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Ahmedabad, Gujarat (India)

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About Us

Armoured Unarmoured Cables

PVC Insulated Heavy Duty Power + Control Cable as per IS 1554 (P-1)

- Heavy Duty Performance
- Offers the best combination safety, efficiency & economy

Applications : Heavy Duty Power and Control Cables are used for Underground power supply by utility provider for Street Lights, Industrial Automation with mechanical strength for protection on insulated cores and other industrial applications.

Specifications : IS 1554 (P-1)

Construction

Conductor : ETP Grade Copper
Insulation : PVC Type A or C
Inner Sheath : PVC Type ST1 or ST2
Armour : Galvanised Steel Wire Strip
Outer Sheath : PVC Type ST1 or ST2

IS Specifications

8130
5831
5831
3975
5831

The sheath is also provided in with FR and FRLSH PVC

Core Identification : For power cable and control cable upto 4 cores, the cores are identified by different colours as per IS 1554: (Part1)

Single Core : Red, Yellow, Blue, Black, etc. (only unarmoured).

2 Core : Red and Black.
3 core : Red, Yellow and Blue.
4 Core : Red, Yellow, Blue and Black.
5 Core : Red, Yellow, Blue, Black and Grey.

Duration of short ckt. in sec.

1 cycle
= 0.02s

2
cycle

5
Cycles

10
Cycle

25
Cycle

50
Cycle

2 Sec.

3 Sec.

4 Sec.

5 Sec.

Short ckt. Constant per unit area

536

378

239

169

107

75.5

53

43.6

37.8

34.0

Tables I to III : Copper Conductor PVC Insulated. PVC Sheathed Cables.
Table I : 1.5 sqmm. Solid Copper Conductor PVC insulated. PVC Sheathed. Unarmoured (YY) / Armoured (YWY & YFY) Multicore Control Cables - 650/1100 Volts

                                               Unarmoured              Armoured                         Max. DC               In Air                 In Ground

Size




Nom. thickness of PVC insulation mm.

Cores




Approx Overall cable dia mm.

Approx Weight Kg./km.


nom steel armour size
mm.

Approx. Overall cable Dia. mm.

Approx Weight Kg./km.


conductor resistance At 20°C Ohm/km

PVC insulation Amps.


HRPVC insulation Amps.


PVC insulation Amps.


HRPVC insulation Amps.


1.5

0.8

2

10.65

154

1.4

12.60

370

12.1

20

24

23

27

1.5

0.8

3

11.15

180

1.4

13.10

418

12.1

17

21

21

24

1.5

0.8

4

11.9

212

1.4

13.85

475

12.1

17

21

21

24

1.5

0.8

5

12.75

249

1.4

14.70

537

12.1

14

17

17

19

1.5

0.8

7

13.75

305

1.4

15.70

630

12.1

13

16

15

18

1.5

0.8

8

14.00

326

1.4

15.95

655

12.1

12

15

14

17

1.5

0.8

12

17.35

497

4x0.8

18.40

797

12.1

12

15

14

16

1.5

0.8

14

18.15

555

4x0.8

19.20

875

12.1

12

14

14

16

1.5

0.8

16

19.40

634

4x0.8

20.00

953

12.1

11

13

13

15

1.5

0.8

18

20.35

703

4x0.8

20.90

1033

12.1

10

12

12

14

1.5

0.8

20

20.40

731

4x0.8

21.00

1090

12.1

10

12

11

13

1.5

0.8

24

23.50

937

4x0.8

24.10

1304

12.1

9

11

11

12

1.5

0.8

27

24.00

1003

4x0.8

24.60

1399

12.1

9

11

11

12

1.5

0.8

30

24.80

1086

4x0.8

25.40

1502

12.1

9

11

11

12

1.5

0.8

37

26.50

1276

4x0.8

27.10

1774

12.1

8

8

9

11

1.5

0.8

44

29.90

1584

4x0.8

30.60

2056

12.1

8

10

9

11

1.5

0.8

52

31.15

1774

4x0.8

31.85

2302

12.1

8

9

9

10

1.5

0.8

61

32.90

2018

4x0.8

33.60

2594

12.1

7

9

9

10

Table II: 2.5 sqmm. Solid Copper Conductor, PVC insulated, PVC Sheathed, Unarmoured (YY)/Armoured (YWY & YFY) Multicore Cables - 650/1100 Volts

                                               Unarmoured              Armoured                         Max. DC               In Air                 In Ground

Size




Nom. thickness of PVC insulation mm.

Cores




Approx Overall cable dia mm.

Approx Weight Kg./km.


nom steel armour size
mm.

Approx. Overall cable Dia. mm.

Approx Weight Kg./km.


conductor resistance At 20°C Ohm/km

PVC insulation Amps.


HRPVC insulation Amps.


PVC insulation Amps.


HRPVC insulation Amps.


2.5

0.9

2

11.85

202

1.4

13.80

449

7.41

27

32

32

37

2.5

0.9

3

12.40

238

1.4

14.4

503

7.41

24

29

27

31

2.5

0.9

4

13.35

287

1.4

15.30

577

7.41

24

29

27

31

2.5

0.9

5

14.50

345

1.4

16.45

668

7.41

19

23

23

27

2.5

0.9

7

15.55

423

1.4

17.40

811

7.41

17

20

20

23

2.5

0.9

8

15.75

451

1.4

17.70

811

7.41

17

20

20

23

2.5

0.9

12

20.25

720

4x0.8

20.85

1048

7.41

17

20

20

23

2.5

0.9

14

21.45

819

4x0.8

22.05

1171

7.41

16

19

19

22

2.5

0.9

16

22.40

909

4x0.8

23.1

1284

7.41

15

18

18

20

2.5

0.9

18

23.50

1009

4x0.8

24.4

1406

7.41

14

17

17

19

2.5

0.9

20

23.60

1057

4x0.8

24.4

1462

7.41

13

16

16

18

2.5

0.9

24

27.10

1343

4x0.8

28.00

1826

7.41

12

15

15

17

2.5

0.9

27

27.70

1444

4x0.8

29.10

1973

7.41

12

15

15

17

2.5

0.9

30

28.60

1565

4x0.8

30.15

2123

7.41

11

13

13

15

2.5

0.9

37

31.10

1884

4x0.8

32.20

2457

7.41

11

13

13

15

2.5

0.9

44

34.70

2301

4x0.8

35.40

2918

7.41

10

12

12

14

2.5

0.9

52

36.20

2592

4x0.8

36.90

3239

7.41

10

12

12

13

2.5

0.9

61

38.30

2961

4x0.8

39.20

3669

7.41

9

11

11

12

Table III : 2 core, 3 core & 4 core copper conductor. PVC Sheathed, Unarmoured (YY)/Armoured (YWY & YFY)* cables - 650/1100 Volts.

                                               Unarmoured              Armoured                         Max. DC               In Air                 In Ground

No. of
Cores


Nom. cross sectional Area Sq. mm.

Class of Conductor



Nom. Thickness of PVC insulation mm.

Approx Overall Db. mm.


Approx Overall Weight Kg./km.

Nom. Steel Armour Size mm.

Approx Overall Dia. mm.


Approx Weight Kg./km.


conductor resistance At 20°C Ohm/km

PVC insulation Amps.


HRPVC insulation Amps.


PVC insulation Amps.


HRPVC insulation Amps.


2

4

1

1.0

13.25

264

1.4

15.2

585

4.61

35

43

41

48

2

4

2

1.0

13.95

292

1.4

15.9

632

4.61

35

43

41

48

2

6

1

1.0

14.25

327

1.4

16.2

682

3.08

45

55

50

58

2

6

2

1.0

15.05

368

1.4

17.0

751

3.08

45

55

50

58

2

10

2

1.0

16.95

524

4x0.8

17.7

867

1.83

60

73

70

81

2

16

2

1.0

19.60

747

4x0.8

20.2

1102

1.15

78

95

90

105

2

25

2

1.2

23.20

1092

4x0.8

23.8

1874

0.727

105

123

115

122

2

35

2

1.2

25.60

1394

4x0.8

26.2

1891

0.524

125

147

140

145

3

4

1

1.0

14.05

317

1.4

16.00

659

4.61

30

37

36

42

3

4

2

1.0

14.70

351

1.4

16.65

713

4.61

30

37

36

42

3

6

1

1.0

15.05

401

1.4

17.00

770

3.08

39

48

45

53

3

6

2

1.0

15.90

451

1.4

18.15

860

3.08

39

48

45

53

3

10

2

1.0

17.95

657

4x0.8

19.00

1000

1.83

52

63

60

69

3

16

2

1.0

20.75

939

4x0.8

21.35

1323

1.15

66

81

77

90

3

25

2

1.2

24.70

1405

4x0.8

25.30

1874

0.727

90

106

99

105

3

35

2

1.2

27.20

1810

4x0.8

27.80

2336

0.524

110

129

120

125

4

4

1

1.0

15.15

385

1.4

17.10

762

4.61

30

37

39

42

4

4

2

1.0

15.90

430

1.4

18.15

828

4.61

30

37

39

42

4

6

1

1.0

16.70

506

1.4

17.40

878

3.08

39

48

45

53

4

6

2

1.0

17.20

559

4x0.8

18.25

901

3.08

39

48

45

53

4

10

2

1.0

20.00

837

4x0.8

20.60

1220

1.83

52

63

60

69

4

16

2

1.0

22.70

1180

4x0.8

23.35

1621

1.15

65

81

77

90

4

25

2

1.2

27.05

1767

4x0.8

27.65

2293

0.727

90

106

99

105

4

35

2

1.2

30.20

2328

4x0.8

30.90

2912

0.524

110

129

120

125

* Y=PVC Insulation, W=Steel round wire armour, F=Steel strip armour cables with stranded conductors also made on request.
* The above data is indicative and may be revised without prior intimation.
* The size up to 50.0 sqmm core available on request.


Table - B Current ratings

The current rating given in tables are based on normal conditions of installation described below:

Maximum Conductor temperature 70O C for PVC insulation & 80O C for HRPVC insulation. Thermal Resistivity of soil 150O C cm/w Thermal Resistivity of PVC 650O C cm/w Ground temperature 40O C (To the highest point of cable laid direct in the ground) Depth of laying 75cms

Formula for calculating the Short Circuit for other durations

Where........


Note: For cables in air , no reduction in current rating is necessary provided that

The horizontal clearance between circuits is (a) not less than six times the overall diameter of an individual cable, and (b) not less than the overall width of an individual circuit, except that the horizontal clearance may need not in any case exceed 150mm.

If the number of circuits exceeds 4, they are installed in a horizontal plane. However, for installation conditions other above, current rating factors incorporated in IS 3961 Part II please be applied.

The following points should be taken in to consideration before selecting any particular size and type of cable:

The system of power & voltage source where the cables are being used.
Conditions of installation at site.
Current carrying capacity of cable.
Voltage drop of cable.
Short circuit capacity of cable.
Availability of the selected size of cable.