1,1 Circular or compacted circular stranded conductors (class 2)

121 Shaped stranded conductor (class 2)

131 Cables having conductors of nominal cross-sectional area 50mm2 and above have shaped stranded conductors (class 2)



TABLE 8B

T

Note:

hree core 600/1000 V cables with stranded copper conductors
when insulated with Tl Z (Type 2)

1

2

3

4

5

6

Nominal cross-

Thickness of

Thickness of

Nominal steel

Thickness of

Approximate

sectional area

insulation

extruded

armour wire

oversheath

overall

of conductor111


bedding

diameter


diameter

mm2

mm

mm

mm

mm

mm

2.5

0.9

1.4

0.9

1.8

17.2

4

1.0

1.4

0.9

1.8

19.0

6

1.0

1.4

1.25

1.8

21.0

10

1.2

1.4

1.25

1.8

24.0

16

1.2

1.4

1.25

1.8

26.0

Circular or compacted circular stranded conductors (class 2)



With dual layer sheath on Type 2 cables, the minimum thickness of any layer shall not be less than 0.8mm nominalThree core 600/1000 V cables with solid aluminium conductors
when insulated with XLPE or HEPR (Type 1 and Type 2)

1

2

3

4

5

6

Nominal cross- sectional area of conductor

Thickness of insulation

Thickness of extruded bedding

Nominal aluminium armour wire diameter

Thickness of oversheath

Approximate overall diameter

mm2

mm

mm

mm

mm

mm

16'11

0.7

0.8

1.25

1.6

20.3

25m

0.9

1.0

1.6

1.7

24.9

2512

0.9

1.0

1.6

1.7

22.5

35ni*

0.9

1.0

1.6

1.8

27.3

35’21*

0.9

1.0

1.6

1.8

24.4

50131

1.0

1.0

1.6

1.8

26.8

70 *

1.1

1.0

1.6

1.9

30.2

95

1.1

1.2

2.0

2.1

34.8

120 *

1.2

1.2

2.0

2.2

37.8

150

1.4

1.4

2.5

2.3

42.7

185 *

1.6

1.4

2.5

2.4

46.7

240

1.7

1.4

2.5

2.6

51.5

300 *

1.8

1.6

2.5

2.7

56.2



<n Solid circular conductor (class 1)

121 Solid sector shaped conductor (class 1)

131 Cables having conductors of nominal cross-sectional area 50mm2 and above have shaped solid conductors (class 1)

* Type 2 cable sizes

Note: With dual layer sheaths on Type 2 cables, the minimum thickness of any layer shall not be less than

0.8mm nominal.


TABLE 10A

Four core 600/1000 V cables with stranded copper conductors
when insulated with XLPE or HEPR (Type 1 and Type 21

1

2

3

4

5

6

Nominal cross-

Thickness of

Thickness of

Nominal steel

Thickness of

Approximate

sectional area

insulation

extruded

armour wire

oversheath

overall

of conductor


bedding

diameter


diameter

mm’

mm

mm

mm

mm

mm

1.5'”

0.6

0.8

0.9

1.3

13.3

2.5’11*

0.7

0.8

0.9

1.4

15.0

4(11 *

0.7

0.8

0.9

1.4

16.4

6ni *

0.7

0.8

1.25

1.5

18.7

10!11 *

0.7

0.8

1.25

1.5

21.1

16(1' *

0.7

0.8

1.25

1.6

23.4

25’11

0.9

1.0

1.6

1.7

28.9

25IZI

0.9

1.0

1.6

1.7

26.1

35111

0.9

1.0

1.6

1.8

31.9

35‘21

0.9

1.0

1.6

1.8

28.6

50131

1.0

1.0

1.6

1.9

32.0

70

1.1

1.2

2.0

2.1

37.7

95

1.1

1.2

2.0

2.2

41.7

120

1.2

1.4

2.5

2.3

47.1

150

1.4

1.4

2.5

2.4

51.4

185

1.6

1.4

2.5

2.6

56.6

240

1.7

1.6

2.5

2.7

63.0

300

1.8

1.6

2.5

2.9

68.8

400

2.0

1.8

3.15

3.2

78.1



* Circular or compacted circular stranded conductors (class 2)

121 Shaped stranded conductor (class 2)

131 Cables having conductors of nominal cross-sectional area 50mm2 and above have shaped stranded conductors (class 2)TABLE 10B

Four core 600/1000 V cables with stranded copper conductors
when insulated withTI Z (Type 2)

1

2

3

4

5

6

Nominal cross-

Thickness of

Thickness of

Nominal steel

Thickness of

Approximate

sectional area

insulation

extruded

armour wire

oversheath

overall

of conductor’11


bedding

diameter


diameter

mm2

mm

mm

mm

mm

mm

2.5

0.9

1.4

0.9

1.8

18.4

4

1.0

1.4

1.25

1.8

21.0

6

1.0

1.4

1.25

1.8

22.5

10

1.2

1.4

1.25

1.8

26.0

16

1.2

1.6

1.6

1.8

30.0

Circular or compacted circular stranded conductors {class 2)



Note: With dual layer sheath onType 2 cables, the minimum thickness of each layer shall not be less than

0.8mm nominal.Four core 600/1000 V cables with solid aluminium conductors
when insulated with XLPE or HEPR (Type 1 and Type 2)

1

2

3

4

5

6

Nominal cross- sectional area of conductor

Thickness of insulation

Thickness of extruded bedding

Nominal aluminium armour wire diameter

Thickness of oversheath

Approximate overall diameter

mm2

mm

mm

mm

mm

mm

16'”

0.7

0.8

1.25

1.6

21.8

25'11

0.9

1.0

1.6

1.7

26.9

25'21

0.9

1.0

1.6

1.7

24.6

35(1124

0.9

1.0

1.6

1.8

29.5

35(21

0.9

1.0

1.6

1.8

27.0

50,3)

1.0

1.0

1.6

1.9

30.0

70 *

1.1

1.2

2.0

2.1

35.3

95

1.1

1.2

2.0

2.2

39.0

120 *

1.2

1.4

2.5

2.3

44.0

150

1.4

1.4

2.5

2.4

47.9

185 *

1.6

1.4

2.5

2.6

52.7

240

1.7

1.6

2.5

2.7

58.5

300 *

1.8

1.6

2.5

2.9

63.8



111 Solid circular conductor (class 1)

(2' Solid sector shaped conductor (class 1}

,3) Cables having conductors of nominal cross-sectional area 50mm2 and above have shaped solid conductors (class 1)Four core 600/1000 V cables with reduced neutral conductor and with stranded copper conductors
(Type 1 only!