AEI LinkeX Cross-linked Polyethylene Insulated Power Cables

6{OO x (CXJO -

{,GCD-x.. I, 7-~2- -

- - -- ---l---

--/0(0

---t------- -- -

-- I/rf,--I--_K It __

+-- V K- /3~ ~ - -

------ -----

_-_-1- --jt0!2 't/tsY -_-i h- ~r% ~

----1----

AEILinkeXCross-linked Polyethylene Insulated

Power Cables

Associated Electrical Industries LimitedPower Cable DivisionCrete Hall RoadGravesend Kent DA 11 9AFTelephone - Gravesend (STD 0474) 564466

International + 44 474564466Telex - 25829 AEI GEe GFax -0474325032

Your ref. Our ref. Tel ext

This is a temporary LinkeX cataloguewe are in the process of producing anupdated version.

If you would like to receive a copywhen they are ready. Either writeto me Ann Marsh (Mrs) at the aboveaddress, or telephone and ask forextension 3507. If you are on ourmailing list you will automaticallyreceive a copy.

The high voltage cable dimensionsand electrical characteristics in thispublication are based on lEe 502,although this information is notobsolete our current manufacturingdesign is based on B.S. 6622, and weare still issuing this catalogue as areference until the new version isavailable.

If you have any queries regarding thiscatalogue, telephone our engineers onthe above number. They will be pleasedto discuss them with you.

~~'rII WIOMAI.ICCRIOIIAIIO~I,IRIIIIC~1I0N

.•. ~ ~ BOOIIS Registered at London No. 62919Registered Office: 1 Stanhope Gate. London W1A 1EH

A member of the ~ Group of Companies8S575O PARTl 1987

ISO 9001 - 1987Er~ 29001 - 1987

CERTIFICATE 0 FM 10607

AEI LinkeX· Power Cables• LmkeX IS the Registered Trede Nj. ··e

of AEI Cables Ltd. denottnq ceot«:having cross-linked polyethyleneinsulation.

CONTENTSINTRODUCTION

600/1000Y and 1.9f3.3kY LinkeX CablesSpecification

Technical data tables:600/1000Y

1.9f3.3kY6.35/11 kY LinkeX Cables

SpecificationTechnical data tables

19f33kY LinkeX CablesSpecification

Technical data tablesTables of adjustment factors

Accessories recommended for AEI LinkeX up to 600/1000YAccessories recommended for AEI LinkeX up to 8.75/15kY

Accessories recommended for AEI LinkeX up to 1Qf33kYOverseas Representation

Information required with enquiry and OrderHealth and Safety at Work Act 1974

Page1

2-152

3-1112-1516-20

1617-202'-25

2122-2526-2931-33

3536-38

394040

------------------,Note:The Electrical Characteristics and Physical Dimensionsof LinkeX cable. also apply to the HaleX LSF range ofcabl.s .

.------

Published byAEI Cab'" Limited

Power Cable Dlvl.lonGr.we•• nd, Kent DA11 9AF

Telephone Gr.we_nd (STD 0474) 1184488Tele.211829

F•• 0474 325032201.F.

.AB:!:CABLES

Singie-core 600/1000 V Cable.with Stranded Copper conductor

Nominal Are8 of Conductor sq.rnrn 50 70 95 120 150 185 240 300 400 500 630Thickness of Insulation mm 1·0 ,., ,., 1·2 1·4 1 6 1 7 1·8 2·0 2·2 24

Unarmoured Thickness of Oversheath mm 1·4 1·4 1·5 1·5 1·6 1·6 1·7 1·8 19 20 2·2Cable Approximate Overall diameter mm 15 17 19 21 23 25 28 31 35 38 45

Approximate cable weight kg/km 600 800 1050 1300 1600 2000 2600 3200 4050 5050 6500Minimum bending radius mm 125 150 175 175 200 200 250 250 300 350 I 400

Armoured Thickness of Extruded mm 0·8 0·8 0·8 0·8 1 0 1·0 1·0 1·0 1·2 1 2 1·2Cable bedding Lapped mm 0·8 0·8 0·8 0·8 0·8 0·8 0·8 0·8 08 08 08

Armour wire diameter mm 0·9 1·25 1·25 1·25 1 6 1 6 1 6 1 6 20 20 20Thickness of oversheath mm 1'0 1·5 1·6 1·6 1·7 1·8 1 8 1 9 20 21 22Approx. overall Extrudeddiameter bedding mm 18 21 23 24 28 30 33 36 40 44 51

Lappedbedding mm 18 21 23 24 27 30 32 35 40 43 50

Approximate cable weight kg/km 700 1000 1250 1550 1900 2350 2950 3600 4600 5700 7250Minimum bending radius mm 150 175 200 200 250 250 300 300 350 400 450Maximum armour resistance Iat 20 C ohm/km 1·3 ·77 ·68 ·62 ·44 ·40 ·35 ·33 ·23 ·21 18

I

Gross armour wire area (min) sq.mrn 26 43 48 53 76 84 94 103 145 161 180

Unarmoured Maximum D.C. ator Armoured resistance of 20"C ohm/km ·387 ·268 ·193 ·153 ·124 ·0991 ·0754 ·0601 ·0470 ·0366 0283Cable conductor ·A.C. at I

90~C ohm/km ·493 ·341 ·246 ·196 ·159 ·128 ·0981 ·0792 ·0630 ·0505 0407---!

Unarmo rred ·Inductance mH/km 291 ·280 ·272 ·264 ·264 ·261 ·256 ·253 ·251 ·248 ·246Cable ·Reactance at 50 Hz ohm/km ·092 ·088 ·086 ·083 ·083 ·082 ·081 ·080 ·079 ·078 078 IImpedance at 90'C ohm/km ·502 ·352 ·261 ·213 ·179 ·152 ·127 ·113 ·102 ·099 ·088

·Voltage drop mV/A/m ·869 ·610 ·452 ·369 ·310 ·263 ·220 ·196 ·177 ·171 ·152 IArmoured *Inductance mH/km ·331 ·323 ·310 ·298 ·300 't.96 ·286 ·280 ·280 ·274 ·268 ICable "Reactance at 50 Hz ohm/km ·104 ·102 ·098 ·094 ·095 ·093 ·090 ·088 ·088 ·087 ·085

Impedance at 90'C ohm/km ·504 ·356 ·265 ·217 ·185 ·158 ·133 ·118 ·108 ·101 ·094"Voltage drop mV/A/m ·873 ·617 ·459 ·376 ·320 ·274 ·230 ·204 ·187 ·175 163

Unarmoured eSustained current laid direct amp 230 285 330 380 430 480 560 640 710 810 910Cable rating (based on in sinqle-

the standard way ducts amp 230 285 335 385 430 485 560 640 710 810 920I

conditions on in air 220 280 345 405 470 550 650 750 880 1020 1160amppage 2).

'Armoured laid direct amp 235 290 345 390 435 490 560 630 700 770 840Cable in single- , ~.

way ducts amp 235 280 330 370 405 440 500 550 580 620 670 •in air amp 235 300 365 425 485 560 660 750 860 960 1080

'Unarmoured Maximum for 0·2 sec kA 15·2 21·9 30'4 38·5 47·3 59·3 > 60 >60 >60 >60 >60or Armoured symmetrical for 1·0 sec kA 6·8 9·8 13·6 17·2 21-1 26·5 34·9 43·7 55·9 >60 >60Cable short-circuit for 3·0 sec kA 3·9 5·6 7·8 9·9 12·2 15·3 20·1 25·2 32·3 40·7 52·6

current rating

'Armoured Maximum earth- for 0·2 sec kA 4·7 7·6 8·7 9·4 13·9 15·2 17·0 18·3 25·9 28·8 32·4Cable fault short-circuit for 1·0 sec kA 2·1 3·4 3·9 4·2 6·2 6·8 7·6 8·2 11·6 12·9 14·5

current rating for 3·0 sec kA 1·2 2·0 2·3 2·4 3·6 3·9 4·4 4·7 6·7 7·4 8·4

"Cables in touching trefoil arrangement.

eCables in touching trefoil or trefoil ducts.

Not. 1 : Ratings for armoured cables assume armour is bonded at both ends of route.

Note 2: Short-circuit current ratings based on:Symmetrical, conductor temperature rise, 9O'C to 250·C.Earth fault, armour temperature rise. 85'C to 200·C.

3

AEI power cables

Twin-core 600/1000 V Cable with Stranded Copper Conductors

Nominal Area of ConductorThickness of Insulation

kAkAkA

sq.mm *16mm 0·7

21

250·9

21

350·9

24

5010

26

70,.,

29

95it

36 39 45

1·40·8252 5

2647 !

6500 I400

120 150 185 240 3001·2141·61·718

2·031

2650250

1·20·82·02'1

1·3126

·153

·196·231·073·210·420

395

335385

430

355430

38·517·29·9

11·95·33·1

2·234

3250300

1 20·8202·2

29 33 35 382300 3150 3750 4450250 300 300 350

1·825

1600200

1·00·81·61·9

2·080

·268

342·241·076·351·702

290

240265

315

260300

21·99·85·6

7·23·21·8

1 821

900200

1·00·81·61·7

241400200

2·562

·524

·668·246·078·6741 ·35

195

160175

215

175200

11 25·02·9

6·32·81·6

1 822

1150200

1·00·81·61·8

251750250

2·3 !70

·387

493·244077

'5001 ·00

230

195210

255

210240

15·26·83·9

6·52·91·7

1928

2150250

1·2082·02·0

33

1·4114

·193

·254·232·073·264·528

355

290335

380

310375

30·413'67·8

11·04·92·8

1 ·2139

'124

·159·233·074'176·352

445

380435

480

400490

47·321·112·2

13·25·93·4

2·338

4050350

1·40·82'52·4

435750400

·82196

128·233·074·148·296

510

425500

540

455570

59·326·515·3

18·88·44·8

2·543

5250350

UnarmouredCable

Thickness of OversheathApproximate overall diameterApproximate cable weightMinimum bending radius

mmmm

kg/kmmm

Thickness of extrudedbedding lappedArmour wire diameterThickness of OversheathApprox. overall Extrudeddiameter bedding

Lappedbedding

Approximate cable weightMinimum bending radiusMaximum armour resistanceat 20'C ohm/km

I Gross armour wire area (min) sq.rnrn

mmkg/km

mm

mmmmmmmm

mm

1 819

450175

0·80·81·251·5

21750175

3·835

1 ·819

700175

0·80·81·251·6

211050175

3·743

ArmouredCable

1 60·8 I2 5 '26 I

49 I 53 I

48 527150 I 8550 I400 450

73 67 I218 239

·0799·228072

·108·216

Unarmouredor ArmouredCable

Maximumresistance ofconductor

InductanceReactance at 50 HzImpedance at 90' CVoltage drop

D.C. at20'CA.C. at90'C

ohm/km

ohm/kmmH/km

ohm/kmohm/kmmV/A/m

1-15

1·46'260·0821·462·92

·727

·927'251·079·9311 ·86

·0991 ·0754 ·0601

·0988·231·073'123·246

UnarmouredCable

670

ArmouredCable

Sustained currentrating (based onthe standardconditions onpage 2).

laid direct ampin single-way ducts ampin air amp

120

105105

160

135140

590

490600

570690

laid directin single-way ductsin air

amp

"ampamp

140

115120

180

145160

630

520670

700

590770

'Unarmouredor ArmouredCable

Maximumsymmetricalshort-circuitcurrent rating

for 0·2 secfor 1·0 secfor 3·0 sec

5·12·21·3

8·13·62·0

> 6034·920·1

>6043·725·2

'ArmouredCable

Maximum earth-fault short-circuitcurrent rating

for 0·2 secfor 1·0 secfor 3·0 sec

ItAItAkA

4·01 ·81·0

'Circular conductors

Note': Short-circuit current ratinga based on:Symmetrical. conductor temperature rise. 9O'C to 250·C.Earth fault. armour temperature rise. 8S'C to 2oo·C.

4

4·01·81·0

20·89·35·4

22·610,15·8

ABXCABLES

Three-core 600/1000 V Cable with Stranded Copper Conductors

Nominal Area of Conductor sq.mm ·16 ·25 35 50 70 95 120 150 185 240 300Thickness of Insulation mm 0·7 0·9 0·9 1·0 1-1 1-1 1 2 1·4 1·6 1·7 1·8

UnarmoureCl Thickness of Oversheath mm 1·8 1·8 1·8 1·8 1·9 2'0 2·1 2,2 2·4 26 27Cable Approximate Overall diameter mm 20 23 22 25 29 33 37 40 45 51 55

Approximate cable weight kg/km 650 1000 1250 1650 2300 3100 3900 4750 5950 7750 9600 IMinimum bending radius mm 175 200 200 200 250 300 300 350 400 450 450

Armoured Thickness of Extruded mm 0·8 ',0 '·0 1·0 1·0 1·2 1·2 1·4 1·4 1 4 1·6Cable bedding Lapped mm 0·8 0·8 0·8 0·8 08 0·8 0·8 0·8 0·8 0·8 0·8

I Armour wire diameter mm , ·25 , 6 1·6 1·6 1·6 2·0 20 2·5 2 5 25 I 2 5Thickness of oversheath mm '·6 1·7 '·B 1,8 19 2·1 22 2·3 2'4 I 26

I2·7

Approx. overall Extrudeddiameter bedding mm 22 27 26 29 33 38 42 47 51 I 57 62

Lappedbedding mm 22 27 26 29 33 37 41 46 50 56 I 60

Approximate cable weight kg/km '000 '550 1900 2350 3150 4300 5200 6600 7950 10000,12050Minimum bending radius mm 200 250 250 250 300 350 350 400 450 500 500Maximum armour resistance Iat 20'C ohm/km 3·6 2·5 2·3 2·0 1·8 1·3 1-1 0·78 0·71 0'63 i 0·58Gross armour wire area (min) sq.mm 39 63 70 79 91 130 143 201 I 223 250 I 274

Unarmoured Maximum D.C. ator Armoured resistance of 20"C ohm/km 1·15 ·727 ·524 ·387 ·268 ·193 ·153 ·124 ·0991 ·0754 ·0601Cable conductor A.C. at

90'C ohm/km 1·46 ·927 ·668 ·493 ·342 ·246 ·196 '159 ·128 ·0988 ·0799Inductance mH/km ·260 ·251 ·246 ·244 ·241 ·232 ·231 ·233 ·233 ·231 ·228Reactance at 50 Hz ohm/km ·082 ·079 ·078 ·077 ·076 ·073 ·073 ·074 ·074 ·073 ·072Impedance at 90°C ohm/km 1·46 ·931 ·674 ·500 ·351 ·264 ·210 '176 ·148 '123 ·108Voltage drop mV/A/m 2·53 1 ·61 1 ·17 ·866 ·608 ·457 ·364 ·305 ·256 213 ·187

Unarmoured Sustained current laid direct amp 110 145 175 210 260 305 355 400 450 530 590Cable rating (based on in single-

the standard way ducts amp 90 120 145 170 210 255 295 325 375 435 500conditions on in air amp 100 130 160 195 250 305 355 415 470 560 650page 2).

ArmouredG~~ct

amp 115 150 180 215 265 315 360 405 460 530 590Cable in sing e-

~ amp 94 125 150 175 215 260 300 335 380 440 495in air amp 105 140 170 205 260 320 370 430 490 580 660

'Unarmoured Maximum for 0·2 sec kA 5'1 8·1 11·2 15·2 21·9 30'4 38·5 47·3 59·3 >60 >60or Armoured Symmetrical for 1·0 sec kA 2·2 3·6 5·0 6·8 9·8 13'6 17·2 2,., 26·5 34·9 43·7Cable short-circuit for 3·0 sec kA 1·3 2·0 2·9 3·9 5·6 7·8 9·9 12·2 15·3 20·1 25·2

current rating


current rating for 3·0 sec kA 1·1 i-s 1·7 2·0 2·4 3·3 3·7 5·2 5·8 6·5 7·2


Note 1: Short<ireuit cumtnt ratings based on:Symmetrical. conductor temperature rise. 9O'C to 2S0·C.Earth fault. armour temperature rise. 85'C to 200·C.

25 kvA

5

AEI power cables

Four-core 600/1000 V Cable with Stranded Copper Conductors

Nominal Area of Conductor sq.mm ·16 ·25 35 50 70 95 120 150 185 240 300Thickness of Insulation mm 0·7 0·9 0·9 1 0 1 ·1 1·1 1·2 1 4 1·6 1·7 1·8

Unarmoured Thickness of Oversheath mm 1·8 1 8 1·8 1·8 20 2·1 2·2 2·4 2·6 28 3·0Cable Approximate Overall diameter mm 21 26 28 29 33 ·38 42 47 52 59 64

Approximate cable weight kg/km 850 1250 1650 2150 3050 4100 5150 6300 7900 10300 12800Minimum bending radius mm 175 250 250 250 300 350 350 400 450 500 550

Armoured Thickness of Extruded mm 0·8 1·0 1·0 1·0 1·2 1·2 1·4 1·4 1·4 1 6 1 6Cable bedding Lapped mm 0·8 0·8 0·8 08 0·8 0·8 0·8 0·8 0·8 08 08

Armour wire diameter mm 1·25 1·6 1·6 16 20 20 2·5 25 25 25 2·5Thickness of oversheath mm 1·6 1·7 1·8 1 9 21 2·2 2·3 2-4 26 2·7 29Approx. overall Extruded

Idiameter bedding mm 24 30 29 33 39 43 49 53 58 65 71Lappedbedding mm 24 29 29 33 38 42 47 52 57 63 69

Approximate cable weight kg/km 1250 1900 2350 3000 4250 5450 7050 8400 10200 12850 15600Minimum bending radius mm 200 250 250 300 350 350 400 450 500 550 600Maximum armour resistanceat 20 C ohm/km 3·2 2·3 2·0 1·8 1·2 1-1 ·76 ·68 ·61 ·54 ·49- Gross armour wire area (min) sq.mm 45 71 80 90 133 149 210 232 258 289

, 319

Unarmoured Maximum D.C. ator Armoured resista nce of 20'C ohm/km 1·15 727 524 ·387 268 ·193 '153 ·124 ·0991 "0754 0601Cable conductor A.C. at

90 C ohm/km 1·46 927 668 ·493 ·342 ·246 ·196 ·159 128 l0988 ·0799Inductance mH/km 260 ·251 246 ·244 ·241 ·232 ·231 ·233 233 ·231 ·228Reactance at 50 Hz ohm/km ·082 079 ·078 077 ·076 ·073 073 ·074 074 '073 ·072Impedance at 90'C ohm/km 1·46 931 674 ·500 ·351 ·264 ·210 ·176 ·148 "123 ·108- Voltage drop mV/A/m 2·53 1 ·61 1 ·17 ·866 I ~'08 ·457 ·364 ·305 ·256 ·213 I ·187 I

Unarmoured Sustained current laid direct amp 110 145 175 210 260 305 355 400 450 530 590Cable rating (based on In single-

the standard way ducts amp 90 120 145 170 210 255 295 325 375 435 500conditions on in air amp 100 130 160 195 250 305 355 415 470 560 650

Armouredpage 2).

+aid direct 115 150 180 215 265 315 360 405 460 530 590ampCable in single-

ducts amp 94 125 150 175 215 260 300 335 380 440 495

I in air amp 105 140 170 205 260 320 370 430 490 580 660r~'Unarrnoured Maximum for 0·2 sec kA 5'1 8·1 11·2 15·2 21·9 30·4 38·5 47·3 59·3 >60 >60or Armoured symmetrical for 1·0 sec kA 2·2 3·6 5·0 6·8 9·8 13·6- 17·2 21-1 26·5 34·9 43·7Cable short-circuit for 3·0 sec kA 1·3 2·0 2·9 3·9 5·6 7·8 9·9 12·2 15·3 20·1 25·2

current rating


I current rating for 3·0 sec kA 1·2 1·7 1·9 2·4 3·4 3·8 5·4 5·9 6·6 7·6 8·4

"Circular conductors

Note 1: Short-circuit current rating. based on:Symmetrical, conductor temperature rise, 9O'C to 250'C.Earth fault, armour temperature rise, 85'C to 200' C

6

------

AE:J:CABLES

Four-core 600/1000 V Cable with Stranded Copper Conductors(3 Phase -'- Reduced Neutral)

Nominal Area of Phase so.mm "25 35 50 70 95 120 150 185 240 300 300Conductor Ne~tral· sq.rnrn 16 16 25 35 50 70 70 95 120 150 185

Thickness of Phase mm 0·9 0·9 1 0 1-1 1-1 1 2 1·4 1 6 1·7 1 8 1 8Insulation Neutral mm 0·7 0·7 0·9 0:9 1·0 1-1 1·1 1 ·1 1·2 1 4 16

Unarmoured Thickness of Oversheath mm 1·8 1·8 1·8 1·9 2·0 2·2 2·3 24 26 2·8 2·9Cable Approximate overall diameter mm 25 27 28 32 36 41 44 49 56 61 63


Armoured Thickness of Extruded mm 1·0 1·0 1·0 1 2 12 1·2 1·4 '·4 '·6 1 6 1 6Cable bedding Lapped mm 0·8 0·8 0·8 0·8 0·8 0·8 0·8 0·8 0·8 0·8 0·8

Armour wire diameter mm 1·6 1·6 1·6 2·0 2·0 2·0 2·5 2·5 2·5 2·5 2·5Thickness of oversheath mm 1·7 , ·8 1·9 2·0 2·1 2·2 2·4 2·5 2·6 2·8 2·8Approx. overall Extrudeddiameter bedding mm 29 28 32 37 41 46 51 56 62 68 69


Approximate cable weight kg/km 1800 2150 2750 3850 4950 6150 7550 9200 11550 14000 14450Minimum bending radius mm 250 250 300 300 350 400 400 450 500 550 550Maximum armour resistanceat 20°C ohm/km 2·3 2.1 1.8 1.3 '.1 ·96 .71 ·63 ·56 .52 49Gross armour wire area (mini sq.mrn 71 77 88 129 147 165 224 252 280 308 327

Unarmoured Maximum D.C. ator Armoured resistance of phase 20°C ohm/km ·727 524 ·387 ·268 .193 ·153 ·124 0991 ·0754 ·0601 ·0601Cable conductor A.C. at

90'C ohm/km ·927 ·668 493 ·342 .246 ·196 ·159 ·128 ·0988 ·0799 ·0799Inductance mH/km ·251 ·246 ·244 ·241 ·232 ·231 ·233 ·233 ·231 228 ·228Reactance at 50 Hz ohm/km ·079 ·078 ·077 ·076 ·073 ·073 ·074 ·074 ·073 072 ·072Impedance at 90°C ohm/km ·931 ·674 ·500 ·351 ·264 ·210 ·176 ·148 ·123 ·108 ·108Voltage drop mVIAlm 1.61 1.17 .866 .608 .457 .364 305 .256 213 .187 .187


the standard way ducts amp 120 145 170 210 255 295 325 375 435 500 500conditions on In air amp 130 160 195 250 305 355 415 470 560 650 650page 2).

Armoured laid direct amp 150 180 215 265 315 360 405 460 530 590 590Cable in single-

way ducts amp 125 150 175 215 260 300 335 380 440 495 495in air amp 140 170 205 260 320 370 430 490 580 660 660

t-----.'Unarmoured Maximum for 0·2 sec kA 8·1 11·2 15·2 21·9 30·4 38·5 47·3 59·3 >60 >60 >60or Armoured symmetrical for 1·0 sec kA 3·6 5·0 6·8 9·8 13·6 17·2 21·1 26·5 34·9 43·7 43·7Cable short-circuit for 3·0 sec kA 2·0 2'9 3·9 5·6 7'8 9·9 12·2 15·3 20·1 25'2 25·2

current rating

'Armoured Maximum eanh- for 0·2 sec kA 6·5 7·2 8·5 12·7 14·3 16·1 22·4 24·8 27·7 30·6 31·1Cable fault Ihon-circuit for 1·0 sec kA 2·9 3·2 3·8 5·7 6·4 7·2 10·0 11·1 12·4 13·7 13·9

current rating for 3·0 sec kA 1·7 1·8 2·2 3·3 3·7 4·2 5·8 6·4 7·2 7·9 8·0

·Circular conductors

Note 1: Short-circuit current ratings based on:Symmetrical. conductor temperature rise. 9O'C to 2S0·C.Earth fault. armour temperature rise. 8S'C to 2oo·C.

7

AEI power cables

Single-core 600/1000 V Cable with Solid Aluminium Conductor

Nominal Area of Conductor sq.mm 50 70 95 120 150 185 240 300Thickness of Insulation mm 1·0 1 ·1 1·1 1 ·2 1 ·4 1 ·6 1·7 1 ·8

Unarmoured Thickness of Oversheath mm 1·4 1·4 1 ·5 1 ·5 1 ·6 1·6 1 ·7 1 ·8Cable Approximate overall diameter mm 14 16 18 19 22 24 26 29

, Approximate cable weight kg/km 250 350 450 500 650 750 950 ,'200I Minimum bending radius mm 125 150 150 175 200 200 250 250

I Armoured Thickness of bedding Extruded mm 0·8 0·8 0·8 0·8 1·0 1 ·0 1·0 l' 0Cable Lapped mm 0·8 0·8 0·8 0·8 0·8 0·8 0·8 I 0·8Armour wire diameter mm 0·9 1 ·25 1 ·25 1 ·25 1 '6 1·6 1·6 1 6Armour Strip thickness mm 0·6 0·6 0·6 0·6 0·6 0·6 1·0 1 0

I width mm 2-4 24 2'4 24 2·4 2-4 3·6 , 3·6, Thickness of oversheath mm 1·5 1·5 1 ·6 1·6 1·7 1·8 1'8 1·9

IApprox. overall diameter Extruded bedding mm 17 20 21 23 26 28 31 34(wire) Lapped bedding mm 17 20 21 23 26 28 31 33

IApproximate cable weight kg/km 350 500 600 700 900 1100 1300 1550Apprcxrrnate overall diameter Extruded bedding mm 16 18 20 22 24 26 30 32

I (stnp) Lapped bedding mm 16 18 20 22 24 26 29 32Approxrrnate cable weight kg/km 350 450 550 650 750 950 1200 1450Minimum bending radius mm 150 175 175 200 250 250 250 300

IMaximum resistance of aluminium wire ohm/km 1·4 ·84 ·76 ·68 ·48 ·43 ·39 I ·36armour at 20'C aluminium strip ohm/km 1·8 1·6 1·4 1·3 1 ·1 .97 .51 ·46Gross armour area (minl aluminium wire sq.mm 23 39 43 47 68 75 84 92Gross armour area (minl aluminium strip sq.mm 17 19 22 23 28 31 60 66

Unarmoured Maximum resistance of D.C. at 20'C ohm/km ·641 ·443 ·320 ·253 ·206 ·164 ·125 ·100or Armoured conductor "A.C. at 90eC ohm/km ·821 ·568 ·409 ·324 264 ·210 ·160 ·129Cable

Unarmoured 'Inductance mH/km ·295 ·284 ·274 ·269 '269 ·267 ·261 ·258

I Cable 'Reactance at 50 Hz ohm/km ·093 ·090 ·087 ·085 ·085 ·084 082 082Impedance at 90°C ohm/km ·826 ·575 ·418 ·335 ·277 ·226 ·180 ·153, I 'Voltage drop mV/A/m 1 ·431 ·996 ·724 ·580 ·480 ·391 ·312 265

Armoured "Inductance mH/km ·339 ·331 ·317 ·308 <310 ·305 ·295 ·289Cable "Reactance at 50 Hz ohm/km 107 ·104 ·100 ·097 ·098 ·096 ·093 ·091

Impedance at 90'C ohm/km ·828 ·577 ·421 ·338 ·282 ·231 ·185 ·158

1 'Voltage drop mV/A/m 1 ·434 ·999 ·729 ·585 ·488 ·400 ·320 ·274!

Unarmoured oSustained Current rating laid direct amp 175 215 ?60 295 330 370 430 490Cable (based on the standard in single-way ducts amp 180 220 260 295 325 370 435 496

conditions on page 2). in air amp 165 215 265 310 360 420 495 580.-'Armoured laid direct amp 175 220 260 295 330 375 435 490Cable in single-way ducts amp 180 220 260 295 330 365 410 455

in air amp 170 215 265 310 355 410 495 570

12unarmoured Maximum symmetrical short- for 0·2 sec kA 9·4 13·7 19·0 24·0 29·5 37·0 48·7 >60or Armoured circuit current rating for 1 ·0 sec kA 4·2 6·1 8·5 10·7 13·2 16·5 21 ·7 27·3Cable for 3·0 sec kA 2·4 3·5 4·9 6·2 7·6 9·5 12·5 15·7

12Armoured Maxirnurn earth-fault short- aluminium wire kA 1·8 3·0 3·4 3·9 5·4 5·9 6·6 7·2I Cable CifCUlt current rating for 1 ·0 sec aluminium strip kA 1·6 1·7 1·9 2·2 2·4 2·7 5·1 5·7

'Cables in touching trefoil arrangement.

ecabtes in touching trefoil or trefoil ducts.

Note: 1 Ratings for armoured cables assume armour is bonded at both ends of route.

Note 2: Short-circuit current ratings based on:Symmetrical. conductor temperature rise. SO'C to 250·C.Earth fault. armour temperature rise. 85'C to 200·C.

8

AB%CABLES

Twin-core 600/1000 V Cable with Solid Aluminium Conductors

Nominal Area of Conductor sq.mm ·16 25 35 50 70 95Thickness of Insulation mm 0·7 09 0·9 , ·0 ,., , ,Unarmoured Thickness of Oversheath mm 1·8 1·8 , 8 1 8 , ·8 , ·9Cable Approxrrnate overall diameter mm 18 17 18 20 23 26

Approximate cable weight kg/km 250 350 400 500 700 850Minimum bending radius mm 150 150 150 175 200 250

Armoured Thickness of bedding Extruded mm 0·8 0·8 1·0 1·0 10 1·2Cable Lapped mm 0·8 0·8 0'8 0·8 0·8 0·8

Armour wire diameter mm 1·25 1·25 1·6 1·6 16 20Armour strip thickness mm 0·6 0·6 0·6 0·6 10 0

width mm 2·4 2·4 2·4 2·4 3·6 3·6Thickness of oversheath mm 1·5 1·6 1 7 1 8 19 20Approximate overall diameter (wire) Extruded bedding mm 20 19 22 24 27 31

Lapped bedding mm 20 19 21 24 27 30Approximate cable weight kg/km 550 550 700 1100 1350 800Approximate overall diameter (strip) Extruded bedding mm 19 18 19 22 26 29

Lapped bedding mm 19 18 19 22 26 28Approximate cable weight kg/km 300 400 500 600 850 1100Minimum bending radius mm 175 175 175 200 250 250Maxrmurn resistance of armour at 20'C steel wire ohm/km 3·9 4·1 2·9 2·6 2·3 1·6

aluminium Strip ohm/km 1·6 1·7 1·5 1·3 62 ·54

I Gross armour area (min) steel wire sq.mm 32 38 54 62 71 100Gross armour area (rninl aluminium strip sq.mm 9 17 20 23 48 56 I

Unarmoured Maximum resistance of conductor D.C. at 20'C ohm/km 1·89 1·20 ·868 ·641 443 ·320or Armoured A.C. at 90'C ohm/km 2·42 , ·53 ,., 1 822 568 410Cable Inductance mH/km ·253 ·255 ·247 ·244 241 234

Reactance at 50 Hz ohm/km ·080 '08' 078 077 ·076 074Impedance at 90'C ohm/km 242 , ·54 1·11 826 574 418Voltage drop rnV/A/rn 4·84 3·08 2·22 1 ·65 1 ·15 ·836

Unarmoured Sustained Current rating (based on the laid direct amp 92 120 '50 180 225 265Cable standard conditions on page 2). in single-way ducts amp 77 100 120 140 180 220

in air amp 79 '05 130 '55 200 245

Armoured laid direct amp 105 135 165 195 240 285Cable In single-way ducts amp 85 110 130 155 195 235

In air amp 89 120 145 175 220 270

'Unarmoured Maximum symmetrical short-circuit for 0·2 sec kA 3·2 5·0 7·0 9·4 13·7 19·0or Armoured current rating tor t-O sec kA , ·4 2·2 3,' 4·2 6,' 8·5Cable for 3·0 sec kA 0·8 , ·3 , ·8 2·4 3·5 4·9

'Armoured Maximum earth-fault short-circuit current steel wire kA '·4 '·6 2·3 2·8 3·1 4·4Cable rating tor t-O sec aluminium strip kA '·4 1·4 ',5 2·2 4·2 4·8


Note 1; Short-circuit current ratings based on;Symmetrgl. conductor temperature rise. 9O'C to 250'C.Earth fault. armour temperature rise. 85'C to 200'C.

9

AEI power cables

Three-core 600/1000 V Cable with Solid Aluminium Conductors

Nominal Area of Conductor sq.mm '16 25 35 50 70 95 120 150 185 240 300Thickness of Insulation mm 0·7 0·9 0·9 1·0 1·1 H 1·2 1·4 1·6 1·7 1·8

Unarmoured Thickness of Oversheath mm 1·8 1·8 18 1·8 1·9 2·0 2·1 2·2 2·4 2·6 2·7Cable Approximate Overall diameter mm 19 23 21 24 27 30 34 38 42 47 51


Armoured Thickness of Extruded mm 0·8 1·0 1·0 1·0 1·0 1·2 1·2 1·4 1·4 1·4 1·6Cable bedding Lapped mm 0·8 0·8 0·8 0·8 0·8 0·8 0·8 08 0·8 0·8 0·8

Armour wire diameter mm 1·25 1·6 1·6 1·6 1·6 2·0 2·0 2·5 2'5 2·5 2 5Armour stnp thickness mm 0·6 0·6 0·6 0·6 1·0 1·0 1·4 1·4 1·4 1·4 1·8

width mm 2·4 2·4 2·4 2·4 3·6 3·6 4·8 4·8 4·8 4·8 6·4Thickness of oversheath mm 1·6 1·7 1·8 1·8 1·9 2·1 2·2 2·3 2'4 2·6 2·7Approx. overall Extrudeddiameter (wife) bedding mm 21 23 25 28 31 36 39 44 48 53 58


Approximate cable weight kg/km 650 1000 1150 1400 1700 2300 2700 3500 4100 4950 5800Approx. overall Extrudeddiameter (Strip) bedding mm 20 21 22 26 30 34 38 42 46 51 56


Aporoximate cable weight kg/km 400 550 650 800 1150 1500 1900 2250 2750 3400 4250Minimum bending radius mm 175 200 200 250 250 300 350 400 400 450 500Max.mum steelresistance of wire ohm/km 3·9 2·7 2'5 2·2 1·9 1·3 1·2 ·86 ·76 ·69 ·63armour at 20' C aluminium

strip ohm/km 1·5 1·4 1·2 1·1 ·51 ·44 ·30 ·27 ·24 ·21 ·15Gross armour area (min)steel wire sq.mm 37 59 65 73 84 120 132 186 207 230 253

Gross armour area (min)aluminium strip sq.rnrn 17 21 25 27 59 68 101 112 126 144 202-

Unarmoured Maximum D.C. ator Armoured resistance of 20'C ohm/km 1·89 1·20 ·868 ·641 ·443 ·320 ·253 206 164 ·125 ·100Cable conductor A.C. at

90'C ohm/km 2·42 1·53 1·11 ·822 ·568 ·411 ·325 265 ·211 ·162 ·130Inductance mH/km ·253 ·255 ·247 ·244 ·241 '234 ·233 ·235 ·236 ·233 231Reactance at 50 Hz ohm/km '080 ·081 ·078 ·077 ·076 ·074 ·074 074 '075 ·074 ·073Impedance at 90' C ohm/km 2·42 1·54 1·11 ·826 ·574 ·418 ·334 ·276 ·225 ·179 ·150, I Voltage drop mV/A/m 4·19 2·67 1 ·93 1·43 ·994 ·723 ·579 ·478 ·390 ·310 ·260

Unarmoured Sustained current laid direct amp 86 110 135 165 195 240 270 305 345 405 455I Cable rating (based on in single-

the standard way ducts amp 70 92 105 130 165 195 230 250 290 335 385conditions on in air amp 74 100 120 155 185 230 270 310 360 425 495

Armoured page 2). laid direct amp 89 115 135 165 200 240 275 310 350 410 460Cable in single-

way ducts amp 72 94 110 135 165 200 230 255 295 340 385in a,ir amp 77 105 125 155 195 235 280 320 370 440 510

'Unarmoured Maximum for 0·2 sec kA 3·2 5·0 70 9·4 13·7 19·0 24·0 29·5 37·0 48·7 >60or Armoured symmetrical for 1·0 sec kA 1 4 2·2 3·1 4·2 6'1 8·5 10·7 13·2 16·5 21·7 27·3Cable short-circuit for 3·0 sec kA 0·8 1·3 1·8 2·4 '3·5 4·9 6·2 7·6 9·5 12·5 15·7

current rating

'Armoured Maxrmurn earth- steel wire kA 1·4 2·2 2·7 3·2 3·7 5·3 5·9 8·2 9·3 10·3 11·3Cable fault short-circuit aluminium

current rating for strip kA 1·4 1·6 1·9 2·7 5·1 5·7 8·9 9·9 11·0 12·6 18·21·0 sec


Note 1: Short-circuit current ratings based on:Symmetrical, conductor temperature rise, 9O'C to 250·C.Earth fault. armour temperature rise. 85'C to 200·C.

10

.AEXCABLES

Four-core 600/1000 V Cable with Solid Aluminium Conductors

Nominal Area of Conductor sq.mm " 6 25 35 50 70 95 120 150 185 240 300Thickness of Insulation mm 0·7 0·9 0·9 1·0 1·1 1·1 1·2 1·4 1 6 1 7 1 8

Unarmoured ! Thickness of Oversheath mm 1·8 1·8 1 8 1·8 20 2·1 2·2 24 2·6 2·8 30Cable Approximate Overall diameter mm 20 22 24 27 31 35 41 46 51 57 63


Armoured Thickness of Extruded mm 0·8 1·0 1·0 10 1 2 12 1·4 1 4 1 4 1 6 1 6Cable bedding Lapped mm 0·8 08 0·8 0·8 08 0·8 0·8 08 08 08 08

Armour wire diameter mm 1·25 1 6 1·6 1 6 2·0 2·0 2·5 25 25 2 5 25Armour strip thickness mm 0·6 0·6 0·6 1·0 1·0 1·4 1 4 1·4 1 4 1 8 1 8

width mm 2·4 2·4 2·4 3·6 3·6 4·8 48 4·8 48 64 64Thickness of oversheath mm 1·6 1·7 1 8 1·9 2·1 2·2 2·3 24 2·6 27 29Approx. overall Extruded

Idiameter (wire) bedding mm 23 25 27 31 37 40 45 49 54 60 66Lappedbedding mm 23 25 27 31 36 39 44 48 53 59 65 IApproximate cable weight kg/km 800 1150 1350 1650 2350 2850 3700 4300 5100 6150 7200

Approx. overall Extruded

Idiameter (strip) bedding mm 21 23 25 30 34 39 43 47 52 59 64


Acoroxrrnate cable weight kg/km 450 650 800 1100 1500 2000 2400 2850 3500 4500 5450 IMinimum bending radius mm 200 200 250 250 300 350 400 400 450 500 550 'Maxl~um steelresistance of wire ohm/km 3·4 2·4 2·2 1·9 1·3 1·2 ·82 ·74 66 ·59 ·54armour at 20 C aluminium

strip ohm/km 1·3 1·2 1·1 ·51 ·44 ·28 ·25 ·23 ·20 ·14 ·13Gross armour area (m in)steel wire sq.mm 42 67 73 85 126 141 203 220 243 274 300

Gross armour area (min) Ialuminium strip sq.mm 20 25 27 59 68 108 121 131 151 216 233

Unarmoured Maximum D.C. ator Armoured resistance of 20°C ohm/km 1·89 1·20 868 641 ·443 320 253 ·206 ·164 125 .100Cable conductor A.C. at

90'C ohm/km 2-42 1·53 ,., 1 ·822 ·568 411 ·325 ·265 ·211 ·162 ·130Inductance mH/km ·253 ·255 ·247 ·244 241 234 ·233 235 ·236 ·233 ·231I Reactance at 50 Hz ohm/km ·080 ·081 ·078 077 ·076 ·074 ·074 ·074 075 ·074 ·073Impedance at 90'C ohm/km 2·42 1·54 ,., 1 ·826 ·574 ·418 ·334 ·276 ·225 ·179 ·150Voltage drop mV/A/m 4·19 2·67 1 ·93 I 1 ·43 ·994 I ·723 I ·579 ·478 ·390 ·310 ·260


the standard way ducts amp 70 92 105 130 165 195 230 250 290 335 385conditions on in air amp 74 100 120 155 185 230 270 310 360 425 495page 2).

Armoured laid direct amp 89 115 135 165 200 240 275 310 350 410 460Cable in single-

way ducts amp 72 94 110 135 165 200 230 255 295 340 385in air amp 77 105 125 155 195 235 280 320 370 440 510

'Unarmoured Maximum for 0·2 sec kA 3·2 5·0 7·0 9·4 13'7 19·0 24·0 29·5 37·0 48·7 >60or Armoured symmetrical for 1·0 sec kA 1·4 2·2 3·1 4·2 6·1 8·5 10·7 13·2 16·5 21·7 27·3Cable short-circuit for 3·0 sec kA 0·8 1·3 1·8 2·4 3·5 4·9 6·2 7·6 9·5 12·5 15·7

current rating

'Armoured Maxrrnurn earth- steel wire kA 1·4 2·2 3·0 3·6 5·5 6·1 8·5 9·5 10·6 11·9 13-0Caole fault short-circuit aluminium

current rating strip kA 1·4 1·9 2·0 4·2 5·9 8·5 10·5 11·6 13·2 19·2 21·0for 1·0 sec


Not. t: Short-circuit current ratings based on:Symmetrical, conductor temperature rise, 9O'C to 250·C.Earth fault, armour temperature rise, 8s'C to 200·C.

11

AEI power cables

Single-core 1900/3300 V Cable with Stranded Copper Conductor

Nominal Area of Conductor sq.mm 50 70 95 120 150 185 240 300 400 500 630Thickness of Insulation mm 2'0 20 2'0 2·0 2·0 2·0 2·0 2·0 2·0 2·2 2·4

Thickness of Extruded mm 0·8 08 0·8 1·0 1 0 1·0 1·0 1·0 1·2 1·2 1·2bedding Lapped mm 0·8 0·8 0·8 0·8 C'8 0·8 0·8 0·8 0·8 0·8 0·8Armour wire diameter mm 1·25 1,25 1 25 1·6 1·6 1 ·6 1·6 1·6 2·0 2·0 2·0Thickness of oversheath mm 1·6 1·6 1 6 1·7 1·7 1·8 1·8 1·9 2·0 2'1 2·2

Approx. overall Extrudeddiameter bedding mm 21 23 25 28 29 31 34 36 40 44 51


Approximate cable weight kg/km 850 1050 1350 1700 2000 2400 3000 3650 4600 5700 7250

Minimum bending radius mm 175 200 200 250 250 250 300 300 350 400 450Maximum armour resistanceat 20'C ohm/km ,76 ·68 ·62 ·43 ·41 ·37 ·35 ·31 ·23 ·20 18Gross armour wire area (min) sq.rnrn 43 48 53 75 81 87 96 105 145 161 180

Maximum D.C. atresistance of 20'C ohm/km ·387 ·268 ·193 ·153 ·124 ·0991 ·0754 ·0601 ·0470 ·0366 ·0283conductor "A.C. at

90°C ohm/km ·493 ·341 ·246 ·196 ·159 ·128 ·0981 ·0792 ·0630 ·0505 ·0407

"Inductance mH/km ·364 '343 ·327 ,319 ·310 ·301 ·291 ·283 ·280 ·274 ·2E8"Reactance at 50 Hz ohm/km '115 '108 ·103 ·101 ·098 ·095 ·092 ·089 '088 ·087 ·085Impedance at 90'C ohm/km '506 ·357 ·267 ·220 ·187 ·159 ·134 ·119 ·108 ·101 ·095'Voltage drop mV/A/m ·876 ·618 ·462 ·381 ·324 ·275 ·232 ·206 ·187 ·175 ·165

<;6' Sustained Current laid direct amp 225 275 325 370 415 465 530 590 660 720 790rating (based on in single-the standard way ducts amp 220 270 315 345 380 420 470 510 540 580 630conditions on in air amp 245 305 370 430 490 560 660 750 860 960 1080page 2).

'Maximum for 0·2 sec kA 15·2 21·9 30·4 38·5 47·3 59·3 >60 >60 >60 > 60 >60symmetrical for 1·0 sec kA 6·8 9·8 13'6 17·2 21·1 26·5 34·9 43·7 55·9 >60 >60short-circuit for 3·0 sec kA 3·9 5·6 7·8 9·9 12·2 15·3 20·1 25·2 32·3 40·7 52·6current rating

'Maximum earth- fer 0·2 sec kA 7·6 8·7 9·6 13·2 14·3 15·7 17·2 19·0 25·9 28·8 32·4fault short-crrcurt for 1 0 sec kA 3·4 3·9 4·3 5·9 6,4 7·0 7·7 8·5 11·6 12·9 14·5current rating for 3·0 sec kA 2·0 2·3 2·5 3·4 3·7 4·0 4·4 4·9 6·7 7·4 8·4

'Cables in touching trefoil arrangement.oCables In touching trefoil or trefoil ducts.

Note 1 Ratings assume armour is bonded at both ends of route.Note 2: Short-circult current ratings based on:

Symmetrical. conductor temperature rise. SO'C to 250·C.Earth fault. armour temperature rise. 8S'C to 2oo·C.

12

_____ J

.AB:!:CABLES

Three-core 1900/3300 V Cable with Stranded Copper Conductors

Nominal Area of Conductor sq.mm -16 -25 35 50 70 95 I 120 150 185 240 300Thickness of Insulation mm 2'0 2·0 2·0 20 2·0 2·0 2·0 2·0 2·0 2·0 2·0

I Thickness of bedding Extruded mm 1·0 1·0 1·0 1·2 1·2 1·2 1·4 1·4 1·4 1·6 ',61Lapped mm 0·8 0·8 0·8 0·8 0·8 0·8 0·8 0·8 0·8 0·8 0·8

Armour wire diameter mm ',6 ',6 ',6 2'0 2·0 2·0 2·5 2·5 2·5 25 2·5 ,I Thickness of Oversheath mm 1·8 1·8 1·9 2·0 2,' 2·2 2·3 2'4 2·5 2·6 2·7 I

Approx. overall diameter Extruded bedding mm 31 33 32 36 39 42 47 49 53 58 62 !,Lapped bedding mm 31 32 31 35 38 41 45 48 52 56 61 II

Approximate cable weight kg/km 1500 1850 2250 2950 3700 4700 5950 6900 8150 10150 12150i

I Minimum bending radius mm 250 300 300 300 350 350 400 400 450 500 500Maximum armour resistance at 20°C ohm/km 2·0 1·8 1·8 1·3 1·2 1·1 ·78 ·73 ·68 ·61 ·56 IGross armour wire area (min) sq.mm 73 80 88 120 134 148 202 216 234 257 280

Maximum resistance D.C. at 20°C ohm/km ,.,5 ·727 ·524 ·387 ·268 ·193 ·153 ·124 ·0991 ·0754 ·0601of conductor A.C. at 90°C ohm/km 1·46 ·927 668 ·493 ·342 ·246 ·196 '159 '128 ·0988 0799

Inductance mH/km ·326 ·306 ·286 ·275 ·264 ·255 ·246 ·241 ·236 ·231 ·227Reactance at 50 Hz ohm/km ·103 ·097 ·090 ·087 ·083 ·081 ·078 ·076 ·075 ·073 ·072Impedance at 90'C ohm/km 1·47 ·933 ·675 ·502 ·353 ·267 ·212 ·177 ·149 ·123 ·108

Sustained current rating laid direct amp 115 145 175 205 255 305 345 385 435 500 560(based on the standard in single-way ducts amp 95 120 145 175 215 255 295 330 370 425 480conditions on page 2). in air amp 110 145 175 210 265 325 380 430 495 580 660

'Maximum symmetrical for 0·2 sec kA 5·1 8·1 11·2 15·2 21·9 30·4 38·5 47·3 59·3 >60 > 601 short-circuit current for 1·0 sec kA 2·2 3'6 5·0 6·8 9·8 13·6 17·2 2,., 26·5 34·9 43·7

rating for 3·0 sec kA 1'3 2'0 2·9 3·9 5·6 7·8 9·9 12·2 15·3 20·1 25·2

Maximum earth-fault for 0·2 sec kA 5·1 8·1 8·2 11·9 13·2 14·8 20·1 21·7 23·0 26·2 28·2short-circuit current for 1·0 sec kA 2·2 3·6 3·7 5·3 5·9 6·6 9·0 9·7 10·3 11·7 12·6rating for 3·0 sec kA 1·3 2·0 2·1 3·1 3·4 3·8 5·2 5·6 5·9 6·8 7·3


Note 1: Short-circuit current ratings based on:Symmetrical. conductor temperature rise, 90'C to 250'C.Earth fault. armour temperature rise. 85'C to 200'C.

13

AEI power cables

Single-core 1900/3300 V Cable with Solid Aluminium Conductor

Nominal Area of Conductor sq.mm 50 70 95 120 150 185 240 300Thickness of Insulation mm 2·0 2·0 2·0 2·0 2·0 2·0 2·0 2·0

Thickness of bedding Extruded mm 0·8 0·8 0·8 1·0 1 ·0 1·0 1·0 1·0Lapped mm 0·8 0·8 0·8 0·8 0·8 0·8 0·8 0·8

Armour wire diameter mm 1·25 1·25 1·25 1 ·6 1·6 1·6 1·6 1·6Armour stnp thickness mm 0'6 0·6 0·6 0·6 0·6 1·0 1·0 1·0

width mm 24 2·4 2·4 2·4 2·4 3·6 3·6 3·6Thickness of oversheath mm 1·6 1·6 1 ·6 1·7 1·7 1·8 1·8 1·9

Approximate overall diameter Extruded bedding mm 20 22 23 26 28 29 32 34(wire) Lapped bedding mm 20 22 23 26 27 29 31 34Approximate cable weight kg/km 500 600 700 850 950 1100 1350 1550

Approximate overall diameter (Strip) Extruded bedding mm 19 20 22 24 25 28 30 33Lapped bedding mm 19 20 22 24 25 28 30 32

Approximate cable weight kg/km 450 500 600 700 800 1050 1250 1500

Minimum bending radius mm 175 200 200 250 250 250 300 300Maximum resistance of armour aluminium wire ohm/km ·82 ·74 ·68 ·48 ·45 ·41 ·37 ·35at 20°C aluminium strip ohm/km 1·6 1·4 1·3 1·1 1·1 ·54 ·49 ·46Gross armour area (min) aluminium wire sq.mm 40 44 48 68 73 78 86 93Gross armour area (min) aluminium strip sq.mm 19 22 23 28 28 56 62 67

Maximum resistance of conductor D.C. at 20°C ohm/km ·641 ·443 ·320 ·253 ·206 ·164 ·125 ·100·A.C. at 90°C ohm/km ·821 ·568 ·409 ·324 ·264 ·210 ·160 ·129

'Inductance mH/km ·375 ·353 ·335 ·331 ·321 ·311 ·314 ·291

I 'Reactance at 50 Hz ohm/km ·118 ·111 '106 ·104 '101 ·098 ·099 ·092Impedance at 90°C ohm/km ·829 ·579 ·423 ·339 ·282 ·232 ·188 ·158'Voltage drop mV/A/m 1·44 1 ·00 ·733 ·587 ·488 ·402 ·326 ·274

a'Susralned current rating (based laid direct amp 175 220 260 295 330 375 435 490on the standard conditions on in single-way ducts amp 180 220 260 295 330 365 410 455page 2). in air amp 170 215 265 310 355 410 495 570

'Maximum symmetrical short- for 0·2 sec kA 9'4 13·7 19·0 24·0 29·5 37·0 48·7 >60circuit current rating for 1·0 sec. kA 4·2 6·1 8·5 10·7 13·2 16·5 21·7 27·3

for 3·0 sec. kA 2·4 3·5 4·9 6·2 7·6 9·5 12·5 15·7

j'Maximum earth-fault short- aluminium wire kA 3·1 3·5 3·9 5·4 5·8 ,: 6·9 7·5crrcurt current rating for 1 0 sec aluminium strip kA 1·7 1·9 2·2 2·4 2·5 5·2 5·7


JCables in touching trefoil or trefoil ducts.

"'ote1: Ratings assume armour is bonded at both ends of route.

"'ote 2: Short-circuit current ratings based on:Symmetrical. conductor temperature rise, 9O'C to 250·C.Earth fault, armour temper8ture rise, 8S'C to 200·C.

14

.AE%CABLES

Three-core 1900/3300 V Cable with Solid Aluminium Conductors

Nominal Area of Conductor sq.mm '16 ·25 35 50 70 95 '20 150 185 240 300 IThickness of Insulation mm 20 2·0 2·0 2·0 2·0 20 20 2·0 2·0 2·0 20

I

Thickness of t./lddlng Extruded mm ',0 ',0 ',0 ,,2 ',2 ',2 ',4 , 4 ',4 ',6 1 6Lapped mm 0·8 0·8 0·8 0·8 0·8 0·8 0·8 08 0·8 0'8 08

Armour wire diameter mm 1·6 1·6 1·6 2·0 20 2·0 2·5 2·5 25 2·5 2·5Armour Strip thickness mm 0·6 0·6 ',0 ',0 1·0 1·4 1·4 1 4 1 4 1 8 1 8

width mm 2·4 24 3·6 3·6 3·6 4·8 4·8 4·8 4·8 6·4 6·4

!Thickness of oversheath mm 1'8 1·8 1·9 2·0 2·1 2·2 2·3 2·4 2·5 2·6 2·7

Approx. overall diameter Extruded bedding mm 29 31 30 34 37 40 44 47 50 55 59(wire) Lapped bedding mm 29 31 30 33 36 40 43 46 49 53 57 I

Approximate cable weight kg/km 1150 1300 1500 1900 2250 2700 3400 3800 4350 5100 5900

Approximate overall Extruded bedding mm 27 29 30 32 35 39 42 45 48 53 57diameter (strip) Lapped bedding mm 27 29 29 31 34 38 41 44 47 52 56 I

IApproximate cable weight kg/km 600 750 950 1100 1400 1800 2150 2450 2900 3650 4350

Minimum bending radiUS mm 250 250 250 300 300 350 400 400 400 450 500 IMaximum resistance of steel wire ohm/km 2·1 1·9 1·9 1·4 1·3 1·2 ·84 ·80 ·72 ·66 ·61armour at 20'C aluminium strip ohm/km 1·1 ·90 ·54 ·49 ·44 ·28 ·27 ·24 ·23 ·15 ·15 IGross armour area (min) steel wire sq.mm 69 76 82 113 125 138 188 201 216 237 257 IGross armour area (min) aluminium strip sq.mm 28 34 56 62 67 108 112 126 131 202 202

Maximum resistance of D.C. at 20°C ohm/km 1·89 1·20 ·868 ·641 ·443 ·320 ·253 ·206 ·164 ·125 '100conductor A.C. at 90°C ohm/km 2·42 1·53 1·11 ·822 '568 ·410 ·325 ·265 ·211 ·162 ·130

Inductance mH/km ·325 ·305 ·291 ·280 ·267 '257 ·251 ·245 ·240 ·234 ·230Reactance at 50 Hz ohm/km ·103 ·096 ·092 ·088 ·084 ·081 ·079 ·077 ·076 ·074 '073Impedance at 90°C ohm/km 2·42 1·54 ,., 1 ·827 ·575 ·419 ·335 277 ·225 ·179 ·150

Sustained current rating laid direct amp 86 110 135 155 195 230 265 295 335 390 440(based on the standard in single-way ducts amp 73 93 110 130 165 195 225 250 285 330 375conditions on page 2). in air amp 82 110 130 160 200 245 285 320 370 440 510

'Maximum symmetrical for 0'2 sec kA 3·2 5'0 7·0 9'4 13·7 19'0 24·0 29·5 37·0 48·7 >60short-circuit current for 1·0 sec kA 1·4 2·2 3'1 4·2 6·1 85 10·7 13·2 16·5 21·7 27·3rating for 3·0 sec kA 0·8 1·3 1·8 2·4 3'5 4·9 6'2 7'6 9·5 12·5 15·7

'Maximum earth-fault steel wire kA 1·4 2·2 3·1 4·2 5·7 6·1 8·4 9·0 9·7 10·6 "·4short-circuit current aluminium strip kA 1·4 2·2 3·1 4·2 5·9 8·5 9·9 ",0 11·6 17,4 18·2rating for 1·0 sec


Note 1: Short-circuit current ratings based on:Symmetrical. conductor temperature rise. 90'C to 250'C.Earth fault. armour temperature rise. 85'C to 200'C.

15

Specification 6.35/11 kV LinkeX Cable to IEC 502-1

Conductors are plam annealedcopper or aluminium cornplvinqwith 85.6360.

Conductor screening IS a layer ofextruded semi-conducting com-pound having a nominal thicknessof 0·7 mm.

Insulation consists of cross-linkedpolyethylene which is applied byextrusion to form a compacthomogeneous layer. The averagethickness of the insulation is notless than 3·4 mm.

Core. Screen consists of a layer ofsemi-conducting compound, asemi-conducting tape and a metalliclayer. The metallic part will be plaincopper wires plus a counter helix ofplain copper tape for single-corecable and plain copper tape only formulti-core cable.

laying-Up The screened cores ofmulti-core cables are laid up withsuitable fillers to form a compactcircular assembly. A suitable binderIS applied over the laid up cores.

Bedding consists of an extrudedlayer of black PVC compound com-plvmq with the requirements ofType 9 to 85.6746.

Armour Multi-core cables arearmoured With galvanised steelwires. These give the cablestrength and also act as a low resis-tance earth return conductor. Whilesingle-core cables are not normallyarmoured, non-magnetic armour ofah.rrunturn wire or strip is available ifrequested.

Oversheath consists of anextruded layer of black PVC com-pound complying with the require-ments of Type 9 to 85.6746.

16

Bending Radii During installation,LinkeX cables should not be bent toa radius smaller than that given Inthe appropriate table.

Dimensions and Weights given Inthe tables on Pages 17-20 areapproximate.

Other Constructions It is possibleto supply cables with constructionsother than mentioned above,Indeed minor changes may bemade at any time enabling us tomaintain an economically pricedcable, as the relative material pricesvary.

Sustained Current Ratings (50 HzA.C.)Current ratings are given for thethree customary methods of instal-lation: laid direct In ground, In ductsor In air.

Generally, the current rating will bereduced if there IS a variation fromthe Standard conditions. The ratingfor most conditions can be calcu-lated by rnultiplvmq the sustainedcurrent rating by the factor(s) givenIn the appropriate adjustmenttablets) on Pages 26-29.

Standard ConditionsThe following conditions have beenused to calculate the current ratingsgiven in the tables:Thermal resistivityof soil (g). 1·2·C mM/Standard groundtemperature 15'CAmbient airtemperature = 25'CMaximumconductortemperature" = 90'CDepth of burial, from ground sur-face to centre of cable, centre ofduct or to centre of trefoil group ofcables or ducts = O·S m

Bonding Screens will normally beearthed at the terminations.

Overload ConditionsCross-linked polyethylene cablescan, without undue detriment.safely operate at an Increased con-ductor temperature of 130'C sub-jeer to a maximum aggregate periodof 36 hours per annum.The permissible current ratingunder overload conditions IS givenby multiplying the sustained currentrating by the factor given In theappropriate adjustment table onPages 26-29.

Short-Circuit Current RatingsIn addition to the normal sustainedcurrent ratings, consideration mustalso be given to short-Circuit ratingswhen selecting cable sizes. Ratingsfor given durations are listed In thetables on Pages 17-20.

Note: The following formula can beused to obtain the value of short-circuit current, I, in kA for any timet secs, between 0.2 and 3.0seconds:

II1=-'Vt

where I1 = short-crrcurt current InkA for 1.0 second.

'If ~s at. buried onthe ground and loaded "ontonuo~5IV.consoden'tlon should be g......, 10 the poss,bohty of localIncrease In SOil therm.t reslStMtV due to moisture migration.m.ung ~ des,'" to reduco lhe maximum conductO<opemong lerTII)OfIItut. 10 80"<:. A conductor eperatongIOmperatut. of 90"<: IS only recommended If !he thermalrO'lStMty of !he 5001 onlhe dry condrtlOn ISknown and " usedon the calculatoon of lhe current ratong.s.. pages 26-29 for vanatoons on standard condrtoons

.AE%CABl£S

Single-core 6350/11000 V Cable with Stranded Copper Conductor

Nominal Area ofConductor sq.mm 16 25 35 50 70 95 120 150 185 240 300 400 500 630Thickness of lrrsulanon mm 3·4 3·4 3·4 3·4 3·4 3·4 3·4 3·4 3·4 3·4 3·4 3·4 3·4 34

Nominal effective areaof copper wire screen sq.mm 16 16 16 16 16 25 25 25 35 35 35 50 50 50Thickness of Oversheath mm 1 5 1·6 1 ·6 1 7 1·7 1 8 1 8 1·9 1·9 2·0 2'1 2·2 2·3 24Approximate overalldiameter mm 23 25 26 27 29 32 33 35 37 40 42 46 49 55Approximate cableweight kg/km 700 800 900 1100 1300 1700 2000 2300 2800 3400 4000 5000 6100 7500Minimum bending radius mm 350 400 400 450 450 500 500 550 600 600 650 700 750 850

Maximum resistance ofcopper wire screenat 20°C ohm/km ,., ,., ,., ,., 1·1 ·70 ·70 ·70 ·51 ·51 ·51 ·35 ·35 ·35

Maximum D.C. atresistance 20°C ohm/km 1·15 ·727 ·524 ·387 ·268 ·193 ·153 ·124 ·0991 ·0754 ·0601 ·0470 ·0366 ·0283of conductor ·A.C. at

90'C ohm/km 1·47 ·926 ·668 ·493 ·341 ·246 ·196 ·159 ·127 ·0980 ·0791 ·0629 ·0504 ·0410

'Inductaece mH/km ·505 ·472 ·441 ·422 ·398 ·382 ·365 ·358 ·344 ·331 ·321 ·313 ·304 ·288'Reactance at 50 Hz ohm/km ·158 '148 138 ·132 ·125 ·120 ·114 ·112 ·108 ·103 ·100 ·098 ·095 ·090Impedance at 9O'C ohm/km 1 ·48 ·938 ·682 ·510 ·363 ·274 227 195 167 ·142 128 117 ·108 ·099

MaximumCapacitance micro F/km ·200 ·230 ·250 ·280 ·310 ·350 ·380 ·410 ·450 ·500 ·540 ·600 ·660 ·780Max. charging currentat normal voltageand frequency amp/km ·40 ·45 ·49 ·54 ·61 ·69 ·75 ·81 ·88 '98 1 ·07 1·19 1·31 1·53

aSustained laidcurrent rating direct amp 120 155 180 215 260 315 355 395 450 520 580 660 740 830(based on in single-standard wayconditions on ducts amp 120 150 180 215 260 310 350 390 440 510 570 640 710 790page 16). in air amp 130 170 205 245 310 375 435 495 570 670 770 890 1020 1190

'Maximum for 0·2symmetrical sec kA 5·1 8·1 11·2 15·2 21·9 30·4 38'~ 47·3 59·3 >60 >60 >60 >60 >60short-circuit for 1·0current sec kA 2·2 3·6 5·0 6·8 9·8 13·6 17·2 2,., 26'5 34·9 43·7 55·9 >60 >60rating for 3·0

sec kA 1·3 2·0 2'9 3·9 5·6 7·8 9·9 12·2 15·3 20·1 25'2 32'3. 40·7 52·6

'Maximum for 0·2earth-fault sec kA 4·7 4·7 4·7 4·7 4·7 7·4 7·4 7·4 10·3 10·3 10·3 15·0 15·0 15·0short-circuit for 1·0current sec kA 2·1 2·1 2·1 2·1 2·1 3·3 3·3 3·3 4·6 4·6 4·6 6·7 6·7 6·7rating for 3·0

sec kA 1·2 1·2 1·2 1·2 1·2 1·9 1·9 1·9 2·7 2·7 2·7 3·9 3·9 3·9

'Cables in touching trftoil .n.ngement.

eCables in touching trefoil Of trefoil ducts.

Not. 1: Short-circuit current rating. baNd on:Symmetrical, conductor temperature riM, 9O'C to 250·C.Earth fault. copper wire screen temperature riM, 85'C to 200·C.

17

Three-core 6350/11000 V Cable with .Stranded Copper Conductors

I Nominal Area of Conductor sq.mm 16 25 35 50 10 95 120 150 185 240 I 300 IThickness of lnsulanon mm 3·4 3-4 3·4 3·4 3·4 3·4 3·4 34 3·4 3·4 3·4

Thickness of copper screen tape mm ·016 '076 ·076 ·076 ·076 ·076 ·076 ·076 076 ·076 1076 IThickness of extruded bedding mm 1·2 1·3 1·3 1·4 1·4 1·5 1·6 1·6 1·7 1·8 I 1·91 Armour wire diameter mm 2·0 2·5 2·5 2·5 25 2·5 2·5 2'5 2·5 3'1513'15

Thickness of oversheath mm 2·3 2·5 2·5 2·6 28 2·9 3·0 3·1 3·2 3'4 3'6Approximate overall diameter mm 50 54 56 59 64 68 72 75 79 87 92

I Approximate cable weight kg/km 3700 4800 15300 6000 7000 8200 9400 10500 12100 15400 i 17900Minimum bending radius mm 600 650 700 750 800 850 900 900 950 1050 1150

I Maximum armour resistance at 20-C ohm/km ·87 ·65 ·61 ·58 ·54 ·51 ·48 45 43 I 31 I 29 ,

I Maximum resistance D.C. at 20'C ohm/km 1·15 ·721 I ·524 ·381 ·268 ·193 ·153 ·124 ·0991 1'07541'0601of conducror A.C. at 90~C ohm/km 1·46 ·927 ·668 ·493 ·342 ·246 ·196 ·159 ·127 0981 0792

Inductance mH/km ·449 ·418 ·390 ·372 ·351 ·334 ·319 ·310 ·300 289 280Reactance at 50 Hz ohm/km ·141 ·131 ·122 ·116 ·110 ·104 '100 ·097 '094 ·090 ·087Impedance at 90'e ohm/km 1·46 ·936 ·619 ·506 ·359 ·261 ·220 ·186 ·158 ·133 ·117

Maximum capacitance micro F/km ·200 ·230 ·250 ·280 ·310 ·350 ·380 ·410 ·450 ·500 ·540Maximum charging current at normal Ivoltage and frequency amp/km ·40 45 ·49 ·54 ·61 ·69 ·75 81 ·88 98 1·07

Armour loss at 50 Hz andat maximum current rating laid direct kW/km 0·1 0·2 0·3 0·5 0·9 1·4 2·0 2·7 3·5 6·2 8·2

Sustained current rating laid direct amp 110 145 170 200 245 295 335 375 420 485 540(based on standard in single-way ducts amp 94 120 145 170 210 250 280 315 365 420 465conditions on page 16) in air amp 110 145 175 210 260 320 365 415 470 560 630

'Maximum symmetrical for 0·2 sec kA 5·1 8'1 11·2 15·2 21 ·9 30·4 38·5 47·3 59·3 > 60 > 60short-circuit current for 1·0 sec kA 2·2 3·6 5'0 6·8 9·8 13·6 17·2 21-1 26·5 34·9 43·7rating for 3·0 sec kA 1·3 2·0 2·9 3·9 5·6 7·8 9·9 12·2 15·3 20·1 25·2

'Maximum earth-fault for 0·2 sec kA 5·1 8·1 11·2 15·2 21·9 30·4 35·6 37·6 39·8 54·8 58·4short-circuit current for 1·0 sec kA 2·2 3·6 5·0 6·8 9·8 13·6 15·9 16·8 17·8 24·5 26·1rating for 3·0 sec kA 1·3 2·0 2·9 3·9 5·6 7·8 9·2 9·7 10·3 14·1 15·1

Note 1: Short-circuit current ratings based on:Symmetrical. conductor temperature rise. 90·C to 250·C.Earth fault. steel wire armour temperature rise. 75·C to 200·C.

18

.AE%CABLES

Single-core 6350/11000 V Cable with Stranded Aluminium Conductor

Nominal Area ofConductor sq.mm 16 25 35 50 70 95 120 150 185 240 300 400 500 630Thickness of Insulation mm 3·4 3·4 3·4 3·4 3·4 3·4 3·4 3·4 3-4 3·4 3·4 3·4 34 34

Nominal effective area ofcopper wirescreen sq.mm 16 16 16 16 16 25 25 25 35 35 35 50 50 50Thickness of Oversheath mm 15 1·6 1·6 1·7 1·7 1 8 1·8 1·9 1·9 2·0 2·1 2·2 2·3 24Approximate overalldiameter mm 23 25 26 27 29 32 33 35 37 40 42 46 49 55Approximate cableweight kg/km 600 600 700 800 900 1100 1200 1300 1600 1800 2100 2600 3000 3500Minimum bending radius mm 350 400 400 450 450 500 500 550 600 600 650 700 750 850

Maximum resistanceof copper wirescreen at 20°C ohm/km 1·1 1 1 ,., tt ,., ·70 ·70 ·70 51 ·51 51 ·35 ·35 35

Maximum D.C. atresistance 20'C ohm/km 1·91 1·20 ·868 ·641 ·443 ·320 ·2S3 ·206 ·164 ·125 ·100 ·0778 0605 0469of conductor "A.C. at

90-C ohm/km 2·42 1·S4 1·11 ·821 ·S69 ·409 ·324 ·264 ·211 ·160 ·129 ·102 ·0799 ·0633

"Inductance mH/km ·505 472 ·441 ·422 ·398 382 ·365 '358 ·344 ·331 ·321 ,313 ·304 ·288"Reactance at 50 Hz ohm/km ·158 ·148 '138 ·132 ·125 ·120 ·114 ·112 ·108 ·103 100 ·098 ·095 090Impedance at 90'C ohm/km 2·43 1 ·55 1 ·12 ·832 ·583 ·426 ·344 ·287 ·237 ·190 ·163 ·141 ·124 ·1 0

MaximumCapacitance micro F/km ·200 ·230 ·250 280 ·310 ·350 ·380 ·410 ·450 500 ·540 ·600 660 780Max. charging currentat normal voltageand frequency amp/km 40 ·45 49 ·54 ·61 ·69 ·75 ·81 88 ·98 1·07 1 19 1 31 1·53

e.Sustainsd laidcurrent rating direct amp 92 115 140 165 200 240 275 305 345 400 450 520 590 670(based on in single-standard wayconditions on ducts amp 91 115 140 165 200 240 270 300 340 395 445 510 570 650page 16). In air amp 98 130 155 185 235 285 330 375 430 510 585 710 810 960

'Maximum for 0·2symmetrical sec kA 3·2 5·2 7·2 9·7 14·1 19·5 24·7 30·3 38·1 50·1 > 60 > 60 > 60 >60short-circuit for 1·0current sec kA 1·4 2·3 3·2 4·3 6·3 8·7 11·0 13·5 17·0 22·4 28·1 35·9 45·3 58·5rating for 3·0

sec kA 0'8 1·3 1·8 2·5 3·6 5·0 6·3 7·8 9·8 12·9 16·2 20·7 26·1 33·7

'Maximum for 0·2earth-fault sec kA 3·2 4·7 4·7 4·7 4·7 7·4 7·4 7·4 10·3 10·3 10·3 1S·0 1S·0 15·0short-Circuit for 1·0current sec kA 1·4 2·1 2·1 2·1 2·1 3·3 3·3 3·3 4·6 4·6 4·6 6·7 6·7 6·7rating for 3·0

sec kA 0·8 1·2 1·2 1·2 1·2 1·9 1·9 1·9 2·7 2·7 2·7 3·9 3·9 3·9


0Cables in touching trefoil or trefoil ducts.

Note 1: Short-CIrcuit current ratings based on:Symmetrical. conductor temperature rise. 90'C to 2S0·C.Earth fault. copper wire screen temperature rise. 8S'C to 160·C.

19

\EI power cables

Ihree-core 6350/11000 V Cable with Stranded Aluminium Conductors

Nominal Area of Conductor sq.mrn 16 25 35 50 70 95 120 150 185 240 300Thickness of Insulation mm 3·4 3·4 3·4 3·4 3·4 3·4 3·4 3·4 3·4 3·4 3·4

Thickness of copper screen tape mm ·076 ·076 ·076 ·076 ·076 ·076 ·076 ·076 ·076 ·076 ·076Thickness of extruded bedding mm 1·2 1·3 1·3 1 ·4 1 ·4 1·5 1 ·6 1·6 1·7 1 8 1 ·9Armour wire diameter mm 2·0 2·5 2·5 2·5 2·5 25 2·5 2·5 25 3·15 3·15Thickness of oversheath mm 2·3 2·5 2·5 2·6 2·8 2·9 3·0 3·1 3·2 34 3·6Approximate overall diameter mm 50 54 56 59 64 68 72 75 79 87 92Approximate cable weight kg/km 3400 4300 4600 5100 5700 6400 7100 7700 8500 10800 12100

Minimum bending radius mm 600 650 700 750 800 850 900 900 950 1050 1150Maxrmurn armour resistance 20'C ohm/km ·87 65 ·61 ·58 ·54 ·51 ·48 ·45 43 31 i ·29

Maximum resistance D.C. at 20'C ohm/km 1·91 1·20 ·867 ·641 ·443 ·320 ·253 ·206 ·164 ·125 ·100of conductor A.C. at 90'C ohm/km 2·42 1·53 1·11 ·822 ·568 ·410 ·325 ·264 ·211 ·161 130

Inductance mH/km ·449 '418 ·390 ·372 ·351 ·334 ·319 ·310 ·300 ·289 ·280Reactance at 50 Hz ohm/km ·141 ·131 ·122 ·116 ·110 ·104 ·100 '097 ·094 ·090 ·087Impedance at 90°C ohm/km 2·42 1·53 ,., 1 ·830 ·578 ·422 ·340 ·281 ·230 ·184 ·156Maximum capacitance micro Flkm ·200 ·230 ·250 ·280 ·310 ·350 ·380 ·410 ·450 ·500 ·540Maximum charging current at normalvoltage and frequency amp/km ·40 ·45 ·49 ·54 ·61 ·69 ·75 ·81 ·88 ·98 1·07

Armour loss at 50 Hz andat maximum laid direct current rating kW/km 0·1 0·1 0·2 0·3 0·5 0·8 1 ·2 1·6 2'1 3·6 5·1

Sustained current rating laid direct amp 86 "0 130 155 190 225 260 290 325 370 425(based on the standard in single-way ducts amp 73 93 110 130 160 190 215 245 275 325 365conditions on page 16). in air amp 86 110 135 160 200 240 280 315 360 425 485

'Maximum symmetrical for 0·2 sec kA 3·2 5·2 7·2 9·7 14·1 19·5 24·7 30·3 38·1 50·1 > 60short-circuit current for 1·0 sec kA 1·4 2·3 3·2 4·3 6·3 8·7 11·0 13·5 17·0 22·4 28·1rating for 3·0 sec kA 0·8 1·3 1·8 2·5 3·6 5·0 6·3 7·8 9·8 12·9 16·2

'Maximum earth-fault for 0·2 sec kA 3·2 5·2 7·2 9·7 . 14·1 19·5 24·7 30·3 38· 1 50·1 58·4sbort-clrcuit current for 1·0 sec kA 1·4 2·3 3·2 4·3 6·3 8·7 ",0 13 5 17·0 22·4 26·1rating for 3·0 sec kA 0·8 1·3 1·8 2·5 3·6 5·0 6·3 7·8 9·8 12·9 I 15·1

I

Note 1: Short-circuit current ratings based on:Symmetrical. conductor temperature rise. 90'C to 250·C.Earth fault. steel wire armour temperature rise. 75'C to 200·C.

20

Specification 19/33 kV LinkeX Cable to IEC 502-1

Conductors are plain annealedcopper or alur-uruurn cornplvinqwith 8S.6360.

Conductor screening IS a layer ofextruded semi-conducting com-pound having a nominal thicknessof 0·7 mm.

Insulation consists of cross-linkedpolyethylene which is applied byextrusion to form a compacthomogeneous layer. The averagethickness of the insulation is notless than 8·0 mm.

Core Screen consists of a layer ofextruded semi-conducting com-pound, a semi-conducting tape anda metallic layer. The metallic partwill be plain copper wires plus acounter helix of plain copper tapefor single-core cable and plaincopper tape only for multi-corecable.

Laying-Up The screened cores ofmulti-core cables are laid up withSUitable fillers to form a compactCircular assembly. A suitable binderIS applied over the laid up cores.

Bedding consists of an extrudedlayer of black PVC compound corn-plvmq with the requirements ofType 9 to 8S.6746.

Armour Multi-core cables arearmoured with galvanised steelwires. These give the cablestrength and also act as a low resis-tance earth return conductor. Whilesingle-core cables are not normallyarmoured, non-magnetic armour ofaluminium wire or strip is available ifrequested.

Oversheath consists of anextruded layer of black PVC com-pound complying with the require-ments of Type 9 to 8S.6746.

Bending Radii During Installation,lInkeX cables should not be bent toa radius smaller than that given Inthe appropriate table.

Dimensions and Weights given inthe tables on Pages 22-25 areapproximate.

Other Constructions It is possibleto supply cables with constructionsother than mentioned above,Indeed minor changes may bemade at any time enabling us tomaintain an economically pricedcable. as the relative material pricesvary.

Sustained Current Ratings (50 HzA.C.)Current ratings are given for thethree customary methods of instal-lation: laid direct In ground. in ductsor in air.

Generally. the current rating will bereduced if there is a variation fromthe Standard conditions. The ratingfor most conditions can' be calcu-lated by multiplying the sustainedcurrent rating by the factor(s) givenIn the appropriate adjustmenttable(s) on Pages 26-29.

Standard ConditionsThe following conditions have beenused to calculate the current ratingsgiven in the tables:Thermal resistivityof soil (g)- '·2·C mM!Standard groundtemperature 15·CAmbient airtemperature = 25'CMaximumconductortemperature- = 90·CDepth of burial, from ground sur-face to centre of cable. centre ofduct or to centre of trefoil group ofcables or ducts = 0·8 m

A'BTCABlfS

Bonding Screens will normally beearthed at the terminations.

Overload ConditionsCross-linked polyethylene cablescan, Without undue detriment.safely operate at an Increased con-ductor temperature of 130·C sub-ject to a maximum aggregate periodof 36 hours per annum.The perrnissrble current ratingunder overload conditions IS givenby rnultiplvmq the sustained currentrating by the factor given In theappropriate adjustment table onPages 26-29.

Short-Circuit Current RatingsIn addition to the normal sustainedcurrent ratings. consideration mustalso be given to short-circuit ratingswhen selecting cable sizes. Ratingsfor given durations are listed in thetables on Pages 22-25.

Note: The following formula can beused to obtain the value of short-circuit current. I. in kA for any timet secs between 0.2 and 3.0seconds:

I.I=,!t',

where I. = short-circuit current InkA for 1·0 second.

·,f cables are bUried In the ground and loaded con-tonuously. consrderanon should be gIven to thepossrbrhrv of a local oncrease In 5011 thermalreSIStIVIty due to morsture mIgration, makIng Itdesirable to reduce the rnaxrmum conductoroperatong temperature to 80·C. A conductoroperating temperature of 90·C ISonly recommendedIf the thermal reSISllvlty of the 5011 In the drycondition. IS known and 15 used In the calculationof the current ratong.S•• Pages 26-29 for variations In standard con-ditions.

21

AEI power cables

Single-core 19000/33000 V Cable wrth Stranded Copper Conductor

Nominal Area of Conductor sq.mm 50 70 95 120 150 185 240 300 400 500 630Thickness of Insulation mm 8·0 8·0 8·0 8·0 . 8·0 8·0 8·0 8·0 8·0 8·0 8·0

Nominal effective area of copper wire screen sq.mm 16 16 25 25 25 35 35 35 50 50 50Thickness of Oversheath mm 2·0 2·0 2·1 2·1 2·2 2·2 2·3 2·4 2·5 2·6 2·7Approximate overall diameter mm 38 40 43 44 46 48 51 53 57 60 66Approximate cable weight kg/km 1600 1900 2300 2600 2900 3500 4100 4800 5900 7000 8600Minimum bending radius mm 800 850 950 950 1000 1100 1100 1200 1200 1300 1400

Maximum resistance of copper wirescreen at 20=C ohm/km 11 11 ·70 70 ·70 ·51 ·51 ·51 ·35 35 ·35

Maximum resistance D.C. at 20'C ohm/km 387 ·268 ·193 ·153 ·124 ·0991 ·0754 ·0601 ·0470 ·0366 ·0283of conductor "A.C. at 90'C ohm/km ·493 ·341 ·246 ·196 ·159 ·128 ·0976 ·0785 ·0623 ·0496 0400

"I nductance mH/km ·490 ·462 ·442 ·423 ·410 ·397 ·380 ·367 ·356 ·344 ·325"Reactance at 50 Hz ohm/km ·153 ·145 ·138 ·132 '128 ·124 ·119 ·115 ·111 '108 ·102Impedance at 90·C ohm/km ·516 ·371 ·282 ·236 ·204 ·178 ·154 ·139 ·127 ·119 ·110

Maximum capacitance micro F/km ·160 ·170 '190 ·200 ·220 ·230 ·250 ·270 ·300 ·330 ·380Maximum charging current at normalvoltage and frequency amp/km ·90 1·00 HO 1-18 1·26 1·35 1-48 1·61 1·75 1·91 2·20

0SlIstained current rating laid direct amp 215 265 315 355 400 450 520 590 670 750 860(based on standard in single-way ducts amp 215 260 310 355 395 445 520 580 660 750 850conditions on page 21) in air amp 260 320 390 450 510 590 690 790 910 1040 1210

'Maximum symmetrical for 0·2 sec kA 15·2 21·9 30·4 38·5 47·3 59·3 >60 >60 >60 >60 >60short-circuit current for 1 ·0 sec kA 6·8 9·8 13·6 17·2 21-1 26·5 34·9 43·7 55·9 > 60 >60'rating for 3·0 sec kA 3·9 5·6 7·8 9·9 12·2 15·3 20·1 25·2 32·3 40·7 52·6

'Maximum earth-fault for 0·2 sec kA 4·7 4·7 7·4 7·4 7·4 10·3 10·3 10·3 15·0 15·0 15·0short-circuit current for 1·0 sec kA 2·1 2·1 3·3 3·3 3·3 4·6 4·6 4·6 6·7 6·7 6·7rating for 3·0 sec kA 1·2 1·2 1·9 1·9 1·9 2·7 2·7 2·7 3·9 3·9 3·9


eCabtes in touching trefoil or trefoil ducts.Note 1: Short-circuit current ratings based on:

Symmetrical, conductor temperature rise, 90·C to 250·C.Earth fault, copper wire screen temperature rise, 85·C to 200·C.

22

AB:!:CABLES

Three-core 19000/33000 V with Stranded Copper Conductors

Nominal Area of Conductor sq.rnrn 50 70 95 120 150 185 240 300Thickness of Insulation mm 8·0 8·0 80 8·0 8·0 8·0 8·0 8·0

Thickness 01 copper screen tape mm ·076 076 076 076 076 ·076 076 076Thickness of extruded bedding mm 1 8 1·8 1·9 2·0 2·0 2·1 22 23Armour wire diameter mm 3·15 315 3·15 3·15 3·15 3'15 3·15 3·15Thickness of oversheath mm 3·4 3·5 3·7 3·8 3·9 4·0 4·2 4·3

Approximate overall diameter mm 85 89 94 97 101 105 111 117Approximate cable weight kg/km 10150 11350 12800 14050 15350 17100 19700 22300Minimum bending radius mm 1600 1700 1700 1800 1900 1900 2000 2200

Maximum resistance of conductor D.C. at 20°C ohm/km ·387 ·268 ·193 153 ·124 ·0991 ·0754 ·0601A.C. at 90°C ohm/km ·493 ·342 ·246 ·196 ·159 ·127 .0981 0792

Maximum armour resistance at 20°C ohm/km ·34 ·30 ·29 ·28 ·27 ·25 ·24 ·23

Inductance mH/km ·460 ·434 ·412 ·393 ·381 367 ·352 ·340Reactance at 50 Hz ohm/km ·144 ·136 ·129 ·123 ·119 ·115 ·110 106Impedance ohm/km .513 .368 ·277 ·231 ·199 ·171 ·147 ·132

Maximum capacitance micro F/km ·16 ·17 '19 ·20 22 ·23 ·25 27Maximum charging current at normal voltage and frequency amp/km ·90 1'00 HO 1·18 1·26 1·35 1·48 1·61Armour loss at 50 Hz kW/km 1·0 1·7 2·6 3·3 4·3 5·7 7·9 10·2

Sustained current rating laid direct amp 205 250 300 335 375 420 485 540in single-way ducts amp 180 220 260 295 325 375 430 475in air amp 225 275 330 380 425 485 570 640

'Maximum symmetrical. short-circuit for 0·2 sec kA 15·2 21·9 30·4 38·5 47·3 59·3 > 60 > 60current rating for 1·0 sec kA 6·8 9·8 13·6 17·2 21-1 26·5 349 437

for 3·0 sec kA 3·9 5·6 7·8 9·9 12·2 15·3 20'1 252

'Maximum earth -fault short-circuit for 0·2 sec kA 15·2 21·9 30·4 38·5 47·3 56·3 > 60 ::- 60current rating for 1 ·0 sec kA 6·8 9·8 13·6 17·2 21·1 26·5 31·7 33·7

for 3·0 sec kA 3·9 5·6 7·8 9·9 12·2 14·5 18·3 19·5

Note 1: Short-circuit current ratings based on:Symmetrical. conductor temperature rise, 90·C to 250·C.Earth fault. steel wire armour temperature rise. 75·C to 200·C.

23

\EI power cables

3ingle-core 19000/33000 V Cable with Stranded Aluminium Conductor

Nominal Area of Conductor sq.mm 50 70 95 120 150 185 240Thickness of Insulation mm 8·0 8·0 8·0 80 8·0 8·0 8·0

Nominal effective area of copper wire screen sq.mm 16 16 25 25 25 35 35Thickness of Oversheath mm 2·0 2·0 2·1 2'1 2·2 22 2·3Approximate overall diameter mm 38 40 43 44 46 48 51Approximate cable weight kg/km 1300 1500 1700 1900 2000 I 2300 2600Minimum bending radius mm 800 850 950 950 1000 1100 1100

Maximum resistance of copper wire screen at 20' C ohm/km,., ,., ·70 70 ·70 ·51 51

Maximum resistance of conductor D.C. at 20°C ohm/km ·641 ·443 ·320 ·253 ·206 ·164 ·125"A.C. at 90'C ohm/km ·821 ·569 ·409 ·324 ·264 ·21 ·160 I

<Inductance mH/km 490 ·462 ·442 ·423 -410 397 380 !

<Reactance at 50 Hz ohm/km ·153 '145 ·138 ·132 ·128 ·124 ·119Impedance at 90'C ohm/km ·835 ·587 ·432 ·350 ·293 ·245 ·199

Maximum Capacitance micro F/km '160 ·170 ·190 ·200 ·220 ·230 250Maximum charging current at normal voltage and frequency amp/km ·90 1·00 1·10 1-18 1·26 1·35 148

oSustained current rating (based on standard laid direct amp 165 205 245 275 310 350 410conditions on page 21) in single-way ducts amp 165 200 240 275 305 345 400

in air amp 200 250 305 350 395 455 540

'Maximum symmetrical short-circuit current for 0·2 sec kA 9·7 14·1 19·5 24·7 30·3 38·1 50'1rating for 1 ·0 sec kA 4·3 6·3 8·7 " ·0 13·5 17·0 22·4

for 3·0 sec kA 2·5 3·6 5·0 6·3 7·8 9'8 12'9

Maximum earth -fault short-circuit current for 0·2 sec kA 4·7 4·7 7·4 7·4 7·4 10·3 10·3rating for 1 ·0 sec kA 2·1 2·' 3·3 3·3 3·3 4·6 4·6

for 3·0 sec kA '·2 ,·2 '·9 ',9 '·9 2·7 2·7

-Cables in touching trefoil arrangement.

oCables in touching trefoil or trefoil ducts.

Note 1: Short-circuit current ratings based on:Symmetrical. conductor temperature rise. 9O'C to 250·C.Earth fault. copper wire screen temperature rise. 8S'C to 200·C.

24

.A.BXCABLES

Three-core 19000/33000 V Cable with Stranded Aluminium Conductors

Nominal Area of Conductor sq.mm 50 70 95 120 150 185 240 IThickness of Insulation mm 8·0 8·0 8·0 8·0 8·0 8·0 80

Thickness of copper screen tape mm ·076 076 ·076 ·076 076 076 076 I

Thickness of extruded bedding mm 1·8 1·8 1·9 2·0 2·0 21 2·2Armour Wire diameter mm 3'15 3·15 3·15 315 3·15 3·15 3 15 IThickness of oversheath mm 34 3·5 3·7 38 39 4·0 4·2

Approximate overall diameter mm 85 89 94 97 101 105 111Approximate cable weight kg/km 9150 9950 10900 11700 12450 13500 15000

Minimum bending radius mm 1600 1700 1700 1800 1900 1900 2000

Maximum resistance of conductor D.C. at 20·C ohm/km .641 ·443 ·320 ·253 206 164 -125IAC. at 90°C ohm/km ·822 ·568 '410 ·325 -264 211 161

Maximum armour resistance at 20·C ohm/km ·34 ·30 ·29 ·28 27 25 24

Inductance mH/km '460 ·434 ·412 ·393 -381 ·367 ·352Reactance at 50 Hz ohm/km ·144 '136 ·129 ·123 ·119 ·115 -110 IImpedance ohm/km '834 ·584 ·429 ·347 -289 ·240 -194

Maximum capacitance micro F/km ·16 ·17 ·19 ·20 ·22 ·23 ·25Maximum charging current at normal voltage and frequency amp/km ·90 1-00 1·10 1·18 1 ·26 1 ·35 1 48

Armour loss at 50 Hz kW/km 0·6 1 ·0 1 ·5 2·1 2·6 3-5 4·8

Sustained current rating laid direct amp 160 195 230 265 295 330 380in single-way ducts amp 140 170 200 230 255 295 340in air amp 175 215 260 295 335 380 445

'Maximum symmetrical short-circuit for 0·2 sec kA 9·7 14·1 19·5 24·7 30·3 38·1 50'1current rating for 1 ·0 sec kA 4·3 6·3 8-7 "-0 13·5 17-0 22·4

for 3·0 sec kA 2·5 3·6 5-0 6-3 7-8 9·8 129

'Maximum earth-fault short-circurt for 0-2 sec kA 9·7 14·1 19-5 24·7 30·3 38·1 50'1current rating for 1 ·0 sec kA 4·3 6·3 8·7 "-0 13-5 17'C 22·4

for 3·0 sec kA 2·5 3'6 5-0 6·3 7·8 9·8 12·9

Note 1: Short-circuit current ratings based on:Symmetrical. conductor temperature rise. 90'C to 250·C.Earth fault. steel wire armour temperature rise. 75'C to 2oo'C.

25

AEI power c.ble.

Adjustment TablesThe following tables of adjustment factors are to be applied to sustained ratings when installation conditions vary from the Standard.

Cables laid direct in groundVariation in soil thermal resistivityTwin and Multicore

Nominal area Value of g. degree C m/Wof conductor

sq.rnrn 0·7 0·8 0·9 1·0 1·5 2·0 2·5 3·0

16 1-16 1·12 1·08 1·05 0·93 0·84 0·77 0·7225 1-17 1·13 1·09 1·05 0·93 0·83 0·77 0·71

35 1-17 1-13 1·09 1·06 0·92 0·83 0·76 0·7150 H7 1·13 1·09 1·06 0·92 0·83 0·76 0·7170 1-18 1·14 1·09 1·06 0·92 0·83 0·75 0·70

95 1-18 1·14 1·09 1·06 0·92 0·83 0·75 0·70120 1-19 1·14 1·10 1·06 0·92 0·82 0·75 0·69150 H9 1·14 HO 1·06 0·92 0·82 0·75 0·69

185 1·19 1·14 HO 1·06 0·92 0·82 0·74 0'69240 1·20 1-15 HO 1·07 0·92 0'81 0·74 0·69300 1·20 1-15 ,.,0 1·07 0·92 0·81 0·74 0·69

Single core


sq.rnrn 0·7 0·8 0·9 1·0 1·5 2·0 2·5 3·0

50 1·21 1·16 ,., 1 1·07 0·91 0·81 0·73 0·6870 1·22 1·16 ,.,2 1·07 0·91 0·81 0·73 0·6895 1·22 ,.,6 1·12 1·07 0·91 0·81 0·73 0·68

120 1·22 H6 ,.,2 1·07 0·91 0·81 0·73 0·68150 1·22 1-16 H2 1·07 0·91 0·81 I 0·73 0·68185 1·22 1·17 1-12 1·07 0·91 0·81 0·73 0'68

240 1·23 1·17 1·12 1·07 0·91 0·80 0·73 0·68300 1·23 ,.,7 ,.,2 1·07 0·91 0·80 0·73 0·68400 1·23 1·17 1-12 1·07 0·91 0·80 0·73 0·67

500 1·23 1·17 1-12 1·07 0·91 0'80 0·73 0·67630 1·23 1·17 ,.,2 1·07 0·91 0·80 0·73 0·67

26

AE%CABLES

Variation In ground temperature and/or conductor temperatureConductor I Ground Temperature, 'c

Temperature, I'C 10 15 20 25 30 35 40

90 1·03 1·00 0·97 0·93 0·89 0·86 0·8280 0·98 0·95 0·91 0·87 0·83 0·79 0·74

130· ,.,9 1·16 ,.,4 ",1 1·08 1·06 1·03

• Limited use - see note on overload.

Variation In depth of laying

600/1000 Volt Cables 1900/3300 Volt to19000/33000 Volt Cables

Depth ofLaYing, up to 70 sq.mm to Above up to AboveMetre 50 sq.mm 300 sq.mm 300 sq.mm 300 sq.mm 300 sq.mm

0·5 1·00 1·00 1·00 - -0·6 0·99 0·98 0·97 - -0·8 0·97 0·96 0·94 1·00 1·00

1·0 0·95 0·94 0·92 0·98 0·971·25 0·94 0·92 0·90 0·96 0·951·50 0'93 0·91 0·89 0·95 0·94

1·75 0·92 0·89 0·87 0·94 0·9220 0·91 0·88 0·86 0·92 0·902·5 0·90 0·87 0·85 0·91 0·89

3·0 0·89 0·86 0·83 0'90 0·88or more

27

AEt power cables

Cables laid in ductsVariation in soil thermal resistivityTwin and Mult rcor e

I Nominal area Value of g. degree C m/Wof conductor Isq.rnrn 0-7 0-8 0-9 1-0 1-5 2-0 2-5 3-0

16 1-06 1-04 '-03 1-02 0-97 0-92 0-88 085

I25 ',06 1-05 '-03 1-02 0-96 0'92 0-88 0-84

35 1-06 1-05 1-03 1-02 0-96 0-92 0-87 0-8350 1-07 1-05 1-03 1-02 0-96 0-91 0-87 0-83 !70 1-07 1-05 1-04 1 02 0-96 0-91 0-86 0-82 I95 1-07 1-06 1-04 1-02 0-96 0-91 0-86 0-82

120 '-08 '-06 1-04 '-03 0-95 0-90 0-85 0-81150 1-09 1-06 '-04 1-03 0-95 0-90 0-85 0-80

185 '-09 '-07 1-05 1-03 0-95 0-89 0-84 0·80240 1-09 '-07 1·05 ',03 0·95 0·89 0-84 0-79300 1"0 '-07 ',05 1·03 0-95 0·88 0'83 0-78

Single core


sq.mrn 0-7 0-8 0·9 1-0 , ·5 2-0 2-5 3-0

50 ,.,, , -08 , -06 '-04 0-94 0-87 0-82 0-7770 ,.,2 '-09 , -06 1-04 0-94 0-87 0·8' 0-7695 ,.,2 , -09 '-06 , -04 0·94 0-87 0-8' 0-76

120 ,.,3 HO , -07 , -04 0·94 0-86 0'80 0-75'50 ,.,3 HO , -07 '-04 0'94 0·86 0·80 0·75'85 ,.,3 HO , '07 , -04 0·93 0·86 0-79 0-75

240 ,.,4 ,.,, , -07 , '04 0-93 0-86, 0-79 0·74

300 ,.,4 1-" , -08 , -OS 0-93 0-85 0·79 0-74400 ,.,4 , -t t , '08 , -OS 0-93 0·85 0-78 0-73

500 ,.,5 , -t , '-08 , -OS 0-93 0-85 0-78 0-73630 ,.,5 ,.,2 '-08 , -os 0·93 0·84 0·78 0-72

28

AP,&CABlES

Variation in ground temperature and/or conductor temperature

Conductor Ground Temperature. "CTemperature.

i'C 10 15 20 25 30 35 40

90 1·03 1·00 0·97 0·93 0·89 086 0·8280 0·98 0·95 0·9' 0·87 0·83 079 0'74

130· 1"9 1'16 ,., 4 , '1 , , ,08 , '06 1'03


Variation in depth of laying'900/3300 Volt to

Depth of Laying 600/'000 Volt Cables '9000/33000 Volt CablesMetre

Single-core Multi-core Single-core Multi-core

0·50 , ·00 , ·00 - -0·60 0·98 0·99 - -0·80 0,95 0·97 , ,00 , ·00

, ·00 0,93 0,96 0·98 0·99',25 0,90 0·95 0·95 0·97, '50 0·89 0,94 0·93 0·96, ,75 0,88 0·94 0·92 0·952·0 0·87 0·93 0·90 0,942·5 0,86 0·93 0'89 0,93

3,0 0'85 0·92 0·88 0·92or more

Cables in airVariation in ambient temperature and/or conductor temperature

Conductor Air Temperature. QCTemperature.

QC 25 30 35 40 45 50 55

90 , ·00 0·95 0·9' 0'86 0·81 0·75 0·70'30· , ,20 1-18 ,., 5 ,.,3 ,.,, , ·08 , ·06


29

30

.ARTCABlES

Straight Joint Voltages up to 600/1000 V

The range covers all sizes and typesof single dnd rnulncore t.mkexarmoured and unarmoured cableup to and Including 600/1000 V.

The conductors are Joined usmqmechanical connectors, compres-sion ferrules or grip type (weakback) soldered sleeve depending onconductor type and size.

Primary connector Insulation IS awrap round pad or preformed tube.

A mechanical bond for armour con-nnurtv IS Included In all jomts forarmoured cable, with compressionnngs located beneath the armour atthe bonding clamps to preventmechanical pressure on the cablebeddmq/msulation.

The plasnc protection box IS filledwith a resin compound whichrequires no heating or topping up.

\\

o/J/

When ordering give full details ofmain cablesJOints for use between dissimilarcables are available on a specialmake baSIS.

1. Armour Bond2. Primary Insulation3. Conductor Connection4. Cold Pouru '1 ReSin Compound5. Plasitc Box'

31

AEI power cables

Multi Service Joint Safe-T TypeConnector for Live Jointing

A range of JOints to connect rnuln-core service cables to rnulucoremain cables (armoured or unar-mouredl, the conductors of themain cable being uncut. SUitable forup to 600/1000 V only.Three or four core 70 to 300 sq. mm.main and up to 35 sq.mm. service.Solid aluminium or stranded copperconductors.

A 'Safe-T' multi service connectorcan 'provide facilities to take two

Voltages Up to 600/1000 V

service conductors from each coremaking It possible to have a max-.rnurn of SIX twrn or two four-coreservices from the main cable In oneJOint.Also live jomtrnq can be carnedout In safety as all service connec-nons can be completed before theInsulation of the main cable ISremoved by means of a cuttingscrew operated by an Insulated tool.

A mechanical bond IS provided forarmoured cables, to connect the

main and service armours.The plastic protection box IS filledwith a resin compound that requiresno heating or topping up

r

When ordering give full details ofmain and service cables.Joints for cables outside the aboveranges or where live jOlntlng is not arequrrernent. individual mechanicalor soldering service fittings areavailable.

32

1. Armour Bond2. Ring Connector3. Cold Pouring Resin Compound4. Plastic Box

Terminations - Flexible Type'

Lightweight flexible terminationsfor 2. 3 or 4 core cables surtable fordirect exposure to the weather.Ideally suited to Installations wherethe termination is not intended tosupport the weight of outgoingconductors or heavy connector fit-tings e.g. for connecting PVC or Lin-keX cable to bushings or overhead

line conductors and. provrdinq thecable IS adequately supported.below the termination. they canusually be suspended without theneed for any additional supportingstructure.The heat shnnkable matenals meetthe specmcation parameters of ESI09/11.

2}--~

.AE:J:CABLES

Vo~tag~!;Up to 600/1000 V

This system is especially usefulwhen PILC and l.mkex cables areused on the same site, since a simi-lar design is available for the former.offering the advantage of a unifiedmethod of termination for bothcable types.

1. Connector2. Heat Shnnk Transmon Sleeve3. Armour Support Ferrule4. Heat Shrink Glove5. Worm Drive Clips6. Mastic Compound

33

Accessories recommended forAEI LinkeX 3.8/6.6kV and above

The core screens of high voltage LinkeX cables con-sist of a semi-conducting layer, a layer of semi-conducting tape and a metallic layer.IT IS ESSENTIAL THAT THEY ARE REMOVED WHENJOINTING OR TERMINATING.

If 11kV cables are to be used at " 9/3.3kV or lower,low tension accessories may be used provided thatthe conducting core screens are removed from theexposed core(s).

AB:!:CABlES

Straight JointSingle and Three Core Cables

Thrs modern joir-t . ~:1;E: S designedo reduce jcrnnnq time and simplify

procedures.The range covers all single andhree core cable sizes. Conductors

can be JOined with mechanical,compression or sweated connec-tors. Insulation ISby means of looseittlng moulded rubber housmqs

which do not depend on the proper-ties of the filling compound for theirelectrical Integrity, and are factorytested to ensure reliable long termoperation

Voltages Up to 8.75/15 kV

The JOint IS surrounded by a steelmesh screen which provides thenecessary earthed metallic coverand separate continuity bars formthe earth continuity path betweenthe cable armours. Cold pouringresin - based material ISused as thefilling compound and requires noheating or topping up.Versions are available for JOiningLlnkeX cable to all types of paperInsulated cable.

Sizes:Due to the large range taking capa-bility of the loose fitting rubberhousrnqs only two sizes arerequired for the full range of cablesizes up to 300 sq.mm.

35

AEI power cables

Straight JointSingle and Three Core Cables

Voltages up to 19/33 kV

This IS a general purpose straightJOint requiring no unusual JOlntlngskills for correct Installation. Therange covers all single and threecore cable sizes.The conductors are JOined with acompression connector. Self amal-gamating tapes are then applied togive a fully screened Insulation rein-statement which does not dependon the properties of the filling com-

pound for ItS electrical Integrity.The jomt IS surrounded by a coppermesh screen which provides thenecessary earthed metallic cover,and a separate armour continuitybond forms the earth continuitypath between the cable armours.The filling compound ISa cold pour-Ing resin-based material thatrequires no heating or topping up.

1. Polystyrene Box2. Polyurethane Resin Compound3. Self-Amalgamating Tape4. Conductor Ferrule5. Semi-Conducting Tape6. Copper Mesh Screen7. Armour Continuity Bond

36

.AEXCABI£S

Outdoor Termination Rigid Type

This form ISan economical termina-tion for three core cables only andcomes as a complete kit with allcomponents Including a two partpolyurethane resin compoundpacked In a cardboard box for easytransrt and storage. The terminationISof strong lightweight construction

Terminations available asfollows:11 kV - Up to 300 Sq.mm.15 kV - Up to 300 Sq.mm.20 kV - Up to 300 Sq.mm.33 kV - Up to 185 Sq.mm.

Voltages Up to 19/33 kV

filled with a tough resilient high vol-tage polyurethane resin compoundand Includes rubber moulded shedswhich provide a weather and vandalresistant cladding. Rigid location ofoutgoing connectors removes theneed for any additional insulatorsupports.

The system IS especially usefulwhen PILe and LlnkeX cables are Inuse on the same site since a Similardesiqn IS available for the formeroffering the advantage of a unifiedmethod of termination for bothcable types.

37

~EI power cables

Outdoor Termination - Rigid Type

This IS an econorruca' errrunatronor single core cables or Individual

cores of three core cables andcomes as a complete kit with allcomponents including a two partpolyurethane resin compound. Thesealing end ISof strong lightweightconstruction Including rubbermoulded sheds which provide aweather and vandal resistant clad-ding

38

Top and bottom castings are ofaluminium the baseplate and rigidlocation of the outgoing connectorsobviating the need for any additionalinsulator support

..•... .'

Voltages Up to 19/33 kV

Sizes:1. Up to 240 Sq.mm.2. 300 to 1000 Sq.mm.

Voltages: ~36 kV

OVERSEAS REPRESENTATION ARTCABlES

-he Power Caore DIvISion 1$ represented by he following GEC Overseas Companies

AUSTRALIAGEC Australi,j L'rr'llled2 Glffnock Avenue

orth Ryde ~Sw 21:3AustraliaTX. AA 26CeOCables Eiecequro, ortn RydeTel B87·6222

NEW ZEALAND • tII~ hURIDESGEC (New Zealand) i..ImltedPO Box 50 244Prosser StreetElsdonPororruaNew ZealandTX: NZ 3421Cables: Gechead. WellingtonTel: 75 409BANGLADESH

AEI·Engllsh Electric of Bangladesh Ltd.71 Dukusha Commercial AreaPO Box 248MotqheelDhakaBanglaoeshTX 642774 GECB BJCables ASSOCELECT DHAKATel 233174.231019.238844

PAKISTAN. AFGHANISTANGeneral Products Group Ltd239 Staff LinesFanrna Jlnnah RoadKarachl4PakistanTX. 24179 GPG PKCables: Products KarachlTel: 513541-3

CANADAGEC Canada Ltd5112 Timoertea Blvd

issrssauqaOntano L4W 2S5TX. 06-961280 GEC CAN MSGACables: Enetecnco TorontoTel: 416624 8300

EIREGEC Oistnbutors (Ireland) Ltd.15-19 Hendnck StreetDubhn 7EireTX 25658 GECD ElTel: 775413

SINGAPORE. INDONESIAThe General Electnc Co. of Singapore Private Ltd.Magnet HousePO. Box 4046Bukrt TimahSingapore 9158TX: RS 21508 or RS 36730Cables: GEC SINGAPTel: 663011

HONG KONGhe General Electnc Co of Hong Kong Ltd.

CC Wu BUilding302-308 hennessy RoadWanchalPO Box 15 GPOHong KongTX 7309B G HONG HXCables. GEC HONG-HONG KONGTel. 5-8938282

SOUTH AFRICA. ANGOLAGEC Cables Co.Helvetia House

. Greenvale RoadWilbart. GerrmstonTX: 4-27815 SACables: GECDISTel: (011) 53 9240

U.S.A.The English Electnc Corporation102 Midland AvenuePort ChesterNew York 10573U.s.A.TX: 137376Tel: 9149377450

INDIA AND NEPALhe General Etectnc Company of India Ltd.

Magnet House6 Ctuttararuan AvenueCalcutta 700 072IndiaTX. 021 5033Cables: KILOWATI CalcuttaTel 27-8500 27·2880

ZAMBIA. ZAIRE (KATANGA)GEC Zambca Ltd.PO. Box 71890Magnet HouseArusha StreetNdolaZambcaTX: lA 33760Cables: FaradTel: 4251/213/4MALAYSIA

The General Electnc Company of Malavsra Sdn. Bhd.Jalan 215 TemplerPO Box 225 Jalan SultanPetahng JayaSelangorMalaYSiaTX: MA 37617Cables: GEC LUMPURTel: 03571188

ZIMBABWEGEC Zimbabwe (Pvt) Ltd.Cam RoadGrarutesideHararePO. Box 845. HarareTX: 2177 GEC NVTel: 793641

NETHERLANDSGEC Benelux OfficeAntwerpseweg 12803 PB GoudaTX: 20372 GEC UK NLTel: 1820 35222

39

AEI power cables

Information Required with Enquiry and Order

The number ot r,€j -elevant Brit-Ish Standard, 'e SS 5467

2. Length of cable r<;:qUlredand, IfImportant, inurvrdual drumle,lgths

3 Vol age designation4 umber of cores.5. Conductor size and, where ap-

phcable, size of reduced neutralconductor

6. Conductor material, I.e. copperor aluminium

7 Type of finish, I.e.(a) Unarmoured(bl Armoured with steel wire(c) Armoured with aluminium

strip(dl Whether lapped or extruded

bedding (where applicable ISrequired for armouredcables.

8. Any ott-er special requirements.9. I f conductor size is not

known-then details of lengthsof Individual cable runs, electri-cal loads to be supplied andproposed Installation methodsfor each cable

Health and Safety at Work Act 1974Statement to Users

Havinq regard to the provisions ofSection 6 of the Health and Safety atWork Etc. Act 1974, the follOWingInformation ISgiven with the objectof augmenting other Informationreadily available such as In BritishStandards, LE E. Wiring Regula-tions, and where appropriate ourown catalogues, so that the obliga-tions to all concerned with the hand-ling and use of our products in termsof the above Act may be met as fullyas IS reasonably practicable.The products with which this noticeISconcerned are Electnc Cables andassociated products As far as weare aware, the correct use of suchproducts does not give rise to anyrisk to health. We do, however,maintain a continuing watch onworld developments in the field of.cables to ensure that so far ae isreasonably practicable our productsare so destqned and constructed asto be safe and without risk to healthwhen properly used.It IS Important that the type of pro-duct specified when ordering is

40

SUitable for the Intended usage. TheCompany Will be pleased to advrseon the most SUitable design andprotection for the Intended operat-Ing and environmental conditions.The cables and associated productsmanufactured by trus Companyshould be Installed by, or under thesupervision of, competent person-nel in accordance with goodengineering practice, establishedcodes 0 f practice, statu to ryrequirements and the I.E.E. WiringRegulations as applicable, andwhere appropriate in accordancewith any Instructions specificallvadvised by the Company.The melting, heating, burning orwelding of cables can give rise tocertain health and safety risks. Dur-ing cable jointrnq and terminating, orin the disposal of cable scraps, allreasonable care should be taken toavoid' undue concentrations of cor-rosive and/or toxic fumes arismqfrom the heating of plastic and elas-tomeric insulating and sheathingcompounds, from lead sheaths aswell as flux=s. solders and plumbing

metal used in jointinq operations.It will be obvious that in certain CIr-cumstances the packaging ofcables e.g. large heavy drums, orsharp edqes of metal componentsof cables could constitute a safetyhazard and Individuals should there-fore take due care for their ownsafety when handling these item .The springing of the steel bindirstraps or the dangers arising fromprojecting nails used to retain bat-tens around the drums or contain-ers are particular examples to whichwe would draw your attention.You are requested in accordancewith the provisions of the Act totake such steps as are necessary toensure that the appropriate infor-mation of the proper use and hand-ling of our products, is made avail-able to anyone who may purchaseor otherwise acquire from -ou suchproducts for use in their own work-place.If any specific hazard is associatedwith a particular product, advice onthe necessary precautions will beprovided.

Documents

AEI LinkeX Cross-linked Polyethylene Insulated Power Cables