Ampacities According to ICEA S-75-381

 

Ampacities for Portable Power Cables--Table 1 :

  • Power
    Conductor Size
    (AWG or kcmil)
    Single Conductor Two Conductor
    Round and Flat
    0-2000V
    Three Conductor
    Round and Flat
    0-5000V Nonshielded
    0-2000V
    Nonshielded
    2001-8000V
    Shielded
    8001-15000V
    Shielded
    15001-25000V
    Shielded
    8 83 — — — 72 59
    6 109 112 — — 95 79
    4 145 148 — — 127 104
    3 167 171 — — 145 120
    2 192 195 195 — 167 138
    1 223 225 225 222 191 161
    1/0 258 260 259 255 217 186
    2/0 298 299 298 293 250 215
    3/0 345 345 343 337 286 249
    4/0 400 400 397 389 328 287
    250 445 444 440 430 363 320
    300 500 496 491 480 400 357
    350 552 549 543 529 436 394
    400 600 596 590 572 470 430
    450 650 640 633 615 497 460
    500 695 688 678 659 524 487

Ampacities for Portable Power Cables--Table 2 :

  • Power
    Conductor Size
    (AWG or kcmil)
    Three Conductor Round Four Conductor Five Conductor Six Conductor
    0-8000V
    Shielded
    8001-15000V
    Shielded
    15001-25000V
    Shielded
    0-2000V 0-2000V 0-2000V
    8 — — — 54 50 48
    6 93 — — 72 68 64
    4 122 — — 93 88 83
    3 140 — — 106 100 95
    2 159 164 178 122 116 110
    1 184 187 191 143 136 129
    1/0 211 215 218 165 — —
    2/0 243 246 249 192 — —
    3/0 279 283 286 221 — —
    4/0 321 325 327 255 — —
    250 355 359 360 280 — —
    300 398 — — 310 — —
    350 435 — — 335 — —
    400 470 — — 356 — —
    450 503 — — 377 — —
    500 536 — — 395 — —

Ampacities for Mine Power Feeder Cables :

  • 5000~25,000V Copper
    Conductor Size Ampacities
    (AWG or kcmil) 5000 & 8000V 15000V 25000V
    6 93 — —
    4 122 125 —
    2 159 164 —
    1 184 187 189
    1/0 211 215 216
    2/0 243 246 247
    3/0 279 283 284
    4/0 321 325 325
    250 355 359 359
    300 398 401 401
    350 435 438 438
    400 470 473 473
    500 536 536 536