一、产品简介

      预制分支电缆是一种新型的预制型建筑配电电缆，它广泛应用于住宅楼、办公室、宾馆、医院、桥梁、工厂、矿井、地铁、隧道等供电系统。该产品根据具体建筑的结构特点和配电要求，将主干电缆、分支电缆、分支联接体等三部分进行一体化设计，采取工厂预制的方式，是普通电缆的和母线槽理想的更新换代产品，在工程的经济性、技术先进性和安装简便性有突出的优点。
      Prefab branch cable,which is one kind of new prefab structural distribution cables,is widely used in the distridution of residential building,office building,hotel,hospital,bridge,factory,mining,subway,tunnel,and so on.The cable combined the trunk cable,branch cable,and branch joint into one according to the framewcrk characteristic and distribution demand of the idiographic structure.Adopted factory prefab way,it is the ideal substitute for gener al cable and generatrix trough.It has outstanding advantages in economical engineering,advanced technique and convenient & simple installation.

二、FDZ系列预制分支电缆的品种、型号 Breed,Type of FDZ Series Prefabricated branch Cable

可选用电缆（均为铜导体）的型号有：
YJV-交联聚乙烯绝缘聚氯乙烯护套电力电缆。
ZR-YJV-交联聚乙烯绝缘聚乙烯氯护套阻燃电力电缆。
N H-YJV-交联聚乙烯绝缘聚氯乙烯护套耐火电力电缆。
Vv-聚氯乙烯绝缘聚氯乙烯护套电力电缆。
ZR-VV-聚氯乙烯绝缘聚氯乙烯护套阻燃电力电缆。
ZH-VV-聚氯乙烯绝缘聚氯乙烯护套耐火电力电缆。
GWDZ-，WDZA-，WDZAN-WDZAN-新一代聚氯乙
烯护套低烟、低毒、无卤电力电缆。
G-隔氧层系列分支电缆。

Optional variety and specifications of cable:
YJV:XLPE insulated and  PVC sheathed power cable.
ZR-YJV:XLPE insulated and PVC sheathed flame retardant 
cpower cable.
NH-YJV:XLPE insulated and PVC sheathed slow-burning power 
cable.
VV:PVC insulated and sheathed power cable.
ZR-VV:PVC insulated and sheathed flame retardan power cable.
NH-VV:PVC insulated and sheathed slow-burning power cable.
GWDZ-,WDZA-,WDNA-WDZAN-:new generation PVC sheathed 
low-smoke low-poision no-halogen power cable.
G-oxygen series cable.

三、FDZ系列预制分支电缆的主要性能
Main properties of FDZ Series Prera bricated Branch Cable

1、绝缘电阻≥200MΩKm;
2、绝缘耐压3.5kv/5min不击穿；
3、良好气密性与防水性，即将分支接头浸入水中，在水与电缆芯之间测量绝缘电阻和工频耐压均应符合1和2的要求。
4、分支接头的接触电阻的小，接触电阻与等长的分支线的基准电阻之比值≤1.2;
5、接头短路强度大，短路后接触电阻比率的变化率≤0.2
6、ZR-YJV型阻燃预制分支电缆，护套的自熄时间≤12s，符合GB12666.5的要求。
7、NH耐火型电缆除了能在正常的工作条件下供电外，也能在燃烧情况下，保持90min的正常运行，符合GB12666.6的要求。
8、VV型电缆的铜芯的最高工作温度为70℃，YJV型电缆的铜芯的最高工作温度为90℃；
9、具有优良的耐腐蚀性，能抵抗无机盐、油、碱、酸和有机溶剂对它的腐蚀；
10、YJV型预制分支电缆具有优良的热稳定性和抗老化性；
11、GWDZ-，WDZA-，WDNA-，WDZAN-，清洁型预制分支电缆具有低烟、低毒、无卤、耐火等优越性能。
12、GZR-YJV隔氧层系列分支电缆。具有高阻燃、耐火性能，阻燃性能超过阻燃标准A类。

1.lnsulation resistance≥200MΩ
2.Insulation withstand voltage≥3.5kV/5min;
3.Excellent air tightness and water proofing quality.When immerge branch joint water, measured insulation resistance between water and cable core,and power frequency withstand voltge meet the requirement of items 1 and 2;1
4.Little contact resistance of branch joint.The ratio value of contact resistance resist ance of equal length branch line if equal to or less than 1.2;
5.large joint short circuit strength.The variation rate of contact resistance ratio after shart circuit is equal to orless than 0.2;
6.For ZR-YJV type flame-retarded prefabricated branch cables,self extinguishing time of jacket is equal is equal to or less than 12s and meets GB12666.5;
7.Besides power supply in normal working condition NH fire resistance type cable can reamin normal operation for 90 min uder brming condition and meets GB12666.6;
8.Max,working temperature of copper core of VV type cable is 70℃ and that  of YJV type cable 90℃;
9.With excellent corrosive resistance,it can keep from eroding of inorganic salt,oil,base,acid,organic solution and so on;
10.YJV type prefabricated branch cable has excellent themal stability and aging resistance;
11.GWDZ-,WDZA-,WDNA-,WDZAN-clean-type precast branch cable possesses the features such as low smoke,lowtoxic,non-halogen and fireresistance etc;
12.GZR-YJV oxygen barrier branch cable with higt flame retardance and fire resistance which exceeds Antifaming Stamdard A class.