gemscab lt xlpe

7/31/2019 Gemscab Lt Xlpe

1/16


2/16

IntroductionGEMSCAB has been associated with marketing and manufacturing of Electric Cables

for over a period 4 decades now. Customer satisfaction has been the prime focus of

GEMSCAB and today it has established itself as a consistence, competent and a

compatible manufacturer of Power, Control, Instrumentation and Flexible Cables.

GEMSCAB is proud to have succeeded in creating a pool of resources to provide

quality products and services.

GEMSCAB has a state-of-the-art manufacturing plant at Bhiwadi (Rajasthan) and

has been supplying cables to Industries, Process Industries, Automobile, Power

Generation, Transmission and Distribution, Housing and Commercial Projects.

GEMSCAB has been growing during the last 5 years at a consistent growth rate of

30% to 50% and is expected to grow further in coming years by doubling its capacities

and adding new product lines.

GEMSCAB has now set-up a state-of-the-art HT Cables manufacturing plant to meet

the increasing demand in infrastructure projects like Power, Steel, Cement Industries

etc. and to associate itself with the growing economy of the country.

GEMSCAB LT XLPE cables are being manufactured and tested at its Bhiwadi Complex.

The cables are manufactured on latest machinery and provideded with Normal PVC

Outer Sheath / FR Outer Sheath / FRLS Outer Sheath. These Cables are manufactured

as per IS:7098 / (Part-1) and as per customer specifications.

GEMSCAB Bhiwadi Plant is an ISO-9001:2000 certified unit, where cables are

manufactured as per National & International Standards and customers specifications.

A well-equipped Test Lab and modern instruments are constantly upgraded to carry

out quality checks and testing on all incoming and f inished material.

GEMSCAB is approved by prestigious clients and consultants. It has established its

name in providing LT range of cables to its customers.


3/16

GEMSCAB LT-XLPE Cables

GEMSCAB LT-XLPE Cables are manufactured as per IS:7098 / Part-I to be suitable

for conductor temperature of 900C and short circuit capacity 2500C. GEMSCAB LT-

XLPE Cables have excellent Mechanical, Electrical and Thermal Properties surpassing

those of conventional polymeric dielectrics. The superior properties of XLPE have

led to lower insulation thickness, high current carrying capacity, reduced weight and

dimension. GEMSCAB LT-XLPE Cable is the economic solution for low tension power

distribution with high efficiency and total reliability.

Because of the excellent mechanical and electrical properties GEMSCAB LT-XLPE

CABLES can be used extensively in Power Stations, Industrial Units, Projects and Power

Transmission and Distributions. They are ideally suited for Steel, Chemical, Fertilizers

& Process Industry where cables are exposed to chemical corrosion or in heavy

industries, where severe load fluctuations occur and for systems with frequent over

voltages. GEMSCAB LT-XLPE CABLES can also be used at higher ambient temperature

on account of their higher operating temperature. Their excellent installation properties

permit the cable to be used even under most difficult cable routing conditions and also

in cramped conditions. Single core cable due to their excellent installation propertiesare used in Power Station, Sub-Station and Industrial Plants.

LT-XLPE Cables Application


4/16

Product Range

HT XLPE CABLESCABLE TYPE CONDUCTOR GRADE MFG. RANGE SPECIFICATION RELEVANT

HT Cables Aluminium & Copper

Conductor

3.3 KV to 33 KV Single core upto 1000mm2

and Multicore upto 400 mm2

Armoured / Unarmoured

IS:7098 /

Part-2 / 1985

LT XLPE CABLES

CABLE TYPE CONDUCTOR GRADE MFG. RANGE SPECIFICATION RELEVANT

Power Cables Aluminium & Copper

Conductor

1.1 KV S/core upto 1000mm2 and

Multicore upto 630mm2IS:7098 /

Part-1 / 1988

Control Cables Copper Conductor 1.1 KV Upto 61 Core IS:7098 /

Part-1 / 1988

P.V.C.CABLES

CABLE TYPE CONDUCTOR GRADE MFG. RANGE SPECIFICATION RELEVANT


Conductor

1.1 KV Single core upto 1000mm2 and

Multicore upto 630mm2IS:1554/

Part-I / 1988


Conductor

3.3 KV Single core upto 1000mm2 Three

core upto 400 mm2IS:1554

Part-II / 1988

Control / Railway

Signalling Screened /

Unscreened Cables

Copper Conductor 1.1 KV Upto 61 core IS:1554 /

Part-I / 1988

Mining Cables Copper Conductor 3.3 KV Multicore upto 185 mm2 IS:1554/

Part-II / 1988

Mining Cables Copper Conductor 1.1 KV Multicore upto 185mm2 IS:1554/

Part-I / 1988

HR & FRLS Cables Aluminium & Copper

Conductor

1.1 KV Single core upto 1000mm2

Multicore upto 630mm2 Control

Cables upto 61 Cores

IS:1554/

Part-I / 1988

Flexible Wires & Cables Aluminium / Copper 1.1 KV Different Sizes IS:694 / 1990


5/16

Product RangeLT-XLPE CABLES

Main Features

LT-XLPE Cables have longer life as compared to conventional PVC Cables

LT-XLPE Cables have a higher conductor temperature rating i.e. 900C

LT-XLPE Cables have a higher emergency overload capacity 1200C

Max. temperature limit under short circuit conditions for LT-XLPE Cables is 2500C. Hence XLPE

Cables have higher short circuit rating

Insulation resistance of LT-XLPE Cable is excellent & superior to Identical PVC Cables

LT-XLPE Cables have high corrosion resistance in polluted atmosphere

LT-XLPE Cables have better properties of resistance to chemical and corrosive gases

LT-XLPE Cables have low installation cost because of light weight, dimensions and are far more

flexible

LT-XLPE Cables have better properties to withstand vibrations, hot impacts

Jointing of LT-XLPE Cables is easier and quicker

PRODUCT CODE

As per IS:7098-Part:1

CONSTITUENT CODE

Aluminium Conductor A

XLPE Insulation 2X

Round Steel Wire W

Flat Steel Strip Armour F

Double Round Steel Wire Armour WW

Double Flat Steel Strip Armour FF

Non Magnetic (AI) Round Wire Armour Wa

Non Magnetic (AI) Strip Armour Fa

PVC Outer Sheath Y


6/16

ConstructionConductor

Conductors are made from electrolytic grade aluminium /

copper conforming to IS:8130, and are Compact circular or

Compact shaped, Solid / Stranded circular.

Insulation

GEMSCAB XLPE cables use specially made from high grade

cross-linked polyethylene for insulation by extrusion process.

Core Identification

The cores are identified by different colours:

Single core Red, Black, Yellow, Blue or natural

Two core Red and Black

Three core Red, Yellow and Blue

Four core Red, Yellow, Blue and BlackThree and half core Red, Yellow, Blue and reduced neutral

core in Black.

Five core Red, Yellow, Blue, Black and Grey

Six core and above Two adjacent cores (counting and

direction core) in each layer Blue and

Yellow. Remaining cores Grey.

Core numbering & different colours

are also for control cables.

Laying up

In multicore cables, cores are laid-up as per the above colour

scheme, interstices are filled wherever necessary to make the

laid-up cores circular.

Inner Sheath

Laid-up cores are bedded over with thermoplastic material for

protection against mechanical and electrical damage.

Armouring

Armouring is provided over the inner sheath to guard against

mechanical damage. Armouring is generally of galvanised

steel wires or strips (in single core cables used in AC system

armouring is by non-magnetic hard drawn aluminium wires /

strips). Round steel wires are used where the diameter over the

inner sheath does not exceed 13 mm, flat steel strip armouris used above 13 mm dia. Round wire of different sizes can be

provided against specific request.

Outer Sheath

Specially formulated heat resistant black PVC compound

conforming to the requirement to type ST2 of IS:5831-1984,

extruded to form the outer sheath. GEMSCAB XLPE also offers

a specially formulated Flame Retardant Low Smoke compound

(FRLS) for outer sheath used in fire hazardous environment.

A. Max. Conductor Temperature for continuous operaton : 90C

B. Ambient Air Temperature : 40C

C. Standard Ground Temperature : 30C

D. Thermal Resistivity of Soil : 150C Cm/Watt

E. Thermal Resistivity : 350C Cm/WattF. Depth of Laying (for Cables laid direct in ground) : 75 Cm

G. Minimum Bending Radius (for Multi Core Cables) : 12D (D-Dia of Cable)

H. Max. Conductor temperature during short circuit : 250C

I. Maximum Ambient, Air temperature : 85C

J. Type of Installation

i. 3 Core Cable Installed Independently

Three cables in Trefoil

ii. Single Core Cables Touching each other

Operating Characteristic


7/16

Flow ChartFlow Chart for manufacturing process & quality control checks for XLPE Cables conforming to IS:7098 (Part-1) 1988.


8/16

1. Test on Raw Material Stage

GEMSCAB XLPE Cables are manufactured from high

quality Raw Materials which are tested in our laboratory

strictly according to our works standards. For XLPE

Cables, the Raw Material used and tests conducted are

as under.

i. Aluminium / copper wire

Conductor resistance, wire diameter tensile strength,

annealing and wrapping test.

ii. XLPE / PVC compound

Density, tensile strength, elongation at break, volume

resistivity and shrinkage test.

iii. Steel strip / wire

Dimensions, tensile strength elongation at break,

torsion, resistivity and zinc coating test.

2. Production shop preventive test i.e. process inspection

The Process control tests are carried out at every stage

of manufacture for checking the adequate manufacturing

process, and taking necessary steps to remove any

defects.

The following are the process inspections carried out byus for XLPE cables.

i. Conductor stranding

a. Dimensions

b. Surface and shape of conductor

c. Lay and direction of lay

d. D.C. resistance

e. No. of wires in each conductor

ii. Insulation

a. Dimension of coresb. Thickness of insulation

c. Surface

iii. Curing

a. Temperature

b. Pressure

c. Time

d. Hot-set-test

iv. Laying up

a. Sequence of cores

b. Direction of laying up and lay

c. Circularity of cable

d. Diameter over laid up cores

e. Application of filler in the interstices

v. Inner sheath

a. Surface

b. Concentricity

c. Thickness

d. Diameter over inner sheath

vi. Armouring

a. Lay and direction of lay of armouring wire /strips

b. No. of wires / strips

c. Uniformity of application

d. Diameter over armouring

e. Dimension of wires-strips

vii. Outer sheath

a. Thickness

b. Concentricity

c. Diameter over sheath

d. Surface

e. Embossing with requisite information on outer

sheath

3. Finished Cable Test

GEMSCAB have a well equipped air-conditioned

laboratory with state-of-the-art Testing equipment. All

routine, acceptance and type tests are conducted as per

relevant specifications and testing schemes i.e. IS:7098

Part-I amended upto date.

Quality Control System


9/16

a. Rating factors for variation in ambient air temperature

Air Temperature - C 20 25 30 35 40 45 50 55 60

Rating

Factors

Conductor

Temp. 90C1.18 1.14 1.10 1.05 1.00 0.95 0.89 0.84 0.78

Rating Factors

c. Rating factors for single core cable in trefoil circuits laid on open racks in air

ArrangementNo. of racks

No. of circuits per rack

1 2 3

1

2

3

6

1.00

1.00

1.00

1.00

0.98

0.95

0.94

0.93

0.96

0.93

0.92

0.90

d. Rating factors for grouping of multicore cables laid direct in ground, in horizontal formation

Spacing

Diagram

No. of cables in group

2 3 4 6 8 10

Cables touching

15 cm

30 cm

0.79

0.82

0.86

0.69

0.72

0.76

0.62

0.66

0.72

0.54

0.59

0.65

0.50

0.54

0.62

0.46

0.51

0.59

Rating factors for variation in ground temperature

Ground Temperature - C 15 20 25 30 35 40 45 50

Rating

Factors

Conductor

Temp. 90C1.12 1.08 1.04 1.00 0.96 0.91 0.87 0.82

b. Rating factors for multicore cables laid on open racks in air

Arrangement 1No. of racks

No. of cables per rack

1 2 3 6 9

1

2

3

6

1.00

1.00

1.00

1.00

0.98

0.95

0.94

0.93

0.96

0.93

0.92

0.90

0.93

0.90

0.89

0.87

0.92

0.89

0.88

0.86

Arrangement 2No. of racks

No. of cables per rack

1 2 3 6 9

1

2

3

6

1.00

1.00

1.00

1.00

0.84

0.80

0.78

0.76

0.80

0.76

0.74

0.72

0.75

0.71

0.70

0.68

0.73

0.69

0.68

0.66


10/16

f. Rating factors for grouping of single core cable laid direct in ground in horizontal formation

Spacing No. of cables per rack

2 3 4 6 8 10

Cables touching

15 cm

30 cm

0.78

0.81

0.85

0.68

0.71

0.76

0.61

0.65

0.71

0.53

0.57

0.64

0.48

0.53

0.60

0.45

0.50

0.58

g. Rating factors for various depths of laying

(for cables laid direct in ground)Depth of laying (mm) Upto to 25 sq. mm. above 25 sq. mm above 300 sq. mm

75

90

105

120

150

180 or more

1.0

0.99

0.98

0.97

0.96

0.95

1.0

0.98

0.97

0.97

0.94

0.93

1.0

0.97

0.96

0.95

0.92

0.91

h. Rating factors for grouping of multicore cables laid direct in ground in tier formation

Spacing

Formation of cables

Cables touching

15 cm

30 cm

0.60

0.64

0.69

0.51

0.55

0.60

0.43

0.46

0.50

e. Rating factors for grouping of multicore cables laid direct in ground in tier formation

Spacing

Formation of cables

Cables touching

15 cm

30 cm

0.60

0.64

0.69

0.51

0.55

0.60

0.43

0.46

0.50

Rating Factors


11/16

j. Ruling factor for Variation in thermal resistivity of soil, three single core cables laid direct in ground (three cables in trefoil touching)

Nominal area ofconductorsq. mm.

Rating Factors for value of Thermal Resistivity of Soil in 0C cm / watt

100 120 150 200 250 300

253550

7095120

150185240

300400500

630 to 1000

1.191.201.20

1.211.221.22

1.221.221.22

1.221.241.24

1.24

1.091.091.09

1.101.101.10

1.101.101.10

1.101.111.11

1.11

1.001.001.00

1.001.001.00

1.001.001.00

1.001.001.00

1.00

0.880.880.88

0.880.880.88

0.880.880.88

0.880.880.88

0.88

0.800.800.80

0.800.800.79

0.790.790.79

0.790.790.79

0.79

0.740.740.74

0.740.740.74

0.730.730.73

0.720.720.72

0.72

i. Ruling factor for Variation in thermal resistivity of soil (multicore cables laid direct in ground)

Nominal area ofconductorsq. mm.

Rating Factors for value of Thermal Resistivity of Soil in 0C cm / watt

100 120 150 200 250 300

253550

7095120

150185240

300400500

630

1.141.151.15

1.151.151.17

1.171.181.18

1.181.191.21

1.22

1.081.081.08

1.081.081.09

1.091.091.09

1.091.101.10

1.10

1.001.001.00

1.001.001.00

1.001.001.00

1.001.001.00

1.00

0.910.910.91

0.900.900.90

0.900.890.89

0.890.890.89

0.89

0.840.840.84

0.830.830.82

0.820.810.81

0.810.810.81

0.81

0.780.770.77

0.760.760.76

0.760.750.75

0.750.750.75

0.74

Rating Factors


12/16

SINGLE CORE AL CABLES

1.1 KV Single core XLPE insulated unarmoured and armoured cable with aluminium conductor conforming to IS:7098 (Part 1) 1988

Unarmoured cables Armoured cables

Single layer round wire armoured Single layer flat strip armoured

NominalAreaof

Conductor

(mm2)

Nominalthickness

ofXLPE

insulation(mm)

Nominalthickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(mm)

Nominalthickness

ofXLPE

insulation(mm)

Nominaldiameter

ofRoundWire(mm)

Min.thickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(Kg / Km)

Nominalthickness

offlat

strip(mm)

Min.thickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(Kg. / Km)

101625

355070

95

120150

185240

300400500

6308001000

0.70.70.9

0.91.01.1

1.1

1.21.4

1.61.7

1.82.02.2

2.42.62.8

1.81.81.8

1.81.81.8

1.8

1.82.0

2.02.0

2.02.22.2

2.22.42.6

9.510.512.0

13.014.516.0

18.0

19.522.0

24.026.5

29.533.036.0

40.046.050.5

90110150

180230300

380

460580

700880

107013701660

210026703310

1.01.01.2

1.21.31.4

1.4

1.51.7

1.92.0

2.12.42.6

2.83.13.3

1.401.401.40

1.401.401.40

1.60

1.601.60

1.601.60

1.602.002.00

2.002.002.50

1.241.241.24

1.241.241.24

1.40

1.401.40

1.401.40

1.561.561.56

1.721.881.88

11.513.014.0

15.017.019.0

22.0

24.025.0

28.030.0

33.038.041.0

45.551.056.0

180210260

310360450

590

680810

9401150

140018002130

267033204170

---

---

0.8

0.80.8

0.80.8

0.80.80.8

0.80.80.8

---

---

1.40

1.401.40

1.401.40

1.561.561.56

1.721.881.88

---

---

21.0

22.524.0

26.030.0

32.035.538.5

43.048.053.0

---

---

520

610730

8501050

129016001910

242036703030

TWIN CORE AL CABLES

1.1 KV Twin core XLPE insulated unarmoured and armoured cable with aluminium conductor conforming to IS:7098 (Part 1) 1988



NominalAreaof

Conductor

(mm2)

Nominalthickness

ofXLPE

insulation(mm)

Nominalthickness

of PVCinner

Sheath(mm)

Nominalthickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(Kg / Km)

Nominaldiameter

ofRoundWire(mm)

Min.thickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(Kg / Km)

Nominalthickness

offlat

strip(mm)

Min.thickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(Kg. / Km)

101625

35507095

120

150185240

300400500630

0.70.70.9

0.91.01.11.11.2

1.41.61.7

1.82.02.22.4

0.30.30.3

0.30.30.30.40.4

0.40.50.5

0.60.60.70.7

1.81.82.0

2.02.02.02.22.2

2.22.42.6

2.83.03.43.6

16.517.019.0

20.022.025.028.031.0

33.037.041.0

44.048.054.062.0

270290340

410510670860

1050

126017002120

2560316039204910

1.401.401.60

1.601.601.602.002.00

2.002.002.50

2.502.503.153.15

1.241.401.40

1.401.401.561.561.56

1.721.882.04

2.202.362.682.84

18.018.521.0

23.025.028.031.034.0

37.040.045.0

49.052.060.066.0

610720740

9001060132017602040

236029203830

4450527069108230

--

0.8

0.80.80.80.80.8

0.80.80.8

0.80.80.80.8

--

1.40

1.401.401.401.561.56

1.721.721.88

2.042.362.522.68

--

20.0

21.023.026.029.031.0

34.037.042.0

45.050.055.063.0

--

600

700840104012801520

180022802760

3280401048205920

Dimensions & Weights


13/16

THREE & HALF CORE AL CABLES1.1 KV Three & A Half Core XLPE Insulated Unarmoured and Armoured cable with Aluminium Conductor Conforming to IS:7098 (Part 1) 1988



NominalAreaof

Conductor

(mm2)

NominalArea ofreducedneutral

conductor(mm2)

Nominalthickness

ofXLPE

insulation(mm)

Min.thickness

of PVCinner

Sheath(mm)

Nominalthickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(Kg / Km)

Nominaldiameter

ofRoundWire(mm)

Min.thickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(Kg / Km)

Nominalthickness

offlat

strip(mm)

Min.thickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(Kg / Km)

2535

5070

95120

150185

240300

400500630

1616

2535

5070

7095

120150

185240300

0.90.9

1.01.1

1.11.2

1.41.6

1.71.8

2.02.22.4

0.30.3

0.30.4

0.40.4

0.50.5

0.60.6

0.70.70.7

2.02.0

2.02.2

2.22.2

2.42.6

2.83.0

3.43.64.0

22.023.0

27.031.0

34.037.0

42.046.0

51.056.0

65.073.082.0

510610

7901060

13601680

20202510

32103940

501062107900

1.601.60

1.602.00

2.002.00

2.002.50

2.502.50

3.153.154.00

1.401.40

1.561.56

1.561.72

1.882.04

2.202.36

2.682.843.00

25.026.0

30.035.0

38.041.0

45.050.0

55.059.0

70.079.088.0

10601210

14902070

24702960

34204470

54206390

85001003013330

0.80.8

0.80.8

0.80.8

0.80.8

0.80.8

0.80.80.8

1.401.40

1.401.56

1.561.72

1.721.88

2.042.20

2.522.683.00

23.024.0

28.032.0

35.038.0

42.047.0

52.056.0

65.074.082.0

830970

12001540

19002310

26803260

40604860

606073709210

TWIN CORE AL CABLES

1.1 KV Three core XLPE insulated unarmoured and armoured cable with aluminium conductor conforming to IS:7098 (Part 1) 1988



NominalAreaof

Conductor

(mm2)

Nominalthickness

ofXLPE

insulation(mm)

Nominalthickness

of PVCinner

Sheath(mm)

Nominalthickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(Kg / Km)

Nominaldiameter

ofRoundWire(mm)

Min.thickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(Kg / Km)

Nominalthickness

offlat

strip(mm)

Min.thickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(Kg. / Km)

10162535

507095

120

150185240

300400500630

0.70.70.90.9

1.01.11.11.2

1.41.61.7

1.82.02.22.4

0.30.30.30.3

0.30.40.40.4

0.50.50.6

0.60.70.70.7

1.81.82.02.0

2.02.22.22.2

2.42.62.8

3.03.23.63.8

18.018.021.022.0

26.029.033.035.0

39.043.049.0

53.059.066.073.0

250310440540

680920

11701430

176021802790

3420431053706810

1.401.601.601.60

1.602.002.002.00

2.002.502.50

2.503.153.154.00

1.241.401.401.40

1.561.561.561.72

1.882.042.20

2.362.682.843.00

20.020.523.025.0

28.032.035.039.0

43.048.053.0

57.065.072.081.0

6308109401090

1320184021802580

303039604790

563075108860

11760

-0.80.80.8

0.80.80.80.8

0.80.80.8

0.80.80.80.8

-1.241.401.40

1.401.561.561.56

1.721.882.04

2.202.522.682.84

-19.021.023.0

26.029.033.036.0

40.044.050.0

53.060.066.074.0

-590730870

1050136016601970

236028503550

4250530064107980



14/16

FOUR CORE AL CABLES

1.1 KV Four core XLPE insulated unarmoured and armoured cable with aluminium conductor conforming to IS:7098 (Part 1) 1988



NominalAreaof

Conductor

(mm2)

Nominalthickness

ofXLPE

insulation(mm)

Minimumthickness

of PVCinner

Sheath(mm)

Nominalthickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(Kg / Km)

Nominaldiameter

ofRoundWire(mm)

Min.thickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(Kg / Km)

Nominalthickness

offlat

strip(mm)

Min.thickness

of PVCouter

Sheath(mm)

Approx.overall

diameterof

Cable(mm)

Approx.weight

ofCable

(Kg. / Km)

10162535

507095

120

150185240

300400500630

0.70.70.90.9

1.01.11.11.2

1.41.61.7

1.82.02.22.4

0.30.30.30.3

0.30.40.40.5

0.50.50.6

0.70.70.70.7

1.81.82.02.0

2.02.22.22.4

2.62.83.0

3.23.63.84.0

19.020.024.026.0

29.034.037.041.0

43.048.056.0

63.070.079.088.0

300370540680

860117015001870

230028403650

4490569070208910

1.401.601.601.60

1.602.002.002.00

2.502.502.50

3.153.154.004.00

1.401.401.401.40

1.561.561.721.88

2.042.202.36

2.522.843.003.00

20.022.526.028.0

32.037.040.044.0

47.052.060.0

68.076.086.094.0

72085011101310

1590222027003210

415049105970

77509300

1215014600

-0.80.80.8

0.80.80.80.8

0.80.80.8

0.80.80.80.8

-1.401.401.40

1.561.561.561.72

1.882.042.20

2.362.682.843.00

-20.024.027.0

30.034.037.041.0

44.049.056.0

63.071.079.088.0

-6708801050

1320167020702330

300036204530

547067808230

10280

Aluminium Plain Copper

Nominal Area of conductor Max. D.C. Resistance at200C

Approx A.C. Resistance atoperating Temp. 900C

Max. D.C. Resistance at200C

Approx A.C. Resistance atoperating Temp. 900C

(Sq. mm) Ohm / km Ohm / km Ohm / km Ohm / km

1.52.546

10162535

50

7095120

150185240300

400500630

8001000

--

7.414.61

3.081.911.200.868

0.641

0.4430.3200.253

0.2060.1640.1250.100

0.07780.06050.0469

0.03670.0291

--

9.505.91

3.952.451.5391.113

0.822

0.5680.4100.325

0.2650.2120.1620.130

0.1020.0810.064

0.05260.0438

12.17.414.613.08

1.831.150.7270.524

0.387

0.2680.1930.153

0.1240.09910.07540.0601

0.04700.03660.0283

0.02210.0176

15.59.505.913.95

2.351.470.9320.672

0.496

0.3430.2470.196

0.1590.1280.09770.0781

0.06160.04900.0386

0.03170.0265


Conductor Resistance


15/16

Current Rating for 1.1 KV XLPE Insulated - Aluminium Conductor Cables - Armoured and Unarmoured

Cables in Ground Cables in Air

NominalArea ofCross-

Section

Single Core CablesTwo CoreCables

Three, Threeand a half

& Four Core

Cables

Single Core CablesTwo CoreCables


& Four Core

Cables

Two

Cables

Three

Cables

Two

Cables

Three

CablesAC DC AC AC AC AC DC AC AC AC

Sq. mm (Amps) (Amps) (Amps) (Amps) (Amps) (Amps) (Amps) (Amps) (Amps) (Amps)

10162535

507095

120

150185240

300400500

6308001000

6990

116139

162199241273

305347407

458518592

666750833

6990

116139

162199241273

305347407

463528602

694796907

597697

116

139171204231

259292342

384440500

565629704

7191

120143

167204245278

315356407

463528592

676--

577397

116

134167199227

255287333

375426481

537--

6082

108136

163208258303

348407488

569669786

92210671220

6082

108136

163208258303

348407488

569678805

95811301329

537399

122

149190235276

321371447

515606705

8239491076

6788

117145

176221271316

362420497

578678786

913--

537095

117

140176221258

294339402

461542624

723--

Current Rating for 1.1 KV XLPE Insulated - Copper Conductor Cables - Armoured and Unarmoured

Cables in Ground Cables in Air

NominalArea of

Cross-Section

Single Core CablesTwo Core

Cables


& Four CoreCables

Single Core CablesTwo Core

Cables


& Four CoreCables

TwoCables ThreeCables TwoCables ThreeCables

AC DC AC AC AC AC DC AC AC AC

Sq. mm (Amps) (Amps) (Amps) (Amps) (Amps) (Amps) (Amps) (Amps) (Amps) (Amps)

1.52.54.06.0

10162535

50

7095

120

150185240300

4005006308001000

31415468

89116148181

213

259310352

393449518583

657731823907981

31415468

89116148181

213

259310352

397449527593

68577889710271176

27364657

7697

125153

181

217264296

333375434490

556620695758834

33435671

92116152180

218

264314357

403453518583

658730

---

25344455

7397

125148

175

213254292

325366421472

528583

---

25334455

80104139172

213

271335389

447524623722

850976113012841437

25334455

80104139172

213

271335393

452524632741

8771031122914641709

22294051

7195

126158

194

249307357

411479569659

769877101311481275

29395164

88113153186

226

284348402

461533633732

841967

---

22304051

7090

112148

181

230284330

375434515588

677767

---

Current Rating


16/16

GEMSCAB INDUSTRIES LTD.

WORKS:

SP-1192/L, Phase-IVRIICO Industrial Area, Bhiwadi

Distt. ALWAR (Rajasthan)-301 019Ph: (01493) 222752, 224815

MARKETING OFFICE:

40, Rajasthan Udyog Nagar,G.T. Karnal Road, Delhi-110 033

Ph: (011) 27694648, 27691697, 27695194Fax: (011) 27694651

E-mail: [email protected]

BRANCH OFFICES:

Representatives:Bangalore, Hyderabad, Chandigarh, Kanpur, Tatanagar, Jodhpur, Jaipur

Website: www.gemscab.com

Mumbai:

903, Tulsiani Chambers

212, Nariman Point,Mumbai-400 021Ph: (022) 22834665, 22834307

Mobile: 0 9833454408Fax: (022) 22874260

E-mail: [email protected]

Chennai:

51, Moore Street,

Facing Erabalu Chetty Street,Madras-600 001Ph: 044-25220907

Mobile: 0 9841247486

Kolkata:

29, Ganesh Chandra Avenue,

Kolkata-700 013Ph: (033) 22116767, 22118042Mobile: 0 9830687515Fax: (033) 22116885

gemscab lt xlpe

Documents