芯数×
标称截面mm2

导体种类

绝缘
标称厚度mm

屏蔽单线标称直径mm

护套
标称厚度mm

平均外径

70℃时绝缘电阻最小值MΩ/km

下限

上限

4×0.5

3

0.6

0.15

1.2

8.6

10.5

0.013

4×0.75

3

0.6

0.15

1.2

9.0

11.0

0.011

4×1.0

3

0.6

0.15

1.2

9.4

11.5

0.010

4×1.5

3

0.7

0.15

1.2

10.0

12.5

0.010

4×2.5

3

0.8

0.20

1.5

12.5

15.0

0.009

5×0.5

3

0.6

0.15

1.2

9.0

11.0

0.013

5×0.75

3

0.6

0.15

1.2

9.6

11.5

0.011

5×1.0

3

0.6

0.15

1.2

10.0

12.0

0.010

5×1.5

3

0.7

0.15

1.2

11.0

13.5

0.010

5×2.5

3

0.8

0.20

1.5

13.5

16.0

0.009

7×0.5

3

0.6

0.15

1.2

9.8

11.5

0.013

7×0.75

3

0.6

0.15

1.2

10.0

12.5

0.011

7×1.0

3

0.6

0.15

1.2

10.5

13.0

0.010

7×1.5

3

0.7