Okonite Ampacity Tables: Single Conductor Cable in Air

Ampacity Tables
Single Conductor In Air

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Single conductor cable in air

Single conductor cable
in air

Open circuited shield operation, i.e. shields bonded and grounded at one point only.

Air ambient temperature is 40°C. 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.

One cable per support or messenger

Copper

Conductor Size AWG-kcmil	Non-Shielded	Shielded
	600-5000 Volts Ampacity	2001-5000 Volts Ampacity		5001-15,000 Volts Ampacity		15,001-35,000 Volts Ampacity
	90° C (194°F)	90° C (194°F)	105°C (221°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......... 1250......... 1500......... 1750......... 2000.........	83......... 109......... 145......... 192......... 223......... 258......... 298......... 345......... 400......... 445......... 552......... 695......... 898......... 1076......... 1228......... 1367......... 1493......... 1606.........	83... 110... 145... 190... 225... 260... 300... 345... 400... 445... 550... 695... 900... 1075... 1230... 1365... 1495... 1605...	93... 120... 160... 215... 250... 290... 330... 385... 445... 495... 615... 775... 1000... 1200... 1370... 1525... 1665... 1790...	—... 110... 150... 195... 225... 260... 300... 345... 400... 445... 550... 685... 885... 1060... 1210... 1345... 1470... 1575...	—... 125... 165... 215... 250... 290... 335... 385... 445... 495... 610... 765... 990... 1185... 1350... 1500... 1640... 1755...	—... —... —... —... 225... 260... 300... 345... 395... 440... 545... 680... 870... 1040... 1185... 1315... 1430... 1535...	—... —... —... —... 250... 290... 330... 380... 445... 490... 605... 755... 970... 1160... 1320... 1465... 1595... 1710...

Aluminum

Conductor Size AWG-kcmil	Non-Shielded	Shielded
	600-5000 Volts Ampacity	2001-5000 Volts Ampacity		5001-15,000 Volts Ampacity		15,001-35,000 Volts Ampacity
	90° C (194°F)	90° C (194°F)	105°C (221°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......... 1250......... 1500......... 1750......... 2000.........	64......... 85......... 113......... 150......... 174......... 201......... 232......... 269......... 312......... 347......... 431......... 544......... 707......... 853......... 982......... 1103......... 1216......... 1321.........	64... 85... 115... 150... 175... 200... 230... 270... 310... 345... 430... 545... 710... 855... 980... 1105... 1215... 1320...	71... 95... 125... 165... 195... 225... 260... 300... 350... 385... 480... 605... 790... 950... 1095... 1230... 1355... 1475...	—... 87... 115... 150... 175... 200... 235... 270... 310... 345... 430... 535... 700... 840... 970... 1085... 1195... 1295...	—... 97... 130... 170... 195... 225... 260... 300... 350... 385... 480... 600... 780... 940... 1080... 1215... 1335... 1445...	—... —... —... —... 175... 200... 230... 270... 310... 345... 430... 530... 685... 825... 950... 1060... 1165... 1265...	—... —... —... —... 195... 225... 260... 300... 345... 380... 475... 590... 765... 920... 1055... 1180... 1300... 1410...

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