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YJV高壓電纜3x25+1x10 , 三相系統(tǒng)用電纜的U0值*如下表： The values of U0 recommened for cable to be used in three-phase systems are listed below: 　 YJV高壓電纜3x25+1x10 , U kv U m kv U 0 * kv A 和 B 類系統(tǒng) System categories A and B C 類系統(tǒng) Systems categories C 6 7.2 3.6 6 10 12 6 8.7 15 17.5 8.7 12 20 24 12 18 30 36 18 － 35 40.5 21 26 A類系統(tǒng)──該類系統(tǒng)任何一相導體與地和接地導體接觸時，能在1min內(nèi)與系統(tǒng)分離 B類系統(tǒng)──該類系統(tǒng)僅包括單相接地故障短時運行的條件，接地故障時間應不超過1h, 但在任何情況下，zui長不超過8h每年接地故障總持續(xù)時間不超過125h； C類系統(tǒng)──不屬于A類、B類的系統(tǒng)。 System category A──This category comprises those systems in which any phase conductor that comes in contact with earth or an earth conductor. is disconnected from the system within 1 min. System category B ──This category comprises those system which,under faultconditions,are operated,are operated for ashorttimewith one phase earthed.This period should not exceed 1 h..Fora longer period, not exceeding 8h on any occasion, can be tolerated.The total duration of earth faults in any year should not exceed 125h. System categeory C──This category comprises all systems which do not fall into A and B 電纜的型號Type of cable 型號 Type 名稱 Designation 適用范圍 Application YJV 銅芯交聯(lián)聚乙烯絕緣氯乙烯護套電力電纜 Copper conductor,XLPE insulated and PVC sheathed power cable 室內(nèi)、隧道及電纜溝等場所，不能承受機械外力。單芯電纜不允許敷設在磁性管道中。 For laying indoors 、 intunnel or cable trench,unable to bear external mechan-icalforces.Single-core cable in magnetic duct is not permissible YJLY 鋁芯交聯(lián)聚乙烯絕緣乙烯護套電力電纜 Aluminium conductor, XLPE insulated and PVC sheathed power cable YJY 銅芯交聯(lián)聚乙烯絕緣氯乙烯護套電力電纜 Copper conductor ,XLPE insulated and PEsheathed power cable YJLY 鋁芯交聯(lián)聚乙烯絕緣氯乙烯護套電力電纜 Alumimium conductor ,XLPE insulated and PEsheathed power cable YJV22 銅芯交聯(lián)聚乙烯絕緣鋼帶鎧裝聚氯乙烯護套電力電纜 Copper conductor ,XLPE insulated, steel tape armoured and PVC sheathed power cable 室內(nèi)、隧道、電纜溝內(nèi)，或埋地敷設等，能承受一定機械外力，但不能承受大的拉力。 For laying indoors 、 in tunnel, cable trench, or direct in ground,able to bear external mechanicalforces, but unable to bear large pulling force 。 YJLV22 鋁芯交聯(lián)聚乙烯絕緣鋼帶鎧裝聚氯乙烯護套電力電纜 Aluminium conductor ,XLPE insulated ,steel tape armoured and PVC sheathed power cable YJV23 銅芯交聯(lián)聚乙烯絕緣鋼帶鎧裝聚氯乙烯護套電力電纜 Copper conductor ,XLPE insulated ,steel tape armoured and PVC sheathed power cable YJLV23 鋁芯交聯(lián)聚乙烯絕緣鋼帶鎧裝聚氯乙烯護套電力電纜 Aluminium conductor ,XLPE insulated ,steel tape armoured and PVC sheathed power cable YJV32 銅芯交聯(lián)聚乙烯絕緣細鋼絲鎧裝聚氯乙烯護套電力電纜 Copper conductor,XLPE insulated,steel wire armoured and PVC sheathed power cable 室內(nèi)、隧道、電纜溝、豎井或埋地敷設等，能承受機械外力和一定的拉力。 For laying indoors 、 in tunnel, cable french, well or direct in ground,able to bear external mechanical forces, and certain force 。 YJLV32 鋁芯交聯(lián)聚乙烯絕緣細鋼絲鎧裝聚氯乙烯護套電力電纜 Aluminium conductor ,XLPE insulated, steel wire armoured and PVC sheathed power cable YJV33 銅芯交聯(lián)聚乙烯絕緣細鋼絲鎧裝聚氯乙烯護套電力電纜 Copper conductor ,XLPE insulated ,steel wire armoured and PVC sheathed power cable YJLV33 鋁芯交聯(lián)聚乙烯絕緣鋼帶鎧裝聚氯乙烯護套電力電纜 Aluminium conductor ,XLPE insulated ,steel wire armoured and PVC sheathed power cable 生產(chǎn)范圍Production range of cable 型號 Type 芯數(shù) Nomber of cores 額定電壓 Rated Voltage kV 3.6/6 6/6 6/10 8.7/10 8.7/15 12/20 18/20 18/30 21/35 26/35 導體標稱截面 Nominal cross-section of conductlr mm2 YJV YJLV YJY YJLY 1 25-800 25-800 25-800 35-800 50-630 50-630 50-630 3 25-630 25-630 25-500 35-500 50-400 50-400 50-400 YJV22 YJLV22 YJY23 YJLY23 1 25-800 25-800 25-800 35-800 50-630 50-630 50-630 3 25-630 25-630 25-500 35-500 50-400 50-400 50-400 YJV32 YJLV32 YJY33 YJLY33 1 25-800 25-800 25-800 35-800 50-630 50-630 50-630 3 25-630 25-630 25-400 35-400 50-240 50-185 50-150