35kV及以下交聯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
本產品適用于固定敷設在交流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，交聯電力電纜產品不僅具有優異的電氣性能、機械性能、耐熱老化性能、耐環境應力和耐化學腐蝕性能的能力，而且結構簡單，重量輕，不受敷設落差限制，長期工作溫度高(90C)等特點。
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、生產執行標準
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標準生
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
1、電纜導體的允許長期**工作溫度為90℃。2、短路時(最長持續時間不超過5秒)電纜導體的**溫度不超過250℃。
3電纜敷設時的環境溫度不得低于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。:電纜設計用的導體對地或金屬屏蔽之間的額定工頻電壓，稱相電壓:
U:電纜設計用的導體間的額定工頻電壓，稱線電壓:Um:設備可承受的“**系統電壓”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 | 交聯聚乙烯絕緣聚氯乙烯護套電力電纜 Power cable with XLPE insulation, PVC sheath | 敷設在室內、隧道、電纜溝及管道中，也可埋在松散的土壤中，電纜不能承受機械外力作用。單芯電纜不允許敷設在磁性管道中。 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 | 交聯聚乙烯絕緣聚乙烯護套電力電纜 Powercable with XLPEinsulation PE sheath | |
YJV22 | YJLV22 | 交聯聚乙烯絕緣鋼帶鎧裝聚氯乙烯護套電力電纜 Power cable with XLPEinsulation,steel tapearmor, PVC sheath | 直埋敷設在地下(埋設深度:距地面20.7m),電纜能承受一定機械外力作用，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 | 交聯聚乙烯絕緣鋼帶鎧裝聚乙烯護套電力電纜 Power cable with XLPE insulation steel tapearmored PE sheath | |
備注:1可根據用戶需要,提供鋼絲鎧裝型交聯力纜,如:YJV32、YJLV32、YJV33、YJLV33
2、需要阻燃型電纜，應在原型號前加“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、電纜結構示意圖 The Figure of Cable Structure
六、生產范圍 Production Scope
七、電纜主要技術參數
1、20C時導體**直流電阻值應滿足GB/T3956標準中的2類導體的規定:
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:環境溫度下,5min。Testing condition: under environment temperature for 5min 試驗要求:絕緣應無擊穿。 Testing requirement: insulation without puncture | |||||||||
3、局部放電量應在1.73U。電壓下測量局部放電量，其數值應不高于以下規定:
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
不同土壤熱阻系數下的載流量修正系數
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
Current-loading capacity correcting coefficient under different soil temperature
4.1 低壓交聯電力電纜(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
Current-loading capacity correcting coefficient under different air temperature
4.2 中壓交聯電力電纜(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
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.
