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: 240 Volts Three-Phase

Three-Phase 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

915

844

782

729

683

642

574

519

473

435

403

375

350

301

264

235

212

193

177

152

133

119

97

82

3

2,347

1,927

1,635

1,420

1,255

1,124

930

793

691

613

550

499

457

377

321

279

247

222

201

170

146

129

104

87

5

3,416

2,594

2,091

1,751

1,506

1,322

1,061

887

762

667

594

535

487

397

335

290

256

229

207

173

149

131

106

88

10

5,188

3,502

2,644

2,123

1,774

1,523

1,188

973

824

715

631

565

511

413

347

299

262

234

211

177

152

133

107

89

15

6,273

3,965

2,899

2,285

1,885

1,605

1,236

1,006

848

732

645

576

520

419

351

302

265

236

213

178

152

134

107

89

20

7,005

4,246

3,046

2,375

1,946

1,649

1,263

1,023

860

741

652

582

525

422

353

303

266

237

213

178

153

134

107

89

25

7,532

4,434

3,142

2,433

1,985

1,676

1,279

1,033

867

747

656

585

528

424

354

304

267

237

214

178

153

134

107

90

30

7,931

4,569

3,209

2,473

2,012

1,695

1,290

1,041

872

751

659

587

530

425

355

305

267

238

214

179

153

134

107

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