標(biāo)準(zhǔn)截面mm²

實(shí)心導(dǎo)體或絞合
導(dǎo)體中單線最少根數(shù)

絕緣厚度規(guī)定值mm

護(hù)套厚度規(guī)定值mm

20℃時(shí)導(dǎo)體最大電阻Ω/km

銅芯

鍍錫銅芯

鋁芯

2×0.75

1

0.6

0.9

24.5

24.8

-

2×1.0

1

0.6

0.9

18.1

18.2

-

2×1.5

1

0.7

0.9

12.1

12.2

-

2×2.5

1

0.8

1.0

7.41

7.56

12.1

2×4

1

0.8

1.0

4.61

4.70

7.41

2×4

7

0.8

1.0

4.61

4.70

-

2×6

1

0.8

1.1

3.08

3.11

4.61

2×6

7

0.8

1.1

3.08

3.11

-

2×10

7

1.0

1.2

1.84

1.84

3.08

3×0.75

1

0.6

0.9

24.5

24.8

-

3×1.0

1

0.6

0.9

18.1

18.2

-

3×1.5

1

0.7

0.9

12.1

12.2

-

3×2.5

1

0.8

1.0

7.41

7.56

12.1

3×4

1

0.8

1.1

4.61

4.70

7.41

3×4

7

0.8

1.1

4.61

4.70

-

3×6

1

0.8

1.1

3.08

3.11

4.61

3×6

7

0.8

1.1

3.08

3.11

-

3×10

7

1.0

1.2

1.83

1.84

3.08