18/30 (36) kv - single core, xlpe insulated, pvc sheathed, … · 2011. 1. 14. · sheath conductor...

DIMENSIONAL CHARACTERISTICS

18/30 (36) KV - SINGLE CORE, XLPE INSULATED, PVC SHEATHED,SCREENED, UNARMOURED CABLES.

Type M6N, M6AConforming to IEC 60502-2

Radial Thickness of Lengthon

drumCable

Nominal Diameters Approximative net weight

InnerSheath Conductor Insulation Overall Conductor Cable Conductor

mm2 mm mmmm mm mm mm Kg/Km Kg/Km Kg/Km Kg/Km m

Current carrying capacity **

mm2

Copper cable Aluminium cableOuterSheath

Nominalcross

section

DC Resistance at20˚C* Underground

Cable Cables in ductTrefoil

formation Alu

Cables in airNominal

crosssection

Insulation

Nominalinductance

Ω/Km Ω/Km mH/Km mH/Km µF/Km Amp Amp Amp Amp Amp Amp

Copper Alu Flatformation

Nominalcapacity

Copper AluCopper AluCopper

ELECTRICAL CHARACTERISTICS

507095

120150185240300400500630800

1000

-------------

8.08.08.08.08.08.08.08.08.08.08.08.08.0

2.02.02.12.12.22.22.32.42.52.62.72.82.9

8.310.011.813.314.816.5518.7321.324.127.331.037.141.6

26.328.029.831.332.834.5536.7339.342.145.349.455.460.0

421608843

1065130716402098264634604361563172039080

33353738404244484952566267

139016601990228026103030361043505150625077009600

11700

128185256324398499638804

10511325171021882758

1090126014001540169018902150251027603210379045805400

500500500500500500500500500500500500500

507095

120150185240300400500630800

1000

0.3870.2680.1930.1530.124

0.09910.07540.06010.04700.03660.02830.02210.0176

0.6410.4430.3200.2530.2060.1640.1250.1000.07780.06050.04690.03670.0291

0.4640.4390.4170.3980.3870.3750.3590.3510.3300.3170.3070.2910.284

0.6490.6230.6010.5830.5720.5590.5440.5350.5150.5020.4910.4760.468

180220260300335380440500570640740830935

230280335385430490560640720810910

10151110

245305375425485560660750870

1000115012901465

190235290330375430510590680790930

10601230

0.1360.1510.1660.1790.1910.2050.2230.2440.2670.2930.3260.3750.411

205255310355410465555640740855

101011551340

160200245280320365435500580670790900

1090

* At different operating T(˚C) : R = R20˚C 1+ α (T˚C - 20)α : Temperature coefficient at 20˚C = 0.00393 for copper & 0.00403 for aluminium

** Laying conditions : - Underground : Temperature of the soil 20˚C - Thermal resistivity 100˚C cm/w- In air : Ambient temperature 30˚C

*** Greater sizes are also available

37


18/30 (36) KV - THREE CORE, XLPE INSULATED, PVC SHEATHED,SCREENED, UNARMOURED CABLES.


507095

120150185240300

Radial Thickness of

--------

Lengthon

drumCable

8.08.08.08.08.08.08.08.0

3.13.23.33.43.53.63.84.0

8.310.011.813.314.816.5518.7321.3

26.328.029.831.332.834.5536.7339.3

12741841255232273960496963578017

69737780848893

100

47305600670076508750

101501205014400

387559776980

1204151019312435

38404320490054005950630076008850

250250250250250200200200





Nominalcross

section Insulation

507095

120150185240300

0.3870.2680.1930.1530.124

0.09910.07540.0601


mm2



Cable Cables in duct

Alu


crosssection

Nominalinductance

Ω/Km

0.6410.4430.3200.2530.2060.1640.1250.100

Ω/Km

0.4350.4090.3880.3730.3610.3480.3350.324

mH/Km

0.1360.1510.1660.1790.1910.2050.2230.244

175210255290320360420490

225270330370415465540620

230280345395450510600685

µF/Km Amp Amp Amp

175220265305345395470535

Amp

195235285330375430510585

Amp

150185225260295335400455

Amp

Copper Alu

Nominalcapacity




38


18/30 (36) KV - THREE CORE, XLPE INSULATED, PVC SHEATHED,SCREENED, DOUBLE STEEL TAPE ARMOURED CABLES.

Type M6NB, M6ABConforming to IEC 60502-2

507095

120150185240300

Radial Thickness of

1.81.81.92.02.02.12.22.3

Lengthon

drumCable

8.08.08.08.08.08.08.08.0

3.33.43.53.73.83.94.14.2

8.310.011.813.314.816.5518.7321.3

26.328.029.831.332.834.5536.7339.3

12741841255232273960496963578017

757983889296

101108

650074508650

1065011800134001555018200

387559776980

1204151019312435

500062006900840090509950

1110012650

250250250250250200200200





Nominalcross

section Insulation

507095

120150185240300

0.3870.2680.1930.1530.124

0.09910.07540.0601


mm2




Alu


crosssection

Nominalinductance

Ω/Km

0.6410.4430.3200.2530.2060.1640.1250.100

Ω/Km

0.4790.4500.4270.4110.3970.3830.3680.357

mH/Km

0.1360.1510.1660.1790.1910.2050.2230.244

175210255290320360420490

225270330370415465540620

230280345395450510600685

µF/Km Amp Amp Amp

175220265305345395470535

Amp

195235285330375430510585

Amp

150185225260295335400455

Amp

Copper Alu

Nominalcapacity




39

1. SCOPE

This specification covers three core overheadinsulated cables, rated 12/20 (24) KVgenerally conforming to IEC 60502-2.

2. CONSTRUCTION

2.1 Conductor

Aluminium, circular stranded and compactedconforming to IEC 60228 - Class 2.

2.2 Conductor Screening

Extruded thermosetting semi-conductor layer,conforming to IEC 60502-2.

2.3 Insulation

XLPE thermosetting material conforming toIEC 60502-2.

6.3 12/20 (24) KV THREE CORE XLPE INSULATEDBUNDLED OVERHEAD CONDUCTORS (TORSADE)OUR TYPES: M5A2T - M5A3T - M5A4T

2.4 Insulation Screening

2.4.1 Semi conducting screen:Extruded thermosetting semi-conducting layer, applied under a swellablesemi-conducting tape for watertightness.

2.4.1 Metal screen:Plain soft copper wire and / or copper tape applied helically, or aluminiumtape applied longitudinally bonded to the outer PE sheath.

2.5 Outer sheath

Extruded black PE sheath, or PVC upon specific customer requirements,conforming to IEC 60502-2.

2.7 Steel Messenger

50 or 70 mm2 steel stranded wires, covered with black PE, or PVC upon specificcustomer requirements.

3. TESTS

All tests required by the IEC 60502-2, either on raw materials or on finished products.

40

12/20 (24) KV - THREE CORE, XLPE INSULATED,BUNDLED OVERHEAD CONDUCTORS (TORSADE)

Type M5A4TConforming to IEC 60502-2

507095

120150185240


mm2

DC Resistance at20˚C* Cables in air

Nominalinductance

0.6410.4430.3200.2530.2060.1640.125

Ω/Km

0.4360.4050.3850.3760.3630.3520.337

mH/Km

0.1750.2040.2270.2400.2600.2810.314

176220269310352405480

µF/Km AmpAlu

Nominalcapacity


Lengthon

drum

8.110.312.013.014.616.218.8

50505050505050

374541743954

112414601863

28303233353740

2820320035503890447049605650

500500500500500250250

Nominal Diameters

Conductor Conductor Cable

mm2 mmmm mm Kg/Km Kg/Km m

OuterSheath

Nominalcross

section




SuspensionStrand

OverJacket

Overbunched

Conductors

mm

67727578818590

Approximativenet weight

mm

1.81.91.92.02.02.12.2

5.55.55.55.55.55.55.5

mm

Insulation


Nominalcross

section

Radial Thickness of

3x50 / 163x70 / 163x95 / 163x120 / 163x150 / 253x185 / 253x240 / 25

41

x S U x ∆u U

2 L Ix S

7.1 Formulae

U = RI

2Lx S

P(w) = U I

P(w) = U I cos ϕ

P (w)

UP(VA) P (W)

U cos ϕU

P(VA) P (W)

U 3 cos ϕU 3

W = RI2 t

P(w) = √3 U I cos ϕ

Ohms law

Joules law

Resistance of a line(feed and return)

DC Power

Single phase Power

Three phase Power

AC Single core current

DC Current

AC Three phase current

Efficiency P outputP input

Voltage drop

Three phasesystem

Voltage drop Size ∆u (v) mm2

If current known

2 L Ix ∆u

If power known2 L P(w) 2L P(w)x S U x ∆u U

If current known

1.73 L I cos ϕ 1.73 L I cos ϕx S x ∆u

If power known

L P(w) L P(w)

Nature of the current

Single phaseAC/DC systems

U

IRW

tL1x11S1P1Cosϕe∆u

=11

===1==1=11=1=1===

Rated Voltage in V(volts)(between phase in threephase system).

Current in A (Amperes).

Resistance in (ohms).

Energy in Ws (Wattsecond).

Time in s (second)

Length of cable in m(meter).

Conductivity (56 forcopper and 34 forAluminium).

Cross sectional area inmm2.

Power in W (Watt) orVA (Volt Ampere).

Power factor.

Efficiency.

Voltage drop sending toreceiving end of line inV(Volts).

R =

I =

I = =

I = =

e =

∆u =

∆u =

∆u =

∆u =

S =

S =

S =

S =

7 TECHNICAL INFORMATION

42

7.2 Conversion factors and units

The SI unit for power is the W1W = 0.102 Kgm / s = 1.359 x 10-3 HP = 3.412 BTU / h1 Kgm / s = 9.81 W = 0.0133 HP = 33.47 BTU / h1HP = 735.5 W = 75 Kgm / s = 2510 Btu /h1 BTu /h = 0.2931 W = 0.0298 Kgm / s = 0.393 x 10-3 HP

w = watt, Kgm / s = Kilogramme meter per second,HP = metric Horse power, BTU /h = British thermal unit per hour

The SI unit for force is the N1N = 0.10197 Kgf = 0.2248 Lbf1Kgf = 9.80665 N = 2.2046 Lbf1Lbf = 4.4482 N = 0.4536 Kgf

N = Newton, Kgf = Kilogram force, Lbf = pound force

The SI unit for length is the m1m = 102 cm = 103 mm = 10-3 Km1m = 39.37 in = 3.28 ft = 1.0936 Yd = 0.6214 x 10-3 miles1 in = 0.0254 m = 0.0833 ft = 0.0277 Yd = 0.0158 x 10-3 miles1 ft = 0.3048 m = 12 in = 0.333 Yd = 0.189 x 10-3 miles1 Yd = 0.9144 m = 36 in = 3 ft = 0.568 x 10-3 miles1 mile = 1609 m = 63360 in = 5280 ft = 1760 Yd

m = meters, in = inches, ft = feet, Yd = Yards

The SI unit for volume is the m3

1m3 = 10 dm3 = 106 cm3 = 109 mm3

1m3 = 1000 L = 35.315 ft3 = 219.97 I.gal = 264.17 U.S. gal1L = 0.001 m3 = 0.0353 ft3 = 0.21997 I.gal = 0.26417 U.S. gal1 ft3 = 28.317x10-3 m3 = 28.317 L = 6.2288 I.gal = 7.479 U.S. gal1 I.gal = 4.546 x 10-3 m3 = 4.546 L = 0.1605 ft3 = 1.2009 U.S. gal1 U.S. gal = 3.7854 x 10-3 m3 = 3.785 L = 0.1366 ft3 = 0.8327 I. gal

l = liters, ft = feet, I.gal = Imperial gallon, U.S.gal = United States gallon

Length :

Weight :

Volume :

Force :

Power :

The SI unit for weight is the Kg1 Kg = 103 g = 10-3 T (metric ton)1 Kg = 2.20462 lb = 35.27 oz1 oz = 28.349 x 10-3 Kg = 0.0625 lb

Kg = Kilogrammes, lb = pounds, oz = ounces

43

The SI unit for pressure is the Pa = 1 N/m2

1 N /m2 = 10-5 Kgf / cm2 = 10-5 bar1Kgf / cm2 = 105 N / m2 = 1 bar

Pa = Pascal, N/m2 = Newton per square meterKgf / cm2 = Kilogramme force per square centimeter

Pressure :

Work : The SI unit for work is the J1J = 1Ws (Wattsecond) = 1Nm (Newton meter)1J = 0.2778 x 10-6 Kwh = 0.239 x 10-3 Kcal1Kwh = 3.6 x 106 J = 859.8 Kcal1Kcal = 4186.8 J = 1.163 x 10-3 Kwh

J = Joules, Kwh = Kilowatt hour, Kcal = Kilocalories

Temperature : The SI unit for Temperature is the Kelvin (K)Temperature in o C = Temperature in o K - 273 = 5/9 (Temperature in o F - 32)

Temperature in o K = Temperature in o C + 273o C = degree celcius, o K = degree Kelvin, o F = degree Fahrenheit

44

When several cables or ducts are laid underground with less than one meter spacing thecurrent rating values should be multiplied by the following correction factors :

Number ofcircuits

Touchingcables

One diameterspaced cables

a = D

2

3

4

5

6

0.76

0.64

0.57

0.52

0.49

0.79

0.67

0.61

0.56

0.53

0.84

0.74

0.69

0.65

0.60

0.88

0.79

0.75

0.71

0.69

0.92

0.85

0.82

0.80

0.78

a = 0.25m a = 0.5m a = 1.0m

4.3. 2. CABLES LAID “ IN AIR ” :

The stated values are for cables or ducts laid “ in air ” with an ambient temperature of30˚C and out of direct sunlight, spaced so that the temperature rise of individual cableshas no influence on others. The spacing between adjacent cables is at least twice thecable or duct diameter.When the ambient temperature is different ( not 30˚C ) the current rating values shouldbe multiplied by the following correction factors :

Ambienttemperature (˚C)

05

101520253035404550556065707580859095

100

Carrying core temperature (˚C)

1.361.311.251.201.131.0710.930.850.760.650.530.38

1.321.271.221.171.121.0610.940.870.790.710.610.500.35

1.291.251.201.151.111.0510.940.880.820.750.670.580.470.33

1.261.221.181.141.101.0510.950.890.840.770.710.630.550.450.32

1.241.211.171.131.091.0410.950.900.850.800.740.670.600.520.430.30

1.221.191.151.121.081.0410.960.910.870.820.760.710.650.580.500.410.29

1.211.181.141.111.071.0410.960.920.880.830.780.730.680.620.550.480.390.28

1.201.161.131.101.071.0410.960.930.890.850.800.760.710.650.600.530.460.380.27

1.181.151.131.101.061.0310.970.930.890.860.820.770.730.680.630.580.520.450.370.26

65 70 75 80 85 90 95 100 105

Correction factor of proximity effect for underground cables

D = overall outer sheath diameter a = Space between cables

Correction factor for different ambient temperature

Single or multicore cables

11

When several cables or ducts are grouped, the current ratings values should be correctedas follows :

a D

H

SINGLE CORE CABLES

Methodof laying

Touching


a = D

Number of layers123123

Number of ducts 2

0.890.850.840.980.930.92

3

0.870.810.790.960.890.86

3 cables inhorizontal layer

3 cables intriangular formation

MULTICORE CABLES

Methodof laying

Touching


a = D

Number of layers123123

Number of ducts 1

1.01.01.01.01.01.0

3

0.820.800.790.980.860.95

Note : the space H between layers must not be less than 30cm

4

0.780.760.750.950.920.91

6

0.760.730.710.910.870.85

0.970.940.931.00.970.96

1

2

0.880.870.861.00.980.98

12

4.4 Inductance

The Inductance L depends on the geometrical characteristics of the cable as well as thedisposition of conductors

for unarmoured cables :

0.1556537464439

4.6 Conductors short - circuit current :

Current densities given in the table below are in (A / mm2 ), for a maximum condutortemperature of 250˚C at the end of the short - circuit.

Temperature of conductorbefore overload

T ( ˚C )

20307090

overload time in secs0.5249241207196

1176170147139

578766562

0.1366354325287

0.5164159145128

282797264

551504640

Copper AluminiumConductor metal

Current density ( A / mm2 )

For an overload duration (t) different than those figured in the above table, thecorrespondant current density is given by the following formula :

Current density for a duration (t) = Current density for 1 sec

√ t

L = 0.05 + 0.46 Log10 ( mH / Km )Dmr

Single phase system Three phase systemflat formation

Three phase systemtrefoil formation

Dm = D

D

Dm = 1,26 D

D

D

DD

Dm = D

For armoured Cables increase the inductance of about 10%

4.5 Capacitance

C = 2.318 Ln

d = Diameter of conductor ( including the eventual semi-conductive layer )D = Diameter of insulated Conductor

Dd

11611210391

112412010398

2

where : r = Conductor RadiusD = Distance between Conductors

D

13

Armoured single core

Unarmoured single core

Armoured multi core

Unarmoured multi core

Cable on drum

4.7 Screen short-circuit current

Following short-circuit current in Ampere, are approximative, calculated for coppertape screen of 0.1mm thickness applied helically with about 10% overlapping.

0.5 second

Specified Voltage, KVNominal Conductor

cross section1 second 2 seconds

in mm2 8.7/15(18) 12/20(24) 18/30(36) 8.7/15(18) 12/20(24) 18/30(36) 8.7/15(18) 12/20(24) 18/30(36)

15001550165017501950210022502350255029503150

18001800180020002150230024002550290031503500

11501200125013001500160017001800195022502450

13501350135015001650175018501950225024502750

19502000225023502400270029003050

162535507095

120150185240300

25502600295030503200350037503950

10501050105012001300135014501500180019502200

15001550180018501920215023002450

90092097010001150125013501400150018001900

4.8 Minimum Bending Radius :

Listed values represent the permanent bending radius the cables withstand in fixedinstallation and on dispatching reels. Other constraints may impose greater bendingradius.

Cable duringinstallation

Installed Cable

16 D

20 D

16 D

16 D

8 D

10 D

7 D

8 D

D = Overall diameter in mm

8 D

10 D

7 D

8 D

14

The type designation is a combination of abbreviations indicating the type, voltage andthe main constructional elements of the cable as follows :

- The first symbol is the letter M for medium voltage cables- The second symbol is a number (n) from 1 to 6 indicating the voltage as follows :

123456

forforforforforfor

1.8/3 (3.6)3.6/6 (7.2)6/10 (12)

8.7/15 (18)12/20 (24)18/30 (36)

KVKVKVKVKVKV

- The third symbol is a letter indicating the type of the metal as follows :N for copper conductorA for aluminium conductor

- The fourth symbol is a number indicating the type of the screen as follows :1 for semi-conductor tape plus copper tape2 for semi-conductor tape plus copper wire3 for extruded semi-conductor plus copper tape4 for extruded semi-conductor plus copper wire

Note : For cables up to and including 3.6 KV where the screen is not required, thisnumber is not existing.

- The fifth, sixth and seventh abbreviations are eventual letters indicating the following :

LBGRFAW

For lead sheathFor steel tape armouringFor galvanized steel tape armouringFor galvanized roumd steel wire armouringFor flat steel wire armouringFor aluminium tape armouringFor round aluminium wire armouring

5 OUR TYPE AND CODE DESIGNATION

Example : M3A1B - Medium voltage cable, 6/10 (12) KV, aluminium conductor,XLPE insulation, semi-conductor tape plus copper tapescreen, steel tape armour.

M5N3LR - Medium voltage cable, 12/20 (24) KV, copper conductor,XLPE insulation, extruded semi-conductor plus coppertape screen, lead sheath, galvanized round steel wirearmour.

15

6 SINGLE CORE AND THREE CORE MEDIUM VOLTAGE CABLES

6.1 1.8/3 (3.6) KV CABLES XLPE INSULATED, PVC OR PE SHEATHED

1. SCOPE

This specification covers single core cables and three core armoured orunarmoured cables, rated at 1.8/3 (3.6) KV conforming to IEC 60502-1Specifications.

2. CONSTRUCTION

2.1 Conductor

Plain, annealed electrolytic copper or Aluminium conductors, circular stranded,conforming to the applicable requirements of IEC 60228.

2.2 Insulation

XLPE thermosetting material conforming to the applicable requirements of IEC60502-1 ( flame retardant XLPE for specific applications ).

2.3 Assembly

Insulated conductors are laid up, filled where necessary with non hygroscopicmaterial, and covered with an extruded thickness of thermoplastic material, orbinding tape.

2.4 Armour

Two layers of steel tape, (non magnetic tape for 1 core cables) conforming to theapplicable requirements of IEC 60502-1 recommendations.

Flat or round wires armouring can be provided upon specific customerrequirements.

2.5 Sheath

PVC or PE (halogen free or fire retardant compound on special request)thermoplastic material, conforming to the applicable requirements of IE 60502-1.

3. TESTS

All tests required by the IEC 60502-1 either on Raw material or on finishedproducts.

According to international standard IEC 60502 - 1

16

SINGLE CORE CABLES1.8 / 3 (3.6) KV

1 Stranded copper oraluminium conductor

2 XLPE Insulation

3 Bedding

4 PVC Sheath

5 Double aluminium tape armour

6

7 Round or flat aluminiumwire armour

Flat aluminium stripsarmour with onealuminium tape appliedin helical form

M1NRM1AR

M1NFGM1AFG

M1NBM1AB

M1NM1A

124

1234 5

1234 6

1234 7

17

THREE CORE CABLES1.8 / 3 (3.6) KV


2 XLPE Insulation

3 Bedding

4 PVC Sheath

5 Double steel tape armour

6

7 Galvanized roundsteel wire armour

Galvanized flat steelstrip armour with flatsteel tape applied inhelical form

M1NRM1AR

M1NFGM1AFG

M1NBM1AB

M1NM1A

1234

1234 5

1234 6

1234 7

Note : Different constructions remain possible on special request.

18


1.8/3 (3.6) KV - SINGLE CORE, XLPE INSULATED, PVC SHEATHEDUNARMOURED CABLES

Type M1N, M1A - Conforming to IEC 60502-1

10162535507095

120150185240300400500630800

1000

Radial Thickness of

-----------------

Lengthon

drumCable

2.02.02.02.02.02.02.02.02.02.02.02.02.02.22.42.62.8

1.41.41.41.41.41.51.51.61.61.71.81.81.92.02.22.32.4

3.824.836.027.158.3

10.011.813.314.816.5518.7321.324.127.331.037.141.6

7.828.83

10.0211.1512.314.015.817.318.820.5522.7325.328.131.735.842.347.2

90142224311421608843

1065130716402098264634604361563172039080

1112131516181921232527293336414753

28436895

128185256324398499638804

10511325171021882758

130160200240290375475570665805990

120015001870237030203740

100010001000500500500500500500500500500500500500500500





mm2 Ω/Km Amp Amp Amp


Alu

Ω/Km


Nominalcross

section

DC Resistance at 20˚C*

Underground Cable Cables in duct

Copper Alu Copper Alu Copper AluCopper

Cables in air

Nominalcross

section

Amp Amp Amp

Insulation

190255355455580800

1060132015801950245030403910491063008050

10050

10162535507095

120150185240300400500630800

1000

1.831.150.7270.5240.3870.2680.1930.1530.1240.09910.07540.06010.04700.03660.02830.02210.0176

3.081.911.200.8680.6410.4430.3200.2530.2060.1640.1250.1000.07780.06050.04690.03670.0291

90120160195230285340385430485560630720800910

10001085

7595

125150180220260300335380440500570640740830920

95125165200235295360420475550650740860990

114013001450

7595

125150185230280325370425510580680790920

10701220

80105140165200250305350395465550635740855

100011651340

7085

105125155195240275310365430495580670780910

1090* At different operating T(˚C) : R = R20˚C 1+ α (T˚C - 20)

α : Temperature coefficient at 20˚C = 0.00393 for copper & 0.00403 for aluminium



19


1.8/3 (3.6) KV - THREE CORE, XLPE INSULATED, PVC SHEATHEDUNARMOURED CABLES


10162535507095

120150185240300

Radial Thickness of

------------

Lengthon

drumCable

2.02.02.02.02.02.02.02.02.02.02.02.0

1.81.81.81.81.92.02.22.32.42.52.72.8

3.824.836.027.158.3

10.011.813.314.816.5518.7321.3

7.828.83

10.0211.1512.314.015.817.318.820.5522.7325.3

270429679941

12741841255232273960496963578017

222426293135404346505661

585795

1110142018302500336041304990615077509630

82130206286387559776980

1204151019312435

400500635760940

1220158018802230268033204050

500500500500500500500250250250250250




10162535507095

120150185240300

3.081.911.200.8680.6410.4430.3200.2530.2060.1640.1250.100

90120155190225275330370420470540620

7595

120150175215255290325365425485

90120155190225280340385445510590675

75100130160190235285325375430505580

7090

115145175215260300345395465530

6580

100125145185225255295335395450




Alu

Ω/Km


Nominalcross

section




Cables in air

Nominalcross

section

Amp Amp Amp

Insulation

1.831.150.7270.5240.3870.2680.1930.1530.1240.09910.07540.0601



20


1.8/3 (3.6) KV - THREE CORE, XLPE INSULATED, PVC SHEATHED,DOUBLE STEEL TAPE ARMOURED CABLES


10162535507095

120150185240300

Radial Thickness of

1.01.01.01.11.11.21.31.31.41.51.61.6

Lengthon

drumCable

2.02.02.02.02.02.02.02.02.02.02.02.0

1.81.81.91.92.02.22.32.42.52.72.83.0

3.824.836.027.158.3

10.011.813.314.816.5518.7321.3

7.828.83

10.0211.1512.314.015.817.318.820.5522.7325.3

270429679941

12741841255232273960496963578017

242729323540444852566167

8251060141017702200331042605100605073509100

11150

82130206286387559776980

1204151019312435

635760940

111013202030248028603310391046605550

500500500500500500500250250250250250




10162535507095

120150185240300

3.081.911.200.8680.6410.4430.3200.2530.2060.1640.1250.100

1.831.150.7270.5240.3870.2680.1930.1530.1240.09910.07540.0601

90120155190225275330370420470540620

7595

120150175215255290325365425485

90120155190225280340385445510590675

75100130160190235285325375430505580

7090

115145175215260300345395465530

6580

100125145185225255295335395450




Alu

Ω/Km


Nominalcross

section




Cables in air

Nominalcross

section

Amp Amp Amp

Insulation



21

6.2 XLPE INSULATED, SCREENED, PVC OR PE SHEATHED CABLES FORVOLTAGES UP TO AND INCLUDING 36 KV.

1. SCOPE

This specification covers single core cables and three core cables, armoured orunarmoured, rated at voltages up to and including 36 KV conforming to IEC60502-2.

2. CONSTRUCTION

2.1 Conductor

Plain, annealed electrolytic copper or Aluminium conductors, circular strandedconforming to the applicable requirements of IEC 60228.

2.2 Conductor Screening

Semi-conducting layer extruded or lapped, completely covering the conductors,conforming to the applicable requirements of IEC 60502-2 recommendations.

2.3 Insulation

XLPE thermosetting material conforming to the applicable requirements of IEC60502-2 ( flame retardant XLPE for specific applications ).

2.4 Insulation Screening

Semi conducting layer extruded (bonded or strippable) or lapped, completelycovering the insulated conductors, and a copper or aluminium tape or wirecompletely covering the semi-conducting layer, conforming to the applicablerequirements of IEC 60502-2 recommendations.N.B.: Lead sheathed cables are also available.

2.5 Assembly

Insulated and screened conductors are laid up, filled where necessary with nonhygroscopic material and covered with an extruded thickness of thermoplasticmaterial, or binding tape.

2.6 Armour

Two layers of steel tape (non magnetic tape for 1 core cables), conforming to theapplicable requirements of IEC 60502-2 recommendation.

Flat or round wires armouring can be provided upon specific customer requirements.

2.7 Sheath

PVC or PE (halogen free or fire retardant compound on special request)thermoplastic material conforming to the applicable requirements of IEC 60502-2.

3. TESTS

All tests required by the IEC 60502-2, either on raw materials or on finished products.

22

SINGLE CORE CABLESFrom 6 to 36 KV


2 Conductor screen

3 XLPE insulation

4 Insulation screen

6

7

M2N - M2A

M3N - M3A

M4N - M4A

M5N - M5A

M6N - M6A

M2NB - M2AB

M3NB - M3AB

M4NB - M4AB

M5NB - M5AB

M6NB - M6AB

M2NFG - M2AFG

M3NFG - M3AFG

M4NFG - M4AFG

M5NFG - M5AFG

M6NFG - M6AFG

M2NR - M2AR

M3NR - M3AR

M4NR - M4AR

M5NR - M5AR

M6NR - M6AR

5Copper or Aluminium tapeor wires screen (or extrudedlead sheath)

Bedding

PVC sheath

8 Double aluminium tape armour

9Flat aluminium strips armourwith one aluminium tapeapplied in helical form

10 Round or flat aluminiumwire armour

123457

1234567 8

1234567 9

1234567 10

23

THREE CORE CABLESFrom 6 to 36 KV

1234

Notes : 1 - Different constructions remain possible on special request.2 - Lead sheathed cables are also available.

567

M2N - M2A

M3N - M3A

M4N - M4A

M5N - M5A

M6N - M6A

1234567 8

M2NB - M2AB

M3NB - M3AB

M4NB - M4AB

M5NB - M5AB

M6NB - M6AB

1234567 9

1234567 10

M2NR - M2AR

M3NR - M3AR

M4NR - M4AR

M5NR - M5AR

M6NR - M6AR

M2NFG - M2AFG

M3NFG - M3AFG

M4NFG - M4AFG

M5NFG - M5AFG

M6NFG - M6AFG

1Stranded copper oraluminium conductor

2 Conductor screen

3 XLPE insulation

4 Insulation screen

6

7

5 Copper tape screen

Bedding

PVC sheath

8 Double steel tape armour

9Galvanized flat steel stripsarmour with flat steel tapeapplied in helical form

10 Galvanized round steelwire armour

24


3.6/6 (7.2) KV - SINGLE CORE, XLPE INSULATED, PVC SHEATHED,SCREENED, UNARMOURED CABLES



drumCable





mm2



Nominalcross

section



formation Alu


crosssection

Insulation

Nominalinductance



Nominalcapacity


500500500500500500500500500500500500500500500500500

245285350400465560685790910

10501280157018702280278034804200

28436895

128185256324398499638804

10511325171021882758

310385500610755985

1270153018202200274034204280530067008500

10550

90142224311421608843

1065130716402098264634604361563172033080

1516171920222425272931353741455156

9.8210.8312.0213.1514.316.017.819.320.822.5524.9327.931.334.939.045.049.6

3.824.836.027.158.3

10.011.813.314.816.5518.7321.324.127.331.037.141.6

1.41.41.51.51.61.61.71.71.81.81.92.02.12.22.32.52.6

-----------------

2.52.52.52.52.52.52.52.52.52.52.62.83.03.23.23.23.2

10162535507095

120150185240300400500630800

1000

10162535507095

120150185240300400500630800

1000

1.831.150.7270.5240.3870.2680.1930.1530.1240.09910.07540.06010.04700.03660.02830.02210.0176

0.4620.4280.3960.3840.3640.3460.3300.3150.3080.3010.2890.2880.2740.2700.2630.2520.248

0.6460.6120.5800.5680.5490.5310.5150.4990.4930.4850.4740.4720.4590.4540.4480.4370.433

0.1690.1950.2250.2540.2830.3250.3700.4070.4440.4870.5230.5480.5980.6310.7110.8320.923

7595

125150180220260300335380440500570640740830920

90120160195230285340385430485560630720800910

10001090

95125165200235295360420475550650740860990

114013001450

7595

125150185230280325370425510580680790920

10701220

80105140165200250305350395465550635740855

100011651340

7085

105125155195240275310365430495580670780910

1090

3.081.911.200.8680.6410.4430.3200.2530.2060.1640.1250.1000.07780.06050.04690.03670.0291




25


3.6/6 (7.2) KV - THREE CORE, XLPE INSULATED, PVC SHEATHED,SCREENED, UNARMOURED CABLES


10162535507095

120150185240300

Radial Thickness of

------------

Lengthon

drumCable

2.52.52.52.52.52.52.52.52.52.52.62.8

1.92.02.12.12.22.32.52.62.72.83.03.2

3.824.836.027.158.3

10.011.813.314.816.5518.7321.3

9.8210.8312.0213.1514.316.017.819.320.822.5524.9327.9

270429679941

12741841255232273960496963578017

303235384044485255596573

10001250162019702420318040904940585070508750

10950

82130206286387559776980

1204151019312435

815945

1140131015301900231026903080357043405400

500500500500500500500250250250250250




10162535507095

120150185240300

1.831.150.7270.5240.3870.2680.1930.1530.1240.09910.07540.0601


mm2



Nominalcross

section



Alu


crosssection

Insulation

Nominalinductance

Ω/Km

3.081.911.200.8680.6410.4430.3200.2530.2060.1640.1250.100

Ω/Km

0.4080.3780.3520.3340.3190.3020.2880.2790.2720.2650.2580.256

mH/Km

0.1690.1950.2250.2540.2830.3250.3700.4070.4440.4870.5230.548

7595

120150175215255290325365425485

90120155190225275330370420470540620

90120155190225280340385445510590675

µF/Km Amp Amp Amp

7090

115145175215260300345395465530

Amp

75100130160190235285325375430505580

Amp

6580

100125145185225255295335395450

Amp

Copper Alu

Nominalcapacity




26


3.6/6 (7.2) KV - THREE CORE, XLPE INSULATED, PVC SHEATHED,SCREENED, DOUBLE STEEL TAPE ARMOURED CABLES.


10162535507095

120150185240300

Radial Thickness of

1.11.21.21.21.31.41.41.51.61.61.71.8

Lengthon

drumCable

2.52.52.52.52.52.52.52.52.52.52.62.8

2.02.12.22.32.42.52.62.82.93.03.23.4

3.824.836.027.158.3

10.011.813.314.816.5518.7321.3

9.8210.8312.0213.1514.316.017.819.320.822.5524.9327.9

270429679941

12741841255232273960496963578017

333740434549545761657179

1360197024102830336042405200620072008500

1040012800

82130206286387559776980

1204151019312435

118016701930217024702960344039504460505060007250

500500500500500500500250250250250250




10162535507095

120150185240300

1.831.150.7270.5240.3870.2680.1930.1530.1240.09910.07540.0601


mm2



Nominalcross

section



Alu


crosssection

Insulation

Nominalinductance

Ω/Km

3.081.911.200.8680.6410.4430.3200.2530.2060.1640.1250.100

Ω/Km

0.4490.4160.3870.3670.3510.3320.3170.3070.2990.2910.2840.282

mH/Km

0.1690.1950.2250.2540.2830.3250.3700.4070.4440.4870.5230.548

7595

120150175215255290325365425485

90120155190225275330370420470540620

90120155190225280340385445510590675

µF/Km Amp Amp Amp

7090

115145175215260300345395465530

Amp

75100130160190235285325375430505580

Amp

6580

100125145185225255295335395450

Amp

Copper Alu

Nominalcapacity




27





drumCable





mm2



Nominalcross

section



formation Alu


crosssection

Insulation

Nominalinductance



Nominalcapacity


----------------

3.43.43.43.43.43.43.43.43.43.43.43.43.43.43.43.4

1.51.51.61.61.71.71.81.81.9222.22.22.42.52.6

4.836.027.158.3

10.011.813.314.816.5518.7321.324.127.331.037.141.6

12.6313.8214.9516.117.819.621.122.624.3526.5329.132.135.339.445.450.0

142224311421608843

1065130716402098264634604361563172039080

18192122242527293133363841465257

450565685825

10701350163019102310287034904350535067508550

10550

436895

128185256324398499638804

10511325171021882758

350410470535645765885

100011701400165019402310283035104240

500500500500500500500500500500500500500500500500

162535507095

120150185240300400500630800

1000

162535507095

120150185240300400500630800

1000

0.4510.4180.4040.3830.3630.3380.3300.3230.3140.3020.2930.2790.2700.2670.2560.251

0.6360.6030.5880.5680.5480.5230.5150.5080.4980.4860.4780.4640.4540.4520.4410.436

0.1580.1810.2020.2240.2560.2890.3170.3450.3770.4170.4640.5360.5970.6730.7870.873

95120150180220260300335380440500570640740830920

120160195230285340385430485560630720800910

10001095

130170200235295360420475550650740860990

114013001455

85115150185230280325370425510580680790920

10701220

105135165200250305350395465550635740855

100011651340

80100125155195240275310365430495580670780910

1090

1.911.200.8680.6410.4430.3200.2530.2060.1640.1250.1000.07780.06050.04690.03670.0291

1.150.7270.5240.3870.2680.1930.1530.1240.09910.07540.06010.04700.03660.02830.02210.0176




28




162535507095

120150185240300

Radial Thickness of

-----------

Lengthon

drumCable

3.43.43.43.43.43.43.43.43.43.43.4

2.12.22.32.42.52.62.72.82.93.13.3

4.836.027.158.3

10.011.813.314.816.5518.7321.3

12.6313.8214.9516.117.819.621.122.624.3526.5329.1

429679941

12741841255232273960496963578017

3639424548535659636975

1470185022402700347044005250615074009200

11250

130206286387559776980

1204151019312435

11701380158018102190262030003420393047905700

500500500500500250250250250250250




162535507095

120150185240300

1.150.7270.5240.3870.2680.1930.1530.1240.09910.07540.0601


mm2



Nominalcross

section



Alu


crosssection

Insulation

Nominalinductance

Ω/Km

1.911.200.8680.6410.4430.3200.2530.2060.1640.1250.100

Ω/Km

0.4050.3770.3570.3400.3210.3060.2960.2870.2790.2730.264

mH/Km

0.1580.1810.2020.2240.2560.2890.3170.3450.3770.4170.464

95125150175215255290325365425485

120155190225275330370420470540610

120155190225280340385445510590680

µF/Km Amp Amp Amp

90120145175215260300345395465535

Amp

100130160190235285325375430505590

Amp

80100125145185225255295335395460

Amp

Copper Alu

Nominalcapacity




29




162535507095

120150185240300

Radial Thickness of

1.21.31.31.41.51.51.61.61.71.81.9

Lengthon

drumCable

3.43.43.43.43.43.43.43.43.43.43.4

2.32.32.42.52.72.82.93.03.13.33.5

4.836.027.158.3

10.011.813.314.816.5518.7321.3

12.6313.8214.9516.117.819.621.122.624.3526.5329.1

429679941

12741841255232273960496963578017

4144475054586265697582

231027503190374046505650665076509000

1100013250

130206286387559776980

1204151019312435

20102280254028603360389043904890555066007650

500500500500500250250250250250250




162535507095

120150185240300

1.150.7270.5240.3870.2680.1930.1530.1240.09910.07540.0601


mm2



Nominalcross

section



Alu


crosssection

Insulation

Nominalinductance

Ω/Km

1.911.200.8680.6410.4430.3200.2530.2060.1640.1250.100

Ω/Km

0.4450.4150.3920.3740.3530.3360.3250.3160.3070.3000.291

mH/Km

0.1580.1810.2020.2240.2560.2890.3170.3450.3770.4170.464

95125150175215255290325365425485

120155190225275330370420470540610

120155190225280340385445510590680

µF/Km Amp Amp Amp

90120145175215260300345395465535

Amp

100130160190235285325375430505590

Amp

80100125145185225255295335395460

Amp

Copper Alu

Nominalcapacity




30


8.7/15 (18) KV - SINGLE CORE, XLPE INSULATED, PVC SHEATHED,SCREENED, UNARMOURED CABLES.



drumCable





mm2



Nominalcross

section



formation Alu


crosssection

Insulation

Nominalinductance



Nominalcapacity


2535507095

120150185240300400500630800

1000

---------------

4.54.54.54.54.54.54.54.54.54.54.54.54.54.54.5

1.61.71.71.71.81.91.92.02.02.12.22.32.42.62.7

6.027.158.3

10.011.813.314.816.5518.7321.324.127.331.037.141.6

16.0217.1518.320.021.823.324.826.5528.7331.334.337.541.647.652.2

224311421608843

1065130716402098264634604361563172039080

222324262830313336384044485459

655780925

11701470175020402470300036504500555069508750

10800

6895

128185256324398499638804

10511325171021882758

500565635745885

1010113013301540181020902490301037404490

500500500500500500500500500500500500500500500

2535507095

120150185240300400500630800

1000

0.7270.5240.3870.2680.1930.1530.124

0.09910.07540.06010.04700.03660.02830.02210.0176

1.200.8680.6410.4430.3200.2530.2060.1640.1250.1000.07780.06050.04690.03670.0291

0.4470.4220.4010.3790.3610.3510.3360.3260.3190.3040.2900.2840.2760.2630.258

0.6320.6070.5850.5640.5460.5360.5210.5110.5040.4890.4740.4680.4610.4480.443

0.1500.1660.1830.2070.2330.2540.2760.3000.3310.3670.4200.4660.5230.6090.674

125150180220260300335380440500570640740830930

160195230280335385430490560640720810910

10051100

170200245305375425485560660750870

1000115012901460

135160190235290330375430510590680790930

10601230

140170205255310355410465555640740855

101011601340

105130160200245280320365435500580670790900

1090* At different operating T(˚C) : R = R20˚C 1+ α (T˚C - 20)

α : Temperature coefficient at 20˚C = 0.00393 for copper & 0.00403 for aluminium



31


8.7/15 (18) KV - THREE CORE, XLPE INSULATED, PVC SHEATHED,SCREENED, UNARMOURED CABLES.


2535507095

120150185240300

Radial Thickness of

----------

Lengthon

drumCable

4.54.54.54.54.54.54.54.54.54.5

2.42.42.52.72.82.93.03.13.33.4

6.027.158.3

10.011.813.314.816.5518.7321.3

16.0217.1518.320.021.823.324.826.5528.7331.3

679941

12741841255232273960496963578017

44475054586165697580

218025703060387048405700665080009800

11800

206286387559776980

1204151019312435

1720192021702590306034703900454053506200

500500500250250250250250250250




2535507095

120150185240300

0.7270.5240.3870.2680.1930.1530.1240.09910.07540.0601


mm2



Nominalcross

section



Alu


crosssection

Insulation

Nominalinductance

Ω/Km

1.200.8680.6410.4430.3200.2530.2060.1640.1250.100

Ω/Km

0.4040.3810.3640.3430.3260.3140.3040.2990.2870.278

mH/Km

0.1500.1660.1830.2070.2330.2540.2760.3000.3310.367

115145175210255290320360420490

155190225270330370415465540620

160195230280345395450510600685

µF/Km Amp Amp Amp

120150175220265305345395470535

Amp

135165195235285330375430510585

Amp

100125150185225260295335400455

Amp

Copper Alu

Nominalcapacity




32


8.7/15 (18) KV - THREE CORE, XLPE INSULATED, PVC SHEATHED,SCREENED, DOUBLE STEEL TAPE ARMOURED CABLES.


2535507095

120150185240300

Radial Thickness of

1.41.41.51.51.61.71.71.81.92.0

Lengthon

drumCable

4.54.54.54.54.54.54.54.54.54.5

2.52.62.72.83.03.13.23.33.53.7

6.027.158.3

10.011.813.314.816.5518.7321.3

16.0217.1518.320.021.823.324.826.5528.7331.3

679941

12741841255232273960496963578017

50525559636770768188

32203690426051506250725083009800

1170014800

206286387559776980

1204151019312435

2740303033703860449050005550635073009200

500500250250250250250250250250




2535507095

120150185240300

0.7270.5240.3870.2680.1930.1530.1240.09910.07540.0601


mm2



Nominalcross

section



Alu


crosssection

Insulation

Nominalinductance

Ω/Km

1.200.8680.6410.4430.3200.2530.2060.1640.1250.100

Ω/Km

0.4440.4200.4000.3770.3580.3450.3350.3290.3160.306

mH/Km

0.1500.1660.1830.2070.2330.2540.2760.3000.3310.367

115145175210255290320360420490

155190225270330370415465540620

160195230280345395450510600685

µF/Km Amp Amp Amp

120150175220265305345395470535

Amp

135165195235285330375430510585

Amp

100125150185225260295335400455

Amp

Copper Alu

Nominalcapacity




33





drumCable





mm2



Nominalcross

section



formation Alu


crosssection

Insulation

Nominalinductance



Nominalcapacity


35507095

120150185240300400500630800

1000

--------------

5.55.55.55.55.55.55.55.55.55.55.55.55.55.5

1.71.81.81.91.92.02.02.12.22.32.42.52.62.8

7.158.3

10.011.813.314.816.5518.7321.324.127.331.037.141.6

19.1520.322.023.825.326.828.5530.7333.336.539.744.450.455.0

311421608843

1065130716402098264634604361563172039080

2526283032343538414346515762

865103012701590186021902590314038104680570072009050

11150

95128185256324398499638804

10511325171021882758

650735850

10001120128014501680196022702680328040104810

500500500500500500500500500500500500500500

150180220260300335380440500570640740830930

195230280335385430490560640720810910

10101105

200245305375425485560660750870

1000115012901460

160190235290330375430510590680790930

10601230

170205255310355410465555640740855

101011551340

130160200245280320365435500580670790900

1090

0.1450.1590.1800.2010.2190.2360.2570.2820.3120.3560.3940.4480.5190.572

35507095

120150185240300400500630800

1000

0.5240.3870.2680.1930.1530.124

0.09910.07540.06010.04700.03660.02830.02210.0176

0.8680.6410.4430.3200.2530.2060.1640.1250.1000.07780.06050.04690.03670.0291

0.4390.4170.3940.3750.3640.3550.3380.3300.3190.3040.2930.2880.2740.268

0.6230.6010.5790.5600.5490.5390.5220.5140.5040.4890.4770.4720.4590.453




34



35507095

120150185240300

0.5240.3870.2680.1930.1530.124

0.09910.07540.0601


mm2



Alu


crosssection

Nominalinductance

Ω/Km

0.8680.6410.4430.3200.2530.2060.1640.1250.100

Ω/Km

0.4020.3830.3600.3420.3300.3220.3110.3000.290

mH/Km

0.1450.1590.1800.2010.2190.2360.2570.2820.312

145175210255290320360420490

190225270330370415465540620

195230280345395450510600685

µF/Km Amp Amp Amp

150175220265305345395470535

Amp

165195235285330375430510585

Amp

125150185225260295335400455

Amp

Copper Alu

Nominalcapacity



35507095

120150185240300

Radial Thickness of

---------

Lengthon

drumCable

5.55.55.55.55.55.55.55.55.5

2.62.72.82.93.03.13.23.43.6

7.158.3

10.011.813.314.816.5518.7321.3

19.1520.322.023.825.326.828.5530.7333.3

94112741841255232273960496963578017

525458626670747985

2900344042505200610072008450

1030012400

286387559776980

1204151019312435

225025502960344038604430495058506800

500250250250250250250250250





Nominalcross

section Insulation




35



35507095

120150185240300

0.5240.3870.2680.1930.1530.124

0.09910.07540.0601


mm2



Alu


crosssection

Nominalinductance

Ω/Km

0.8680.6410.4430.3200.2530.2060.1640.1250.100

Ω/Km

0.4420.4210.3960.3760.3620.3530.3420.3300.345

mH/Km

0.1450.1590.1800.2010.2190.2360.2570.2820.312

145175210255290320360420490

190225270330370415465540620

195230280345395450510600685

µF/Km Amp Amp Amp

150175220265305345395470535

Amp

165195235285330375430510585

Amp

125150185225260295335400455

Amp

Copper Alu

Nominalcapacity



35507095

120150185240300

Radial Thickness of

1.51.61.61.71.81.81.92.02.1

Lengthon

drumCable

5.55.55.55.55.55.55.55.55.5

2.82.93.03.13.23.33.53.73.8

7.158.3

10.011.813.314.816.5518.7321.3

19.1520.322.023.825.326.828.5530.7333.3

94112741841255232273960496963578017

576064687276808793

415047805700680079009000

104001325015500

286387559776980

1204151019312435

350038904400500055506200690087509950

500250250250250250250250250





Nominalcross

section Insulation




36

MEDIUM VOLTAGE CABLESU p t o a n d i n c l u d i n g 36 KV

NOTICE

As this catalogue is not intendedto cover all of LIBAN CABLES SAL possibilities inspecial cables manufacturing, the hereafter listing of the types of cables is not retrictivebut only indicative of the main and most current types we manufacture.

On the other hand, our specification sheets are inspired mainly from InternationalElectrotechnical Commision Specification (IEC) only in order to conform with thesustained trend, noticed both regionally and worlwide, towards these same IECsupposed to inspire any further standardization approaches.

Whereas, in facts some special cables may require special conception, fully within thecapabilities of LIBAN CABLES SAL, ISO 9001 certified, precisely because inposition to conceive / tailor your special needs.

That is why, while consulting this brochure, it is important to take into account that anycombination or change of the constructional details mentioned in this catalogue remainfeasible, on base of special conception / development, matching any special or differentspecifications.

Finally, and within our policy of constant improvement, we reserve the right to alter anypart of the information contained in this publication without incurring any obligation.In all cases this brochure being only indicative, and unless expressly agreed upon, itcannot be considered by any mean as contractual document.

6

1 INTRODUCTION

Devoted to the manufacturing of electric and telecomcables, Liban Cables is the first and largest supplier inLebanon and a leader in the Middle-East region.

Liban Cables was founded in 1968 by a group ofLebanese industrialists backed up by the technicalassistance of two international leading firms :

- Les Cables de Lyon - France

- Phelps Dodge - U.S.A

Staffed with qualified engineers and highly skilledtechnicians, our plant is located in Nahr-Ibrahim at 30Km from Beirut, where cables are designed andmanufactured according to all internationalspecifications : IEC, VDE, UTE, BS, and others oncustomer request.

Early after its foundation, Liban Cables has become themajor supplier of the Lebanese market in both thepublic and private sectors. The product range of LibanCables covers all electric cables up to 245 KV,communications cables (copper and optical fiber) inaddition to a wide variety of special cablesmanufactured on customer request.

High quality cables, continuous developments of theproduction range, direct and fast shipments havecontributed in rendering Liban Cables an importantexporter for many countries on the three limitrophecontinents (Asia, Europe, Africa). Liban Cablesproducts are particularly appreciated by administrationsand international contractors operating in the region andseeking reliable and direct supplies of power andcommunication cables.

7

CONTENTS

P a g e

6

7

8

8

9

9

9

9

10

11

13

13

13

14

14

15

16

16

22

40

42

42

43

4.1

4.2

4.3

4.3.1

4.3.2

4.4

4.5

4.6

4.7

4.8

NOTICE

INTRODUCTION

QUALITY ASSURANCE

RECOMMENDED ORDERING PARAMETERS

GENERALITIES :

Choice of voltage

Determination of the cross sectional area

Current carrying capacities

Buried cables

Cables laid in the air

Inductance

Capacitance

Conductors short circuit current

Screen short circuit current

Minimum bending radius

OUR TYPE AND CODE DESIGNATION

SINGLE AND THREE CORE MEDIUM VOLTAGE CABLES

According to international standard IEC 60502

1.8/3 (3.6) KV Cables, XLPE insulated, PVC or PE sheathed

XLPE insulated, screened, PVC or PE sheathed cables forvoltages up to and including 36 KV.

Insulated Bundled overhead conductors (Torsade)12/20 (24) KV XLPE

TECHNICAL INFORMATION

Formulae

Conversion factors and units

5

4

3

2

1

7

6

6.1

6.2

6.3

7.1

7.2

2

Step by step, from raw material to final product, quality constitutes a major concern toLiban Cables.

Raw material are continuously and repetitively tested from trial orders till the last batchreceived afterwards.

In addition to the final tests carried out on finished products, work in process is alreadytested within two simultaneous procedures :

- A built in quality control system carried out by the production itself at any step ofwork in process.

- A parallel and contradictory procedure is also carried out on the same stages andproducts by independent inspectors reporting to the quality control service.

End users and/or third part inspection authorities are also constantly commissioning thefinished products and assessing the strict conformity to ordered specifications.

In fact, our ISO 9001 certification stated in Feb 1997 by the International CertificationNetwork (EQNET) is certified by the French Association for Quality Assurance(AFAQ), the well known rigourous and independant accredited European assessor.This certification, under reference AFAQ Nº QUAL / 1997 / 7034, confirms thesoundness and the performance of the Quality System we apply for the Design, theDevelopment, the Manufacturing and the Marketing & Sales of all our products.

QUALITY

3 RECOMMENDED ORDERING PARAMETERS

For prompt quotation / supplies please make sure your inquiries and your orders aresecuring the following data :

1 - International or Special Standard. (Alternatively, the precise usage of thecable.)

2 - Rated voltage.

3 - Copper or Aluminium conductors.

4 - Size of each conductor.

5 - Insulation material : XLPE or others.

6 - Number and identification of conductors.

7 - Other requirements.

8 - Packing.

9 - Required delivery time.

10 - Required validity.

8

4.1 CHOICE OF VOLTAGE

The rated voltage is specified as Uo / U where :

Uo is the rated voltage between conductor and screen or outer metallic protection.

U the rated voltage between any two conductors.

In three phase systems Uo is U / 3

The voltage of the cable must be chosen according to the maximum voltage Um innormal working conditions, which must not exceed the rated voltage by more than 20%.

The following table gives the maximum permissible operating voltage relative to eachrated voltage (Uo / U).

4.2 DETERMINATION OF THE CROSS SECTIONAL AREA

The determination of the cross sectional area depends on the :

- Current carrying capacities in continuous loading,- Permissible short-circuit current,- Conditions of installation (temperature, spacing, ...).

4.3 CURRENT CARRYING CAPACITIES

The heat produced by the cable under the set conditions must be able to dissipate to theambient environment at any point of the cable installation; therefore the loading of thecable must be limited accordingly. The current carrying capacities shown in theelectrical characteristics tables are calculated according to the internationally adoptedmethod of the IEC publication 60287 for a maximum core temperature of 90˚C, at thefollowing installation conditions :

4 GENERALITIES

Rated voltageUo / U (Kv)

Max. voltageUm (Kv)

1.8 / 33.6 / 66 / 10

8.7 / 1512 / 2018 / 30

3.67.212182436

√

9

4.3.1. BURIED CABLES

The stated values are for cables or ducts placed in the ground at a depth of 800 mm ofaverage thermal resistivity of 100˚C.cm/w and spaced so that the temperature rise ineach duct has no effect on the other ducts ( space being greater than 1 meter ), for a soiltemperature of 20˚C.

Where the thermal resistivity is different (not 100˚ Ccm/w) the current rating shouldbe multiplied by the correction factors shown in the following table.

Nature of the soil Soil thermal resistivity˚C.cm/w Correction factor

405070

1.251.211.13

Very wet soil

85100

1.051.00

Normal soil

120150

0.940.86

Dry soil

200250300

0.760.700.65

Very dry soil

05

10

1520253035404550

Soiltemperature

(˚C)

651.201.151.11

1.0510.940.880.820.750.670.58

701.181.141.10

1.0510.950.890.840.770.710.63

Carrying core temperature (˚C)

751.171.131.09

1.0410.950.900.850.800.740.67

801.151.121.08

1.0410.960.910.870.820.760.71

851.141.111.07

1.0410.960.920.880.830.780.73

901.131.101.07

1.0410.960.930.890.850.800.76

951.131.101.06

1.0310.970.930.890.860.820.77

1001.121.091.06

1.0310.970.940.900.870.830.79

1051.111.081.06

1.0310.970.940.910.870.840.80

Correction factor for different soil thermal resistivity

Correction factor for different soil temperature

Where the temperature of the soil is different (not 20˚C) the current rating should bemultiplied by the following correction factors.

10

18/30 (36) kv - single core, xlpe insulated, pvc sheathed, … · 2011. 1. 14. · sheath conductor...

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