763-1108.511.313.1146842421803432811169.612.414.220710931521742732912510.813.615.430114742126754739413511.914.717.439618352731578156815013.316.518.852923369540096166617015.218.420.7732314921503121579719517.120.123.1992403119460516521064112018.621.624.61229488144870619461205115020.823.626.61526605175883722931372118522.925.728.71880737213699227231579124025.528.131.124249262695119633491850130028.130.734.7301611303313142642632376140031.734.338.7391014604243179353232873150035.439.442.2490018385640257764443381163039.543.147.161582297693930798261440021.59.511.513.5102-189-301-22.510.312.314.3127962231923433122411.213.215.21711222752264033542612.214.217.121614533026057951921014.816.819.732720246634177364921616.918.921.846726962642896476622519.421.4256713628555461385107623521.623.627.287644910816541666123925019.622.125.3105545812736761796119927022.224.928.9146060817188662522167129526.629.133.12006823230011173160197721202932.935.7249610033117162537702277215031.835.439.4308312323743189247852934218535.239.243.2380214994568226557203417224040.644.648.6493319315814281170864084230043.647.851.8611923397084330384764695 31.59.911.913.9120-212-326-32.510.812.814.81591132592133853393411.813.816.72121393222495845103612.914.917.827917340029566756131015.717.720.6429242577390900713316182023.6621325791495129599832520.622.626.2909446110464116771214335232528.611995591418778204514053502325.829155365718229262440154437026.529.233.22167889247411963384210739531.235.438.2295111773641186743302556312033.537.540.3366514274387214851442906315037.24145453917625330255365693792318541.84650564421906574312079454490324047.55256730027968380387699065402330052.156.560.59079340810257458611918624734005761.967.2117614403131065748156768319续表：芯数截面mm2电缆参考外径mm电缆近似重量kg/kmYJV系列YJV22系列YJV32系列YJVYJLVYJV22YJLV22YJV32YJLV3241.510.612.614.614624436742.511.613.616.51931313012395544924412.714.717.62571593762786435454613.915.918.835020948034177263241017.219.222.1542293705455105180141619.721.725.37923979795831507111242522.724.728.3117355613897722001138443525.327.331.1155670217979442492163945025.928.732.72038843234011453253205847030.234.237.228551152350818054228252549535.539.442.2389115254652228654563090412038.442.446.4484318595667268269643979415042.646.850.8599822966946324383834681418548.152.356.37477287185453939101015495424054.4596396663660109234917126686663430059.864.568.512028446713411584915355779444006671.276.51556957591718573752019110381 51.511.412.615.4165-271-402-52.512.513.717.42221443392615975205413.815.818.73131904423197246025615.117.12042224556438987070451018.720.724.36633528415291357104651621.523.527.197347811776831762126852524.926.930.7144467316829102362159153527.83034.61921855220011333222215555029.632.436.625351042287913863905241257034.638.641.435571428430221735093296459540.544.548.5484518885714275670184061512044.248.552.5603923087027329684384707515048.75357749228648576394810162553451855559.463.493323575105774819123516594524062.26770.8120614554135266019154457938530068.773.678.9150165564166347182196611021032.5+11.511.413.415.4181-287-419-34+12.512.414.417.324515536027161953036+1413.615.618.5328198455327738609310+1616.418.421.3496274651428990768316+110192124.673237391255314441085325+11621.923.927.51080518128872618881326335+116242629.61375636160486522591520350+12525.127.731.118387882128107828031753370+13529.331.736.3254810582882139238892398395+15033.837.640.53441136841632090492028473120+17036.840.444.84357169351232458638937253150+17040.443.848.45221201860812879745042483185+195464954.16598255275653519906650213240+112051.754.959.984823232959443441125260023300+115056.660.2651054539481179651991361870213400+118562.266.172.3135625053149936484178339324续表：芯数截面mm2电缆参考外径mm电缆近似重量kg/kmYJV系列YJV22系列YJV32系列YJVYJLVYJV22YJLV22YJV32YJLV3232.5+21.512.114.117206-318-569-34+22.513.315.318.228217740730268057636+2414.516.519.4378224515362813660310+2617.319.322.25663087294731085828316+21020.422.426849427104262116001179325+21623.625.629.21257597148282221231462335+21625.527.531.31545707178995124991661350+22529.832.636.821409362485128034812276370+23533.437.440.4293812333657195244542750395+25036.640.443.43926155746932324552631573120+2704044485027194458852802719741143150+27042.946.951.15895227368283207828246613185+29548.953.157.175092873859439591017855433240+212054.759.163.2963136381086948761261066173300+215060.364.968.9119854466133765857153147795 42.5+11.512.314.317.2218-333-593-44+12.513.515.518.429918542531