Handbook of Electrical Tables and Design Criteria

Fault-Current Calculations with Short-Circuit Tables and Data-Continued

Single-Phase L-N Fault-Current Tables-Continued

Short-Circuit Tables and Data: 600 Volts Single-Phase L-L

Single-Phase L-L Bolted Fault-Current [*] Table
One-Way Distance in Feet
Available Isc in Thousands (Isca)

5

10

15

20

25

30

40

50

60

70

80

90

100

125

150

175

200

225

250

300

350

400

500

600

1

959

921

886

854

824

796

745

700

660

625

593

565

539

483

438

400

368

342

318

280

250

226

189

163

3

2,658

2,387

2,165

1,981

1,826

1,694

1,479

1,313

1,180

1,072

981

905

840

712

618

546

488

442

404

344

300

266

217

183

5

4,118

3,500

3,044

2,693

2,414

2,188

1,842

1,591

1,400

1,250

1,129

1,030

946

787

673

588

523

470

427

361

313

276

223

187

10

7,001

5,385

4,376

3,685

3,182

2,801

2,259

1,892

1,628

1,429

1,273

1,148

1,045

854

722

625

551

493

446

374

323

283

228

191

15

9,131

6,564

5,123

4,201

3,560

3,089

2,442

2,020

1,722

1,500

1,329

1,193

1,083

879

740

638

562

501

453

379

326

286

230

192

20

10,771

7,370

5,601

4,517

3,785

3,257

2,546

2,090

1,773

1,539

1,360

1,218

1,103

892

749

645

567

506

456

382

328

288

231

193

25

12,071

7,956

5,933

4,731

3,934

3,366

2,613

2,135

1,805

1,563

1,378

1,233

1,115

900

755

650

570

508

458

383

329

288

231

193

30

13,127

8,402

6,178

4,885

4,039

3,443

2,659

2,166

1,827

1,579

1,391

1,243

1,123

905

758

652

572

510

460

384

330

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