Okonite Ampacity Tables: 3 Conductor Cable in Air

Ampacity Tables
Three Conductor In Air

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3 conductor cable in air

Three conductor
cable in air

Any load factor from 30 to 100%.

The ampacities are for a single loaded cable in still air. In a group of loaded cables in close proximity in air, exposed or enclosed, follow the correction method shown on the ampacity correction factors page.

Air ambient temperature 40°C.

One cable in air per support or messenger

Copper

Conductor Size AWG-kcmil	Non-Shielded	Shielded
	600-5000 Volts Ampacity	2001-5000 Volts Ampacity		5001-35,000 Volts Ampacity
	90° C (194°F)	90° C (194°F)	105°C (221°F)	90° C (194°F)	105°C (221°F)
8......... .6......... 4......... 2......... 1......... 1/0......... 2/0......... 3/0......... 4/0......... 250......... 350......... 500......... 750......... 1000........\	59......... 79......... 104......... 138......... 161......... 186......... 215......... 249......... 287......... 320......... 394......... 487......... 615......... 707.........	59... 79... 105... 140... 160... 185... 215... 250... 285... 320... 395... 485... 615... 705...	66... 88... 115... 154... 180... 205... 240... 280... 320... 355... 440... 545... 685... 790...	—... 93... 120... 165... 185... 215... 245... 285... 325... 360... 435... 535... 670... 770...	—... 105... 135... 185... 210... 240... 275... 315... 360... 400... 490... 600... 745... 860...

Aluminum

Conductor Size AWG-kcmil	Non-Shielded	Shielded
	600-5000 Volts Ampacity	2001-5000 Volts Ampacity		5001-35,000 Volts Ampacity
	90° C (194°F)	90° C (194°F)	105°C (221°F)	90° C (194°F)	105°C (221°F)
8......... .6......... 4......... 2......... 1......... 1/0......... 2/0......... 3/0......... 4/0......... 250......... 350......... 500......... 750......... 1000........\	46......... 61......... 81......... 108......... 126......... 145......... 168......... 194......... 224......... 250......... 309......... 385......... 495......... 584.........	46... 61... 81... 110... 125... 145... 170... 195... 225... 250... 310... 385... 495... 585...	51... 68... 90... 120... 140... 160... 185... 215... 250... 280... 345... 430... 550... 650...	—... 72... 95... 125... 145... 170... 190... 220... 255... 280... 345... 425... 540... 635...	—... 80... 105... 145... 165... 185... 215... 245... 285... 315... 385... 475... 600... 705...

ENGINEERING TECHNICAL CENTER

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