产品标准Standard

    本产品按GB/T12706-2008《额定电压1kV到35kV挤包绝缘电力电缆及附件 第2部分 额定电压6kV和30kV电缆  第3部分 额定电压35kV电缆》标准生产，同时还可根据用户需要按国际电工委员会推荐标准IEC、英国标准、德国标准及美国标准生产。
    The product is manufactured according to the standard of GB12706 or IEC、BS、DIN and ICEA upon request.

适用范围Applications

    本产品适用于工频额定电压3.6/6kV～26/35kV输配电线路作配送电能子用。
    The product is suitable for use in power transmission and distribution lines with rated power frequency voltage 3.6/6kV～26/35kV.

使用特性Operating characteristics

· 工频额定电压U0/U为3.6/6kV～26/35kV。
   Rated power-frepuency voltage U0/U: 3.6/6kV～26/35kV.
· 电缆导体的最高允许工作温度：90℃。
   Max.admissible operating temperature of the conductor:90℃.
· 短路时（最长时间不超过5s）电缆导体的最高温度不超过2500C。
   Max. short-circurt temperature of conductor shall not exceed 2500C.
(5s maximum duration)
· 电缆敷设时环境温度应不低于0℃。

   The ambient temperature under installation should not below 0℃.
· 电缆弯曲半径：三芯电缆不小于电缆外径15倍；单芯电缆不小于电缆外径20倍。
   The bending radius of a single-core cable should not less than 20 times of the cable diameter.
   The bending radius of a single-core cable should not less than 15 times of the cable diameter.

电缆额定电压的选择 Voltage designation

· 电缆的额定电压应适合于电缆系统的运行状况，用U0/U（Um）kV表示。
 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****值。
   The rated voltage of the cable for a given applixation shall be suitable for the operating conditions
   in the system in which the cable is used,and is expressed in the form of U0/U（Um）kv  Where:
  U0－The rated power-frequency voltage between conductors and earth metallic screen ,for which the cable designed;
  U － The rated power-frequency voltage between conductos, for which the cable designed;
  Um－ The maximum value of the“highest system voltage”for which the equipment may beused.
· 三相系统用电缆的U0值推荐如下表：
  he values of U0 recommened for cable to be used in three-phase systems are listed below:

U kV	U m kV	U 0 * kV
		A 和 B 类系统 System categories A and B	C 类系统 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类系统──该类系统任何一相导体与地和接地导体接触时，能在1min内与系统分离

B类系统──该类系统仅包括单相接地故障短时运行的条件，接地故障时间应不超过1h, 但在任何情况下，最长不超过8h每年接地故障总持续时间不超过125h；

C类系统──不属于A类、B类的系统。

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

 

 电缆的型号Type of cable

型 号 Type	名          称 Description	适  用  范  围 Application
YJV   YJLV   YJY   YJLY	铜芯交联聚乙烯绝缘聚氯乙烯护套电力电缆 Copper core XLPE insulated PVC sheathed power cable. 铝芯交联聚乙烯绝缘聚氯乙烯护套电力电缆 Aluminium core XLPE insulated PVC sheathed power cable. 铜芯交联聚乙烯绝缘聚乙烯护套电力电缆 Copper core XLPE insulated PE sheathed power cable. 铝芯交联聚乙烯绝缘聚乙烯护套电力电缆 Aluminium core XLPE insulated PE sheathed power cable.	室内、隧道及电缆沟等不能承受机械外力的场所。单芯电缆不允许敷设在磁性管道中。         For laying in doors、in tunnels and direct in ground, unable to bear external mechanical forces. Single core cable in magnetic duct is not permissible.
YJV22     YJLV22     YJV23     YJLV23	铜芯交联聚乙烯绝缘钢带铠装聚氯乙烯护套电力电缆 Copper core XLPE insulated steel tape armoured PVC sheathed power cable. 铝芯交联聚乙烯绝缘钢带铠装聚氯乙烯护套电力电缆 Aluminium core XLPE insulated steel tape armoured PVC sheathed power cable. 铜芯交联聚乙烯绝缘钢带铠装聚乙烯护套电力电缆 Copper core XLPE insulated steel tape armoured PE sheathed power cable. 铝芯交联聚乙烯绝缘钢带铠装聚乙烯护套电力电缆 Aluminium core XLPE insulated steel tape armoured PE sheathed power cable.	室内、隧道、电缆沟等能承受机械外力的场所，但不能承受大的拉力。       For laying in doors、in tunnels and direct in ground, able to bear external mechanical forces，but unable to bear large pulling force.
YJV32     YJLV32     YJV33     YJLV33	铜芯交联聚乙烯绝缘细钢丝铠装聚氯乙烯护套电力电缆 Copper core XLPE insulated steel wire armoured PVC sheathed power cable. 铝芯交联聚乙烯绝缘细钢丝铠装聚乙烯护套电力电缆 Aluminium core XLPE insulated steel wire armoured PVC sheathed power cable 铜芯交联聚乙烯绝缘细钢丝铠装聚乙烯护套电力电缆 Copper core XLPE insulated steel wire armoured PE sheathed power cable. 铝芯交联聚乙烯绝缘细钢丝铠装聚乙烯护套电力电缆 Aluminium core XLPE insulated steel wire armoured PE sheathed power cable.	室内、隧道、电缆沟、竖井等能承受机械外力和一定拉力的场所。       For laying in doors, in tunnels and direct in ground and wells, able to bear external mechanical forces and certain pulling force.

 

 生产范围Production range of cable

型号   Type	芯数   Cores	额 定电 压  Rated Voltage  kV
		3.6/6	6/6 6/10	8.7/10 8.7/15	12/15 12/20	18/20 18/30	21/35	26/35
		标  称  截  面   Nominal cross sectional of areas  mm2
YJV YJLV YJY YJLY	1	25-630	25-630	25-630	35-630	50-630	50-630	50-630
	3	25-630	25-630	25-630	25-630	25-400	25-400	25-400
YJV22 YJLV22 YJV23 YJLV23	1	25-630	25-630	25-630	35-630	50-630	50-630	50-630
	3	25-630	25-630	25-630	35-600	50-400	50-400	50-400
YJV32 YJLV32 YJV33 YJLV33	1	25-630	25-630	25-630	35-630	50-400	50-400	50-240
	3	25-630	25-630	25-400	35-400	50-240	50-240	50-185

注：单芯铠装电缆仅用于直流系统，若用于交流系统，应采用非磁性材料的铠装层或采用隔磁措施。

     Note: The single core armoured cables are used for D. C. system only. As for A. C. system, the magnetic isolation should be applied in the steel armoure wires or non-magnetical materials should be used.

 

电缆性能

20℃时导体****直流电阻     Max. D.C. resistance of conductor at 20℃.

导体标称截面 Nominal cross sectional areas of conductor mm2	铜  导  体 Copper conductor	铝  导  体 Aluminum conductor
2.5	7.41	12.1
4	4.61	7.41
6	3.08	4.61
10	1.83	3.08
16	1.15	1.91
25	0.727	1.200
35	0.524	0.868
50	0.387	0.641
70	0.268	0.443
95	0.193	0.320
120	0.153	0.253
150	0.124	0.206
185	0.0991	0.164
240	0.0754	0.125
300	0.0601	0.100
400	0.0470	0.078
500	0.0366	0.0605
630	0.0283	0.0469

 

电压试验、局部放电试验    Voltage test and partial discharge

序号 NO.	试  验  项  目   Test items	额 定 电 压    Rated voltage  kV
		3.6/6	6/6 6/10	8.7/10 8.7/15	12/20	18/30	21/35	26/35
1	工频交流电压试验 Power frequency A.C. voltage test                kV/5min	11	15	22	31	45	53	65
2	四小时工频交流电压试验kV High-voltage test for 4 hours.  kV	14.4	24	34.8	48	72	84	104
3	冲击电压试验            kV Impulse voltage test        kV	60	75	95	125	170	200	250
4	局部放电试验   1.73U0下****局部放电量 Partial discharge test  Maximum discharge at 1.73 U0               pC	5	5	5	5	5	5	5

 

导体短路电流    Short-circuit current.

 

电缆载流量  The Current carrying capacity

 

◇ 3.6/6kV 

                        (A)

 

◇ 6/6、6/10kV

                                                     (A)

 

  

◇ 8.7/10kV.  8.7/15kV

                                                                          (A)

 

 

◇ 12/20kV       

                                                  (A)

 

  

◇ 18/30kV 

                                                          (A)

 

  ◇ 21/35kV                                                    

                                                        (A)

     

 ◇ 26/35kV  

                                                        (A)

 

金属屏蔽层的短路电流  Short circuit current of screen

 

◇单芯电缆    single core

导体标称截面 Nominal cross section areas of   conductor mm2	额定电压(kV)    Rated voltages
	3.6/6	6/6 6/10	8.7/10 8.7/15	12/20	18/20 18/30	21/35	26/35
	短路电流（A）  Short circuit current.
25	1075	1083	1094	---	---	---	---
35	1074	1082	1092	1096	---	---	---
50	1072	1080	1091	1095	1284	1286	1288
70	1070	1079	1090	1091	1281	1285	1286
95	1069	1077	1086	1272	1280	1284	1283
120	1068	1077	1266	1271	1279	1280	1282
150	1067	1076	1265	1270	1278	1279	1282
185	1064	1251	1264	1267	1275	1279	1279
240	1241	1250	1262	1266	1274	1276	1278
300	1239	1246	1261	1265	1271	1275	1277
400	1240	1245	1256	1260	1270	1272	1274
500	1243	1244	1253	1257	1266	1272	1273
630	1236	1238	1252	1253	1265	1270	1270

 

◇三芯电缆    three-cores

导体标称截面 Nominal cross section areas of   conductor mm2	额定电压（kV）    Rated voltages
	3.6/6	6/6 6/10	8.7/10 8.7/15	12/20	18/20 18/30	21/35	26/35
	短路电流（A）  Short circuit current.
25	2958	2958	2958	---	---	---	---
35	2958	2958	2958	2958	---	---	---
50	2958	2958	2958	2958	3031	3031	3031
70	2958	2958	2958	2958	3031	3031	3031
95	2958	2958	2958	3031	3031	3031	3031
120	2958	2958	2958	3031	3031	3031	3031
150	2958	2958	3031	3031	3031	3031	3031
185	2958	2958	3031	3031	3031	3031	3031
240	3031	3031	3031	3031	3031	3031	3031
300	3031	3031	3031	3031	3031	3031	3031
400	3031	3031	3031	3031	3031	3031	3031
500	3031	3031	3031	3031	3031	3031	3031
630	3031	3031	3031	3031	3031	3031	3031

 

●载流量计算条件:

    Current ratings are calculated for the following installation conditions:

 

◇导体最高工作温度   Max. Rated temperature of the cable conductor   90℃

◇环境空气温度       Ambient temperature in air                      40℃

◇土壤温度           Ground temperature                              25℃

◇土壤热阻系数       Rating factors for ground thermal resistive     1.0 ℃.m/W

◇埋设深度           Depth                                           0.8m

◇仅考虑一个回路     Single circuit parallel laid

◇单芯电缆为水平敷设,间距为一个电缆外径

   Single core is paralleled installation. Adjacent space is equivalent to the diameter of cable.

 

●环境条件对电缆载流量的修正系数

  Rating factors of current rating for ambient condition

 

  ◇ 土壤敷设      Direct in ground

  ◇ 不同土壤温度下载流量修正系数

    Rating factors of current rating for ambient temperature 

 

 ◇不同土壤热阻载流量的修正系数

 Rating factors of current rating for ground thermal resistive

土壤热阻 Rating factors for ground thermal resistive  ℃.m/w	1.0	1.2	1.5	2.0	2.5	3.0	3.5
三芯电缆  Single core	1.0	0.943	0.877	0.792	0.736	0.675	0.641
单芯电缆  Three core	1.0	0.934	0.850	0.748	0.692	0.635	0.598

 

 

  ◇  空气敷设    Direct in air

  ◇ 不同环境温度下载流量的校正系数

     Rating factors of current rating for air thermal resistive.