常用銅導(dǎo)線(BVR)載流量對照表

常用銅導(dǎo)線（BVR）載流量對照表,,,,,,,,,,,,,,,,

序號,銅電線型號,單心載流量,,電壓降mv/M,品字型電壓降mv/M,緊挨一字型電壓降mv/M,間距一字型電壓降mv/M,兩心載流量(25。C)(A),,電壓降mv/M,三心載流量(25。C)(A),,電壓降mv/M,四心載流量(25。C(A),,電壓降mv/M

,,(25。C)(A),,,,,,,,,,,,,,

,,,,,0.95,0.85,0.7,,,,,,,,,

,,VV,YJV,,,,,VV,YJV,,VV,YJV,,VV,YJV,

1,1.5mm2/c,20,25,30.86,26.73,26.73,26.73,16,16,,13,18,30.86,13,13,30.86

2,2.5mm2/c,28,35,18.9,18.9,18.9,18.9,23,35,18.9,18,22,18.9,18,30,18.9

3,4mm2/c,38,50,11.76,11.76,11.76,11.76,34,38,11.76,23,34,11.76,28,40,11.76

4,6mm2/c,48,60,7.86,7.86,7.86,7.86,40,55,7.86,32,40,7.86,35,55,7.86

5,10mm2/c,65,85,4.67,4.04,4.04,4.05,55,75,4.67,45,55,4.67,48,80,4.67

6,16mm2/c,90,110,2.95,2.55,2.56,2.55,70,108,2.9,60,75,2.6,65,65,2.6

7,25mm2/c,115,150,1.87,1.62,1.62,1.63,100,140,1.9,80,100,1.6,86,105,1.6

8,35mm2/c,145,180,1.35,1.17,1.17,1.19,125,175,1.3,105,130,1.2,108,130,1.2

9,50mm2/c,170,230,1.01,0.87,0.88,0.9,145,210,1,130,160,0.87,138,165,0.87

10,70mm2/c,220,285,0.71,0.61,0.62,0.65,190,265,0.7,165,210,0.61,175,210,0.61

11,95mm2/c,260,350,0.52,0.45,0.45,0.5,230,330,0.52,200,260,0.45,220,260,0.45

12,120mm2/c,300,410,0.43,0.37,0.38,0.42,270,410,0.42,235,300,0.36,255,300,0.36

13,150mm2/c,350,480,0.36,0.32,0.33,0.37,310,470,0.35,275,350,0.3,340,360,0.3

14,185mm2/c,410,540,0.3,0.26,0.28,0.33,360,570,0.29,320,410,0.25,400,415,0.25

15,240mm2/c,480,640,0.25,0.22,0.24,0.29,430,650,0.24,390,485,0.21,470,495,0.21

16,300mm2/c,560,740,0.22,0.2,0.21,0.28,500,700,0.21,450,560,0.19,500,580,0.19

17,400mm2/c,650,880,0.2,0.17,0.2,0.26,600,820,0.19,,,,,,

18,500mm2/c,750,1000,0.19,0.16,0.18,0.25,,,,,,,,,

19,630mm2/c,880,1100,0.18,0.15,0.17,0.25,,,,,,,,,

20,800mm2/c,1100,1300,0.17,0.15,0.17,0.24,,,,,,,,,

21,1000mm2/c,1300,1400,0.16,0.14,0.16,0.24,,,,,,,,,

,,,,,,,,,,,,,,,,,

,,,,,,,,,,,,,,,,,

YJV絕緣用的是交聯(lián)聚乙烯.,,,,,,,,,,,,,,,,

VV絕緣用的是聚氯乙烯.

,,,,,,,,,,,,,,,,

YJV電纜工作溫度達90度，而VV只有70度，同截面積YJV電纜載流量大。,,,,,,,,,,,,,,,,

VV類電纜導(dǎo)體運行最高額定溫度為攝氏70度，短路時（持續(xù)時間小于5秒）最高溫度不超過攝氏160度。,,,,,,,,,,,,,,,,

YJV類電纜導(dǎo)體運行最高額定溫度為攝氏90度，短路時（持續(xù)時間小于5秒）最高溫度不超過攝氏250度。,,,,,,,,,,,,,,,,

YJV從長遠看比VV好（使用壽命長等），但比VV貴。,,,,,,,,,,,,,,,,

從技術(shù)經(jīng)濟指標看，三芯的