b-2 rubber insulation -...

ALMA S.r.l.Via Stadio, 252036 Pieve S. Stefano - ItalyTel. +39 0575 7941Fax +39 0575 798026

TRATOS CAVI S.p.a.Via Stadio, 252036 Pieve S. Stefano - ItalyTel. +39 0575 7941Fax +39 0575 [email protected]

TRATOS CAVI S.p.a. filiale CataniaXIII Str. Strad. V.LanciaLoc. Piano D’Arci95121 Catania - ItalyTel. +39 095 7482101Fax +39 095 291059

TRATOS H.V. S.p.a.Via Pian di Guido, 4552036 Pieve S. Stefano - ItalyTel. +39 0575 799429Fax +39 0575 796907

TRATOS LtdUK - Park RoadHolmewood Industrial ParkHolmewood - ChesterfieldDERBYSHIRE S42 5UWTel. +44 01246 858000Fax +44 01246 858001

NORTH WEST CABLES LtdSchool lane, KnowsleyMerseyside L34 9HDTel. +44 01515 483888fax +44 0151 549 1169

TRATOS CAVI Iberica S.L.SpainPaseo de los Parques 6, bloque 6, 1D28109 Alcobendas (Madrid)Tel./ Fax +34 91 6255887

B-2

MEDIUM VOLTAGE CABLES

RUBBERINSULATION

Engineering Data forCopper and Aluminium

Conductors


RUBBERINSULATION


Conductors

Cables design page 2

Introduction 3Technical standardsKey cables codeCables marking

Electrical metallic conductors 4

Metal conductor replacement 5Electrical insulation stress

Special performance cables 6

Alternative kind cables 7

Metallic armour cables 8AWG calculation

Quality System 9Conditions for current ratingsSelection cables for alternative current system

Range and dimension 1.8/3 kV 10-11Range and dimension 3.6/6 kV 12-13Range and dimension 6/10 kV 14-15Range and dimension 8.7/15 kV 16-17Range and dimension 12/20 kV 18-19Range and dimension 15/20 kV 20-21Range and dimension 18/30 kV 22-23Range and dimension 26/45 kV 24-25

Apparent electric resistance of the conductor 26Capacity values

Phase reactance values 27

Group rating factors 28-29

Electrical formulas 30

Final tests 31

Storage and handling 32

Installation 32-33

Packaging 33-34

Glossary 35

CONTENTS

B-2 Rubber Insulation 28-04-2009 9:00 Pagina 1

2

CABLES DESIGN

+TRATOS CAVI+ RG7H1R-12/20 kV

16 5 4 3 2

d - conductordiameter

I - insulation diameterexcluded outsidesemiconductor layer

D - overall cablediameter

7

7 6 5 4 3 2 1

+TRATOS CAVI+ RG7H1OR-12/20 kV

8

+TRATOS CAVI+ RG7H1ORZR

7 6 5 4 3 28 19

1 Copper or aluminium circular stranded compacted conductor

2 Extruded semi-conducting lay3 HEPR insulation4 Extruded semi-conducting layer5 Copper wires screen6 PVC oversheath7 Marking

SINGLE CORE CABLE

1 Copper circular stranded compacted conductor

2 Extruded semi-conducting layer3 HEPR insulation4 Extruded semi-conducting layer5 Copper tapes screen6 Not hygroscopic filler7 PVC oversheath8 Marking

THREE CORES CABLE

1 Copper or aluminium circular stranded conductor

2 Extruded semi-conducting layer3 HEPR insulation4 Extruded semi-conducting layer5 Copper tapes screen6 Not hygroscopic filler7 Galvanized steel flat wire armour8 PVC oversheath9 Marking

THREE CORES ARMOURED CABLE


3

This booklet is designed to help engineers in the selection of conductors sizes and in the installation of cablessystem.The information provide general cross sectional area, outside diameter, weight, bending radius and handlingcables. Besides you can select the ampacity of a cable and the various factors given for any installationcondition varying from those for which the tables where calculated.Basic data has been calculated in compliance of the conditions as page 9.Furthermore detailed information may be requested directly to our customer’s assistance service office. Pleaseto take into consideration many alternative kind cables with special performances as described on pages 4, 5,6, 7 and 8.We are available to produce cables with AWG conductors size, as shown on page 8, to employ by end-useroperating out from metric-system area.

INTRODUCTION TO MEDIUM VOLTAGE CABLES

TECHNICAL STANDARDS

CEI 20-13 Rubber insulated cables with rated voltages between 1 kV and 30 kVUo/U (Um) 1.8/3(3.6) 3.6/6(7.2) kV 6/10(12) kV 8.7/15(17.5) kV 126/20(24) kV 18/30(36) kV

CEI 20-66 Power cables with extruded insulation for rated voltage above 30 kV (Um 42 kV) up to 150 kV (Um 170 kV) Uo/U (Um) 26/45(52) kV

CEI 20-29 Conductor of insulated cables

EN 50265 Test for vertical flame propagation for single insulated conductor or cable

CEI 20-21 Calculation of the current rating

CEI 11-17 Generation, trasmission and distribution systems of electric power - Cables installation

A Aluminium conductorR Conductor class 2 (without any lettere

before R mean copper conductor)E4 XLPE polyetylene insulationG7 HEPR high ethylene propylene rubber

insulationH1 Tapes or wires copper screenH5 Longitudinally thermosealed aluminium

tapeR PVC - polyvinyl chloride sheathE Polyetylene sheathM1 LS0H - low smoke zero halogen

compound

O Mean three phases under the same outersheath

A Steel braid armourAH6 Corrugated aluminium tape

electroweldedH6 Corrugated steel tape electroweldedH9 Corrugated steel tape thermosealedZ Flat steel wires armourN Steel tapes armourNA Aluminium tapes armourF(SWA) Steel wires armourFA(AWA) Aluminium wires armourX Mean three single sheathed cables

assembled together

KEY CABLES CODE

CABLES MARKING

+TRATOS CAVI+ RG7H1R-12/20 kV 1X400 mm2 CEI 20-13 5/2007 001

facility

location

cable manufacturername

cable code

rated voltage Uo/U

conductor number and size

lot number and production year

metric marking

technical standards

In order to provide the cable type identification , cable-maker and generally its traceability in compliance ofQuality Guarantee rules, any cables has an entire code continually printed or engraved or embossed on theouter-sheath.


CHARACTERISTICS

code

chemical symbol

density

resistivity at 20°C

electric conductivity

thermal conducivity

breaking load

breaking elongation

elastic module

melting temp.

specific heat

temp. variation coef.

linear dielectric coef.

4

ELECTRICAL METALLIC CONDUCTORS

1- class 2 round stranded not compacted2- class 2 round stranded compacted3- class 5 uniform bunched wires4- class 2 round compacted water blocking5- class 1 round solid6- class 1 shaped solid7- class 1 shaped stranded

Copper and aluminum are the most employed metals for conductors in the cables power production tecnology.Their application is due to different parameters as electric conductivity, density (mass per unit volium),breakingload and elongation, malleability, thermal conductivity, elastic module and finally metal cost-effective. Theshape of conductors and their rigidity or flexibility is designed in consideration of the final application and of therated voltage cable.For medium tension cable is very important a smouth outside surface metal conductor to reduce electricalinsulation stress. For the pourpose any MT conductor is compacted by special tools suitable to calibrate outsidediameter and surface. In all tables we report the nominal cables section expressed in mm2 but the realconductor size considered is difined Electrical Section that is guaranteed by means of check of the maximumappropriate electrical resistance at 20°C in compliance of technical standards.

1 2 3 4 5 76

A L U M I N I U M

ALLOY

-

2.7

32.50

53

1.84

35-40

4-6

6000

657

0.214

0.0036

23

ANNEALED

COPPER

Cu-ETP

Cu

8.89

17.241

100

3.893

20-30

25-30

10500

1083

0.093

0.00393

17

HARD

COPPER

Cu

8.89

17.586

98

3.893

35-50

0.5-3

12000

1083

0.093

0.00393

17

ALUMINIUM

(3/4 HARD)

Al 99.5

Al

2,7

28.264

61

2.218

12-15

1.5-3

5600

657

0.214

0.00403

23

LEAD

Pb

11.35

206

8.4

0,35

1.75

20-50

1700

327

0.030

0.0042

29

STEEL

Fe

7.8

190

9

0.46

40-150

2-6

18500

1400

0.114

0.004

11.5

UNITS

Kg/dm3

O h m . k m / m m2

% IACS*

W/cm.k

daN/mm2

%

daN/mm2

°C

Cal/°C.g

k-1

k-1 (x 10-6)

METAL CHARACTERISTICS

When is necessary to improve a few basic metal characteristics is possible to lose or reduce significant otherproperties. However typical metal characteristcs ordinary way contemplated, over any global evaulation, areindicated in the table below.Copper results to hold the greatest electrical conductivity but despite that its price may be still high if comparedwith aluminium for example. Following information help you a fully technical evaluation.

* International Annealed Copper standard


5

= 0.610.017241 Ohm • mm2/m at 20° C

0.028264 Ohm • mm2/m at 20° CAl resistivity

Cu resistivity

Due to the above equivalence how to change an aluminuim cable in a copper cable and contrariwise:

example

Al cable size 240 mm2 • 0.61 = 146.40 mm2 Cu (mathematical size)consequently the nearest available standard size to use is 150 mm2 Cu

Cu cable size 240 mm2 : 0.61 = 393.44 mm2 Al (mathematical size)consequently the nearest available standard size to use is 400 mm2 Al

Strictly connected to metal market price an important save money may be achieved by to use aluminiumcables instead of copper cables. In this case a calculation of aluminium conductor size, bigger thancopper, is possibile by electrical equivalence formula:

METAL CONDUCTOR REPLACEMENT

UoEx = kV/mm

x In (R/r)

The HEPR insulation is extruded simultaneously with the conductor screen and the insulation screen.The surfaces between inner semicondutor layer and HEPR insulation and between insulation and outsidesemiconductor layer are not exposed to environment conditions. Triple steam or dry curing extrusion guaranteehigh products quality. Is known that the electrical stress is maximum at the conductor level surface anddecrease drawing up outside insulation layer.In order to avoid stress peak in the medium voltage cable compacted metallic conductors with homogeneousand smooth surface are employed. Besides that the extruded conductor screen allows an uniform electric fieldwhich contributes for a long duration cable life.The insulation thickness may be calculated by following formula.

ELECTRICAL INSULATION STRESS

R radius under insulation screen

r radius over conductor screen

Uo voltage across insulation

kV/mm

r

conductor

level

R

outside

insulation level

INSULATION STRESS VALUE

example 18/36 kV

4.24.0

2.7


6

EN 50265 Test for resistance to vertical flame propagation for a single insulated conductor or cableIEC 60332-1

EN 50266 Test for vertical flame spread of vertically-mounted bunched wires or cablesIEC 60332-3

EN 50267 Test on gases evolved during combustion of materials from cablesIEC 60754

EN 61034 Measurement of smoke density of cables burning under defined conditionsIEC 61034

SPECIAL PERFORMANCE CABLES

FLAME RETARDANT - LOW SMOKE - ZERO HALOGENS (LS0H)

EN 50265IEC 60332-1

EN 50267IEC 60754

EN 61034IEC 61034

EN 50266IEC 60332-3

Fire is one of the most danger for popolations and equipments especially inside structures and in any placewhere it may happen. Very frequently that is due to the very extensive use of cables. They can be an importantcomponents to trigger fire, carry flames everywhere, developping acid gasses and dark fumes very hazardousfor persons.In consideration of past tragic happenings have been developped special cables with particolar performancesreaction to fire as to design cables with components able to avoid issue aggressive substances underburningsevent without loosing or altering any basic feature.

Flame Retardancy - cables in compliance of standards country regualtions suitable to overcome specialresctrict propagation test on single cable or bunched cables with definite volium per meter of non metallicmaterial. Its behaviour is strictly related to the combustion quantity material exposed to the flame, temperatureand aeration.Corrosivity Combustion Gasses - not LS0H during combustion develop great quantities of corrosive andtoxic gasses. New generation cables reduce or entirely remove it.Intensity and Dark Smoke - under fire conditions not LS0H cables release dark smokes that prevent peopleevacuation, that has been restricted ta lot, as a special test able to verify residue light across the smokesshows.


7

ALTERNATIVE KIND CABLES

1- Particularly eligible for installations in contact with water and moisture contact thanks to longitudinallythermosealed aluminium tape screen absoluty safety of transverse tightness.

2- In any habitat place where a limited a EMF level is required we provide through the electrical balance ofconductor and cable screen.

3- Root Cable is a commercial brand cable in aluminium or copper conductor with a non metallic mechanicalprotection made-up of an under outersheath plastic layer able to cushion heavy blow and to safeguard thebelow metallic cable screen.

Alternative kinds of cable are possible to be engineered in order to ensure a long term service with largetolerability for specific working conditions as dry and wet ground, rain and snow, under-water without any cover,direct exposition to the sun, places where cables can be crashed into etc.Electromagnetic Fields (EMF) are one of the most technical matters that affect environment condition thatmay be supervised by an appropriate increase of the cable metallic screen.

1 2 3

4- Self supporting cables for overhead installations through aluminium steel cladding rope laid in the central ofthree single phases. That rope can be replaced with a non metallic rope. This involves a new cable design withan increase screen size to allow electrical current fault discharge.

5- Three-phases underground cable with additional cables service.

6- Composite MT and FO cable where three-phases power elements and telecomunication aggregate fiberoptic cable able to work under the same outersheath.

4 5 6

conductor

conductor conductor

supporting rope

Dcable diameter

phasediameter

phase

cable service

commonoutersheat optical cable

Dcable diameter

Dcable diameter


8

METALLIC ARMOUR CABLES

AWG CALCULATION

AH6 longitudinally overlapping corrugate aluminium tapeH6 longitudinally overlapping corrugate steel tape electroweldedH9 longitudinally overlapping corrugate steel tape thermosealed

A few different types of armour can be designed as protection of cables against crahs ,bl ow, shock, cuts, abra s i o n se t c . F u rt h e rmore in order to avoid electrical induction in the single phase cables the armour must be made-up ofnon-magnetic metals as copper, aluminium, bronze etc..Steel braid armour - a few group of wires braided together in opposite way.Wires armour - a layer of round wires.Tapes armour - double tapes wrapped in the same direction in open helics, the second one to cover underlyings space.Corrugated armour - a single longitudinally smooth tape corrugated by a special tool.Flat wires armour - a layer of wrapped flat wires with a contra ry tape wrapped in open helics.

For any operator in a market where there is in force AWG system the following table can be used to turn mm2to AWG or CM and contrariwise. Please keep in consideration some ineluctable approximate calculation dueto standard metric system size.

A steel braid armour

F (SWA) a layer of wrapped steel round wiresFA (AWA) a layer of wrapped aluminium round wires

Z a layer of wrapped steel flat wires with a contrarysteel tape wrapped in open helics

N double steel tapes wrapped in open helics, the second one to cover underlyings space

NA double aluminium tapes wrapped in open helics, the second one to cover underlyings space

Stand.sizemm2

101625

355070

95120150

185240300

400500630

80010001200

1400160018002000

8 AWG6 AWG4 AWG

2 AWG1 AWG

3/0 AWG

4/0 AWG5/0 AWG6/0 AWG

7/0 AWG8/0 AWG9/0 AWG

10/0 AWG11/0 AWG12/0 AWG

13/0 AWG14/0 AWG15/0 AWG

15/0 AWG16/0 AWG16/0 AWG17/0 AWG

Stand.sizemm2

8.36613.30221.151

33.63142.40885.029

107.219135.219170.485

214.978271.082341.829

431.038543.529685.377

864.2441089.7921374.202

1374.2021732.8371732.8372185.068

CM( circ.mil )

197353157649338

6907398676

138147

187485236823296029

365102473646592058

789410986763

1243321

157882019735252368230

2762935315764035523453947050

Elec. resist.Ohm/km20°C Al

3.081.911.20

0.8680.6410.443

0.3200.2530.206

0.1640.1250.100

0.07780.06050.0469

0.03670.02910.0247

0.02120.01860.01650.0149

Elec. resist.Ohm/km20°C Cu

3.682.29

1.418

0.9030.7560.365

0.2830.2240.181

0.1410.111

0.0877

0.07210.05560.0431

0.03390.02670.0216

0.02160.01710.01710.0136

Elec. resist.Ohm/km20°C Al

2.191.38

0.859

0.5450.4560.220

0.1710.1360.109

0.08520.06670.0527

0.04360.03360.0260

0.02050.01610.0132

0.01320.01040.01040.0082

CM( circ.mil )

165102625141741

6637183693

167806

211600266823336457

424265534988674607

85066410726681352609

170560821507322712023

2712023341979834197984312286

approx.diam.mil *

162.3205.2256.6

303.6362.8429.3

500.1562.1628.4

697.9794.9888.7

1026.21147.31287.9

1451.31622.61777.4

1919.92052.42176.92294.7

approx.diam.mil *

148.4187.1236.0

297.6334.1473.1

531.3596.6670.0

752.3844.8948.7

1065.31196.21343.3

1508.41693.91902.1

1902.12135.92135.92398.5

Elec. resist.Ohm/km20°C Cu

1.831.15

0.727

0.5240.3870.268

0.1930.1530.124

0.09910.07540.0601

0.04700.03660.0283

0.02210.01760.0151

0.01290.01130.01010.0090

Approximate parallel square-mm to AWG Conversion AWG to square-mmAWGreference

*stranded conductor


9

class

B

AB

AB

AB

AB

AB

AB

maximum time for each test

with groundedphase*

over 8 h

up to 8 hover 8 h

up to 8 hover 8 h

up to 8 hover 8 h

up to 8 hover 8 h

up to 8 hover 8 h

up to 8 hover 8 h

with screenon the

single core Uo (kV)

1.8

3.66

68.7

8.712

1215

1826

2630

withoutscreen on the

single-core Uo/U kV

1.8/3

3.6/6–

––

––

––

––

––

Three-phases system characteristics Insulation rating cables

Uo = relates to the nominal tension between a conductor and earth

U = relates to the nominal tension between the conductors of the cable

Um = maximum tension for which the cable is suitable

* The whole annual period must be established in consideration of the environmental conditions

Current ratings values stated in the following schedules have been calculated in compliance with IEC 60287standard.

Current ratings values refer to the following conditions:Conductor maximum temperature 90° CAmbient temperature for installation in open air 30° CAmbient temperature for underground installation 20° C

Laying dephtsmt. 0.8 for voltages U = 3.0÷10kVmt. 1.0 for voltages U = 15÷30kVmt. 1.2 for voltages U = 45kV

Thermal resistivity (Rt)ground 100 and 200° C . cm/WHEPR insulation 450° C . cm/WPVC oversheath 500° C . cm/W

The metallic screen (6 mm2 standard size), jointed together, are connected to earth.

CONDITIONS FOR CURRENT RATINGS

SELECTION OF CABLES FOR ALTERNATIVE CURRENT SYSTEM

QUALITY SYSTEM

Our Quality System management includes twocertificates:Basec (UK) and Aenor (E), in accordance to ISO9001 covering the production, purchasing of rawmaterials, design and final test including variousdocument typologies.Tratos Quality System management is underconstant control by auditing inspectors.

nominaltensionU (kV)

3

6

10

15

20

30

45

maximumtensionUm (kV)

3.6

7.2

12

17.5

24

36

52


10

ARMOURED THREE-CORES RG7H10ZR-1.8/3 kV - ARG7H10ZR-1.8/3 kV

THREE-CORES RG7H10R-1.8/3 kV - ARG7H10R-1.8/3 kV

SINGLE-CORE RG7H1R-1.8/3 kV - ARG7H1R-1.8/3 kV

RANGE AND DIMENSIONS

conductordiameter

d

mm.

3.84.86.07.08.2

9.911.512.914.216.2

18.221.223.427.330.5

insulationthickness

mm.

2.02.02.02.02.0

2.02.02.02.02.0

2.02.02.02.22.4

nominaloverall

diameterD

mm.

11.812.814.415.417.0

19.220.822.224.025.6

28.030.534.038.041.5

maximumoverall

diameter

mm.

13.814.816.417.419.0

21.222.824.226.027.6

30.032.536.040.043.5

minimumbendingradius

mm.

170180210220240

270290310340360

395430480540580

approximatecable weight

kg/km

Al

––––422

537641741864

1008

12141460180822232679

n o m i n a larea conductor

mm2

1x 101x 161x 251x 351x 50

1x 701x 951x1201x1501x185

1x2401x3001x4001x5001x630

Cu

252327443553722

9571212146117652118

26543259420752226457

conductordiameter

d

mm.

3.84.86.07.0

8.29.9

11.512.914.2

16.218.221.223.427.3

insulationthickness

mm.

2.02.02.02.0

2.02.02.02.02.0

2.02.02.02.02.2

nominaloverall

diameterD

mm.

24.226.028.530.7

33.337.141.644.648.8

52.758.564.270.480.5

maximumoverall

diameter

mm.

26.228.030-532.7

35.339.143.646.650.8

54.760.566.272.482.5


mm.

340370400430

470530580630680

740820900990

1130


kg/km

Cu

965122015761954

24863231416550106117

73599288

113381455118308

Al

––––

15861971245228503417

40294968594173549311


mm2

3x 103x 163x 253x 35

3x 503x 703x 953x1203x150

3x1853x2403x3003x4003x500

conductordiameter

d

mm.

3.84.86.07.0

8.29.9

11.512.914.2

16.218.221.223.427.3

insulationthickness

mm.

2.02.02.02.0

2.02.02.02.02.0

2.02.02.02.02.2

nominaloverall

diameterD

mm.

27.529.932.835.0

38.442.846.649.854.2

58.062.969.874.985.7

maximumoverall

diameter

mm.

30.032.435.337.5

40.945.349.152.356.7

60.565.472.377.488.2


mm.

387420562492

539602654699760

814882980

10501201


kg/km

Cu

1323163320662478

32694170515661017310

864310685129201624020385

Al

––––

23692910344339414610

5313636575239043

11388


mm2

3x 103x 163x 253x 35

3x 503x 703x 953x1203x150

3x1853x2403x3003x4003x500


11

CONTINUOUS CURRENT RATINGS (AMPERE)

CONTINUOUS CURRENT RATINGS (AMPERE)

CONTINUOUS CURRENT RATINGS (ampere)


Cu

93119154186

217266316360400

452520583652733

Al

––––

168208246280312

354408461522593

Cu

7293

118140

166203238272306

345398445498560

Al

––––

130158185210236

270312352398454

Cu

85108145176

208264319368412

472556638718820

Al

––––

160204248286325

374438502575660

ground laying

Rt=100 °C cm/W Rt=200 °C cm/Wair laying

Cu

88115146173

205254300343383

435506566644729

Al

––––

161198236268300

339394446510576

Cu

7088

113136

160194233264296

333386434493560

Al

––––

125152181206230

262302342391443

Cu

80104136167

200248302350396

454540615714824

Al

––––

154193236274312

356422487566651

ground laying


Cu

103135172206240

292352400444502

580651736831930

Al

––––

187

230278314352398

461521596676765

Cu

97124160190228

277330377420475

549621701790 883

Al

––––

176

215258296330372

433490561641724

Cu

78102130152180

218258292328370

426479542606676

Al

––––

139

172206230260292

337380437493557

Cu

7296

121141170

206247279308349

402452510576642

Al

––––

130

161192218243270

318358409462552

Cu

113142191230277

347425487551632

746856991

11411302

Al

––––

215

270330383433501

591686800937

1068

Cu

89117150180220

275337392445516

617710825952

1100

Al

––––

169

216262306347402

482559657765898

ground laying


• • • • • ••

• • •

• • • • ••

• •


mm2

1x 101x 161x 251x 351x 50

1x 701x 951x1201x1501x185

1x2401x3001x4001x5001x630


mm2

3x 103x 163x 253x 35

3x 503x 703x 953x1203x150

3x1853x2403x3003x4003x500


mm2

3x 103x 163x 253x 35

3x 503x 703x 953x1203x150

3x1853x2403x3003x4003x500


12





conductordiameter

d

mm.

3.84.86.07.08.2

9.911.512.914.216.2

18.221.223.427.330.5

insulationthickness

mm.

3.03.03.03.03.0

3.03.03.03.03.0

3.03.03.03.23.2

nominaloverall

diameterD

mm.

15.416.317.918.920.5

22.223.825.227.029.0

31.434.436.641.244.5

maximumoverall

diameter

mm.

17.418.319.920.922.5

24.225.827.229.031.0

33.436.438.643.246.5


mm.

210230240260280

310340370380400

440480510570620


kg/km

conductordiameter

d

mm.

3.84.86.07.0

8.29.9

11.512.914.2

16.218.221.223.427.3

insulationthickness

mm.

3.03.03.03.0

3.03.03.03.03.0

3.03.03.03.03.2

nominaloverall

diameterD

mm.

31.233.335.938.0

41.245.048.752.155.3

59.864.571.476.786.6

maximumoverall

diameter

mm.

33.235.338.040.0

43.247.050.755.058.3

62.867.574.479.789.6


mm.

437468504532

578632983731776

839905

100010751215


kg/km

conductordiameter

d

mm.

3.84.86.07.0

8.29.9

11.512.914.2

16.218.221.223.427.3

insulationthickness

mm.

3.03.03.03.0

3.03.03.03.03.0

3.03.03.03.03.2

nominaloverall

diameterD

mm.

35.037.941.143.2

46.250.354.157.561.8

65.672.176.884.595.2

maximumoverall

diameter

mm.

37.040.443.645.7

48.752.856.660.064.3

68.174.679.387.097.7


mm.

492532577606

648706459807867

9201012107711851334


kg/km

Cu

380458591705894

11161381164416592335

29093525446855316778

Al

––––594

696810924

10591225

14691726206925323000

Cu

1490176721822585

32364044499359487113

833410248125361575819628

Al

––––

23362748328037884413

5004592871398561

10631

Cu

1946248630183472

41665088613571568401

975211795141921761021600

Al

––––

32663828442249965701

642274758795

1041312603


mm2

1x 101x 161x 251x 351x 50

1x 701x 951x1201x1501x185

1x2401x3001x4001x5001x630


mm2

3x 103x 163x 253x 35

3x 503x 703x 953x1203x150

3x1853x2403x3003x4003x500


mm2

3x 103x 163x 253x 35

3x 503x 703x 953x1203x150

3x1853x2403x3003x4003x500


13





Cu

95120154185

217264315358398

452518584652736

Al

––––

169206245280312

354408460520593

Cu

7294

119140

166203242275306

346397446502562

Al

––––

130158188215240

270312352398455

Cu

87112146178

210264320370415

477556637719824

Al

––––

164205250288326

372438502572664

ground laying


Cu

82106137164

194240286327364

412477541616701

Al

––––

152186222256285

322374425488560

Cu

6885

111133

156190226257286

324377423480544

Al

––––

120147176200224

256296335383436

Cu

78101130156

189234286330370

426501576666770

Al

––––

146182222257290

335394456530614

ground laying


Cu

101130164196235

287342390432490

568642727820914

Al

––––

180

222267304342387

450511584667751

Cu

94124157186222

269323370413470

542612693769874

Al

––––

170

210252287324366

424480552632717

Cu

7898

124152178

217258291327368

424475536602668

Al

––––

137

168203232258291

335379430493557

Cu

7192

120140168

203243274308344

402452512574641

Al

––––

132

157190216242272

315355406465528

Cu

107138179219263

330402465525606

714820950

11021265

Al

––––

208

259317368417482

565655764829

1035

Cu

89111148184222

272336390442516

610702815940

1085

Al

––––

169

213260304346400

479552647757882

ground laying


• • • • • ••

• • •

• • • • ••

• •


mm2

1x 101x 161x 251x 351x 50

1x 701x 951x1201x1501x185

1x2401x3001x4001x5001x630


mm2

3x 103x 163x 253x 35

3x 503x 703x 953x1203x150

3x1853x2403x3003x4003x500


mm2

3x 103x 163x 253x 35

3x 503x 703x 953x1203x150

3x1853x2403x3003x4003x500


14

ARMOURED THREE-CORES RG7H10ZR-6/10 kV - ARG7H10ZR-6/10 kV

THREE-CORES RG7H10R-6/10 kV - ARG7H10R-6/10 kV

SINGLE-CORE RG7H1R-6/10 kV - ARG7H1R-6/10 kV


conductordiameter

d

mm.

3.84.86.07.08.2

9.911.512.914.216.2

18.221.223.427.330.5

insulationthickness

mm.

3.43.43.43.43.4

3.43.43.43.43.4

3.43.43.43.43.4

nominaloverall

diameterD

mm.

17.618.620.221.222.4

24.025.727.528.930.9

33.835.838.042.345.5

maximumoverall

diameter

mm.

19.620.622.223.224.4

26.027.729.530.932.9

35.837.840.044.347.5


mm.

250265290300316

340365390408440

480510550590650


kg/km

conductordiameter

d

mm.

3.84.86.07.0

8.29.9

11.512.914.2

16.218.221.223.427.3

insulationthickness

mm.

3.43.43.43.4

3.43.43.43.43.4

3.43.43.43.43.4

nominaloverall

diameterD

mm.

34.937.140.142.4

45.449.152.956.359.1

64.068.775.581.189.5

maximumoverall

diameter

mm.

36.939.142.144.4

47.451.154.958.361.1

66.070.777.583.191.5


mm.

490520562595

637690742790830

898963

105911381255


kg/km

conductordiameter

d

mm.

3.84.86.07.0

8.29.9

11.512.914.2

16.218.221.223.427.3

insulationthickness

mm.

3.43.43.43.4

3.43.43.43.43.4

3.43.43.43.43.4

nominaloverall

diameterD

mm.

40.242.445.448.0

50.954.658.461.864.8

69.774.481.286.494.8

maximumoverall

diameter

mm.

42.744.947.950.5

53.457.160.964.367.3

72.276.983.788.997.3


mm.

564595637674

714766819867909

9771043113812111329


kg/km

Cu

473560699821973

12191495178720792472

30513643461156816876

Al

––––653

799924

106711791362

16111844221226823093

Cu

1898224427293210

38614702 5744 6722 7885

9304 11392 13650 17151 20926

Al

––––

29613442403145625185

6000707282539954

11929

Cu

2711310736594214

49245851697380259257

1080212954153971888522817

Al

––––

40244591526058656557

74728634

100001168813820


mm2

1x 101x 161x 251x 351x 50

1x 701x 951x1201x1501x185

1x2401x3001x4001x5001x630


mm2

3x 103x 163x 253x 35

3x 503x 703x 953x1203x150

3x1853x2403x3003x4003x500


mm2

3x 103x 163x 253x 35

3x 503x 703x 953x1203x150

3x1853x2403x3003x4003x500


15





Cu

78114148178

210258308350387

439514582657746

Al

––––

165202240274305

345400454517587

Cu

6690

118140

165200238270302

340395446507576

Al

––––

127156186209233

265308348396452

Cu

75108142173

206262318367406

468552630722837

Al

––––

165205247285320

368434498572662

ground laying


Cu

77111144170

202248297336376

423489551622703

Al

––––

158196232263294

332385433493562

Cu

6589

116137

161197234265292

330380428483552

Al

––––

126152182206231

260302339386436

Cu

71104142171

203252305351392

447524595676781

Al

––––

159198237273305

348410470541625

ground laying


Cu

98125163195230

282342385432490

566634721811902

Al

––––

180

220268305342387

450502578654738

Cu

95120154183216

267320367410465

542607691782876

Al

––––

169

210252287320363

423478548632712

Cu

78100126150 178

216 258 293 326369

425477536607671

Al

––––

138

169204232258292

335379433492553

Cu

7292

118140166

202243276308347

400452510574645

Al

––––

128

159189215242272

316357405460526

Cu

103137179218260

327399460521600

704811937

10811230

Al

––––

204

256312361410471

561645756876998

Cu

92118154186223

278340396448517

612704816944

1087

Al

––––

174

218266309352406

480553647756882

ground laying


• • • • • ••

• • •

• • • • ••

• •


mm2

1x 101x 161x 251x 351x 50

1x 701x 951x1201x1501x185

1x2401x3001x4001x5001x630


mm2

3x 103x 163x 253x 35

3x 503x 703x 953x1203x150

3x1853x2403x3003x4003x500


mm2

3x 103x 163x 253x 35

3x 503x 703x 953x1203x150

3x1853x2403x3003x4003x500


16





conductordiameter

d

mm.

4.86.07.08.2

9.911.512.914.216.2

18.221.223.427.330.5

insulationthickness

mm.

4.54.54.54.5

4.54.54.54.54.5

4.54.54.54.54.5

nominaloverall

diameterD

mm.

21.222.423.424.6

26.327.929.331.033.0

35.038.040.244.147.3

maximumoverall

diameter

mm.

23.224.425.426.6

28.329.931.333.035.0

37.040.042.246.149.3


mm.

300320330350

375395420450470

510540574630690


kg/km

conductordiameter

d

mm.

4.86.07.08.2

9.911.512.914.2

16.218.221.223.4

insulationthickness

mm.

4.54.54.54.5

4.54.54.54.5

4.54.54.54.5

nominaloverall

diameterD

mm.

42.245.447.550.5

54.258.261.664.4

69.173.880.785.8

maximumoverall

diameter

mm.

44.447.449.552.5

56.260.263.666.4

71.175.882.787.8


mm.

595637667709

760816865905

970103511321204


kg/km

Cu

683804934

1104

13461622189122522620

32143812484959537131

Al

–––804

9261051117113521510

17742013245029543353

Cu

2594309835514229

5070614871488257

9684117481409017448

Al

–––

3329

3810443549885557

635474288693

10251

conductordiameter

d

mm.

4.86.07.08.2

9.911.512.914.2

16.218.221.223.4

insulationthickness

mm.

4.54.54.54.5

4.54.54.54.5

4.54.54.54.5

nominaloverall

diameterD

mm.

47.750.953.056.0

59.763.967.370.1

74.879.586.491.1

maximumoverall

diameter

mm.

50.253.455.558.3

62.266.469.872.6

77.382.088.993.6


mm.

669714744786

837896944983

1049111512111277


kg/km

Cu

3614420147085457

6390757986639846

11379135571605919453

Al

–––

4557

5130586665037146

80499237

1066212256


mm2

1x 161x 251x 351x 50

1x 701x 951x1201x1501x185

1x2401x3001x4001x5001x630


mm2

3x 163x 253x 353x 50

3x 703x 953x1203x150

3x1853x2403x3003x400


mm2

3x 163x 253x 353x 50

3x 703x 953x1203x150

3x1853x2403x3003x400


17





Cu

102146175202

248300336375

432504565637

Al

–––

160

197234265298

337390442500

Cu

85115136160

197232263293

334385433491

Al

–––

124

152180204230

258304336388

Cu

98144176209

260312360408

469550632720

Al

–––

164

204244282320

368432497572

ground laying


Cu

98141168197

242289326 366

412475535606

Al

–––

154

189226254287

322373422480

Cu

82111135156

192226256288

323372421472

Al

–––

123

151177202225

254292330376

Cu

95141170204

252302345391

447521596681

Al

–––

160

197237270306

351408469541

ground laying


Cu

122160192224

276332376420476

550621702787870

Al

–––

176

217259298331376

435492565636715

Cu

118152181213

262314358399452

524591670759849

Al

–––

166

205244281313355

413466536616695

Cu

98124149173

212253287319360

414464520585646

Al

–––

136

167197226252284

328370422476536

Cu

91118140164

200238271301341

393440501566630

Al

–––

127

154184212235266

309348398451511

Cu

134178214259

324394455516592

702802921

10611212

Al

–––

202

254310361405468

556636745862987

Cu

122156189226

281345399451518

613705816944

1087

Al

–––

174

220268311352406

481553646754880

ground laying


• • • • • ••

• • •

• • • • ••

• •


mm2

1x 161x 251x 351x 50

1x 701x 951x1201x1501x185

1x2401x3001x4001x5001x630


mm2

3x 163x 253x 353x 50

3x 703x 953x1203x150

3x1853x2403x3003x400


mm2

3x 163x 253x 353x 50

3x 703x 953x1203x150

3x1853x2403x3003x400


18

ARMOURED THREE-CORES RG7H10ZR-12/20 kV - ARG7H10ZR-12/20kV

THREE-CORES RG7H10R-12/20 kV - ARG7H10R-12/20kV

SINGLE-CORE RG7H1R-12/20 kV - ARG7H1R-12/20kV


conductordiameter

d

mm.

6.07.08.29.9

11.512.914.216.2

18.221.223.427.330.5

insulationthickness

mm.

5.55.55.55.5

5.55.55.55.5

5.55.55.55.55.5

nominaloverall

diameterD

mm.

24.325.326.528.2

30.231.632.934.9

36.939.942.146.850.0

maximumoverall

diameter

mm.

26.327.328.530.2

32.233.634.936.9

38.941.944.148.852.0


mm.

342360380400

430450475500

540570620670730


kg/km

conductordiameter

d

mm.

6.07.08.29.9

11.5

12.914.216.218.221.2

insulationthickness

mm.

5.55.55.55.55.5

5.55.55.55.55.5

nominaloverall

diameterD

mm.

49.552.255.459.162.9

66.069.173.878.585.4

maximumoverall

diameter

mm.

51.554.557.461.164.9

68.071.175.880.587.4


mm.

695737777830882

926969

103511021198


kg/km

conductordiameter

d

mm.

6.07.08.2

9.911.512.914.2

16.218.221.2

insulationthickness

mm.

5.55.55.5

5.55.55.55.5

5.55.55.5

nominaloverall

diameterD

mm.

55.658.060.5

64.868.672.174.8

79.084.290.7

maximumoverall

diameter

mm.

58.160.563.0

67.371.174.677.3

81.586.793.2


mm.

780814848

909962

10111049

110811801271


kg/km

Cu

881103612171464

1777205223892765

33694016502661487328

Al

––917

1044

1206133214891655

19292217262731493550

Cu

34834100480157196675

78808975

104441257314967

Al

––

390144594962

57206275711482539570

Cu

475153656072

716283299470

10676

121561448616965

Al

––

5172

5902661673107976

88261016511568


mm2

1x 251x 351x 501x 70

1x 951x1201x1501x185

1x2401x3001x4001x5001x630


mm2

3x 253x 353x 503x 703x 95

3x1203x1503x1853x2403x300


mm2

3x 253x 353x 50

3x 703x 953x1203x150

3x1853x2403x300


19





Cu

150176206252300

342380430502562

Al

––

160198235

266298338390440

Cu

117136162198235

267298336387436

Al

––

126155182

208232264302341

Cu

144178206262315

362408468551632

Al

––

164203246

282320366432495

ground laying


Cu

150178208

256300342381

432495552

Al

––

162

199236267300

337391437

Cu

119140162

200234267297

335383428

Al

––

127

156183209232

263303401

Cu

140172201

250302348390

447522597

Al

––

160

197236274309

350412472

ground laying


Cu

158190225273

328374416472

545612690777873

Al

––

174213

257293326369

428483550628712

Cu

152184218267

314358404456

528596675762857

Al

––

168208

247280315358

415470536612698

Cu

124147174210

250284314356

409458513577647

Al

––

134164

195221247279

322362412462426

Cu

116140167204

242274306346

398447503568638

Al

––

130158

189214239269

311352401455519

Cu

176213255321

391451510586

690791910

10521192

Al

––

202250

306354404462

547630730852967

Cu

157192229286

348400451520

615707818946

1088

Al

––

178222

270312354408

482554647754878

ground laying


• • • • • ••

• • •

• • • • ••

• •


mm2

1x 251x 351x 501x 70

1x 951x1201x1501x185

1x2401x3001x4001x5001x630


mm2

3x 253x 353x 503x 703x 95

3x1203x1503x1853x2403x300


mm2

3x 253x 353x 50

3x 703x 953x1203x150

3x1853x2403x300


20



SINGLE-CORE RG7H1R-15/20 kV - ARG7H1R-15/20kV


conductordiameter

d

mm.

7.08.29.9

11.512.914.2

16.218.221.2

insulationthickness

mm.

6.56.56.5

6.56.56.5

6.56.56.5

nominaloverall

diameterD

mm.

57.259.763.8

67.670.673.8

78.082.889.7

maximumoverall

diameter

mm.

59.261.765.8

69.672.675.8

80.084.891.7


mm.

802837895

948990

1035

109411611257


kg/km

conductordiameter

d

mm.

7.08.2

9.911.512.9

14.216.218.2

insulationthickness

mm.

6.56.5

6.56.56.5

6.56.56.5

nominaloverall

diameterD

mm.

69.265.4

69.573.376.3

79.584.288.5

maximumoverall

diameter

mm.

65.467.9

72.075.878.8

82.086.791.0


mm.

882917

97510281070

111511801240


kg/km

Cu

465053026315

742684479652

111021304415752

Al

–44025055

571362876952

77728724

10355

conductordiameter

d

mm.

7.08.29.9

11.5

12.914.216.218.2

21.223.427.330.5

insulationthickness

mm.

6.56.56.56.5

6.56.56.56.5

6.56.56.56.5

nominaloverall

diameterD

mm.

27.328.530.632.2

33.634.936.938.9

42.344.548.652.4

maximumoverall

diameter

mm.

29.330.532.634.2

35.636.938.940.9

44.346.550.654.4


mm.

384400430452

472490518546

594625 682 735


kg/km

Cu

1120130215821873

2154247628733444

4140511862137544

Al

–100211621302

1434157617632004

2341271932143765

Cu

60536773

78849087

10181

114611311315072

Al

–5873

662473748021

87619783

10750


mm2

1x 351x 501x 701x 95

1x1201x1501x1851x240

1x3001x4001x5001x630


mm2

3x 353x 503x 70

3x 953x1203x150

3x1853x2403x300


mm2

3x 353x 50

3x 703x 953x120

3x1503x1853x240


RANGE AND DIMENSIONS - MEDIUM TENSION

21




Cu

175206 250

300340380

430498560

Al

–161195

232267298

337390441

Cu

137162196

134266297

337388437

Al

–126154

182208233

262302342

Cu

179210260

315360406

468551632

Al

–164204

247284320

366430490

ground laying


Cu

176205

250302342

380427493

Al

–162

196235268

299337389

Cu

140162

199235268

296334384

Al

–128

156184208

232263304

Cu

172204

252305347

389447527

Al

–160

197237271

305350410

ground laying


Cu

188224272326

370415470543

610688778873

Al

–174212256

290326369429

483550626713

Cu

182215263314

360401456527

593672761856

Al

–169205247

281315357415

468535611695

Cu

147170210248

284316355408

457514578648

Al

–134165195

222247279321

361412468530

Cu

142167204242

275306345398

448506570640

Al

–130158189

213240271312

352402457520

Cu

210252316386

446506581682

782897

10321169

Al

–198248302

354398452542

618720837950

Cu

192230285347

401452522616

706813941

1082

Al

–177223270

312354406482

551643752874

ground laying


• • • • • ••

• • •

• • • • ••

• •


mm2

1x 351x 501x 701x 95

1x1201x1501x1851x240

1x3001x4001x5001x630


mm2

3x 353x 503x 70

3x 953x1203x150

3x1853x2403x300


mm2

3x 353x 50

3x 703x 953x120

3x1503x1853x240


22

conductordiameter

d

mm.

7.08.29.9

11.512.914.2

16.218.221.2

insulationthickness

mm.

8.08.08.0

8.08.08.0

8.08.08.0

nominaloverall

diameterD

mm.

63.867.070.7

74.577.980.7

85.489.796.1

maximumoverall

diameter

mm.

65.869.072.7

76.579.982.7

87.491.498.1


mm.

895940991

104510921131

119712571347


kg/km

conductordiameter

d

mm.

7.08.29.9

11.5

12.914.216.218.2

insulationthickness

mm.

8.08.08.08.0

8.08.08.08.0

nominaloverall

diameterD

mm.

69.272.776.480.2

83.686.490.795.0

maximumoverall

diameter

mm.

71.775.278.982.7

86.198.993.297.5


mm.

970101910711124

1172121112711332

Cu

547264147423

86019737

10953

125491472117131

Al

–55146163

688875778253

92191040111734

conductordiameter

d

mm.

7.08.29.9

11.5

12.914.216.218.2

21.223.427.330.5

insulationthickness

mm.

8.08.08.08.0

8.08.08.08.0

8.08.08.08.0

nominaloverall

diameterD

mm.

30.731.933.635.2

36.637.940.342.3

45.747.952.255.4

maximumoverall

diameter

mm.

32.733.935.637.2

38.639.942.345.3

47.749.954.257.4


mm.

431450480500

512530565590

635670730775


kg/km

Cu

1313156818412142

2434278632183857

4527556967357939

Al

–126814211571

1714188621082417

2728317037364161


kg/km

Cu

699080619156

10430

11644129301454716817

Al

–716178968717

9484102301121712497


mm2

1x 351x 501x 701x 95

1x1201x1501x1851x240

1x3001x4001x5001x630


mm2

3x 353x 503x 70

3x 953x1203x150

3x1853x2403x300


mm2

3x 353x 503x 703x 95

3x1203x1503x1853x240






23

Cu

175204251

299340377

428495562

Al

–160193

233266296

335390440

Cu

131162197

234268298

337387436

Al

–128155

182209233

264305342

Cu

178210260

315361406

466546626

Al

–164203

246280318

365429492

ground laying


Cu

175206252298

340378427490

Al

–161196233

265297336388

Cu

140163198234

267296334384

Al

–127156184

210233263303

Cu

172203251303

346389445522

Al

–158197238

271305350412

ground laying


Cu

187221272324

369412466538

605683775873

Al

–173210255

290323366424

480546623712

Cu

180214263312

358401452524

592670760859

Al

–167205244

280312354412

465533610696

Cu

145172210249

282314354409

458515580649

Al

–133163195

220246278321

363412469530

Cu

142167204241

274305344397

447505571643

Al

–131157188

213238269312

352402459523

Cu

213255317386

445504581680

775895

10291168

Al

–198247302

348395454534

615714829950

Cu

191230285347

401452521614

703814942

1083

Al

–177223270

311354405480

551643749875

ground laying


• • • • • ••

• • •

• • • • ••

• •


mm2

1x 351x 501x 701x 95

1x1201x1501x1851x240

1x3001x4001x5001x630


mm2

3x 353x 503x 70

3x 953x1203x150

3x1853x2403x300


mm2

3x 353x 503x 703x 95

3x1203x1503x1853x240






24





conductordiameter

d

mm.

9.911.5

12.914.216.2

insulationthickness

mm.

1010

1099

nominaloverall

diameterD

mm.

81.084.8

87.886.390.6

maximumoverall

diameter

mm.

84.087.8

90.889.393.6


mm.

11361188

123012101270


kg/km

conductordiameter

d

mm.

9.911.5

insulationthickness

mm.

1010

nominaloverall

diameterD

mm.

87.090.3

maximumoverall

diameter

mm.

90.093.3


mm.

12201265

Cu

888210116

113531177113223

Al

76228405

919190719893

conductordiameter

d

mm.

9.911.512.9

14.216.218.2

21.223.427.330.5

insulationthickness

mm.

101010

999

9999

nominaloverall

diameterD

mm.

37.739.341.1

40.442.444.4

47.850.054.358.0

maximumoverall

diameter

mm.

40.041.643.4

43.045.047.0

50.352.556.860.5


mm.

560570590

580600640

680720790820


kg/km

Cu

1087812106

Al

961810395


kg/km

Cu

201023172651

282832383795

4547553865738040

Al

159017471931

192821282355

2748313935744262


mm2

1x 701x 951x120

1x1501x1851x240

1x3001x4001x5001x630


mm2

3x 703x 95

3x1203x1503x185


mm2

3x 703x 95


25





Cu

264317360

401450521

585660741847

Al

205246280

315356413

466534603792

Cu

257307350

390442512

576654740836

Al

200240272

306347402

453520593676

Cu

204242276

305345396

443498558636

Al

161192217

241271314

352398450517

Cu

199236268

299338391

438496558631

Al

156185210

236265307

345392447509

Cu

318384444

502575674

768880

10131177

Al

248302347

396454531

611708821960

Cu

285346397

448516608

697807934

1069

Al

221270311

352404477

547638743865

ground laying


• • • • • ••

• • •

• • • • ••

• •

Cu

240289

326367415

Al

189225

256287326

Cu

194230

261291329

Al

152180

205227258

Cu

256308

354398457

Al

201240

276313357

ground laying


Cu

244290

Al

189227

Cu

193230

Al

150181

Cu

263316

Al

205247

ground laying



mm2

1x 701x 951x120

1x1501x1851x240

1x3001x4001x5001x630


mm2

3x 703x 95

3x1203x1503x185


mm2

3x 703x 95


26

Three-cores cablesSingle-core cables

Single-core cables

aluminium cond.

––––

0.8180.5660.4090.3220.2650.2110.1630.1330.1060.08530.0704

all voltages

copper cond.

2.351.480.9370.6750.4990.3440.2500.1980.1630.1300.1000.08150.06580.0536

aluminium cond.

––––

0.8180.5650.4100.3250.2640.2130.1640.1340.1080.0879

all voltages

d d

n o m i n a larea

c o n d u c t o rmm2

10162535507095

120150185240300400500630

A P PARENT ELECTRIC RESISTANCE OF THE CONDUCTOR (Ohm/Km) AT 50Hz AND AT 90°C

CAPACITY VALUES AT 50 Hz (µF/Km)

copper cond.

2.351.480.9360.6750.4990.3450.2500.1970.1620.1300.09950.08050.06440.05210.0429

n o m i n a larea


10162535507095

120150185240300400500

copper conductors aluminium conductors

1.8/3 kV3.6/6 kV

2.351.490.9370.6740.5000.3450.2490.1980.1610.1270.09840.07890.06240.04960.0395

1.8/3 kV3.6/6 kV

––––

0.8180.5660.4090.3230.2630.2100.1600.1300.1020.08120.0649

6/10 kV8.7/15 kV

––––

0.8180.5660.4090.3230.2630.2100.1600.1300.1020.08100.0646

12/20 kV15/20 kV18/30 kV

––––

0.8180.5660.4090.3230.2630.2100.1610.1300.1020.08120.0649

6/10 kV8.7/15 kV

2.351.480.9360.6760.4990.3450.2480.1970.1610.1270.09830.07870.06240.04950.0394

12/20 kV15/20 kV18/30 kV

––

0.9360.6760.4990.3450.2480.1970.1610.1270.09820.07880.06230.04940.0393

26/45 kV

–––––

0.3450.2480.1970.1610.1270.09810.07860.06220.04910.0391

26/45 kV

–––––

0.5660.4090.3230.2630.2100.1610.1290.1020.08050.0645

n o m i n a larea


10162535507095

120150185240300400500630

8.7/15 kV

–0.150.180.190.210.230.260.290.310.330.370.430.450.510.57

12/20 kV

––

0.170.170.180.210.230.250.270.290.320.350.390.430.49

15/20 kV

–––

0.150.170.190.200.210.240.260.270.310.340.380.43

18/30 kV

–––

0.140.150.190.180.190.200.210.240.270.290.320.36

26/45 kV

–––––

0.140.160.170.190.210.230.250.280.300.33

6/10 kV

0.160.180.210.230.250.290.320.360.370.420.470.520.560.640.73

3.6/6 kV

0.210.230.260.290.340.390.430.470.500.550.630.660.690.790.88

1.8/3 kV

0.250.280.330.370.420.480.500.550.590.650.750.820.850.911.02

n o m i n a larea


10162535507095

120150185240300400500630


27

Single-core cables

Three-cores cables

Single-core cables (average value)

PHASE REACTANCE VALUES AT 50 Hz (0hm/km)

d d

6/10 kV

0.210.200.190.190.180.170.170.160.160.160.160.150.150.150.15

1.8/3 kV

0.190.180.180.170.160.160.160.150.150.150.140.140.140.140.14

12/20 kV

––

0.210.200.190.190.180.180.170.170.160.160.160.150.15

15/20 kV

–––

0.200.200.190.180.180.180.170.170.160.160.160.15

18/30 kV

–––

0.210.200.200.190.180.180.180.170.170.160.160.16

3.6/6 kV

0.200.190.180.180.170.170.160.160.160.150.150.150.150.140.14

26/45 kV

–––––

0.210.200.190.190.180.180.170.170.170.16

8.7/15

–0.210.200.190.190.180.170.170.170.160.160.160.150.150.15

n o m i n a larea


10162535507095

120150185240300400500630

6/10 kV

0.160.150.140.130.120.120.110.110.100.100.0970.0950.0910.0890.087

1.8/3 kV

0.130.120.120.110.110.100.0980.0950.0910.0890.0860.0840.0820.0810.079

12/20 kV

––

0.150.140.130.130.120.120.110.110.110.100.0980.0960.093

15/20 kV

–––

0.150.140.130.130.120.120.110.110.110.100.0980.096

18/30 kV

–––

0.160.150.140.130.130.120.120.110.110.110.100.098

3.6/6 kV

0.140.140.130.120.110.110.100.100.0980.0940.0910.0890.0870.0830.082

26/45 kV

–––––

0.150.140.140.130.120.120.120.110.110.10

8.7/15

–0.150.140.140.130.120.120.110.110.110.100.0980.0960.0920.090

n o m i n a larea


10162535507095

120150185240300400500630

6/10 kV

0.140.130.120.110.110.100.0970.0940.0910.0870.0850.0840.0820.078

1.8/3 kV

0.110.100.0970.0930.0870.0840.0810.0790.0770.0750.0740.0720.0710.070

12/20 kV

––

0.140.130.120.110.100.100.100.0970.0940.092

––

15/20 kV

–––

0.130.130.120.110.110.110.100.0980.096

––

18/30 kV

–––

0.140.130.130.120.120.110.110.100.10

––

3.6/6 kV

0.120.120.110.100.0960.0920.0880.0860.0840.0820.0790.0770.0750.074

26/45 kV

–––––

0.140.130.130.120.11

––––

8.7/15

–0.140.130.120.120.110.100.100.0970.0940.0900.0880.086

–

n o m i n a larea


10162535507095

120150185240300400500


28

THREE-CORES CABLES AIR LAY I NG

THREE-CORES CABLES (OR SINGLE-CORE CABLES ENCLOSED IN TREFOIL) GROUNDED PIPE LAY I N G

THREE-CORES CABLES (OR SINGLE-CORE CABLES ENCLOSED IN TREFOIL) GROUNDED LAYING

AMBIENT TEMPERATURE DIFFERENT FROM STANDARD CONDITIONS

* Not exposed to direct sunlight

15

1.04

–

20

1.00

1.09

25

0.96

1.09

30

0.92

1.00

35

0.88

0.95

40

0.84

0.90

45

0.80

0.85

50

–

0.79

55

–

0.74

60

–

0.67

65

–

0.60

Number of cables or trefoil-set (horizontally)

Space between cables or trefoil-sets

7 cm

25 cm

2

0.84

0.86

3

0.74

0.78

4

0.67

0.74

6

0.60

0.69

Number of cables (horizontally) 1

0.82

2

0.69

3

0.61

Ambient temperature °C

Ground laying cables

Air Cables*

1.5 d

d

� 0.5 d

d d

~0,3 m

� 0.5 d

dd

d

d

� 1/3 d

~0,3 m

G ROUP RATING FAC TO R S

Number of cables (horizontally)


Number of layers(vertically)

9

0.84

6

0.85

3

0.88

2

0.90

1

0.95

Number of cables (vertically) 9

0.86

6

0.87

3

0.90

2

0.93

1

1.00

9

0.92

0.89

0.88

0.86

6

0.93

0.90

0.89

0.87

1

1.00

1.00

1.00

1.00

2

0.98

0.95

0.94

0.93

3

0.96

0.93

0.92

0.90

1

2

3

6



9

0.73

0.69

0.68

0.66

6

0.75

0.71

0.70

0.68

1

0.95

0.95

0.95

0.95

2

0.84

0.80

0.78

0.76

3

0.80

0.76

0.74

0.72

1

2

3

6

Number of cables (vertically) 9

0.66

6

0.68

3

0.73

2

0.78

1

0.95


1

0.89

2

0.86

Number of trefoil sets (vertically)

29

PHASE LAY-OUT FOR SINGLE-CORE CABLES CONNECTED IN PARALLEL TO PROVIDE CORRECTCURRENT SPLITTING

SINGLE-CORE CABLES AIR LAYING HORIZONTA L LY AND V E RT I C A L LY SPACED OUT

SINGLE-CORE CABLES TREFOIL AIR LAY I N G

3

1

0.92

2

0.89

4

0.97

Number of trefoil sets (horizontally)


1

2

3

1

1.00

0.97

0.96

2

0.97

0.94

0.93


1

0.94

2

0.91

Number of trefoil sets (vertically)

2 4Number of trefoil setsin the same layer*

2

RST TSR RST TSR RST TSR

4Number of trefoil setsin the same layer*

Trefoil laying cables

Horizontally or vertically spaced-out cables

*When cables are installed on several layers their lay-out must be repeted for each layer.

d

2 d� 0.5 d

d

2 d� 0.5 d

~0,3 m

� 0.5 d

d d

~0,3 m

� 0.5 d

d d

� 1/3 d

d

d

d

d

TRS

TRS

TSR

TSR

TRS

TSR

TRS

TRS

TSR

G ROUP RATING FAC TO R S


9

0.84

6

0.85

3

0.88

2

0.90

1

0.95



6

0.92

0.89

0.88

0.86

4

0.93

0.90

0.89

0.87

1

1.00

1.00

1.00

1.00

2

0.98

0.95

0.94

0.93

3

0.96

0.93

0.92

0.90

1

2

3

6


30

Nominalvoltage kV

Uo/U

1.8/33.6/66/10

8.7/15

12/2018/3026/45

Copper

1.42.33.65.07.1

1014172126

3443577290

SHORT CIRCUIT RATING

VOLTAGE DROP

COMPARISON BETWEEN RATED VOLTAGES AND INSULATION RATE

K factor (final temperature = 250°C)

To calculate the current allowed in the screen you canuse the same fo rmula indicated above for theconductor with the factor K = 180°C.

The following table reports the values in KAof the current calculated for the startingtemperature of 90°C and for the duration of1 second.

Uo = relates to the nominal tension between a conductorand earth

U = relates to the nominal tension between the conductors of the cable

Um = greatest tension which the cable is suitable

Starting temperature

Area conductor

mm2

1016253550

7095

120150185

240300400500630

Aluminium

0.91.52.33.24.6

6.48.7

111417

2228374658

K SIcc =

� t(A)

.

The voltage drop can be calculated by the following formula for connections in alternating current:

where:∆V = voltage drop (V)K = 1,73 for three-phase systemK = 2 for single-phase systemL = connection length (km)I = current rating (A)R = conductor resistance at using temperature (Ohm/km)X = phase reactance (Ohm/km)cosø = power factor

For direct current connection cosø =1

∆V = K . L . I (R . cosø + X . senø)

Material

Conductor

copper

aluminium

50

165

107

70

154

100

90

143

92

ELECTRICAL FORMULAS

The maximum short circuit current allowed for short period of time (a few seconds) for copper or aluminiumconductors can be calculated by the fo l l owing fo rmu l a :

where:Icc = short circuit current (A)K = factor of the conducting material

which obtained from the difference between starting and final temperature of short circuit;K copper = 143K aluminium = 92

S = area conductor (mm2)t = duration of short circuit (sec.)

Insulationrate

8111724

324767

Maximumvoltage kV

Um

3.67.212

17.5

243652


The final tests to which the Medium Vo l t age c a bles are subjected are in compliance with IEC 60502-2 standard.

Routine tests• Electrical resisistance of conductor• Partial discharge on cables having cores with conductors screens and insulation screens• Voltage test

Sample tests• Conductor examination• Chek of dimensions• Voltage test for cable of rated voltage above 3,6/6 (7.2) kV• Hot set test for EPR, HEPR and XLPE insulations and elastomeric sheaths

Electrical type tests• Partial discharge test• Bending test • Tanδ measurement• Heating cycle test• Impulse test• Voltage test

Non-electrical type tests• Thickness of insulation• Thickness of non-metallic sheaths• Mechanical properties of insulation before and after ageing• Mechanical properties of non-metallic sheaths before and after ageing• Additional ageing test of completed cables• Loss of mass test on PVC sheaths of type ST2

• Pressure test at high temperature on insulation and non-metallic sheaths• Test on PVC insulation and sheaths at low temperatures• Test for resistance of PVC insulation and sheaths to cracking (heat shock test)• Ozone resistance test for EPR anf HEPR insulations• Hot set test for EPR, HEPR and XLPE insulation and elastomeric sheaths• Oil immersion test for elastomeric sheaths• Water absorption test on insulation• Flame retardance test• Carbon black content of black PE oversheath• Shrinkage test for XLPE insulation• Thermal stability test for PVC insulation• Determination of hardness of HEPR insulation• Determination of elastic modulus of HEPR insulation• Shrincage test for PE oversheaths• Strippability test for insulation scren• Water penetration test

Electrical tests after installationTests after installation are made, if required, when the installation of the cable and its accessories has beencompleted. They are for new installations only.• d.c. voltage equal to 4 Uo shall be applied for 15 min.

As an alternative, and by agreement between the contractor and purchaser, an a.c. voltage tes at power fre-quency, in accordance with indicated below:• test for 5 min. with the phase-to-phase voltage of the system applied between the conductor and the metal-lic screen;• test for 24 hours with the normal operating voltage of the system.

31

FINAL TESTS

Insulation rated voltage

Uo kV

3.03.66.08.7

121826

Electrical tests after installation in c.c. for 15’

kV

1214.42434.8

4872104


32

STORAGE AND HANDLING

The drums storage and movement shall be carried out with crane or forklift truck. It is not allowed to drop drumsfrom the truck to the floor. All cables during transport and handling can be demaged so we suggest to verifybefore and during installation procedure any possible demage to avoid heavy problems during cable workinglife. For the benefit of the workers involved in electrical work is absolutely necessary to observe some safetyrules normaly indicated on the local still in force standards.Do not remove staves and cable end caps until the cable will be laid down. If you cut a piece of cable leavingthe rest in a open stock put on again ends protections. Unwind and rewind cables as shown in the pictures. Incase of transfering from one drum to an other remember the minimum bending cable radius and consequentlythe barrel drum diameter.

INSTALLATION

We summarize some rules to be observed during the installation of MV cables for fixed layng. In order to pro-vide easy operations we suggest do not work at cable temperature below than 5°C. Cables bending radius areindicated in Range and Dimensions tables and they must be to value carefully. For unarmoured cables and inorder to pull cable inside pipes or trench it is advisable to apply the pool force on the conductors being carefuldo not exceed 5 kg/mm2 of total area for copper cables and 3 kg/mm2 for aluminium cables.

Example:copper cable 1 x 240 mm2: max pull force kg 1200 aluminium cable 1 x 240 mm2: max pull force kg 720copper cable 3 x 240 mm2: max pull force kg 3600 aluminium cable 3 x 240 mm2: max pull force kg 2160

For steel cable armour the strain rope will be applied to the armour while the pool force by steel braid is advi-sable only for limited efforts.If there are curves along the lay route must be placed a sufficients conveyers, for example at the entrance ofpipes, suitable to keep the cable in the right direction line in order to avoid to exceed the maximum pulling loadallowed.

Concerning overhead cables any strain will be charged on the supporting rope for installaion operations andduring working time.

wrong correct wrong correct

A A A A

B B B B

correct

wrong wrong wrong wrong

correct

correct correct


33

Besides data reported in this booklet is always important to consider the effects of thermal dissipation.All installations in parallel trefoil must be realized with maximum care in order to aim the most balanced char-ge distribution on the cables connected to the same phase.Therefore please consider the following infomation:

• all cables must have the same metal conductors• all cables must have the same lenght and section• the bundle cables must be made-up following R, S and T phases system as indicated on page 29• the cables must be properly spaced • right and balanced connections to the cables terminals

PACKAGING

How to draw the cable

correct correct

correct

wrong

HOW TO SELECT THE DRUM

Example:1 - kind cable RG7H1R-12/20 kV 1x240 mm2 see page 18

overall cable diameter mm 39.1 a round figure mm 40minimum bending radius mm 560cable quantity mt 500

2 - determination of drum barrel diameter = mm 560 x 2 = 1120 mm consequently qualified drums areB L 1 8 0 / 2 0 0 / 2 2 0 / 2 5 0 .

3 - outcome = following above practice the more convenient drum able to contain mt 500 is BL 180

DRUMS CAPACITY (meters)

17758

10963

7435

5372

4062

3179

2555

1859

1343

1015

795

639

525

439

372

320

277

243

215

195

178

13901

8582

5820

4205

3180

2488

2000

1455

1051

795

622

500

411

343

291

250

217

190

168

153

139

8320

5137

3484

2517

1903

1489

1197

871

629

476

372

299

246

205

174

150

130

114

101

91

5991

3698

2508

1812

1370

1072

862

627

453

343

268

215

177

148

125

108

94

3441

2124

1441

1041

787

616

495

365

260

197

154

124

102

5248

3240

2197

1588

1200

939

755

549

397

300

235

189

155

130

110

94

2041

1260

855

617

467

365

294

202

154

117

91

994

614

416

301

227

178

143

104

75

130

3

805

546

394

298

233

188

136

99

769

475

322

233

176

138

111

80

446

275

187

135

102

80

Cable

diameter

mm

DRUM TYPE

BL60 BL70 BL80 BL90 BL100 BL120 BL140 BL160 BL180 BL200 BL220 BL250

11896

7344

4981

3599

2721

2129

1712

1245

900

680

532

428

351

294

249

214

186

163

144

131

119

11

14

17

20

23

26

29

34

40

46

52

58

64

70

76

82

88

94

100

105

110


34

DRUM

TYPE

Battenweight

Kg

11

16

21

23

30

42

56

75

106

121

135

148

Global

volume

m3

0.17

0.25

0.34

0.42

0.62

1.10

1.60

2.40

3.70

4.50

5.60

6.50

435

515

575

575

685

760

920

1.070

1.320

1.320

1.320

1.320

F

mm

BL60

BL70

BL80

BL90

BL100

BL120

BL140

BL160

BL180

BL200

BL220

BL250

690

770

860

960

1.060

1.310

1.460

1.660

1.860

2.060

2.300

2.510

630

710

800

900

1.000

1.250

1.400

1.600

1.800

2.000

2.240

2.450

315

355

400

450

500

630

710

900

1.120

1.250

1.400

1.500

80

80

80

80

80

80

80

80

80

125

125

125

315

400

450

450

560

630

750

900

1.120

1.120

1.120

1.120

15

20

25

36

44

77

113

182

319

387

478

560

A

mm

B

mm

C

mm

D

mm

E

mm

Drumweight

Kg

A - Flange diameter including circumference battenB - Flange diameter without circumference battenC - Inner barrel diameterD - Axis holeE - Inner widthF - External width

DRUMS DIMENSION

ABC

E

FD

A

NOTEThe data belong to the standard wooden drums daily in force in all Tratos Cavi facilities. Neverthless for uncom-mon cable lengths there are available very large wooden and metallic drums. In this cases transport resctric-tions have to be considered like special law-loading trailers and permits from traffic authorities in accordancewith local regulations.


35

GLOSSARY

A . C . - A l t e rnating current in which the charge-flowp e riodically reve r e s

Accesories - Components necessary to cabl e sn e t wo rk connection

Aluminium conductor - An aluminium wire or gr o u pof wires

Aluminium screen - Usually a longitudinal smooth orc o r rugated aluminium tape ove rlapped andt h e rm o s e a l e d

AWG - A m e rica Wire Gauge

Bending radius - M i n i mum bending radius a cabl ecan be bent without permanent demage

BS - B ritish Standard (UK)

C a ble tray - A channel system used to hold ands u p p o rt power cabl e

C a ble pipe - A pipe used to contain power cabl e

Capacitance - The value of the capacity of a dielectri cm a t e rial between two conductors

CEI - Comitato Elettrotecnico Italiano

Compacted conductor - Ansure regular conductordiameter avoiding stress to insulation laye r

Conductor losses - Power losses due to theresistance of conductors

Conductor screen - An ex t rusion layer direct on thec a ble conductor of a semi-conductin material top r ovide regular distri bution of electrical stress

Copper conductor - A copper wire or group of wires

Copper screen - O ve rlapping spira l - wound coppertapes or copper wires to coil up

Dielectric - G e n e rally a non metallic material with highr e s i s t i v i t y

Dielectric costant - The relation between the chargeby a condenser with dielectric material and va c u u m

D. C . - Direct current

Dielectric losses - Power losses due to theconductance of dielectric materi a l s

Dielectric strenght - M a x i mum voltage gradient that am a t e rial withstand

Embossing code - Raised cable code on theo u t e r s h e a t h

Electrical resistance - The resistance of the materi a l sto the flow of current (Ohm/km)

Electrical metal screen - A metal shield againstex t e rnal fields, need to equalize electric fields

E l e c t ro m agnetic compatibility - The capability ofd i f ferent electrical system to coexist withouti n t e r fe r e n c e s

Electrical gradient - The sheare of dieletrical strenghtexpress in kV/mm

Filler - Mass of material to fill layng cores interstices inorder to provide an appro ximate round shape cabl e,through ex t rusion or by different elementsa s s e m bled together cores

F r e q u e n cy - The number of cycles (hertz) of ana l t e rnating current in one second

HEPR - High ethylene propylene ru bb e r

IEC - I n t e rnational Electrotechnical Committee

Insulation - D i e l e c t ric laye r

Insulation screen - An ex t rusion layer direct on thec a ble insulation of a semi-conducting material whichu n i fo rm radial stress distri bution across insulation

J a cket - The outer protective cove ring of a cabl e

Joints - A c c e s s o ry suitable to joint two cabl e s

L aying depht - Installation depht trench

Lug - A c c e s s o ry suitable to connect a cable conductorto the netwo rk

Metallic armour - Additional mechanical cabl eprotection usually covered by a plastic laye r

M1 - LS0H low smoke and zero halogen

MT - Medium tension

MV - Medium vo l t a g e

NF - N o rme Française (F)

Phase lay-out - System to provide a corretc currents p l i t t i n g

PE - Po l ye t y l e n e

Plain conductor - Mean a conductor of only onem e t a l

Print code - Ink print cable code in the outersheath

PVC - Po l y v i nyl chlori d e

Reactance - The opposition to the flow of altern a t i n gcurrent by inductance or capacitance

Resistivity - A conductor electric resistance

Semiconductor - A material with lower electri c a lresistance than a dielectric materi a l

Sheath - The outer protective cove ring of a cabl e

S h o rt circuit current - B r e a k d own due tempera t u r eri s e

Single core - One phase cabl e

System - N e t wo rk

Terminations - A c c e s s o ry suitable to connect a cabl eto the netwo rk

Tr e foil - L ay-out of three sigle cabl e

Three cores - Three phases cabl e s

Uo kV - Nominal tension between any insulatedconductor to eart h

U kV - Nominal tension between two insulatedconductor of the cabl e

Um kV - M a x i mum tensione which the cable iss u i t a bl e

UNE - Unificación de Normas Españolas (E)

VDE - Verband der Elektrotechnik (D)

Vo l t age drop - Rduced voltage in the circuit

XLPE - C r o s s - l i n ked polye t hy l e n e


Tratos Cavi S.p.A. reserves the right to modify at any time technical dimensional and

weight characteristics shown in this catalogue to improve the features of its products.

However these will still be in accordance to the mentioned standards.

There is no responsibility of the manufacturer for damages to persons and property

in case of improper use and/or neglecting the recommendations for using cables

and norms contained in this catalogue.

Kama May 2009


ALMA S.r.l.Via Stadio, 252036 Pieve S. Stefano - ItalyTel. +39 0575 7941Fax +39 0575 798026

TRATOS CAVI S.p.a.Via Stadio, 252036 Pieve S. Stefano - ItalyTel. +39 0575 7941Fax +39 0575 [email protected]

TRATOS CAVI S.p.a. filiale CataniaXIII Str. Strad. V.LanciaLoc. Piano D’Arci95121 Catania - ItalyTel. +39 095 7482101Fax +39 095 291059

TRATOS H.V. S.p.a.Via Pian di Guido, 4552036 Pieve S. Stefano - ItalyTel. +39 0575 799429Fax +39 0575 796907

TRATOS LtdUK - Park RoadHolmewood Industrial ParkHolmewood - ChesterfieldDERBYSHIRE S42 5UWTel. +44 01246 858000Fax +44 01246 858001

NORTH WEST CABLES LtdSchool lane, KnowsleyMerseyside L34 9HDTel. +44 01515 483888fax +44 0151 549 1169

TRATOS CAVI Iberica S.L.SpainPaseo de los Parques 6, bloque 6, 1D28109 Alcobendas (Madrid)Tel./ Fax +34 91 6255887

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