okonite wire and cable - single conductor underground direct burial
Ampacity Tables
Single Conductor
Underground Direct Burial

 Okonite Product Catalog

Engineering Technical Center
Okonite Home Page
Contact Okonite

Ask The Experts.

 

single conductor cable direct burial

Single conductor cable
direct burial

1/C group buried 36” deep with cables laid on 7-1/2” centers, open circuited shield operation, i.e. shields bonded and grounded at one point only.

Earth ambient temperature 20°C
Earth thermal resistivity RHO 90
100% load factor

 

One circuit — three cables
one conductor Copper - direct burial one conductor Aluminum - direct burial

Conductor
Size
AWG-kcmil

Non-Shielded

Shielded

600-2000 Volts
Ampacity

2001-5000 Volts
Ampacity

5001-35000 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.........
1250.........
1500.........
1750.........
2000.........

108.........
139.........
180.........
231.........
261.........
297.........
337.........
384.........
434.........
472.........
569.........
690.........
847.........
980.........
1083.........
1176.........
1257.........
1325.........

110...
140...
180...
230...
260...
295...
335...
385...
435...
470...
570...
690...
845...
980...
1085...
1175...
1255...
1325...

.115...
150...
195...
250...
280...
320...
365...
415...
465...
510...
615...
745...
910...
1055...
1165...
1265...
1355...
1430...

—...
130...
170...
210...
240...
275...
310...
355...
405...
440...
535...
650...
805...
930...
1035...
1125...
1200...
1265...

—...
140...
180...
225...
260...
295...
335...
380...
435...
475...
575...
700...
865...
1005...
1115...
1210...
1295...
1365...

Non-Shielded

Shielded

600-2000 Volts
Ampacity

2001-5000 Volts
Ampacity

5001-35000 Volts
Ampacity

90° C
(194°F)

90° C
(194°F)

105°C
(221°F)

90° C
(194°F)

105°C
(221°F)

84.........
108.........
140.........
180.........
203.........
231.........
263.........
299.........
338.........
368.........
444.........
540.........
667.........
778.........
868.........
952.........
1027.........
1094.........

85...
110...
140...
180...
205...
230...
265...
300...
340...
370...
445...
540...
665...
780...
870...
950...
1025...
1095...

90...
115...
150...
195...
220...
250...
285...
320...
365...
395...
480...
580...
720...
840...
935...
1025...
1105...
1180...

....—...
110...
130...
165...
185...
215...
245...
275...
315...
345...
415...
510...
635...
740...
830...
910...
980...
1045...

—...
110...
140...
175...
200...
230...
260...
295...
340...
370...
450...
545...
680...
795...
895...
980...
1060...
1130...

 

single conductor cable direct burial

Single conductor cable
direct burial

1/C group buried 36” deep with cables laid on 7-1/2” centers, second circuit similarly spaced. Groups separated 24", open circuited shield operation, i.e. shields bonded and grounded at one point only.

Earth ambient temperature 20°C
Earth thermal resistivity RHO 90
100% load factor

 

Two circuits — six cables
one conductor Copper - direct burial one conductor Aluminum - direct burial

Conductor
Size
AWG-kcmil

Non-Shielded

Shielded

600-2000 Volts
Ampacity

2001-5000 Volts
Ampacity

5001-35000 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.........
1250.........
1500.........
1750.........
2000.........

101.........
130.........
167.........
214.........
241.........
275.........
311.........
354.........
399.........
435.........
522.........
631.........
773.........
892.........
985.........
1068.........
1140.........
1200.........

100...
130...
165...
215...
240...
275...
310...
355...
400...
435...
520...
630...
775...
890...
985...
1070...
1140...
1200...

.110...
140...
180...
230...
260...
295...
335...
380...
430...
470...
560...
680...
835...
960...
1060...
1150...
1230...
1295...

—...
120...
160...
195...
225...
255...
290...
330...
375...
410...
495...
600...
740...
855...
945...
1025...
1095...
1150...

—...
130...
170...
210...
240...
275...
315...
355...
405...
440...
530...
645...
795...
920...
1020...
1105...
1180...
1240...

Non-Shielded

Shielded

600-2000 Volts
Ampacity

2001-5000 Volts
Ampacity

5001-35000 Volts
Ampacity

90° C
(194°F)

90° C
(194°F)

105°C
(221°F)

90° C
(194°F)

105°C
(221°F)

79.........
101.........
130.........
167.........
188.........
214.........
243.........
276.........
311.........
339.........
408.........
494.........
609.........
708.........
790.........
865.........
932.........
991.........

80...
100...
130...
165...
190...
215...
245...
275...
310...
340...
410...
495...
610...
710...
790...
865...
930...
990...

85...
110...
140...
180...
200...
230...
260...
295...
335...
365...
440...
530...
655...
765...
851...
930...
1005...
1070...

—...
95...
125...
155...
175...
200...
225...
255...
290...
320...
385...
470...
580...
680...
760...
830...
895...
950...

—...
100...
130...
165...
190...
215...
245...
275...
315...
345...
415...
505...
625...
730...
820...
895...
965...
1025...

 

ENGINEERING TECHNICAL CENTER

| WELCOME | WHAT'S NEW | PRODUCT OVERVIEW | PRODUCT CATALOG | EVENTS |
| SALES OFFICES | MANUFACTURING PLANTS | SERVICE CENTERS | GLOSSARY | U.S. MAP |
 | ENGINEERING TECHNICAL CENTER | SEARCH OKONITE | SURPLUS INVENTORY |
DAILY PRICES FOR COPPER, LEAD, ALUMINUM AND STEEL SHEETS
| HOMEPAGE | CONTACT US |