GZR-YJV/GZR-DL(WL)-YJV高阻燃电力电缆

高阻燃电力电缆
产品标准 Standard 
　　本产品按GB12706-91《额定电压35kV及以下铜芯、铝芯塑料绝缘电力电缆》、GB12666.5-90《电线电缆成束燃烧试验》、GB/T17650-1998《取自电缆或光缆的材料燃烧时释出气体的试验方法》和GB/T17651-1998《电缆或光缆在特定条件下燃烧的烟密度测定》标准生产0.6/1kV-26/35kV塑料绝缘电力电缆，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 GB12706-91、GB12666.5-90、GB/T17650-1998 and GB/T17651-1998 or IEC and DIN and ICEA.

适用范围 Applications
　　本产品适用于工频额定电压0.6/1kV-26/35kV 输配电线路作配送电能之用。
The product is suitable for power transmission and distribution lines with rated voltage 0.6/1kV-26/35kV.

使用特性 Operating characteristics .
　　工频额定电压U0/U为0.6/1kV-26/35kV.
Rated power frequency voltage U0/U:0.6/1kV-26/35kV.
　　PVC绝缘电缆导体的长期最高工作温度为70℃。XLPE绝缘电缆导体的长期允许最高工作温度为90℃
PVC insulated power cable Max . permissible continuous operating temperature of the conductor should not exceed 70 ℃,XPLE permissible continuous operating temperature of the conductor should not exceed 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
Max Short –circurrt temperature of conductor shall not exceed 250.(5s maximum duration)
　　电缆敷设时环境温度不低于0℃
The installation temperature should not below 0℃
　　电缆阻燃性能满足GB12666.5-90标准A类相应指标要求。
The flame-ratardant properties of cable comply with the requirements specified in A kind of GB12666.5-90
　　低卤电缆除应满足GB12666.5-90标准中A类相应指标要求外，还应满足GB/T17650.1-1998标准规定的相应指标。
The flame-retardant properties of lower halogen cable comply with requirements specified in A kind of GB12666.5-90 except compluing with requirements specified in GB/T17650.2-1998 .
　　无卤电缆除应满足GB12666.5-90标准中A类相应指标要求外，还应满足GB/T17650.2-1998和GB/T17651-1998标准规定的相应指标。
The flame-retardant properties of no halogen cable comply with requirements specified in A kind of GB12666.5-90 except compluing with requirements specified in GB/T17650.2-1998 .and GB/T17651-1998.
　　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。
Three bending radius of a single core should not less than 20 times of the cable diameter 
Two bending radius of a three-core cable should not less than 15 times of the cable diameter.

电缆额定电压的选择 Voltage designation
　　电缆额定电压应适合于电缆的系统的运行状况，用U0/U（Um）表示，均为有效值，单位为kv
　　U0- 电缆设计用导体与屏蔽或金属套之间的额定工作电压；
　　U—电缆设计用导体之间的额定工频电压；
　　Um –设备可承受的“最高系统”电压的最大值。
The rated voltage of the cable for a given application shall be suitable for the operating condition in the system in which the cable is used , and is expressed in the form of U0/U（Um）are applied to the system voltages and running state , and expressed in the form U0/Ukv.
U0-The rated power-frequency voltage between conductor and earth or metallic screen ,for which the cable designed .
U-The rated power –frequency voltage between conductors for which the cable designed.
Um- –The maximum value of “the highest system voltage ”for which the equipment may be used.

三相系统用电缆的U0值推荐如下表：
The values U0 recommended for cables to be used in three-phase systems are listed below:

  第一类——用于单相接地故障时间每一次一般不大于1min，亦可用于最长不超过8小时，每年累计不超过125小时的系统。
第二类——用于接地故障时间更长的系统及对电缆绝缘性能要求较高的场合。
The first class cable – suitable for one single –phase earthing – block time does not exceed one minute each time. Max. time not exceed 8 hours ,and not exceed 125 hours in all in one year.
The second class cable – suitable for more the earthing – block time and more better insulated performa. 电缆的型号 Type of cable   0.6/1kv高阻燃（隔氧层）电缆的生产范围
Production Range of high performance flame –retardant cable   1.8/3~26/35kv高阻燃（隔氧层）电缆的生产范围
Production Range of high performance flame- retardant cable阻燃电缆型号规格

型号 Type		芯数 cores	电压 Rated voltage kV
铜芯 Copper conductor	铝芯 Aluminum conductor		1.8/3	3.6/6 6/6	6/10 8.7/10	8.7/15 ~12/20	18/30 ~26/35
			标称截面 Nominal Cross-section Mm2
GZR-YJV GZR-DL(WL)-YJV GZR-YJV22 GZR-DL(WL)-YJV22 GZR-YJV32 GZR-DL(WL)-YJV32	GZR-YJLV GZR-DL(WL)-YJLV GZR-YJLV22 GZR-DL(WL)-YJLV22 GZR-YJLV32 GZR-DL(WL)-YJLV32	1	10~630 10~630 10~630	25~630 25~630 25~630	25~630 25~630 25~630	35~630 35~630 35~630	35~630 35~630 35~630
GZR-YJV GZR-DL(WL)-YJV GZR-YJV 22 GZR-DL(WL)-YJV22 GZR-YJV 32 GZR-DL(WL)-YJV32	GZR-YJLV GZR-DL(WL)-YJLV GZR-YJLV 22 GZR-DL(WL)-YJLV22 GZR-YJLV 32 GZR-DL(WL)-YJLV32	3	10~500 10~500 10~500	25~500 25~500 25~500	25~500 25~500 25~500	35~500 35~500 35~500	35~500 35~500 35~500

注：单芯铠装型高阻燃（隔氧层）电缆仅用于直流系统，应采用非磁性材料的铠装层或采用隔磁措施。
Note: The single-core armoured high performance flame-retardant cables are used for d.c system only, as for a . c. system non-magnetic aromour materials should be or magnetic isolation should be applied.   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 
聚氯乙烯绝缘为70℃，交联聚乙烯绝缘为90℃
PVC insulated 70℃ ,XPLE insulated 90℃ 
环境空气温度：
Ambient air temperature 40℃
土壤温度：
soil 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