POWER CABLES

 

CLICK HERE TO VISIT:

POWER CABLES – AS PER BS:6346:1989

POWER CABLES – IS: 1554

PVC Insulated LT Power Cables to IS: 1554 Part 1

Conductor

Copper conductors are made from high conductivity Copper rods of 8 mm diameter. The rod is drawn to required sizes for the construction of conductors of different areas of cross section conforming to IS:8130-1984. Conductors for Power cables with cross sectional area have following configuration
1. Conductors below 6 sq.mm are either solid circular or stranded circular (non-compact) conforming to Table 1Class 1 or Table 2 Class 2 of IS:8130-1984.
2. Conductors of 10 sq.mm and 16 sq.mm are stranded circular (non-compact)
3. Conductors of 25 sq.mm and above are - stranded compact circular for single core unarmoured and armoured     & shaped conductors for multicore unarmoured and armoured
However, the construction of stranded non-compact conductors can also be made against customer specification.

Insulation

PVC Compound is insulated over conductor by extrusion process with required thickness of insulation and conforms to IS: 1554 (Part-1)-1988 for PVC insulated cables.
PVC insulation, is either of general purpose 'type A' PVC compound, suitable for a maximum continuous conductor operating temperature of 70°C, or of Heat resistant 'type C' PVC Compound, suitable for a maximum continuous conductor operating temperature of 85"C conforming to requirements of IS:5831-1984. Special types of PVC insulation suitable for 105°C and FRLS sheath can also be offered against customer requirement.

Identification of core colours:

No. of cores

  Identification

1

  Red, Black, Yellow, Blue, or Natural (Non-pigmented)

2

  Red and Black

3

  Red, Yellow and Blue  Red, Yellow, Blue and Black

4

  Red, Yellow, Blue and Black




 

 





Laying up

Cores are laid up with right hand lay in the outermost layer in the sequence of above core colours. Interstices, if necessary, are covered with non hygroscopic fillers and covered with a binder tape for compactness and to maintain reasonably round shape.

Inner sheath

All multi-core cables have either extruded PVC inner sheath or thermoplastic wrapped inner sheath, which is compatible to insulation material and removable without any damage to insulation.Single core cable have no inner sheath.

Armouring

Single core cables for use on a.c systems, are armoured with single layer of nonmagnetic (Aluminium) material. Multi-core armoured cables have either single layer of Galvanized Steel wire Armour or Galvanised steel formed wire (earlier steel strip) applied over inner sheath with left hand lay. Galvanised steel wires and / or formed wires (earlier called strip) conform to IS:3975-1998.

Outer sheath

For Cables with general purpose PVC insulation, Sheaths are extruded with Black PVC compound of type ST1 and for cables with heat resistant PVC insulation, sheaths are extruded with Black PVC compound of Type ST2 conforming to the requirements of IS:5831-1984.

PVC outer sheath with improved fire performance as per Category Cl and C2 conforming to the requirements of IS:5831-1984 are available against specific requirement.

Outer sheath is embossed 1 marked with information’s required by the relevant standard 1 customer requirement.

Packing, storage and handling

Cables for power supplies and control panel wirings are always packed in appropriate sizes of strong and seasoned wooden drums designed to withstand long distance transit and preservation in stores.

Power cables of all sizes of single core, Power cables of rnuiti-core upto 120 sq.mm are packed in standard lengths of 500 metre 5% and Power cables of multi-cores of 150 sq.mm and above are packed in standard lengths of 250 metre 5% .

It is advised that drums are always to be stored in concrete floors to avoid sinking in mud and damages or deterioration of drum flanges and shall not be stored on its flanges horizontal to ground. Drums are designed for easy handling when transported by cranes or mounted on cable drum wheels for laying. Cables in drums shall be stored away from boilers and furnaces.

Customer orientation

Against specific requirement and application, Q-Flx Wires & Cables. can offer cables conforming to either customer specification or other National and International Standards.

PVC - Insulated and PVC - Sheathed (heavy duty) single core
unarmourd(YY) power cable with copper conductor for working
voltages upto & including 1100 V to IS:1554 (Part 1) – 1988

Nominal Conductor area

Nominal
Thickness
of
Insulation

Nominal
outer
sheath
thickness

Apporx.
overall
Diameter

Apporx.
weight

Maximum
Conductor
Resistance
at 20° C

Standard
Packing

sq.mm

mm

mm

mm

kg/km

ohm/km

m


16

25

35

50

70

95

120

150

185


1.0

1.2

1.2

1.4

1.4

1.6

1.6

1.8

2.0


1.8

1.8

1.8

1.8

1.8

1.8

2.0

2.0

2.0


11.0

12.5

13.6

15.1

17.1

19.2

21.3

23.0

25.2


245

355

455

599

801

1075

1336

1612

1993


1.15

0.727

0.524

0.387

0.268

0.193

0.153

0.124

0.0991


500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

Note: 16 sq.mm stranded circular - all other sizes compact circular

PVC - Insulated and PVC - Sheathed (heavy duty) single core
armourd(YWAY) power cable with copper conductor for working
voltages upto & including 1100 V to IS:1554 (Part 1) – 1988


Nominal
Conductor
area

Nominal
Thickness
of
Insulation

Nominal Armour Diameter

Minimum outer sheath thickness

Apporx.
overall
Diameter

Apporx.
weight

Maximum
Conductor
Resistance
at 20° C

Standard
Packing

sq.mm

mm

mm

mm

mm

kg/km

ohm/km

m


16

25

35

50

70

95

120

150

185


1.3

1.5

1.5

1.7

1.7

1.9

1.9

2.1

2.3


1.4

1.4

1.4

1.4

1.4

1.6

1.6

1.6

1.6


1.24

1.24

1.24

1.24

1.40

1.40

1.40

1.40

1.40


13.7

14.7

15.8

17.4

19.7

20.6

22.3

24.0

26.2


353
479

590

751

986

1314

1578

1873

2277


1.15

0.727

0.524

0.387

0.268

0.193

0.153

0.124

0.0991


500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

500±5%







PVC - Insulated and PVC - Sheathed (heavy duty)
2 core Unarmourd(YY) and armourd (YWY/YFY) power cable with copper conductor for working voltages upto & including 1100 V to IS:1554 (Part 1) - 1988



Nominal
Cond-
uctor
area

Nominal
Thick-
ness
of
Insu-
lation

Min. thick-ness
of inner
sheath

Un armoured

Armoured

Max
Condu-ctor
Resi-stance
at 20° C

Standard
Packing

Nominal
outer
sheath
thick-ness

Approx. Overall Diameter

Apporx.
weight

Nominal
Armour
Dime-nsion

Min.
outer
sheath
thick-ness

Approx. Overall Diameter

Apporx.
weight

sq.mm

mm

mm

mm

mm

kg/km

mm

mm

mm

kg/km

ohm/km

m


*1.5

*2.5

*4

*6


0.8

0.9

1.0

1.0


0.3

0.3

0.3

0.3


1.8

1.8

1.8

1.8


11.2

12.4

13.7

14.8


195

243

303

375


1.4

1.4

1.4

1.4


1.24

1.24

1.24

1.24


12.8

14.0

15.3

16.4


435
511

603

719


12.1

7.41

4.61

3.08


500±5%

500±5%

500±5%

500±5%


**1.5

**2.5

**4

**6

**10

**16


0.8

0.9

1.0

1.0

1.0

1.0


0.3

0.3

0.3

0.3

0.3

0.3


1.8

1.8

1.8

1.8

1.8

1.8


11.6

12.9

14.3

15.1

17.3

19.4


195

243

303

375

487

554


1.4

1.4

1.4

1.4

1.4

4x0.8


1.24

1.24

1.24

1.24

1.24

1.40


13.2

14.5

15.9

17.1

18.9

20.1


435

511

603

719

817

834


12.1

7.41

4.61

3.08

1.83

1.15


500±5%

500±5%

500±5%

500±5%

500±5%

500±5%


#25

#35

#50

#70


1.2

1.2

1.4

1.4


0.3

0.3

0.3

0.3


2.0

2.0

2.0

2.0


17.8

19.6

22.0

24.4


790
982

1282

1711


4x0.8

4x0.8

4x0.8

4x0.8


1.40

1.40

1.40

1.56


18.2

20.0
22.4

25.2


1111

1314

1617

2169


0.727

0.524

0.387

0.268


500±5%

500±5%

500±5%

500±5%

* Solid conductor               **Stranded conductor                   #Shaped conductor
                                      


PVC - Insulated and PVC - Sheathed (heavy duty) 3 core Unarmourd(YY) and armourd (YWY/YFY) power cable with copper conductor for working voltages upto & including 1100 V to IS:1554 (Part 1) - 1988



Nominal
Cond-
uctor
area

Nominal
Thick-
ness
of
Insu-
lation

Min. thick-ness
of inner
sheath

Un armoured

Armoured

Max
Condu-ctor
Resi-stance
at 20° C

Standard
Packing

Nominal
outer
sheath
thick-ness

Approx. Overall Dia-meter

Apporx.
weight

Nominal
Armour
Dime-nsion

Min.
outer
sheath
thick-ness

Approx. Overall Dia-meter

Apporx.
weight

sq.mm

mm

mm

mm

mm

kg/km

mm

mm

mm

kg/km

ohm/km

m


*1.5

*2.5

*4

*6


0.8

0.9

1.0

1.0


0.3

0.3

0.3

0.3


1.8

1.8

1.8

1.8


11.7

13.0

14.4

15.6


220

279

362

456


1.4

1.4

1.4

1.4


1.24

1.24

1.24

1.24


13.3

14.6

16.0

17.2


470

563

699

823


12.1

7.41

4.61

3.08


500±5%

500±5%

500±5%

500±5%


**1.5

**2.5

**4

**6

**10

**16


0.8

0.9

1.0

1.0

1.0

1.0


0.3

0.3

0.3

0.3

0.3

0.3


1.8

1.8

1.8

1.8

1.8

1.8


12.1

13.5

15.0

16.3

18.2

20.4


220

279

362

456

604

773


1.4

1.4

1.4

1.4

1.4

4x0.8


1.24

1.24

1.24

1.24

1.24

1.40


13.7

15.1

16.6

17.9

20.2

21.2


470

563

699

823

1032

1068


12.1

7.41

4.61

3.08

1.83

1.15


500±5%

500±5%

500±5%

500±5%

500±5%

500±5%


#25

#35

#50

#70

#95

#120

#150

#185


1.2

1.2

1.4

1.4

1.6

1.6

1.8

2.0


0.3

0.3

0.3

0.4

0.4

0.4

0.5

0.5


2.0

2.0

2.0

2.2

2.2

2.2

2.4

2.6


20.9

23.1

26.3

29.6

32.8

35.2

39.4

43.6


1104

1399

1564

2305

3344

4084

5033

6189


4x0.8

4x0.8

4x0.8

4x0.8

4x0.8

4x0.8

4x0.8

4x0.8


1.40

1.40

1.56

1.56

1.56

1.72

1.88

1.88


21.3

23.5

26.9

30.0

33.0

35.8

39.8

43.6


1439

1751

1997

1991

3880

4699

5715

6889


0.727

0.524

0.387

0.268

0.193

0.153

0.124

0.0991


500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

250±5%

250±5%

* Solid conductor               **Stranded conductor                   #Shaped conductor


PVC - Insulated and PVC - Sheathed (heavy duty)
3 1/2 core Unarmourd(YY) and armourd (YWY/YFY) power cable with copper conductor for working voltages upto & including 1100 V to IS:1554 (Part 1) - 1988


Nominal
Cond-
uctor
area

Nominal
Thick-
ness
of Insu-
lation

Min. thick-ness
of inner
sheath

Un armoured

Armoured

Max
Condu-ctor
Resi-stance
at 20° C

Fullcore/
Half core

Standard
Packing

Full
core

Half core

Nominal
outer
sheath
thick-ness

Approx. Overall Dia-meter

Apporx.
weight

Nominal
Armour
Dime-nsion

Min.
outer
sheath
thick-ness

Approx. Overall Dia-meter

Apporx.
weight

sq.mm

mm

mm

mm

mm

mm

kg/km

mm

mm

mm

kg/km

ohm/km

m


25/16

35/16

50/25

70/35

95/50

120/70

150/70

185/95


1.2

1.2
1.4

1.4

1.6
1.6

1.8

2.0


1.0

1.0

1.2
1.2

1.4

1.4

1.4

1.6


0.3

0.3

0.3

0.4

0.4

0.5

0.5

0.5


2.0

2.0

2.0

2.2

2.2

2.4

2.4

2.6


23.2

25.6

27.8

30.4

34.4

38.2

42.0

45.9


1303

1621

2114

2936

3880

4861

5684

8963


4x0.8

4x0.8

4x0.8

4x0.8

4x0.8

4x0.8

4x0.8

4x0.8


1.40

1.40

1.56

1.56

1.56

1.72

1.88

2.04


23.6

26.0

28.2

30.6

34.6

38.4

42.4

46.3


1689

2054

2658

3497

4397

5510

6486

9826


0.727/1.15

0.524/1.15

0.387/0.727

0.268/0.524

0.193/0.387

0.153/0.268

0.124/0.268

0.0991/0.193


500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

250±5%

250±5%

All siezes - Shaped conductor


PVC - Insulated and PVC - Sheathed (heavy duty)
4 core Unarmourd(YY) and armourd (YWY/YFY)
power cable with copper conductor for working voltages
upto & including 1100 V to IS:1554 (Part 1) - 1988



Nominal
Cond-
uctor
area

Nominal
Thick-
ness
of
Insu-
lation

Min. thick-ness
of inner
sheath

Un armoured

Armoured

Max
Condu-ctor
Resi-stance
at 20° C

Standard
Packing

Nominal
outer
sheath
thick-ness

Approx. Overall Dia-meter

Apporx.
weight

Nominal
Armour
Dime-nsion

Min.
outer
sheath
thick-ness

Approx. Overall Dia-meter

Apporx.
weight

sq.mm

mm

mm

mm

mm

kg/km

mm

mm

mm

kg/km

ohm/km

m


*1.5

*2.5

*4

*6


0.8

0.9

1.0

1.0


0.3

0.3

0.3

0.3


1.8

1.8

1.8

1.8


12.5

13.9

15.5

16.9


255

328

423

540


1.4

1.4

1.4

1.4


1.24

1.24

1.24

1.24


14.1

15.5

17.1

18.5


523

635

769

921


12.1

7.41

4.61

3.08


500±5%

500±5%

500±5%

500±5%


**1.5

**2.5

**4

**6

**10

**16


0.8

0.9

1.0

1.0

1.0

1.0


0.3

0.3

0.3

0.3

0.3

0.3


1.8

1.8

1.8

1.8

1.8

2.0


12.9

14.5

16.2

17.7

19.8

22.7


255

328

428

540

728

974


1.4

1.4

1.4

1.4

4x0.8

4x0.8


1.24

1.24

1.24

1.24

1.40

1.40


14.5

16.1

17.8

19.7

20.6

23.1


523

635

769

921

1051

1281


12.1

7.41

4.61

3.08

1.83

1.15


500±5%

500±5%

500±5%

500±5%

500±5%

500±5%


#25

#35

#50

#70

#95

#120

#150

#185


1.2

1.2

1.4

1.4

1.6

1.6

1.8

2.0


0.3

0.3

0.4

0.4

0.4

0.5

0.5

0.6


2.0

2.0

2.2

2.2

2.2

2.4

2.6

2.8


23.1

25.4

29.8

34.4

37.0

40.6

45.8

50.3


1417

1804

2384

3273

4358

5409

6589

8184


4x0.8

4x0.8

4x0.8

4x0.8

4x0.8

4x0.8

4x0.8

4x0.8


1.40

1.40

1.56

1.56

1.72

1.72

1.88

2.04


23.5

25.8

30.0

34.6

37.6

40.8

46.1

50.5


1806

2210

2892

3832

4977

6102

7384

9070


0.727

0.524

0.387

0.268

0.193

0.153

0.124

0.0991


500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

250±5%

250±5%

* Solid conductor               **Stranded conductor                   #Shaped conductor

 

CLICK HERE TO VISIT:

POWER CABLES -  AS PER IS:1554

POWER CABLES – AS PER BS:6346:1989

PVC INSULATED ARMOURED / UNARMOURED CABLES TO BS 6346:1989

Conductor
Copper conductors are made from high conductivity Copper rods of 8 mm diameter. The rod is drawn to required sizes for the construction of conductors of different areas of cross section conforming to SS 6360.

Conductors for Power cables with cross sectional area up to 16 sq.mm are either solid circular or stranded circular (non-compact) conforming to Table 1 Class 1 or Table 2 Class 2 of SS 6360. Conductors for Power Cables with cross sectional area 25 sq.mm. and above are stranded shaped conforming to Table 2 Class 2 of BS:6360.

Insulation
PVC Compound is insulated over conductor by extrusion process with required thickness of insulation and conforms to BS:6346:1989.

PVC insulation, is of type TI 1 PVC compound conforming to BS 6746:1990, suitable for a continuous conductor operating temperature not exceeding 70°C.

Identification of core colours:

No. of cores

  Identification

1

  Red or Black 

2

  Red and Black

3

  Red, Yellow and Blue

4

  Red, Yellow, Blue and Black





 






Laying up

Cores are laid up with right hand lay in the outermost layer in the sequence of above core colours. Interstices, if necessary, are covered with non hygroscopic fillers and covered with a binder tape for compactness and to maintain reasonably round shape.

Bedding

All multi-core cables of nominal area less than 10 sq.mm have extruded bedding. Cables having nominal area 10 sq.mm and above have either extruded PVC bedding or 2 or more layers of PVC or other synthetic tape, which is compatible to insulation material and removable without any damage to insulation. Single core armoured cables have extruded PVC bedding.

Armouring

Single core cables for use on A.C systems, are armoured with single layer of aluminium wires. Multi-core armoured cables have single layer of Galvanized Steel wire Armour over bedding with left hand lay.

Other armours like steel strip, tape can also be provided against customer specification.

Oversheath

Sheaths are extruded with Black PVC compound of type TM 1 and comply with the requirements of BS 6746:1990. When specified anti termite properties can be provided on the sheath.

Packing, storage and handling

Cables for power supplies are always packed in appropriate sizes of strong and seasoned wooden drums designed to withstand long distance transit and preservation in stores.

Power cables of all sizes of single core, Power cables of multi-cores upto 120 sq.mm. are packed in standard lengths of 500 metre + 5% and Power cables of multi-cores of 150 sq.mm. and above are packed in standard lengths of 250 metre + 5%. It is advised that drums are always to be stored in concrete floors to avoid sinking in mud and damages or deterioration of drum flanges and shall not be stored on its flanges horizontal to ground. Drums are designed for easy handling when transported by cranes or mounted on cable drum wheels for laying. Cables in drums shall be stored away from boilers and furnaces.

Customer orientation

Against specific requirement and application, Q-Flx Wires & Cables  can offer cables conforming to either customer specification or other National and International Standards.

Current ratings

Current ratings of cables installed in air and around buildings reference should be made to'Regulations for electrical installations' (IEE Wiring Regulations), 15th Edition and the current ratings of cables installed in other situations reference should be made to 'Current rating standards for distribution cables', ERA 69-30:Part Ill.

Minimum installation radius

Circular copper conductors, unarmoured



Circular copper conductor, armoured
Shaped copper conductors armoured or unarmoured

upto 10 mm overall diameter = 3D
above 10 mm and upto 25 mm overall diameter = 4D
above 25 mm overall diameter = 6D

any overall diameter = 6D
any overall diameter = 8D








Conditions of laying

1. Continuous operating temperature of conductor 70° C
2. Ambient Temperature 50° C
3. Ground Temperature 35°C
4. Depth of laying in ground 0.5 m
5. Thermal resistivity of ground 120° C cm/W

 

PVC Insulated and PVC sheathed single core unarmoured cable
with copper conductor 600 / 1000 V to IEC 502 : 1994

 

Nominal Conductor Area

Thickness of Insulation

Thickness of Oversheath

Approx. Overall Diameter

Approx.
Cable Weight

Maximum Conductor Resistance At 20° C

Standard Packing

Sq.mm

mm

mm

mm

kg/km

ohm/km

m


1

1.5

2.5

4

6

10

16

25

35


0.8

0.8

0.8

1.0

1.0

1.0

1.0

1.2

1.2


1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4

1.4


6.4

6.8

7.2

8.2

8.7

9.6

10.9

12.5

13.5


50

60

75

100

125

170

235

335

440


18.1

12.1

7.41

4.61

3.08

1.83

1.15

0.727

0.524


100

100

100

100

100

100

100

100

100

PVC Insulated and PVC sheathed single core unarmoured and
armoured cable with copper conductor 600 / 1000 V to IEC 502 : 1994

Nominal
Con-
ductor
Area

Thick-
ness
of
Insu-
lation

Unarmoured

armoured

Maxi-
mum Condu-
ctor Resis-
tance At 20° C

Standard Packing

Thick-
ness
of
Over
sheath

Approx. Overall Dia-
meter

Approx.
Cable Weight

Thick-
ness
of
Extruded
Bedding

Diameter
of
Armour
Wire

Thickness
of Over
sheath

Approx. Overall Dia-
meter

Approx.
Cable Weight

Sq.mm

mm

mm

mm

kg/km

mm

mm

mm

mm

kg/km

ohm/km

m


50

70

95

120

150

185


1.4

1.4

1.6

1.6

1.8

2.0


1.4

1.4

1.5

1.5

1.6

1.7


15.1

16.9

19.4

21.0

23.2

25.8


580

790

1090

1340

1360

2080


0.8

0.8

0.8

1.0

1.0

1.0


1.25

1.25

1.25

1.6

1.6

1.6


1.5

1.6

1.6

1.7

1.7

1.8


19.1

21.1

23.4

26.3

28.3

30.8


820

1070

1390

1690

1960
2450


0.387

0.268

0.193

0.153

0.124

0.0991


500±5%

500±5%

500±5%

500±5%

500±5%

500±5%




PVC Insulated and PVC sheathed 2 core unarmoured and armoured cable with copper conductor 600 / 1000 V to BS 6346 : 1989



Nominal
Con-
ductor
Area

Thick-
ness
of
Insu-
lation

Unarmoured

armoured

Maxi-
mum Condu-
ctor Resis-
tance At 20° C

Standard Packing

Thick-
ness
of
Over
sheath

Approx. Overall Dia-
meter

Approx.
Cable Weight

Thick-
ness
of
Extruded
Bedding

Diameter
of
Armour
Wire

Thickness
of Over
sheath

Approx. Overall Dia-
meter

Approx.
Cable Weight

Sq.mm

mm

mm

mm

kg/km

mm

mm

mm

mm

kg/km

ohm/km

m


1.5

2.5

4

6

10

16

25

35

50

70


0.6

0.7

0.8

0.8

1.0

1.0

1.2

1.2

1.4

1.4


1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.9


9.5

9.8

11.5

12.8

16.1

18.6

18.4

20.1

22.8

25.5


130

190

240

310

450

600

820

1040

1250

1670


0.8

0.8

0.8

0.8

0.8

0.8

1.0

1.0

1.0

1.0


0.9

0.9

0.9

0.9

1.25

1.25

1.6

1.6

1.6

1.6


1.3

1.4

1.4

1.5

1.6

1.6

1.7

1.8

1.9

1.9


11.7

13.1

15.1

16.5

20.1

21.9

23.0

24.9

27.8

30.4


325

390

490

580

840

990

1480

1770

1900

2430


12.1

7.41

4.61

3.08

1.83

1.15

0.727

0.524

0.387

0.268


500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

500±5%
500±5%

500±5%
500±5%


Thickness of oversheath and approximate overall diameter of unarmoured cables 1.5 sq. mm - 6 sq. mm are conforming to
IEC 502 : 1994. 1.5 & 2.5 sq. mm cables are with circular solid conductors. However, cables with circular stranded conductors can also be offered

 

PVC Insulated and PVC sheathed 3 core unarmoured
and armoured cable with copper
conductor 600 / 1000 V to BS 6346 : 1989



Nominal
Con-
ductor
Area

Thick-
ness
of
Insu-
lation

Unarmoured

armoured

Maxi-
mum Condu-
ctor Resis-
tance At 20° C

Standard Packing

Thick-
ness
of
Over
sheath

Approx. Overall Dia-
meter

Approx.
Cable Weight

Thick-
ness
of
Extruded
Bedding

Diameter
of
Armour
Wire

Thickness
of Over
sheath

Approx. Overall Dia-
meter

Approx.
Cable Weight

Sq.mm

mm

mm

mm

kg/km

mm

mm

mm

mm

kg/km

ohm/km

m


1.5

2.5

4

6

10

16

25

35

50

70

95

120

150

185


0.6

0.7

0.8

0.8

1.0

1.0

1.2

1.2

1.4

1.4

1.6

1.6

1.8

2.0


1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.8

1.9

2.1

2.2

2.3

2.5


10.0

11.4

13.2

14.6

17.0

19.7

20.4

22.4

25.5

28.7

33.3

36.3

40.0

44.6


110

160

225

330

470

655

955

1250

1665

2295

3145

3890

4760

5950


0.8

0.8

0.8

0.8

0.8

0.8

1.0

1.0

1.0

1.2

1.2

1.2

1.4

1.4


0.9

0.9

0.9

1.25

1.25

1.25

1.6

1.6

1.6

2.0

2.0

2.0

2.5

2.5


1.4

1.4

1.4

1.5

1.6

1.6

1.7

1.8

1.9

2.0

2.1

2.2

2.4

2.5


12.3

13.6

15.8

18.0

21.2

23.1

25.0

27.3

30.5

35.0

39.3

42.2

47.5
51.9


307

387

493

701

967

1219

1614

1992

2534

3518

4510

5375

6810

8190


12.1

7.41

4.61

3.08

1.83

1.15

0.727

0.524

0.387

0.268

0.193

0.153

0.124

0.0991


500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

500±5%

250±5%

250±5%



Thickness of oversheath and approximate overall diameter of unarmoured cables 1.5 sq. mm - 6 sq. mm are conforming to
IEC 502 : 1994. 1.5 & 2.5 sq. mm cables are with circular solid conductors. However, cables with circular stranded conductors can also be offered.

 

PVC Insulated and PVC sheathed 4 core unarmoured
and armoured cable with copper conductor
600 / 1000 V to BS 6346 : 1989


Nominal Conductor Area

Thickness of Insulation

Unarmoured

Armoured

Maximum Conductor Resistance at 20. C

Standard Packing

Thickness of Over Sheath

Approx. Overall Diameter

Approx. Cable Weight

Thickness of Extruded bedding

Diameter of Armour Wire

Thickness of Over Sheath

Approx. overall Diameter

Approx. cable weight.

Phase

Neutral

Phase

Neutral

 

 

 

 

 

 

 

 

Phase

Neutral

  

Sq.mm

Sq.mm

Mm

Mm

 Mm Mm Kg/km Mm Mm Mm Mm Kg/km

Ohm/km

Ohm/km

 m

25

16

1.2

1.0

1.8

22.9

1270

1.0

1.6

1.8

27.8

1900

0.727

1.15

500+5 %

35

16

1.2

1.0

1.8

24.7

1620

1.0

1.6

1.8

29.5

2300

0.524

1.15

500+5 %

50

25

1.4

1.2

1.9

28.3

2140

1.0

1.6

1.9

33.1

3050

0.387

0.727

500+5 %

70

35

1.4

1.2

2.0

32.0

2900

1.2

2.0

2.0

38.0

4130

0.268

0.524

500+5 %

95

50

1.6

1.4

2.1

37.5

3940

1.2

2.0

2.2

43.7

5370

0.193

0.387

500+5 %

120

70

1.6

1.4

2.2

41.4

4900

1.4

2.5

2.3

49.0

6840

0.153

0.268

500+5 %

150

70

1.8

1.4

2.4

44.7

5900

1.4

2.5

2.4

52.0

8040

0.124

0.268

250+5 %

185

95

2.0

1.6

2.5

49.9

7420

1.4

2.5

2.5

57.2

9760

0.0991

0.193

250+5 %

Current rating of PVC insulated cables with copper conductor 600 /1000 V
armoured and unarmoured to BS: 6346 : 1989


Conductor
Size

Armoured

Unarmoured

In Air

In Ground

In Air

1 Core

2 Core

3 Core

1 Core

2 Core

3 Core

1 Core

2 Core

3 Core

Sq. mm

A

A

A

A

A

A

A

A

A


1.5

2.5

4

6

10

16

25

35

50

70

95

120

150

185


22

33

42

53

69

90

117

143

201

252

306

353

398

449


20

28

36

47

64

85

112

137

166

209

258

298

338

391


16

23

31

38

54

72

95

113

145

179

220

256

294

336


33

48

62

77

99

126

162

197

241

297

354

398

439

489


29

40

53

68

91

118

157

188

223

278

333

378

423

479


26

34

47

57

77

100

130

153

190

231

277

315

351

398


20

30

39

49

59

86

111

138

195

246

303

353

404

466


18

24

33

42

59

81

107

131

160

201

250

290

333

384


16

22

29

37

52

70

91

112

145

174

214

250

285

329



When installed in air cables are spaced between centres twice the diameter of cable
When laid in ground cables are touching together

A.C. Resistance and Reactance

Nominal Conductor
area

Resistance

Resistance


*Single
core


Multi
Core

*Single core

Multi Core

Trefoil

Flat

 

Sq.mm

Ohm/Km

Ohm/Km

Ohm/Km

Ohm/Km

Ohm/Km


1.0

1.5

2.5

4

6

10

16

25

35

50

70

95

120

150

185


22.72

15.19

9.3

5.79

3.87

2.30

1.44

0.913

0.658

0.486

0.337

0.243

0.193

0.159

0.126


-

15.9

9.30

5.79

3.87

2.30

1.44

0.913

0.658

0.486

0.337

0.243

0.193

0.159

0.126


-

-

-

-

-

-

-

0.121

0.116

0.115

0.112

0.107

0.103

0.101

0.099


-

-

-

-

-

-

-

0.210

0.202

0.201

0.195

0.188

0.186

0.185

0.184


0.116

0.115

0.111

0.096

0.092

0.091

0.086

0.086

0.083

0.080

0.077

0.077

0.075

0.075

0.074



*Aluminium wire armoured cable