Handbook of Electrical Tables and Design Criteria

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

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

Short-Circuit Tables and Data: 240 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

903

824

757

700

651

609

539

483

438

400

368

342

318

272

237

211

189

172

157

135

118

105

85

72

3

2,270

1,826

1,527

1,313

1,151

1,025

840

712

618

546

488

442

404

332

282

245

217

194

176

148

128

112

91

76

5

3,256

2,414

1,918

1,591

1,360

1,187

946

787

673

588

523

470

427

347

293

253

223

199

180

151

130

114

92

77

10

4,828

3,182

2,373

1,892

1,573

1,346

1,045

854

722

625

551

493

446

360

302

260

228

203

183

153

132

115

92

77

15

5,754

3,560

2,577

2,020

1,661

1,410

1,083

879

740

638

562

501

453

364

305

262

230

205

184

154

132

116

93

77

20

6,365

3,785

2,693

2,090

1,708

1,444

1,103

892

749

645

567

506

456

367

306

263

231

205

185

154

132

116

93

77

25

6,798

3,934

2,768

2,135

1,737

1,465

1,115

900

755

650

570

508

458

368

307

264

231

206

185

155

133

116

93

78

30

7,120

4,039

2,820

2,166

1,758

1,479

1,123

905

758

652

572

510

460

369

308

264

232

206

186

155

133

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