ASTM B856 Aluminum Conductor Steel Supported ACSS Conductor

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Product Details

Product parameter

Application

ACSS Conductor is used for overhead distribution and transmission lines. Designed to operate continuously at elevated temperatures up to 250℃ without loss of strength.
It sags less under emergency electrical loadings than ACSR; it is self-damping if pre stretched during installation, and the final sags are not affected by long term creep of aluminum.

Advantages

The advantages make Aluminum Conductor Steel Supported especially useful in reconductoring applications requiring increased current with existing tensions and clearances, new line applications where structures can be economized because of reduced conductor sag, new line applications requiring high emergency loadings, and lines where aeolian vibration is a problem.

ACSS Conductor Full Form Construction

ACSS cable is a composite concentric-lay stranded conductor. Steel strands form the central core of the conductor with one or more layers of aluminum 1350-0 wire stranded around it.
The steel core carries most or all of the mechanical load of the ACSS wire due to the (fully annealed or soft) temper aluminum. Steel core wires are protected from corrosion by galvanizing, aluminizing, or mischmetal alloy coating.
Corrosion protection should be selected to suit the environment to which the conductor will be exposed. High strength steel core is also available.

ASTM--Standard-ACSS-(2)

Options of Steel Cores

-Regular-Strength Class C galvanized steel core
-High-Strength Class A galvanized steel core
-Extra-High-Strength Class A galvanized steel core
-Ultra-High-Strength Class A galvanized steel core
-Regular-Strength Class A zinc-5% aluminum mischmetal alloy-coated steel core
-High-Strength Class A zinc-5% aluminum mischmetal alloy-coated steel core
-Extra-High-Strength Class A zinc-5% aluminum mischmetal alloy-coated steel core
-Ultra-High-Strength Class A zinc-5% aluminum mischmetal alloy-coated steel core
-Aluminum-clad Steel Core
-250℃ Operating Temperature rating utilizing either the zinc-5% aluminum mischmetal alloy-coated steel core wires, or the aluminum-clad steel core wires.
-Non-specular surface finish

Packing

Delivery lengths are determined from a consideration of such factors as physical drum dimensions, drum weights, span length, handling equipment or the customer’s request.

Packing Materials

Wooden drum, steel-wooden drum, steel drum.

Standards

- B500 Metallic Coated Stranded Steel Core for Use in Overhead Electrical Conductors -B502/B502M (optional) Standard Specification for Aluminum-Clad Steel Core Wire for Use in Overhead Electrical Aluminum Conductors
-B609 Aluminum 1350 Round Wire, Annealed and Intermediate Tempers, for Electrical Purposes
-B802 Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Aluminum Conductors Steel Reinforced (ACSR)
-B803 High-Strength Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors
-B856 Concentric-Lay-Stranded Aluminum Conductors, Coated Steel Supported (ACSS)
-B958 Extra-High-Strength and Ultra-High-Strength Class A Zinc-5% Aluminum-Mischmetal Alloy-Coated Steel Core Wire for Use in Overhead Electrical Conductors

ASTM B856 Standard Aluminum Conductor Steel Supported ACSS Conductor Specifications Physical, Mechanical and Electrical Performance Parameters

Code Name

Size

No. of   Wires

Dia.of Individual Wire

Dia.of Steel Core

Dia.of Complete Cable

Nominal Weight per 1000ft

Rated Strength

Resistance D.C. at 20℃

Resistance D.C. at 75℃

Ampacity

Al./St.

Alum.

Steel

Alum.

Steel

Total

-

 kcmil

-

Inch

inch

inch

inch

Ib

Ib

Ib

Ib

Ω/MFT

Ω/MFT

A

Partridge ACSS

266.8

26/7

0.1013

0.0788

0.2364

0.642

251.3

115.6

366.9

8,880

0.0619

0.0761

812

Junco ACSS

266.8

30/7

0.0943

0.0943

0.2829

0.66

251.3

165.5

416.8

11,700

0.0615

0.0756

822

Ostrich ACSS

300

26/7

0.1074

0.0835

0.2505

0.68

282.5

129.8

412.3

10,000

0.0551

0.0677

877

Woodcock ACSS

336.4

22/7

0.1237

0.0687

0.2061

0.701

317.1

84.8

401.9

7,610

0.0495

0.0609

933

Linnet ACSS

336.4

26/7

0.1137

0.0884

0.2652

0.72

316.6

145.5

462.1

11,200

0.0491

0.0604

945

Oriole ACSS

336.4

30/7

0.1059

0.1059

0.3177

0.741

317.7

208.7

526.4

14,800

0.0488

0.06

957

Ptarmigan ACSS

397.5

20//7

0.141

0.0627

0.1881

0.752

374.5

73.2

447.7

7,090

0.0421

0.0518

1034

Brant ACSS

397.5

24/7

0.1287

0.0858

0.2574

0.772

374.4

137

511.4

11,000

0.0417

0.0514

1047

Ibis ACSS

397.5

26/7

0.1236

0.0961

0.2883

0.783

374.1

171.9

546

13,000

0.0416

0.0512

1054

Lark ACSS

397.5

30/7

0.1151

0.1151

0.3453

0.806

375.3

246.6

621.9

17,500

0.0413

0.0508

1068

Tailorbird ACSS

477

20/7

0.1544

0.0686

0.2058

0.823

449.1

87.6

536.7

8,490

0.0351

0.0433

1165

Flicker ACSS

477

24/7

0.141

0.094

0.282

0.846

449.4

164.5

613.9

13,000

0.0348

0.0429

1180

Hawk ACSS

477

26/7

0.1354

0.1053

0.3159

0.858

449

206.4

655.4

15,600

0.0346

0.0427

1188

Hen ACSS

477

30/7

0.1261

0.1261

0.3783

0.883

450.4

296

746.4

21,000

0.0344

0.0424

1204

Sapsucker ACSS

556.5

22/7

0.159

0.0883

0.2649

0.901

523.9

145.1

669

12,600

0.0299

0.037

1297

Parakeet ACSS

556.5

24/7

0.1523

0.1015

0.3045

0.914

524.3

191.8

716.1

15,200

0.0298

0.0368

1306

Dove ACSS

556.5

26/7

0.1463

0.1138

0.3414

0.927

524.2

241

765.2

18,200

0.0297

0.0366

1315

Eagle ACSS

556.5

30/7

0.1362

0.1362

0.4068

0.953

525.5

345.3

870.8

24,500

0.0295

0.0363

1331

Peacock ACSS

605

24/7

0.1588

0.1059

0.3177

0.953

570

208.7

778.7

16,500

0.0274

0.0339

1379

Squab ACSS

605

26/7

0.1525

0.1186

0.3558

0.966

569.5

261.8

831.3

19,700

0.0273

0.0337

1389

Wood Duck ACSS

605

30/7

0.142

0.142

0.426

0.994

571.2

375.3

946.5

26,100

0.0271

0.0334

1407

Teal ACSS

605

30/19

0.142

0.0852

0.426

0.994

571.2

367.5

938.7

26,600

0.0272

0.0335

1406

Goldfinch ACSS

636

22/7

0.17

0.0944

0.2832

0.963

598.9

165.9

764.8

14,100

0.0262

0.0324

1415

Rook ACSS

636

24/7

0.1628

0.1085

0.3255

0.977

599.1

219.1

818.2

17,300

0.0261

0.0322

1425

Grosbeak ACSS

636

26/7

0.1564

0.1216

0.3648

0.99

599

275.2

874.2

20,700

0.026

0.0321

1435

Scoter ACSS

636

30/7

0.1456

0.1456

0.4368

1.019

600.5

394.6

995.1

27,400

0.0258

0.0318

1454

Egret ACSS

636

30/19

0.1456

0.0874

0.437

1.019

600.5

386.7

987.2

28000

0.0258

0.0319

1453

Flamingo ACSS

666.6

24/7

0.1667

0.1111

0.3333

1

628.2

229.7

857.9

18,200

0.0249

0.0308

1470

Gannet ACSS

666.6

26/7

0.1601

0.1245

0.3735

1.014

627.7

288.5

916.2

21,700

0.0248

0.0306

1480

Stilt ACSS

715.5

24/7

0.1727

0.1151

0.3453

1.036

674.2

246.6

920.8

19,500

0.0232

0.0287

1540

Starling ACSS

715.5

26/7

0.1659

0.129

0.387

1.051

674

309.7

983.7

23,300

0.0231

0.0286

1550

Redwing ACSS

715.5

30/19

0.1544

0.0926

0.463

1.081

675.3

434.1

1109.4

30,800

0.023

0.0284

1570

Cuckoo ACSS

795

24/7

0.182

0.1213

0.3639

1.092

748.8

273.9

1022.7

21,700

0.0209

0.0259

1650

Drake ACSS

795

26/7

0.1749

0.136

0.408

1.108

749.1

344.3

1093.4

25,900

0.0209

0.0257

1662

Macaw ACSS

795

1/6

0.1376

0.0764

0.2292

1.055

749

108.6

857.6

11,800

0.0211

0.0262

1621

Tern ACSS

795

45/7

0.1329

0.0886

0.2658

1.063

748.6

146.1

894.7

14,200

0.021

0.0263

1618

Condor ACSS

795

54/7

0.1213

0.1213

0.3639

1.092

748.4

273.9

1022.3

21,700

0.0209

0.0026

1618

Mallard ACSS

795

30/19

0.0628

0.0977

0.4885

1.14

750.7

483.2

1233.9

34,300

0.0207

0.0255

1683

Ruddy ACSS

900

45/7

0.1414

0.0943

0.2829

1.131

847.4

165.5

1012.9

15,800

0.0186

0.0233

1755

Canary ACSS

900

54/7

0.1291

0.1291

0.3873

1.162

847.7

310.2

1157.9

24,600

0.0184

0.0236

1756

Corncrake ACSS

954

20/7

0.2184

0.0971

0.2913

1.165

898.5

175.5

1074

16,700

0.0175

0.0219

1834

Redbird ACSS

954

24/7

0.1994

0.1329

0.3987

1.196

898.8

328.7

1227.5

26,000

0.0174

0.0217

1859

Rail ACSS

954

45/7

0.1456

0.0971

0.2913

1.165

898.5

175.5

1074

16,700

0.0175

0.022

1824

Cardinal ACSS

954

54/7

0.1329

0.1329

0.3987

1.196

899

329

1227

28000

0.0174

0.0225

1800

Canvasback ACSS

954

30/19

0.1783

0.107

0.535

1.248

901

580

1480

41100

0.0172

0.0214

1900

Dipper ACSS

1351.5

45/7

0.1733

0.1155

0.3465

1.386

1273

248

1521

23700

0.0124

0.0163

2235

Martin ACSS

1351.5

54/19

0.1582

0.0949

0.4745

1.424

1279

456

1735

36200

0.0123

0.0161

2260

Falcon ACSS

1590

54/19

0.1716

0.103

0.5148

1.545

1505

537

2042

42600

0.0105

0.0138

2520

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