電纜型號 Type and Description
型號 Type |
名稱 Description
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適用范圍 Application
|
|
VV VLV
|
銅芯（鋁芯）聚氯乙烯絕緣聚氯乙烯護套電力電纜 Copper(aluminum)conductor,PVC insulated and PVC sheathed cable
|
室內隧道及管道中，不能承受機械外力
For laying indoors,in tunnel or pipe,unable to bear external mechanical force
|
|
VY VLY
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銅芯（鋁芯）聚氯乙烯絕緣聚乙烯護套電力電纜
Copper (aluminum)conductor,PVC insulated and PE sheathed cable
|
|
VV22 VLV22
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銅芯（鋁芯）聚氯乙烯絕緣鋼帶鎧裝聚氯乙烯護套電力電纜
Copper (aluminum)conductor,PVC insulated,steel tape armored and PVC sheathed cable
|
室內，隧道，電纜溝內，或埋地敷設等，能承受一定的機械外力，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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銅芯（鋁芯）聚氯乙烯絕緣鋼帶鎧裝聚乙烯護套電力電纜
Copper (aluminum)conductor,PVC insulated,steel tape armored and PE sheathed cable
|
|
VV32 VV42 VLV32 VLV42
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銅芯（鋁芯）聚氯乙烯絕緣細(粗)鋼絲鎧裝聚氯乙烯護套電力電纜
Copper (aluminum)conductor,PVC insulated,thin(thick) steel wire armored and PVC sheathed cable
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敷設在高落差地區，電纜能承受機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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銅芯（鋁芯）聚氯乙烯絕緣細（粗）鋼絲鎧裝聚乙烯護套電力電纜
Copper (aluminum)conductor,PVC insulated,thin (thick)steel wire armored and PE sheathed cable
|
產品標準 Standard of Product
本產品按GB/T 12706-2008《額定電壓1KV（Um=1.2KV） 到35Kv(Um=40.6KV)擠包絕緣電力電纜及附件》標準生產，同時還可根據用戶需要按國際電工委員會推薦IEC標準、英國標準、德國標準及美國標準生產。
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.
適用范圍 Application
本產品適用于工頻額定電壓0.6/1kV及以下配電網或工業裝置中固定敷設之用。
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
工頻額定電壓Uo/U為0.6/1kV
Rated power-frequency voltage Uo/U: 0.6/1kV
電纜導體的長期允許工作最高溫度為70℃
Max. permissible continuous operating temperature of conductor: 70℃.
短路時（最長持續時間不超過5s）電纜導體的允許最高溫度：
導體截面 ≤300mm2 – 160℃；
導體截面 >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℃.
電纜敷設時環境溫度應不低于0℃。
The ambient temperature under installation should not below 0℃.
電纜彎曲半徑：單芯電纜不小于電纜外徑20倍；多芯電纜不小于電纜外徑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
電纜敷設運行條件 Installation operating condition of cable
* 在空氣中的敷設 In Air
單芯電纜平行敷設時中心距離：185 mm2及以下為電纜直徑的2倍；240 mm2及以上為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
周圍環境空氣溫度：40℃
Ambient air temperature: 40℃
導體允許的長期最高工作溫度：70℃
Max. permissible continuous operating temperature of conductor: 70℃
不同環境溫度下的載流量修正系數：
Correction factor of current rating under different ambient temperature:
Ambient air temperature |
20℃
|
25℃
|
30℃
|
35℃
|
40℃
|
45℃
|
|
Correction factor
|
1.29
|
1.22
|
1.15
|
1.08
|
1.0
|
0.91
|
* 直埋敷設 Direct in the ground
單芯電纜不接觸敷設時電纜中心距離為電纜直徑的兩倍
When the single-core cables are layed separately, the
distance between the cable’s center is 2 times diameter
of the cable.
土壤溫度：25℃
Soil temperature: 25℃
導體允許的長期最高工作溫度： 70℃
Max. continuous operating temperature of conductor: 70℃.
土壤熱阻系數：1.0k.m/w
Soil thermal resistivity: 1.0k.m/w
直埋深度：0.7m
Depth of laying: 0.7m
不同土壤溫度下的載流量修正系數：
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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電纜結構圖Structure Diagram of Cable
