电缆型号 Type and Description
型号 Type |
名称 Description
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适用范围 Application
|
|
VV VLV
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铜芯（铝芯）聚氯乙烯绝缘聚氯乙烯护套电力电缆 Copper(aluminum)conductor,PVC insulated and PVC sheathed cable
|
室内隧道及管道中，不能承受机械外力
For laying indoors,in tunnel or pipe,unable to bear external mechanical force
|
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VY VLY
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铜芯（铝芯）聚氯乙烯绝缘聚乙烯护套电力电缆
Copper (aluminum)conductor,PVC insulated and PE sheathed cable
|
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VV22 VLV22
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铜芯（铝芯）聚氯乙烯绝缘钢带铠装聚氯乙烯护套电力电缆
Copper (aluminum)conductor,PVC insulated,steel tape armored and PVC sheathed cable
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室内，隧道，电缆沟内，或埋地敷设等，能承受一定的机械外力，但不能承受大的拉力 For laying indoors,in tunnel,cable trench,or direct in ground,can bear external mechanical force ,while unable to bear large tension
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VV23 VLV23
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铜芯（铝芯）聚氯乙烯绝缘钢带铠装聚乙烯护套电力电缆
Copper (aluminum)conductor,PVC insulated,steel tape armored and PE sheathed cable
|
|
VV32 VV42 VLV32 VLV42
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铜芯（铝芯）聚氯乙烯绝缘细(粗)钢丝铠装聚氯乙烯护套电力电缆
Copper (aluminum)conductor,PVC insulated,thin(thick) steel wire armored and PVC sheathed cable
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敷设在高落差地区，电缆能承受机械外力作用和一定的拉力 For laying in high drop area ,can bear external mechanical force and certain tension
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VV33 VV43 VLV33 VLV43
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铜芯（铝芯）聚氯乙烯绝缘细（粗）钢丝铠装聚乙烯护套电力电缆
Copper (aluminum)conductor,PVC insulated,thin (thick)steel wire armored and PE sheathed cable
|
产品标准 Standard of Product
本产品按GB/T 12706-2008《额定电压1KV（Um=1.2KV） 到35Kv(Um=40.6KV)挤包绝缘电力电缆及附件》标准生产，同时还可根据用户需要按国际电工委员会推荐IEC标准、英国标准、德国标准及美国标准生产。
The product is manufactured according to the standard of GB/T 12706-2002.At the same time ,it can also be manufactured according to IEC, BS, DIN and AEIC upon request.
适用范围 Application
本产品适用于工频额定电压0.6/1kV及以下配电网或工业装置中固定敷设之用。
The product is suitable for power distribution lines or fixed installation with rated power-frequency voltage up to and including 0.6/1kV.
使用特性 Operating Characteristics
工频额定电压Uo/U为0.6/1kV
Rated power-frequency voltage Uo/U: 0.6/1kV
电缆导体的长期允许工作最高温度为70℃
Max. permissible continuous operating temperature of conductor: 70℃.
短路时（最长持续时间不超过5s）电缆导体的允许最高温度：
导体截面 ≤300mm2 – 160℃；
导体截面 >300 mm2 – 140℃。
Max. temperature of conductor during short-circuit(5s maximum duration) shall not exceed:
Cross-section of conductor ≤300mm2 :160℃;
Cross-section of conductor ＞300mm2 :140℃.
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：单芯电缆不小于电缆外径20倍；多芯电缆不小于电缆外径15倍。
The bending radius of a single-core cable: not less than 20 times of cable’s OD
The bending radius of a multi-core cable: not less than 15 times of cable’s.OD
电缆敷设运行条件 Installation operating condition of cable
* 在空气中的敷设 In Air
单芯电缆平行敷设时中心距离：185 mm2及以下为电缆直径的2倍；240 mm2及以上为90mm。
The single-core cables are paralleled laid , the distance between the cable center is 2 times diameter of the cable for cross-section of conductor≤185 mm2 and 90mm for cross-section of conductor ≥240 mm2
周围环境空气温度：40℃
Ambient air temperature: 40℃
导体允许的长期最高工作温度：70℃
Max. permissible continuous operating temperature of conductor: 70℃
不同环境温度下的载流量修正系数：
Correction factor of current rating under different ambient temperature:
Ambient air temperature |
20℃
|
25℃
|
30℃
|
35℃
|
40℃
|
45℃
|
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Correction factor
|
1.29
|
1.22
|
1.15
|
1.08
|
1.0
|
0.91
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* 直埋敷设 Direct in the ground
单芯电缆不接触敷设时电缆中心距离为电缆直径的两倍
When the single-core cables are layed separately, the
distance between the cable’s center is 2 times diameter
of the cable.
土壤温度：25℃
Soil temperature: 25℃
导体允许的长期最高工作温度： 70℃
Max. continuous operating temperature of conductor: 70℃.
土壤热阻系数：1.0k.m/w
Soil thermal resistivity: 1.0k.m/w
直埋深度：0.7m
Depth of laying: 0.7m
不同土壤温度下的载流量修正系数：
Correction factor of current rating under different soil temperature:
Soil temperature |
20℃
|
25℃
|
30℃
|
35℃
|
40℃
|
|
Correction factor
|
1.05
|
1.0
|
0.94
|
0.88
|
-
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电缆结构图Structure Diagram of Cable
