35kV及以下交聯(lián)聚乙烯絕緣電力電纜XLPE Insulated Power Cable with Rated Voltage up to 35 kV
一、適用范圍
本產(chǎn)品適用于固定敷設(shè)在交流50Hz，額定電壓35kV及以下的電力輸配電線路上作輸送電能用。與聚氯乙烯絕緣電力電纜相比，交聯(lián)電力電纜產(chǎn)品不僅具有優(yōu)異的電氣性能、機(jī)械性能、耐熱老化性能、耐環(huán)境應(yīng)力和耐化學(xué)腐蝕性能的能力，而且結(jié)構(gòu)簡單，重量輕，不受敷設(shè)落差限制，長期工作溫度高(90C)等特點(diǎn)。
Scope ofapplication
The cable is used to transmit power on the powertransmission and distribution line of A.C.50Hz, rated voltage 35 KV or lower. By comparison with power cable withPVC insulation, it has not only excellent electric perfor-mance, mechanical performance, heat & aging resistantperformance,weather resistant performance,chemicalcorrosion resistant performance, but also simple structure.light weight, no restriction by laying drop, and high tem-perature allowance for long term working(90C) as well
二、生產(chǎn)執(zhí)行標(biāo)準(zhǔn)
GB/T12706.1-2008-GB/T12706.3-2008《額定電壓1kV(Um=1.2 kV)到35kV(Um=40.5 kV)擠包絕緣電力電纜》，也可按用戶需要，采用**電工委員會IEC60502-2004標(biāo)準(zhǔn)生
Executive standard
As section“extruded insulation power cable withrated voltage from 1kV(Um=1.2 kV)to 35kV(Um=40.5 kV)”stipulated in GB/T12706.1-2008-GB/T12706.32008 or IEC60502-2004 according to the re- quirement ofthe customer.
三、使用特點(diǎn)
1、電纜導(dǎo)體的允許長期**工作溫度為90℃。2、短路時(最長持續(xù)時間不超過5秒)電纜導(dǎo)體的**溫度不超過250℃。
3電纜敷設(shè)時的環(huán)境溫度不得低于0℃
4、電纜的最小彎曲半徑:三芯電纜不小于電纜外徑的15倍:單芯電纜不小于電纜外徑的20倍。
5、電纜的工頻額定電壓U/U為0.6/1kV26/35kVU。:電纜設(shè)計用的導(dǎo)體對地或金屬屏蔽之間的額定工頻電壓，稱相電壓:
U:電纜設(shè)計用的導(dǎo)體間的額定工頻電壓，稱線電壓:Um:設(shè)備可承受的“**系統(tǒng)電壓”的**值。
Working Condition
1, Long-term working temperature by cable conductor is 90℃.
2、Max. temperature of cable conductor shall be no morethan 250℃ during short circuit (the longest lasting timeshall be no more than 5 seconds).
3、Environment temperature for installation is no less than0℃
4、Min bending radium of cable:It is no less than 15 times that of cable outer diameterfor cable with three cores.lt is no less than 20 times that of cable outer diameterfor cable with single core.
5、A.C. rated voltage Uo /U of cable is 0.6/1kV26/35kV.Uo : rated A.C.voltage of conductor to earth ORbetween metallic shielding for cable designing, whichis called phrase voltage.
U: rated A.C. voltage between conductors for cabledesigning, which is called wire voltage.Um : Max endurable value of “Max system voltage”for cable
四、電纜型號名稱及適用場合Type，Description and Application Occasion
| 型號 Type | 名稱 Description | 適用場合 Application occasion | |
| 銅Cu | 鋁AI | ||
YJV | YJLV | 交聯(lián)聚乙烯絕緣聚氯乙烯護(hù)套電力電纜 Power cable with XLPE insulation, PVC sheath | 敷設(shè)在室內(nèi)、隧道、電纜溝及管道中，也可埋在松散的土壤中，電纜不能承受機(jī)械外力作用。單芯電纜不允許敷設(shè)在磁性管道中。 To belaid indoors, in the tunnel, cable furrow, pipe or under soft soil. Thecable can not bear mechanical force from outside. Single core cableisn’t permitted to be laid in the magnetic pipe. |
YJY | YJLY | 交聯(lián)聚乙烯絕緣聚乙烯護(hù)套電力電纜 Powercable with XLPEinsulation PE sheath | |
YJV22 | YJLV22 | 交聯(lián)聚乙烯絕緣鋼帶鎧裝聚氯乙烯護(hù)套電力電纜 Power cable with XLPEinsulation,steel tapearmor, PVC sheath | 直埋敷設(shè)在地下(埋設(shè)深度:距地面20.7m),電纜能承受一定機(jī)械外力作用，但不能承受大的拉力。 To be laid underground(depth of burying: at least 0.7m above earth)!the cable can bear certain mechanical force, but it can not bear greatpulling force. |
| YJV23 | YJLV23 | 交聯(lián)聚乙烯絕緣鋼帶鎧裝聚乙烯護(hù)套電力電纜 Power cable with XLPE insulation steel tapearmored PE sheath | |
備注:1可根據(jù)用戶需要,提供鋼絲鎧裝型交聯(lián)力纜,如:YJV32、YJLV32、YJV33、YJLV33
2、需要阻燃型電纜，應(yīng)在原型號前加“ZR-”表示。
Note:1: We also produce steel wire armored cross-linked power cable such as YJV32,YJLV32,YJV33, YJLV33 according to the recuirement of the customer.
2: Prefix “ZR”(flame retardant type) shall be added to the original type when flame retardant type cable is needed.
五、電纜結(jié)構(gòu)示意圖 The Figure of Cable Structure
六、生產(chǎn)范圍 Production Scope
七、電纜主要技術(shù)參數(shù)
1、20C時導(dǎo)體**直流電阻值應(yīng)滿足GB/T3956標(biāo)準(zhǔn)中的2類導(dǎo)體的規(guī)定:
Main Technical Parameter of Cable
Max value of conductor DC resistance at 20C shall meetthe requirement of category 2 conductor stipulated in GB/T3956 standard.
2、工頻交流耐壓試驗 A.C.Voltage Test under Power Frequency
額定電壓kV Rated voltage kV | 0.6/1 | 1.8/3 | 3.6/6 | 6/6 6/10 | 8.7/10 8.7/15 | 12/20 | 18/30 | 21/35 | 26/35 |
試驗電壓kV Tested voltage kV | 3.5 | 6.5 | 12.5 | 21 | 30.5 | 42 | 63 | 73.5 | 91 |
試驗條件:環(huán)境溫度下,5min。Testing condition: under environment temperature for 5min 試驗要求:絕緣應(yīng)無擊穿。 Testing requirement: insulation without puncture | |||||||||
3、局部放電量應(yīng)在1.73U。電壓下測量局部放電量，其數(shù)值應(yīng)不高于以下規(guī)定:
Partial discharging capacity shall be tested at the voltageof 1.73Uo , and its value shall be no more than that stipulatedin the following table:
額定電壓 kV Rated voltage | 3.6/6 | 6/6 6/10 | 8.7/10 8.7/15 | 12/20 | 18/30 | 21/35 | 26/35 |
放電量 pcPartial discharging capacity | 10 | ||||||
4、電纜載流量
Current-loading Capacity of Cable
不同土壤熱阻系數(shù)下的載流量修正系數(shù)
Currentloading capacity correcting coefficient under different heat-resistant coefficient of soil
不同土壤溫度下的載流量修正系數(shù)
Current-loading capacity correcting coefficient under different soil temperature
4.1 低壓交聯(lián)電力電纜(0.6/1kV)
Low voltage XLPE Power Cable (0.6/1kV)
不同空氣溫度下的載流量修正系數(shù)
Current-loading capacity correcting coefficient under different air temperature
4.2 中壓交聯(lián)電力電纜(3.6kV-35kV)
Middle voltage cross-linked Power Cable(3.6kV~35kV)
不同空氣溫度下的載流量修正系數(shù)
Current-loading capacity correcting coefficient under different air temperature
注:1、空氣溫度為40C;
2、單芯電纜平型排列時，相鄰電纜間的距離等于電纜外徑Note: 1. Air temperature is 40C.
2.Distance between two close cables amount to outer diameter ofcable when being arrayed in parallel for cable with single core.
土壤中 In the soil
注:
1、土壤溫度為25C，土壤熱阻系數(shù)為1.0C.m/w。
2、單芯電纜平型排列時，相鄰電纜間的距離等于電纜外徑。
3、鎧裝型電纜的載流量值可參照非鎧裝電纜，比非鎧裝電纜略小。
Note:
1.Soil temperature is 25'C. Heat-resistant coefficient of soil is 1.0C.m/w.
2.Distance between two close cables amount to outer diameter of cable when being arrayed in parallel for cable with single core
3. You can refer to that of inarmored cable about curent-loading capacity of armored cable, which is relevantly smaller compared with that of inarmored cable.
