Covered Aerial MV Cable (Spacer Cable or Tree Wire)

Voltage: 15kV, 25kV, 35kV; 6.35/11kV, 12.7/22kV & 19/33kV

Conductor: Concentrically stranded AAC, AAAC (either compressed or full compact depending on conductor size) or ACSR

Strand Shield: Semi-conducting cross linked polymer

Covering: track-resistant high-density polyethylene (TR-HDPE)

Track-Resistant Cross-linked Polyethylene (TK_XLPE)


Overview

Application

Covered Aerial MV Cable – Installed with other Covered Aerial MV cables and a supporting messenger through a series of space- maintaining devices (spacers). The resulting close-proximity configuration minimizes the amount of space and hardware required for line installation, particularly useful in congested areas.

Tree Wire – Used for spans where trees crowd the right-of-way, such as in wooded residential areas, when a minimum of interference with the environment is desired. Covering minimizes power outages due to conductor contact with tree limbs, reducing the need for frequent or severe trimming.

Spacer Cable – Installed with other spacer cables and a supporting messenger through a series of space-maintaining devices (spacers). The resulting close-proximity configuration minimizes the amount of space and hardware required for line installation; particularly useful in congested areas.


Construction

AAC, AAAC, ACSR Hard drawn Aluminum conductors & high die electric strength; Galvanise steel wire zinc coated & high impact/ abrasion resistant

concentrically stranded insulated with Cross-linked polyethylene (XLPE)

Jacketed with weather, track & sunlight resistant High density polyethylene (HDPE)

TREE WIRE SPACER CABLE.jpg

tree wire.png

Standards

American Standard One Two Three Layer  MV 5kv 15KV 25KV 35KV Overhead Covered Conductor.

Australia Standard AS/NZS 3675 MV 6.35/11kv 12.7/22kV CCT Overhead Covered  Conductor, Aerial Cables

IEC BS EN 50397 Standard 15kv 25kv 35kv Overhead Covered Conductor


ASTM B230 Standard Specification for Aluminum 1350–H19 Wire for Electrical Purposes

ASTM B231 Standard Specification for Concentric-Lay-Stranded Aluminum 1350 Conductors

ASTM B232 Standard Specification for Concentric-Lay-Stranded Aluminum Conductors, Coated-Steel Reinforced (ACSR) 

ASTM B398 Standard Specification for Aluminum-Alloy 6201-T81 and 6201-T83 Wire for Electrical Purposes

ASTM B399 Standard Specification for Concentric-Lay-Stranded Aluminum-Alloy 6201-T81 Conductors

ASTM B400 Standard Specification for Compact Round Concentric-Lay-Stranded Conductors

ASTM D2656 Standard Specification for Cross-linked Polyethylene Insulation for Wire and Cable Rated 2001 to 35 000 V

ASTM D1248 Standard Specification for Polyethylene Plastics Extrusion Materials for Wire and Cable

ICEA S-70-547 Standard Specification for Weather Resistant Polyethylene Covered Conductors

The conductor shield shall be an extruded back semiconductor polymer meeting the physical requirements of ICEA S-61-402.

Available with track-resistant high-density polyethylene (TR-HDPE) per ASTM D1248 or Track-Resistant Cross-linked Polyethylene (TK_XLPE) covering per ASTM D2656 and ICEA S-66-524

Parameter

ASTM

One-Layer 5kv AAC Tree Wire (All-Aluminum Conductors)

Size (AWG or kcmil)

Stranding

Cover Thickness (mils)

Cable O.D.+ (mils)

Rated Strenght (lbs)

Weight per 1000 ft. (lbs)

Allowable Ampacity*

XLP

HD Poly

4

7

80

385

793

72

73

135

2

7

80

443

1210

102

104

180

1

19

80

482

1570

121

123

210

1/0

19

80

522

1940

146

148

240

2/0

19

80

565

2400

176

179

275

3/0

19

80

616

2980

215

218

320

4/0

19

80

672

3620

263

266

370

250

37

80

718

4420

300

304

410

266.8

19

80

734

4470

322

325

425

300

37

80

771

5300

353

356

455

336.4

37

80

807

5790

391

395

490

350

37

80

821

6080

406

409

505

477

37

80

931

7820

536

541

610

500

37

80

950

8200

560

565

625

One-Layer 5kv ACSR Tree Wire (Aluminum Conductor Steel Reinforced)

4

6/1

80

410

1770

94

96

135

2

6/1

80

476

2710

137

139

180

1

6/1

80

514

3370

166

168

205

1/0

6/1

80

558

4160

202

205

230

2/0

6/1

80

607

5040

247

250

265

3/0

6/1

80

662

6290

303

307

305

4/0

6/1

80

723

7930

374

378

345

266.8

18/1

80

769

6540

372

376

430

266.8

26/7

80

802

10700

449

453

440

336.4

18/1

80

844

8250

458

463

500

336.4

26/7

80

880

13400

555

559

510

397.5

18/1

80

903

9440

534

539

555

397.5

26/7

80

943

15500

647

652

565

477

18/1

80

974

11200

631

637

620

477

26/7

80

1018

185000

767

773

630

One-Layer 15kv AAC Tree Wire (All-Aluminum Conductors)

4

7

150

525

793

114

115

135

2

7

150

583

1210

150

151

175

1

19

150

622

1570

172

173

205

1/0

19

150

662

1940

--

202

235

2/0

19

150

705

2400

236

237

270

3/0

19

150

756

2980

279

281

310

4/0

19

150

812

3620

333

334

355

266.8

19

150

874

4470

397

399

410

300

37

150

911

5300

432

433

440

336.4

37

150

947

5790

473

475

475

350

37

150

961

6080

489

491

485

477

37

150

1071

7820

631

633

585

500

37

150

1090

8200

656

658

605

One-Layer 15kv ACSR Tree Wire (Aluminum Conductor Steel Reinforced)

4

6/1

150

550

1770

139

140

135

2

6/1

150

616

2710

188

189

175

1

6/1

150

654

3370

221

222

200

1/0

6/1

150

698

4160

261

263

230

2/0

6/1

150

747

5040

--

312

260

3/0

6/1

150

802

6290

372

374

295

4/0

6/1

150

863

7930

449

450

330

266.8

18/1

150

909

6540

451

453

415

266.8

26/7

150

942

10700

531

533

425

336.4

18/1

150

984

8250

545

547

480

336.4

26/7

150

1020

13400

645

647

490

397.5

18/1

150

1043

9440

626

628

535

397.5

26/7

150

1083

15500

743

745

545

477

18/1

150

1114

11200

730

733

595

477

26/7

150

1158

18500

870

872

610

2-Layer 15kV ACSR Tree Wire

4

6/1

250

75

75

550

1767

136

2

6/1

316

75

75

616

2708

184

1/0

6/1

398

75

75

698

4161

255

2/0

6/1

447

75

75

747

5045

303

3/0

6/1

502

75

75

802

6289

362

4/0

6/1

563

75

75

863

7933

432

266.8

18/1

609

75

75

909

6536

441

266.8

26/7

642

75

75

942

10735

452

336.4

18/1

684

75

75

984

8246

536

336.4

26/7

720

75

75

1020

13395

555

336.4

30/7

741

75

75

1041

16435

621

397.5

18/1

743

75

75

1043

9443

611

397.5

24/7

772

75

75

1072

13870

609

397.5

26/7

783

75

75

1083

1545

645

477

24/7

846

75

75

1146

16340

719

477

26/7

858

75

75

1158

18525

762

477

30/7

883

75

75

1183

22610

854

556.5

18/1

879

75

75

1179

13015

813

556.5

24/7

914

75

75

1214

18810

828

556.5

26/7

927

75

75

1227

21470

878

636

18/1

940

75

75

1240

14915

912

636

24/7

977

75

75

1277

20900

936

636

26/7

990

75

75

1290

23940

993

795

26/7

1108

80

80

1428

29925

1234

795

45/7

1063

80

80

1383

20995

1031

2-Layer 15kV AAAC Tree Wire

48.69

4

7

250

75

75

550

1584

124

77.47

2

7

316

75

75

616

2520

165

123.3

1/0

7

398

75

75

698

4014

225

155.4

2/0

7

447

75

75

747

4851

265

195.7

3/0

7

502

75

75

802

6111

314

246.9

4/0

7

563

75

75

863

7704

376

312.8

266.8

19

642

75

75

942

9900

450

394.5

336.4

19

720

75

75

1020

11970

543

465.4

397.5

19

782

75

75

1082

14040

623

559.5

477

19

858

75

75

1158

16920

727

652.4

556.5

19

927

75

75

1227

19710

828

740.8

636

37

990

80

80

1310

21960

938

2-Layer 15kV AAC Tree  Wire

1/0

7

336

75

75

636

1791

196

2/0

7

376

75

75

676

2259

230

3/0

7

423

75

75

723

2736

272

4/0

7

475

75

75

775

3447

325

266.8

19

537

75

75

837

4473

387

336.4

19

603

75

75

903

5535

466

397.5

19

659

75

75

959

6399

535

477

19

722

75

75

1022

7524

623

556.5

37

780

75

75

1080

8946

708

636

37

835

75

75

1135

10260

794

3-Layer 15kV ACSR Tree Wire

Size (AWG or kcmil)

Stranding

Conductor Diameter (mils)

Covering Thickness (mils)

Cable O.D. (mils)

Rated Strength (lbs)

Weight per 1000 ft. (lbs)

Conductor Shield

Inner Layer

Outer Layer


4

6/1

250

15

75

75

580

1767

151

2

6/1

316

15

75

75

646

2708

202

1/0

6/1

398

15

75

75

728

4161

278

2/0

6/1

447

15

75

75

777

5045

330

3/0

6/1

502

15

75

75

832

6289

393

4/0

6/1

563

15

75

75

893

7933

471

266.8

18/1

609

15

75

75

939

6536

474

266.8

26/7

642

15

75

75

972

10735

553

336.4

18/1

684

15

75

75

1014

8246

570

336.4

26/7

720

15

75

75

1050

13395

669

336.4

30/7

741

15

75

75

1071

16435

935

397.5

18/1

743

15

75

75

1073

9443

653

397.5

24/7

772

15

75

75

1102

13870

707

397.5

26/7

783

15

75

75

1113

15485

770

477

24/7

846

15

75

75

1176

16340

824

477

26/7

858

15

75

75

1188

18525

899

477

30/7

883

15

75

75

1213

22610

1274

556.5

18/1

879

20

75

75

1219

13015

874

556.5

24/7

914

20

75

75

1254

18810

949

556.5

26/7

927

20

75

75

1267

21470

1036

636

18/1

940

20

75

75

1280

14915

1200

636

26/7

990

20

75

75

1330

23940

1373

3-Layer 15kV AAAC Tree  Wire

48.69

4

7

250

15

75

75

580

1584

137

77.47

2

7

316

15

75

75

646

2520

179

123.3

1/0

7

398

15

75

75

728

4014

241

155.4

2/0

7

447

15

75

75

777

4851

283

195.7

3/0

7

502

15

75

75

832

6111

334

246.9

4/0

7

563

15

75

75

893

7704

397

312.8

266.8

19

642

15

75

75

972

9900

473

394.5

336.4

19

720

15

75

75

1050

11970

568

465.4

397.5

19

783

15

75

75

1113

14040

649

559.5

477

19

858

15

75

75

1188

16920

755

652.4

556.5

19

927

20

75

75

1267

19710

894

740.8

636

37

990

20

75

75

1330

21960

963

3-Layer 15kV AAC Tree Wire

1/0

7

336

15

75

75

666

1791

2/0

7

376

15

75

75

706

2259

3/0

7

423

15

75

75

753

2736

4/0

7

475

15

75

75

805

3447

266.8

19

537

15

75

75

867

4473

336.4

19

603

15

75

75

933

5535

397.5

19

659

15

75

75

989

6399

477

19

722

15

75

75

1052

7524

556.5

37

780

20

75

75

1120

8946

636

37

835

20

80

80

1195

10260

795

37

932

20

80

80

1292

12510

3-Layer 25kV ACSR Tree Wire

1/0

6/1

398

15

125

125

928

4161

385

2/0

6/1

447

15

125

125

977

5045

443

3/0

6/1

502

15

125

125

1032

6289

513

4/0

6/1

563

15

125

125

1093

7933

600

266.8

18/1

609

15

125

125

1139

6536

608

266.8

26/7

642

15

125

125

1172

10735

692

336.4

18/1

684

15

125

125

1214

8246

714

336.4

26/7

720

15

125

125

1250

13395

818

336.4

30/7

741

15

125

125

1271

16435

1086

397.5

18/1

743

15

125

125

1273

9443

804

397.5

24/7

772

15

125

125

1302

13870

863

397.5

26/7

783

15

125

125

1313

15485

926

477

24/7

846

20

125

125

1386

16340

999

477

26/7

858

20

125

125

1398

18525

1076

477

30/7

883

20

125

125

1423

22610

1458

556.5

18/1

879

20

125

125

1419

13015

1045

556.5

24/7

914

20

125

125

1454

18810

1124

556.5

26/7

927

20

125

125

1467

21470

1213

3-Layer 25kV AAAC Tree Wire

48.69

4

7

250

15

125

125

780

1584

225

77.47

2

7

316

15

125

125

846

2520

275

123.3

1/0

7

398

15

125

125

928

4014

348

155.4

2/0

7

447

15

125

125

977

4851

396

195.7

3/0

7

502

15

125

125

1032

6111

454

246.9

4/0

7

563

15

125

125

1093

7704

525

312.8

266.8

19

642

15

125

125

1172

9900

611

394.5

336.4

19

720

15

125

125

1251

11970

716

465.4

397.5

19

783

15

125

125

1313

14040

805

559.5

477

19

858

20

125

125

1398

16920

932

652.4

556.5

19

927

20

125

125

1467

19710

1044

740.8

636

37

990

20

125

125

1530

21960

1148

927.2

795

37

1108

20

125

125

1648

27450

1389

3-Layer 25kV AAC Tree  Wire

1/0

7

336

15

125

125

866

1791

309

2/0

7

376

15

125

125

906

2259

350

3/0

7

423

15

125

125

953

2736

400

4/0

7

475

15

125

125

1005

3447

460

266.8

19

537

15

125

125

1067

4473

531

336.4

19

603

15

125

125

1133

5535

621

397.5

19

659

15

125

125

1189

6399

698

477

19

722

20

125

125

1262

7524

806

556.5

37

780

20

125

125

1320

8946

899

636

37

835

20

125

125

1375

10260

995

795

37

932

20

125

125

1472

12510

1181

3-Layer 35kV ACSR Tree Wire

1/0

6/1

398

15

175

125

1028

4161

448

2/0

6/1

447

15

175

125

1077

5045

509

4/0

6/1

563

15

175

125

1193

7933

673

266.8

18/1

609

15

175

125

1239

6536

684

266.8

26/7

642

15

175

125

1272

10735

770

336.4

18/1

684

15

175

125

1314

8246

794

336.4

26/7

720

15

175

125

1350

13395

901

336.4

30/7

741

15

175

125

1371

16435

1170

397.5

18/1

743

15

175

125

1373

9443

889

397.5

24/7

772

15

175

125

1402

13870

949

397.5

26/7

783

15

175

125

1413

15485

1013

477

24/7

846

20

175

125

1486

16340

1091

477

26/7

858

20

175

125

1498

18525

1168

477

30/7

883

20

175

125

1523

22610

1552

556.5

18/1

879

20

175

125

1519

13015

1138

556.5

24/7

914

20

175

125

1554

18810

1220

556.5

26/7

927

20

175

125

1567

21470

1309

636

18/1

940

20

175

125

1580

14915

1637

636

26/7

990

20

175

125

1630

23940

1826

795

26/7

1107

20

175

125

1747

29925

2146

795

45/7

1063

20

175

125

1703

20995

1892

3-Layer 35kV AAAC Tree  Wire

48.69

4

7

250

15

175

125

880

1584

278

77.47

2

7

316

15

175

125

946

2520

333

123.3

1/0

7

398

15

175

125

1028

4014

411

155.4

2/0

7

447

15

175

125

1077

4851

462

195.7

3/0

7

502

15

175

125

1132

6111

523

246.9

4/0

7

563

15

175

125

1193

7704

598

312.8

266.8

19

642

15

175

125

1272

9900

689

394.5

336.4

19

720

15

175

125

1351

11970

799

465.4

397.5

19

783

15

175

125

1412

14040

892

559.5

477

19

858

20

175

125

1498

16920

1024

652.4

556.5

19

927

20

175

125

1567

19710

1141

3-Layer 35kV AAC Tree  Wire

1/0

7

336

15

175

125

966

1791

368

2/0

7

376

15

175

125

1006

2259

411

3/0

7

423

15

175

125

1053

2736

464

4/0

7

475

15

175

125

1105

3447

527

266.8

19

537

15

175

125

1167

4473

603

336.4

19

603

15

175

125

1233

5535

696

397.5

19

659

15

175

125

1289

6399

777

477

19

722

20

175

125

1362

7524

889

556.5

37

780

20

175

125

1420

8946

987

636

37

835

20

175

125

1475

10260

1085

795

37

932

20

175

125

1572

12510

1278

 

AS/NZS 3675 

Conductor size No./mm

Conductor d.c. resistance at 20°C

Conductor a.c. resistance at 80°C

Reactance at 50 Hz (460 mm spacing)

Continuous current carrying capacity

Fault current rating kA for 1 sec.*

Everday working tensionf kN

Maximum working tension (50% MBL) kN

Minimum breaking load kN

Minimum bending radius mm

Based on 30°C ambient

Based on 40°C ambient

Ω/km

Ω/km

Ω/km

Still air

1.0 m/s wind

2.0 m/s wind




Alloy 6201

7/2.75

0.799

0.988

0.331

125

210

235

110

185

210

3.5

1.51

5.8

11.6

200

7/3.75

0.43

0.532

0.312

180

300

345

160

270

310

6.4

2.82

10.9

21.7

245

7/4.75

0.268

0.331

0.297

245

410

465

220

365

415

10.3

4.52

17.4

34.8

290

19/3.50

0.183

0.227

0.281

315

515

595

280

460

530

15.2

6.67

25.7

51.3

340

Alloy 1120

7/2.75

0.713

0.881

0.331

130

220

250

115

195

225

3.7

1.49

4.96

9.91

200

7/3.75

0.383

0.474

0.312

190

320

365

170

285

325

6.8

2.64

8.8

17.6

245

7/4.75

0.239

0.296

0.297

260

430

485

230

385

435

11

4.07

13.6

27.1

290

19/3.50

0.163

0.202

0.281

330

545

625

295

485

560

16.2

6.26

20.9

41.7

340

TECHNICAL PERFORMANCE CHARACTERISTICS FOR COVERED CONDUCTORS (CCT)

Conductor size No./mm

Conductor d.c. resistance at 20°C

Conductor a.c. resistance at 80°C

Reactance at 50 Hz (460 mm spacing)

Continuous current carrying capacity

Fault current rating kA for 1 sec.*

Everday working tensionf kN

Maximum working tension (50% MBL) kN

Minimum breaking load kN

Minimum bending radius mm

Based on 30°C ambient

Based on 40°C ambient

Ω/km

Ω/km

Ω/km

Still air

1.0 m/s wind

2.0 m/s wind




11 kV Alloy 6201

7/3.75

0.43

0.532

0.312

185

295

330

165

265

295

6.4

2.82

10.9

21.7

285

7/4.75

0.268

0.331

0.297

245

390

440

220

350

395

10.3

4.52

17.4

34.8

330

19/3.50

0.183

0.227

0.281

315

500

560

280

445

500

15.2

6.67

25.7

51.3

380

22 kV Alloy 6201















7/3.75

0.43

0.532

0.312

185

285

315

165

255

280

6.4

2.82

10.9

21.7

350

7/4.75

0.268

0.331

0.297

245

375

420

220

335

375

10.3

4.52

17.4

34.8

395

19/3.50

0.183

0.227

0.281

315

475

530

280

425

475

15.2

6.67

25.7

51.3

445

33 kV Alloy 6201

7/3.75

0.43

0.532

0.312

185

270

295

165

240

265

6.4

2.82

10.9

21.7

425

7/4.75

0.268

0.331

0.297

245

360

400

220

320

355

10.3

4.52

17.4

34.8

470

19/3.50

0.183

0.227

0.281

315

455

505

280

405

450

15.2

6.67

25.7

51.3

520

XLPE covered aerial cables Alloy 1120 conductors

Conductor size No./mm

Conductor d.c. resistance at 20°C

Conductor a.c. resistance at 80°C

Reactance at 50 Hz (460 mm spacing)

Continuous current carrying capacity

Fault current rating kA for 1 sec.*

Everday working tensionf kN

Maximum working tension (50% MBL) kN

Minimum breaking load kN

Minimum bending radius mm

Based on 30°C ambient

Based on 40°C ambient

Ω/km

Ω/km

Ω/km

Still air

1.0 m/s wind

2.0 m/s wind




11 kV Alloy 1120

7/2.75

0.713

0.881

0.331

130

215

240

115

190

215

3.7

1.49

4.96

9.9

230

7/3.75

0.383

0.474

0.312

190

315

345

170

280

310

6.8

2.64

8.8

17.6

285

7/4.75

0.239

0.296

0.297

26()

415

470

230

370

420

11

4.07

13.6

27.1

330

19/3.50

0.163

0.202

0.281

330

525

595

295

470

530

16.2

6.26

20.9

41.7

380

22 kV Alloy 1120

7/2.75

0.713

0.881

0.331

135

205

225

120

185

200

3.7

1.49

4.96

9.9

300

7/3.75

0.383

0.474

0.312

190

295

330

170

265

295

6.8

2.64

8.8

17.6

350

7/4.75

0.239

0.296

0.297

260

400

440

230

355

395

11

4.07

13.6

27.1

395

19/3.50

0.163

0.202

0.281

330

505

560

295

450

500

16.2

6.26

20.9

41.7

445

33 kV Alloy 1120

7/2.75

0.713

0.881

0.331

135

195

215

120

175

190

3.7

1.49

4.96

9.9

385

7/3.75

0.383

0.474

0.312

195

285

315

175

255

280

6.8

2.64

8.8

17.6

425

7/4.75

0.239

0.296

0.297

260

380

420

230

340

375

11

4.07

13.6

27.1

470

19/3.50

0.163

0.202

0.281

330

480

530

295

430

475

16.2

6.26

20.9

41.7

520

* Initial temperature 80°C, final temperature 210°C, constant K = 83.0 for alloy 6201 and 88.4 for alloy 1120. f 13% MBL fbr alloy 6201 and 15% MBL for alloy 1120.

IEC BS EN 50397

 

15kv Overhead Covered Conductor

Cross section

No. of wires

Conductor dia.

Overall Diameter

Minimum breaking load

Approx. weight

Max. DC-resistance at 20°C

Ampacity 90°C

[mm²]


[mm]

[mm]

[kgf]

[kg/km]

[Ohm/km]

[A]

35

7

7.1

13.6

464

190

0.868

187

50

7

8.2

14.7

663

235

0.641

225

70

19

9.7

16.2

928

315

0.443

282

95

19

11.5

18

1259

400

0.32

345

120

19

12.9

19.4

1591

500

0.253

401

150

19

14.2

20.7

1988

580

0.206

456

185

37

16.2

22.6

2452

695

0.164

525

240

37

18.4

24.9

3182

875

0.125

625

300

37

20.7

27.1

3977

1070

0.1

721

25kv Overhead Covered Conductor

Cross section

No. of wires

Conductor dia.

Overall Diameter

Minimum breaking load

Approx. weight

Max. DC-resistance at 20°C

Ampacity 90°C

[mm²]


[mm]

[mm]

[kgf]

[kg/km]

[Ohm/km]

[A]

35

7

7.1

15.7

464

235

0.868

186

50

7

8.2

16.8

663

305

0.641

224

70

19

9.7

18.3

928

370

0.443

280

95

19

11.5

20.1

1259

460

0.32

343

120

19

12.9

21.5

1591

560

0.253

397

150

19

14.2

22.8

1988

650

0.206

450

185

37

16.2

24.8

2452

770

0.164

519

240

37

18.4

27

3182

960

0.125

617

300

37

20.7

29.3

3977

1155

0.1

712

35kv Overhead Covered Conductor

Cross section

No. of wires

Conductor dia.

Overall Diameter

Minimum breaking load

Approx. weight

Max. DC-resistance at 20°C

Ampacity 90°C

[mm²]


[mm]

[mm]

[kgf]

[kg/km]

[Ohm/km]

[A]

70

19

9.7

25.7

928

620

0.443

270

95

19

11.5

27.5

1259

732

0.32

329

120

19

12.9

28.9

1591

830

0.253

381

150

19

14.2

30.2

1988

937

0.206

432

185

37

16.2

32.2

2452

1083

0.164

497

240

37

18.4

34.4

3182

1290

0.125

589

300

37

20.7

36.7

3977

1502

0.1

674


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