EDS 02-0034 33kV Single Core XLPE...

Document Number: EDS 02-0034

Version: 4.0

Date: 16/02/2016

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ENGINEERING DESIGN STANDARD

EDS 02-0034

33KV SINGLE CORE XLPE CABLES

Network(s): EPN, LPN, SPN

Summary: This standard details the technical and practical information required for the safe and effective use of the new range of 33kV Single Core XLPE Cable to be used by UK Power Networks.

Owner: Paul Williams Date: 16/02/2016

Approved By: Sotiris Georgiopoulos Approved Date: 11/04/2016

This document forms part of the Company’s Integrated Business System and its requirements are mandatory throughout UK Power Networks. Departure from these requirements may only be taken with the written approval of the Director of Asset Management. If you have any queries about this document please contact the author or owner of the current issue.

Applicable To

UK Power Networks External

All UK Power Networks G81 Website

Asset Management Contractors

Capital Programme ICPs/IDNOs

Connections Meter Operators

HSS&TT

Network Operations

UK Power Networks Services

Other

33kV Single Core XLPE Cables Document Number: EDS 02-0034

Version: 4.0

Date: 16/02/2016

© UK Power Networks 2016 All rights reserved 2 of 16

Revision Record

Version 4.0 Review Date 11/04/2021

Date 16/02/2016 Author Paul Williams

Why has the document been updated - Document updated reflect the change to a design with aluminium conductors and aluminium wire screens and a change to supplier that have been technically approved to supply the new cable type.

What has changed - 1000mm2 and 1200mm

2 aluminium conductors introduced as replacement for

existing 630mm2 and 800mm

2 copper conductors.

All Sections and appendices updated to show the new cable design and conductor sizes.

Document transferred onto a new template and rules applied

Version 3.0 Review Date 30/06/2015

Date 29/06/2012 Author Michael Sinclair

Added Winter Ratings and checked for suitability for publication as a G81 document

Version 2.3 Review Date

Date 22/08/2011 Author Don Fossett

Reclassified from EI to EDS


Date 14/02/2011 Author Don Fossett

Document rebranded



Review date extend to match duration of current Procurement Contract



EDF Energy SAP commodity codes amended



Original Issue


Version: 4.0

Date: 16/02/2016


Contents

1 Introduction ............................................................................................................. 4

2 Scope ....................................................................................................................... 4

3 Details ...................................................................................................................... 4

3.1 Standard Drum Details .............................................................................................. 4

4 Current Rating Table for 33kV Single Core Cables ............................................... 5

4.1 Summer Ratings ........................................................................................................ 5

4.2 Winter Ratings ........................................................................................................... 5

5 Current Rating Tables for Comparison with Existing Designs ............................ 6

5.1 Three core ‘H’ Type PILC Cables .............................................................................. 6

5.1.1 Summer Ratings – Copper Conductors ..................................................................... 6

5.1.2 Summer Ratings – Aluminium Conductors ................................................................ 6

5.1.3 Winter Ratings – Copper Conductors ........................................................................ 7

5.1.4 Winter Ratings – Aluminium Conductors ................................................................... 7

5.2 Three core Fluid Filled Cables (Lead or Corrugated Aluminium Sheath) ................... 8

5.2.1 Summer Ratings – Copper Conductors ..................................................................... 8

5.2.2 Summer Ratings – Aluminium Conductors ................................................................ 8

5.2.3 Winter Ratings – Copper Conductors ........................................................................ 9

5.2.4 Winter Ratings – Aluminium Conductors ................................................................... 9

5.3 Existing Single Core XLPE Cables – Aluminium and Copper Conductors ............... 10

5.3.1 Summer Ratings ...................................................................................................... 10

5.3.2 Winter Ratings ......................................................................................................... 10

5.5 Technical Data Sheets ............................................................................................ 11

6 Dependent Documents.......................................................................................... 12

Appendix A – Cable Ratings for Widely Used Installation Conditions .......................... 13

A.1 Laid Direct Circuits – Single Circuit .......................................................................... 13

A.2 Laid Direct Circuits – Double Circuit (both circuits loaded at the same time) ........... 14

A.3 Ducted Circuits – Single Circuit ............................................................................... 15

A.4 Ducted Circuits – Double Circuit (both circuits loaded at the same time) ................. 16


Version: 4.0

Date: 16/02/2016


1 Introduction

The purpose of this engineering standard is to provide designers, installers and operators with the necessary technical and practical information required to enable the safe and efficient use of the new range of 33kV Single Core XLPE cables in UK Power Networks (UKPN).

2 Scope

This document only covers the five main types of single core 33kV cable supplied by one of the following cable manufacturers:

Cabelte (Portugal);

Nexans (France, Greece, Norway and Turkey);

NKT Cables (Denmark);

Solidal (Portugal). The standard sizes are as follows:

300mm2 aluminium conductor single core XLPE cable with a 82mm2 aluminium wire screen and a MDPE outer sheath, with a conductive outer layer;




1200mm2 aluminium conductor single core XLPE cable with a 82mm2 aluminium wire screen and a MDPE outer sheath, with a conductive outer layer.

Note: All the above are also available with a low smoke zero halogen sheath for installation in cable tunnels, basements, etc.

3 Details

3.1 Standard Drum Details

The new range of 33kV cables will only be available from UK Power Networks Logistics – Cable Management in the following full drum lengths:

Conductor Size and Material Standard Drum Length (m) UK Power Networks

Stores Code

300mm2 aluminium 500 06140T

500mm2 aluminium 500 06141D

630mm2 aluminium 500 06142N

1000mm2 aluminium 500 06143X

1200mm2 aluminium 500 06144H


Version: 4.0

Date: 16/02/2016


4 Current Rating Table for 33kV Single Core Cables

This table provides a guide to the current ratings for 33kV single XLPE core cables. All the ratings quoted are Distribution Ratings for 1 single circuit installed in trefoil, solidly bonded only and are in accordance with Engineering Recommendation P17. The MVA ratings are for a three-phase supply. Details for multiple cable circuits are listed in Appendix A:

4.1 Summer Ratings

Conductor Area mm²

Distribution Current Rating per Circuit 900mm depth of cover, g = 1.2°C m/watt, ground/air temp = 15°

Laid Direct in Ground

Installed in Ducts

Installed in Free Air (shaded from solar radiation)

Amps MVA Amps MVA Amps MVA

300 Al 500 Al 630 Al 1000 Al 1200 Al

614 812 929

1137 1265

35.05 46.36 53.04 64.91 72.22

506 666 782 956

1062

28.89 38.02 44.64 54.58 60.63

639 866

1004 1231 1390

36.48 49.44 57.32 70.28 79.36

4.2 Winter Ratings

Conductor Area mm²

Distribution Current Rating per Circuit 900mm depth of cover, g = 1.2°C m/watt, ground/air temp = 10°

Laid Direct in Ground

Installed in Ducts

Installed in Free Air (shaded from solar radiation)

Amps MVA Amps MVA Amps MVA

300 Al 500 Al 630 Al 1000 Al 1200 Al

686 911

1045 1279 1427

39.16 52.01 59.66 73.02 81.47

531 702 824

1007 1121

30.31 40.08 47.04 57.49 64.00

663 899

1042 1278 1442

37.85 51.32 59.49 72.96 82.32


Version: 4.0

Date: 16/02/2016


5 Current Rating Tables for Comparison with Existing Designs

The tables in this section are designed to provide a guide between the current ratings of existing designs and the new 33kV single core cables. All the ratings quoted are Distribution Ratings and are in accordance with Engineering Recommendation P17. The MVA ratings are for a three-phase supply. Summer values should generally be used for design purposes as they are the most onerous.

5.1 Three core ‘H’ Type PILC Cables

5.1.1 Summer Ratings – Copper Conductors

Conductor Area in²

Distribution Current Rating per Conductor

900mm depth of cover, g = 1.2C m/watt. Ground/air temp = 15C

Laid Direct in Ground Installed in Ducts Installed in Free Air*

Amps MVA S/C XLPE Amps MVA S/C XLPE Amps MVA S/C XLPE

0.10in2

0.15in2

0.20in2

0.25in2

0.30in2

0.40in2

0.50in2

247 306 360 410 461 543 606

14.10 17.47 20.55 23.41 26.32 31.00 34.60

300 Al 300 Al 300 Al 300 Al 300 Al 300 Al 300 Al

208 256 301 341 383 455 507

11.87 14.62 17.18 19.47 21.87 25.98 28.94

300 Al 300 Al 300 Al 300 Al 300 Al 300 Al 500 Al

239 296 350 400 451 535 600

13.64 16.90 19.98 22.84 25.75 30.54 34.25

300 Al 300 Al 300 Al 300 Al 300 Al 300 Al 300 Al

120mm² 150mm² 185mm² 240mm² 300mm² 400mm²

349 395 448 521 589 669

19.92 22.55 25.58 29.74 33.63 38.19

300 Al 300 Al 300 Al 300 Al 300 Al 500 Al

290 326 370 429 491 556

16.56 18.61 21.12 24.49 28.03 31.74

300 Al 300 Al 300 Al 300 Al 300 Al 500 Al

340 385 439 515 586 671

19.41 21.98 25.06 29.40 33.45 38.31

300 Al 300 Al 300 Al 300 Al 300 Al 500 Al

* In free air shaded from solar radiation

5.1.2 Summer Ratings – Aluminium Conductors

Conductor Area in²





0.20in2

0.25in2

0.30in2

0.40in2

0.50in2

281 321 362 428 481

16.04 18.33 20.67 24.43 27.46

300 Al 300 Al 300 Al 300 Al 300 Al

234 267 300 359 402

13.36 15.24 17.13 20.50 22.95

300 Al 300 Al 300 Al 300 Al 300 Al

273 312 353 421 475

15.59 17.81 20.15 24.03 27.12

300 Al 300 Al 300 Al 300 Al 300 Al

120mm² 150mm² 185mm² 240mm² 300mm² 400mm²

274 309 352 412 468 539

15.64 17.64 20.10 23.52 26.72 30.77

300 Al 300 Al 300 Al 300 Al 300 Al 300 Al

227 255 290 339 389 446

12.96 14.56 16.56 19.35 22.21 25.46

300 Al 300 Al 300 Al 300 Al 300 Al 300 Al

265 300 344 404 462 536

15.13 17.13 19.64 23.06 26.38 30.60

300 Al 300 Al 300 Al 300 Al 300 Al 300 Al



Version: 4.0

Date: 16/02/2016


5.1.3 Winter Ratings – Copper Conductors

Conductor Area in²



Laid Direct in Ground Installed in Ducts Installed in Free air*


0.10in2

0.15in2

0.20in2

0.25in2

0.30in2

0.40in2

0.50in2

273 338 399 457 514 607 679

15.59 19.30 22.78 26.09 29.34 34.65 38.76

300 Al 300 Al 300 Al 300 Al 300 Al 300 Al 300 Al

223 275 324 368 414 492 549

12.73 15.70 18.50 21.01 23.64 28.09 31.34

300 Al 300 Al 300 Al 300 Al 300 Al 300 Al 500 Al

252 312 369 422 476 564 633

14.39 17.81 21.07 24.09 27.17 32.20 36.14

300 Al 300 Al 300 Al 300 Al 300 Al 300 Al 300 Al

120mm² 150mm² 185mm² 240mm² 300mm² 400mm²

389 440 501 584 662 754

22.21 25.12 28.60 33.34 37.79 43.05

300 Al 300 Al 300 Al 300 Al 300 Al 500 Al

312 352 400 465 532 604

17.81 20.10 22.84 26.55 30.37 34.48

300 Al 300 Al 300 Al 300 Al 500 Al 500 Al

359 406 463 543 618 708

20.50 23.18 26.43 31.00 35.28 40.42

300 Al 300 Al 300 Al 300 Al 300 Al 500 Al


5.1.4 Winter Ratings – Aluminium Conductors

Conductor Area in²





0.20in2

0.25in2

0.30in2

0.40in2

0.50in2

311 357 403 479 539

17.75 20.38 23.01 27.35 30.77

300 Al 300 Al 300 Al 300 Al 300 Al

255 290 327 388 436

14.56 16.56 18.67 22.15 24.89

300 Al 300 Al 300 Al 300 Al 300 Al

287 329 372 444 502

16.38 18.78 21.24 25.35 28.66

300 Al 300 Al 300 Al 300 Al 300 Al

120mm² 150mm² 185mm² 240mm² 300mm² 400mm²

304 345 394 462 526 606

17.36 19.70 22.49 26.38 30.03 34.60

300 Al 300 Al 300 Al 300 Al 300 Al 300 Al

246 278 317 371 421 485

14.04 15.87 18.10 21.18 24.03 27.69

300 Al 300 Al 300 Al 300 Al 300 Al 300 Al

279 316 363 427 488 565

15.93 18.04 20.72 24.38 27.86 32.26

300 Al 300 Al 300 Al 300 Al 300 Al 300 Al



Version: 4.0

Date: 16/02/2016


5.2 Three core Fluid Filled Cables (Lead or Corrugated Aluminium Sheath)

5.2.1 Summer Ratings – Copper Conductors

Conductor Area in²





0.15in2

0.20in2

0.25in2

0.30in2

0.35in2

0.40in2

0.45in2

0.50in2

0.55in2

0.60in2

345 405 463 515 564 598 633 665 698 733

19.70 23.12 26.43 29.40 32.20 34.14 36.14 37.96 39.85 41.85

300 Al 300 Al 300 Al 300 Al 300 Al 300 Al 500 Al 500 Al 500 Al 500 Al

286 336 382 426 466 495 522 548 576 604

16.33 19.18 21.81 24.32 26.60 28.26 29.80 31.29 32.88 34.48


356 425 491 553 611 651 693 732 776 822

20.32 24.26 28.03 30.41 34.88 37.17 39.56 41.79 44.30 46.93


120mm² 150mm² 185mm² 240mm² 260mm² 300mm² 350mm² 400mm² 500mm² 630mm²

393 443 499 573 596 644 690 724 801 881

22.44 25.29 28.49 32.71 34.03 36.77 39.39 41.33 45.71 50.30


325 366 411 473 492 530 567 595 658 735

18.55 20.89 23.46 27.00 28.09 30.26 32.37 33.97 37.57 41.96


413 471 534 623 650 710 767 810 909

1019

23.58 26.89 30.49 35.57 37.11 40.53 43.79 46.24 51.89 58.17

300 Al 300 Al 300 Al 300 Al 500 Al 500 Al 500 Al 500 Al 630 Al

1000 Al


5.2.2 Summer Ratings – Aluminium Conductors

Conductor Area in²


900mm depth of cover, g = 1.2C m/watt. Ground / air temp = 15C



0.20in2

0.25in2

0.30in2

0.35in2

0.40in2

0.45in2

0.50in2

0.55in2

0.60in2

175 233 284 331 371 414 480 535 539

9.99 13.30 16.21 18.90 21.18 23.64 27.40 30.54 30.77


145 192 235 274 307 342 396 442 444

8.28 10.96 13.42 15.64 17.53 19.52 22.61 25.23 25.35


184 247 305 359 403 453 528 594 603

10.50 14.10 17.41 20.50 23.01 25.86 30.14 33.91 34.43



306 345 391 451 472 510 551 581 653 734

17.47 19.70 22.32 25.75 26.95 29.12 31.46 33.17 37.28 41.73


253 285 322 373 389 421 453 478 537 612

14.44 16.27 18.38 21.29 22.21 24.03 25.86 27.29 30.66 34.94


322 367 418 490 514 562 611 650 739 846

18.38 20.95 23.86 27.97 29.34 32.68 34.88 37.11 42.19 48.30




Version: 4.0

Date: 16/02/2016


5.2.3 Winter Ratings – Copper Conductors

Conductor Area in²





0.15in2

0.20in2

0.25in2

0.30in2

0.35in2

0.40in2

0.45in2

0.50in2

0.55in2

0.60in2

388 456 523 582 638 676 718 754 792 832

22.15 26.03 29.86 33.23 36.42 38.59 40.99 43.05 45.22 47.50


305 359 409 457 500 531 561 589 620 651

17.41 20.50 23.35 26.09 28.56 30.31 32.03 33.63 35.40 37.17


371 442 511 576 636 677 722 761 808 855

21.18 25.23 29.17 32.88 36.31 38.65 41.22 43.45 46.13 48.81



444 501 565 649 676 732 785 823 911

1005

25.35 28.60 32.26 37.05 38.59 41.79 44.82 46.99 52.01 57.38


347 391 440 507 528 570 611 641 710 793

19.81 22.32 25.12 28.94 30.14 32.54 34.88 36.59 40.53 45.27


429 490 555 648 677 738 798 843 946

1060

24.49 27.97 31.68 36.99 38.65 42.13 45.56 48.13 54.01 60.52



5.2.4 Winter Ratings – Aluminium Conductors

Conductor Area in²





0.20in2

0.25in2

0.30in2

0.35in2

0.40in2

0.45in2

0.50in2

0.55in2

0.60in2

197 263 321 375 419 469 544 607 611

11.25 15.01 18.33 21.41 23.92 26.78 31.06 34.65 34.88


155 206 252 294 330 368 426 476 479

8.85 11.76 14.39 16.78 18.84 21.01 24.32 27.17 27.35


191 257 317 373 419 471 549 618 627

10.90 14.67 18.10 21.29 23.92 36.89 31.34 35.28 35.80



346 391 442 511 535 579 626 661 742 836

19.75 22.32 25.23 29.17 30.54 33.06 35.74 37.74 42.36 47.73


271 305 345 400 418 452 488 515 580 661

15.47 17.41 19.70 22.84 23.86 25.80 27.86 29.40 33.11 37.74


335 382 435 510 535 584 636 676 770 881

19.13 21.81 24.83 29.12 30.54 33.34 36.31 38.59 43.96 50.30




Version: 4.0

Date: 16/02/2016


5.3 Existing Single Core XLPE Cables – Aluminium and Copper Conductors

5.3.1 Summer Ratings

Conductor Area




Amps MVA S/C XLPE Amps MVA Triplex Amps MVA S/C XLPE

Solid Al 185mm² 300mm²

458 605

26.15 34.54

300 Al 300 Al

380 500

21.69 28.55

300 Al 300 Al

466 627

26.60 35.80

300 Al 300 Al

Stranded Cu

185mm² 300mm² 400mm² 500mm² 630mm² 800mm²

594 778 888

1007 1137 1265

33.91 44.42 50.70 57.49 64.91 72.22

300 Al 500 Al 630 Al 1000 Al 1000 Al 1200 Al

491 641 729 825 956

1062

28.03 36.59 41.62 47.10 54.58 60.63

300 Al 500 Al 630 Al 1000 Al 1000 Al 1200 Al

609 812 938

1077 1231 1390

34.77 46.36 53.55 61.49 70.28 79.36

300 Al 500 Al 630 Al 1000 Al 1000 Al 1200 Al

*In free air shaded from solar radiation

5.3.2 Winter Ratings

Conductor Area


600mm depth of cover, g = 0.9C m/watt. Ground / air temp = 10C


Amps MVA Triplex Amps MVA Triplex Amps MVA Triplex

Solid Al 185mm² 300mm²

510 676

29.12 38.59

300 Al 300 Al

396 524

22.61 29.92

300 Al 300 Al

483 650

27.57 37.11

300 Al 300 Al

Stranded Cu

185mm² 300mm² 400mm² 500mm² 630mm² 800mm²

663 871 996

1132 1279 1427

37.85 49.73 56.86 64.63 73.02 81.47

300 Al 500 Al 630 Al 1000 Al 1000 Al 1200 Al

514 673 767 870

1007 1121

29.34 38.42 43.79 49.67 57.49 64.00

300 Al 500 Al 630 Al 1000 Al 1000 Al 1200 Al

631 843 973

1118 1278 1442

36.02 48.13 55.55 63.83 72.96 82.32

300 Al 500 Al 630 Al 1000 Al 1000 Al 1200 Al

*In free air shaded from solar radiation


Version: 4.0

Date: 16/02/2016


5.5 Technical Data Sheets

1. Solid or stranded aluminium conductor

2. Semi-conducting screen

3. XLPE insulation

4. Bonded semi-conducting screen

5. 82mm² Aluminium wire screen

6. Water swellable tapes above and below aluminium wire screen

7. Black MDPE sheath with conductive outer layer

Nominal cross-sectional area mm² 300 500 630

Approximate diameter over conductor mm 20.5 24.3 27.8

Nominal insulation thickness mm 8.0 8.0 8.0

Nominal area of aluminium wire screen mm² 82 82 82

Minimum average thickness of oversheath mm 1.72 2.6 2.7

Approximate overall diameter of Single Core mm 49.5 56.0 60.0

Approximate cable weight kg/m 2.27 2.95 3.49

Minimum bending radius mm 495 795 850

Maximum pulling tension on Single Core kN 9.0 14.6 17.8

Nominal internal diameter of duct mm 150 150 190

Maximum DC screen resistance @ 20°C /km 0.387 0.387 0.387

Approximate Capacitance (C) µF/km 0.262 0.289 0.320

Maximum DC resistance (R) @ 20°C /km 0.100 0.061 0.047

Maximum AC resistance (R’) @ 90°C /km 0.1293 0.0797 0.0629

Inductance (L) @ 50Hz @ 90°C mH/km 0.341 0.317 0.310

Reactance (X) @ 50Hz @ 90°C /km 0.107 0.100 0.097

Zero Sequence Resistance /km 0.615 0.566 0.548

Zero Sequence Reactance /km 0.056 0.049 0.045

Positive Sequence Resistance /km 0.136 0.086 0.069

Positive Sequence Reactance /km 0.112 0.104 0.100

Short circuit ratings

1 Second short circuit rating of conductor (90 to 250°C) kA 28.2 47.2 59.5

1 Second short circuit rating of copper wire screen (80 to 250°C)

kA 8.6 8.6 8.6


Version: 4.0

Date: 16/02/2016


Technical Data Sheets – Continued

6 Dependent Documents

This document is referenced in the following documents, any of which may be affected by updates.

EDS 08-0145 EHV Design

EDS 08-0150 London 33kV Distribution Network Design and Customer Supplies

1. Solid or stranded aluminium conductor

2. Semi-conducting screen

3. XLPE insulation

4. Bonded semi-conducting screen

5. 82mm² Aluminium wire screen

6. Water swellable tapes above and below aluminium wire screen

7. Black MDPE sheath with conductive outer layer

Nominal cross-sectional area mm² 1000 1200

Approximate diameter over conductor mm 35.6 41.5

Approximate thickness of conductor screen mm 0.50 0.50

Nominal insulation thickness mm 8.0 8.0

Approximate thickness of insulation screen mm 1.00 1.00

Nominal area of aluminium wire screen mm² 82 82

Minimum average thickness of oversheath mm 3.0 2.28

Approximate overall diameter of Single Core mm 69.0 73.0

Approximate cable weight kg/m 4.88 5.85

Minimum bending radius mm 975 1700

Maximum pulling tension on Single Core kN 27.0 4000

Nominal internal diameter of duct mm 190 190

Maximum DC screen resistance @ 20°C /km 0.389 0.387

Approximate Capacitance (C) µF/km 0.349 0.450

Maximum DC resistance (R) @ 20°C /km 0.0291 0.0247

Maximum AC resistance (R’) @ 90°C /km 0.0405 0.0369

Inductance (L) @ 50Hz @ 90°C mH/km 0.310 0.31

Reactance (X) @ 50Hz @ 90°C /km 0.097 0.094

Zero Sequence Resistance /km 0.526 0.519

Zero Sequence Reactance /km 0.045 0.043

Positive Sequence Resistance /km 0.046 0.039

Positive Sequence Reactance /km 0.101 0.097

Short circuit ratings

1 Second Short Circuit Rating of Conductor (90 to 250°C) kA 94.5 114.4

1 Second Short Circuit Rating of Copper wire screen (80 to 250°C) kA 8.6 7.5


Version: 4.0

Date: 16/02/2016


Appendix A – Cable Ratings for Widely Used Installation Conditions

A.1 Laid Direct Circuits – Single Circuit

A.1.1 Summer Ratings

Conductor Size and Material

Summer Continuous Rating (A)

Summer Continuous Rating (MVA)

Summer Distribution Rating (A)

Summer Distribution Rating (MVA)

300mm2 Al 456 26.03 614 35.05

500mm2 Al 591 33.74 812 46.36

630mm2 Al 670 38.25 929 53.04

1000mm2 Al 829 47.33 1173 66.97

1200mm2 Al 901 51.44 1265 72.22

A.1.2 Winter Ratings


Winter Continuous Rating (A)

Winter Continuous Rating (MVA)

Winter Distribution Rating (A)

Winter Distribution Rating (MVA)

300mm2 Al 527 30.09 686 39.16

500mm2 Al 686 39.16 911 52.01

630mm2 Al 778 44.42 1045 59.99

1000mm2 Al 965 54.09 1325 77.19

1200mm2 Al 1049 59.89 1427 81.47

900mm mmm


Version: 4.0

Date: 16/02/2016


A.2 Laid Direct Circuits – Double Circuit (both circuits loaded at the same time)







300mm2 Al 436 24.89 586 33.45

500mm2 Al 562 32.08 773 44.13

630mm2 Al 637 36.37 883 50.41

1000mm2 Al 785 44.82 1111 63.43

1200mm2 Al 855 48.81 1200 68.51







300mm2 Al 509 29.06 663 37.83

500mm2 Al 661 37.75 878 50.14

630mm2 Al 748 42.73 1005 57.39

1000mm2 Al 926 52.87 1271 72.56

1200mm2 Al 1008 57.55 1372 78.33

300mm

900mm mmm


Version: 4.0

Date: 16/02/2016


A.3 Ducted Circuits – Single Circuit







300mm2 Al 403 23.01 506 28.89

500mm2 Al 521 29.74 666 38.02

630mm2 Al 604 34.38 782 44.64

1000mm2 Al 744 42.47 984 56.18

1200mm2 Al 810 46.24 1062 60.63







300mm2 Al 445 25.41 531 30.31

500mm2 Al 579 33.06 702 40.08

630mm2 Al 670 38.25 824 47.04

1000mm2 Al 832 47.50 1042 59.49

1200mm2 Al 902 51.50 1121 64.00

900mm mmm


Version: 4.0

Date: 16/02/2016


A.4 Ducted Circuits – Double Circuit (both circuits loaded at the same time)







300mm2 Al 393 22.44 494 28.20

500mm2 Al 509 29.06 650 37.11

630mm2 Al 590 33.68 764 43.62

1000mm2 Al 726 41.45 961 54.86

1200mm2 Al 791 45.16 1037 59.20







300mm2 Al 437 24.97 522 29.80

500mm2 Al 569 32.49 690 39.40

630mm2 Al 659 37.90 810 46.24

1000mm2 Al 817 46.64 1024 58.46

1200mm2 Al 886 50.58 1103 62.97

300mm

900mm mmm

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