规定尺寸及技术参数:（YZ、YZW）300/500V

芯数×标称截面
（n×mm2）

导电线芯
（mm）

近似外径
（mm）

20℃导体电阻
≤（Ω·Km）

近似重量
（Kg/Km）

根数/线芯

上限

下限

铜 芯

镀锡铜芯

YZ

YZW

2×0.75
2×1

24/0.20
32/0.20

6.0
6.4

8.2
8.8

26.0
19.5

26.7
20.0

81.7

89.6

2×1.5
2×2.5

30/0.25
49/0.25

8.0
9.4

10.5
12.5

13.3
7.98

13.7
8.21

227.1

242.6

2×4
2×6

56/0.30
84/0.30

11.0
12.5

14.0
17.0

4.95
3.30

5.09
3.39

366.0

394.5

3×0.75
3×1

24/0.20
32/0.20

6.6
6.8

8.8
9.2

26.0
19.5

26.7
20.0

97.4

105.0

3×1.5
3×2.5

30/0.25
49/0.25

8.4
10.0

11.0
13.0

13.3
7.98

13.7
8.21

205.1

219.2

3×4
3×6

56/0.30
84/0.30

11.5
13.0

14.5
18.0

4.95
3.30

5.09
3.39

452.5

497.7

4×0.75
4×1

24/0.20
32/0.20

7.2
7.6

9.6
10.0

26.0
19.5

26.7
20.0

117.1

125.2

4×1.5
4×2.5

30/0.25
79/0.25

9.4
11.0

12.5
14.0

13.3
7.98

13.7
8.21

255.2

270.9

4×4
4×6

56/0.30
84/0.30

13.0
14.5

16.5
20.0

4.95
3.30

5.09
3.39

564.0

594.0

3×1.5+1×1.0
3×2.5+1×1.5

30/0.25+32/0.20
49/0.25+30/0.25

9.4
11.0

12.0
14.0

13.3
7.98

13.7
8.21

170.1
246.8

181.9
262.9

3×4+1×2.5
3×6+1×4

56/0.30+49/0.25
84/0.30+56/0.30

13.0
14.5

16.0
19.5

4.95
3.30

5.09
3.39

359.1
542.1

380.2
572.5

5×0.75
5×1

24/0.20
32/0.20

8.0
8.4

11.0
11.5

26.0
19.5

26.7
20.0

127.1
144.3

136.8
154.5

5×1.5
5×2.5

30/0.25
49/0.25

10.0
12.5

13.5
15.5

13.3
7.98

13.7
8.21

210.5
304.3

223.6
322.4

5×4
5×6

56/0.30
84/0.30

14.5
16.5

18.0
22.5

4.95
3.30

5.09
3.39

441.8
687.5

464.5
724.0

2×2.5

1×4

1×6

1×10

1×16

1×25

1×35

1×50

1×70

1×95

2.10

2.61

3.66

4.88

5.90

7.26

8.54

9.85

12.29

15.38

0.9

1.0

1.0

1.2

1.2

1.4

1.4

1.6

1.6

1.8

1.4

1.5

1.6

1.8

1.9

2.0

2.2

2.4

2.6

2.8

7.2

8.0

9.4

11.8

13.0

15.0

16.8

19.3

22.2

25.2

84

108

147

238

312

450

579

807

1077

1405

2×2.5

2×4

2×6

2×10

2×16

2×25

2×35

2×50

2×70

2×95

2.10

2.61

3.66

4.88

5.90

7.26

8.54

9.85

12.29

15.38

0.9

1.0

1.0

1.2

1.2

1.4

1.4

1.6

1.6

1.8

1.7

1.8

2.0

3.1

3.3

3.6

3.9

4.3

4.6

5.0

12.2

13.8

16.3

21.6

24.0

28.7

31.7

36.0

41.5

49.5

212

282

420

704

915

1315

1660

2219

3035

4068

3×2.5

3×4

3×6

3×10

3×16

3×25

3×35

3×50

3×70

3×95

2.10

2.61

3.66

4.88

5.90

7.26

8.54

9.85

12.29

15.38

0.9

1.0

1.0

1.2

1.2

1.4

1.4

1.6

1.6

1.8

1.8

1.9

2.1

3.3

3.5

3.8

4.1

4.5

4.8

5.3

13.0

14.8

17.4

23.3

26.0

31.1

34.1

39.3

44.5

53.1

255

344

498

859

1124

1598

2044

2801

3751

5042

4×2.5

4×4

4×6

4×10

4×16

4×25

4×35

4×50

4×70

4×95

2.10

2.61

3.66

4.88

5.90

7.26

8.54

9.85

12.29

15.38

0.9

1.0

1.0

1.2

1.2

1.4

1.4

1.6

1.6

1.8

1.9

2.0

2.3

3.4

3.6

4.1

4.4

4.8

5.2

5.9

14.2

16.3

19.2

25.5

28.5

34.0

37.4

42.7

49.0

59.2

305

396

586

994

1276

2233

2547

3344

4538

6350

3×2.5+1×1.5

3×4+1×2.5

3×6+1×4

3×10+1×6

3×16+1×6

3×25+1×10

3×35+1×10

3×50+1×16

2.10

2.61

3.66

4.88

5.90

7.26

8.54

9.85

0.9

1.0

1.0

1.2

1.2

1.4

1.4

1.6

2.0

2.0

2.2

3.0

3.5

4.0

4.0

5.0

14.3

16.2

19.0

23.7

27.0

32.5

35.5

41.7

306

404

576

926

1225

1814

2232

3150

3×70+1×25

3×95+1×35

3×120+1×35

-

-

-

-

-

12.29

15.38

17.10

-

-

-

-

-

1.6

1.8

1.8

-

-

-

-

-

5.0

5.0

5.0

-

-

-

-

-

47.0

54.2

57.8

-

-

-

-

-

4201

5518

6309

-

-

-

-

3×2.5+2×1.5

3×4+2×2.5

3×6+2×4

3×10+2×6

3×16+2×6

3×25+2×10

3×35+2×10

3×50+2×16

2.10

2.61

3.66

4.88

5.90

7.26

8.54

9.85

0.9

1.0

1.0

1.2

1.2

1.4

1.4

1.6

2.0

2.0

2.2

3.0

3.5

4.0

4.0

5.0

14.3

16.2

19.0

23.7

27.0

32.5

35.5

41.7

351.90

464.60

662.40

1064.90

1408.75

2086.10

2566.80

3622.50

3×70+2×25

3×95+2×35

3×120+2×35

-

-

-

-

-

12.29

15.38

17.10

-

-

-

-

-

1.6

1.8

1.8

-

-

-

-

-

5.0

5.0

5.0

-

-

-

-

-

47.0

54.2

57.8

-

-

-

-

-

4831.15

6345.70

7255.35

-

-

-

-

规定尺寸及技术参数:（YZ、YZW）300/500V

芯数×标称截面
（n×mm2）

导电线芯
（mm）

近似外径
（mm）

20℃导体电阻
≤（Ω·Km）

近似重量
（Kg/Km）

根数/线芯

上限

下限

铜 芯

镀锡铜芯

YZ

YZW

2×0.75
2×1

24/0.20
32/0.20

6.0
6.4

8.2
8.8

26.0
19.5

26.7
20.0

81.7

89.6

2×1.5
2×2.5

30/0.25
49/0.25

8.0
9.4

10.5
12.5

13.3
7.98

13.7
8.21

227.1

242.6

2×4
2×6

56/0.30
84/0.30

11.0
12.5

14.0
17.0

4.95
3.30

5.09
3.39

366.0

394.5

3×0.75
3×1

24/0.20
32/0.20

6.6
6.8

8.8
9.2

26.0
19.5

26.7
20.0

97.4

105.0

3×1.5
3×2.5

30/0.25
49/0.25

8.4
10.0

11.0
13.0

13.3
7.98

13.7
8.21

205.1

219.2

3×4
3×6

56/0.30
84/0.30

11.5
13.0

14.5
18.0

4.95
3.30

5.09
3.39

452.5

497.7

4×0.75
4×1

24/0.20
32/0.20

7.2
7.6

9.6
10.0

26.0
19.5

26.7
20.0

117.1

125.2

4×1.5
4×2.5

30/0.25
79/0.25

9.4
11.0

12.5
14.0

13.3
7.98

13.7
8.21

255.2

270.9

4×4
4×6

56/0.30
84/0.30

13.0
14.5

16.5
20.0

4.95
3.30

5.09
3.39

564.0

594.0

3×1.5+1×1.0
3×2.5+1×1.5

30/0.25+32/0.20
49/0.25+30/0.25

9.4
11.0

12.0
14.0

13.3
7.98

13.7
8.21

170.1
246.8

181.9
262.9

3×4+1×2.5
3×6+1×4

56/0.30+49/0.25
84/0.30+56/0.30

13.0
14.5

16.0
19.5

4.95
3.30

5.09
3.39

359.1
542.1

380.2
572.5

5×0.75
5×1

24/0.20
32/0.20

8.0
8.4

11.0
11.5

26.0
19.5

26.7
20.0

127.1
144.3

136.8
154.5

5×1.5
5×2.5

30/0.25
49/0.25

10.0
12.5

13.5
15.5

13.3
7.98

13.7
8.21

210.5
304.3

223.6
322.4

5×4
5×6

56/0.30
84/0.30

14.5
16.5

18.0
22.5

4.95
3.30

5.09
3.39

441.8
687.5

464.5
724.0