okonite wire and cable - triplexed conductors underground direct burial
Ampacity Tables
Triplexed Conductor
Underground Direct Burial

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Triplexed cable direct burial

Triplexed cable
direct burial

Triplexed cables or three single conductors buried 36” deep and separated by 24”. Shields bonded and grounded at multiple points.

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

 

One circuit

Three single or triplexed conductors
Copper - direct burial
Three single or triplexed conductors
Aluminum - direct burial

Conductor
Size
AWG-kcmil

Non-Shielded

Shielded

600-2000 Volts
Ampacity

2001-5000 Volts
Ampacity

5001-35000 Volts
Ampacity

90 C
(194F)

90 C
(194F)

105C
(221F)

90 C
(194F)

105C
(221F)

8.........
.
6
.........
4
.........
2
.........
1
.........
1/0
.........
2/0
.........
3/0
.........
4/0
.........
250
.........
350
.........
500
.........
750
.........
1000
........\

92.........
118
.........
153
.........
197
.........
223
.........
255
.........
289
.........
329
.........
373
.........
408
.........
490
.........
592
.........
724
.........
825
.........

90...
120
...
150
...
195
...
225
...
255
...
290
...
330
...
375
...
410
...
490
...
590
...
725
...
825
...

100...
125
...
165
...
210
...
240
...
275
...
310
...
355
...
400
...
440
...
530
...
640
...
780
...
890
...

...
115
...
150
...
190
...
215
...
245
...
275
...
315
...
360
...
390
...
470
...
565
...
685
...
770
...

...
125
...
160
...
200
...
230
...
265
...
300
...
340
...
385
...
420
...
505
...
605
...
735
...
830
...

Non-Shielded

Shielded

600-2000 Volts
Ampacity

2001-5000 Volts
Ampacity

5001-35000 Volts
Ampacity

90 C
(194F)

90 C
(194F)

105C
(221F)

90 C
(194F)

105C
(221F)

72.........
92
.........
119
.........
153
.........
174
.........
198
.........
226
.........
257
.........
291
.........
319
.........
385
.........
467
.........
579
.........
672
.........

70...
90
...
120
...
155
...
175
...
200
...
225
...
255
...
290
...
320
...
385
...
465
...
580
...
670
...

80...
100
...
130
...
165
...
185
...
215
...
245
...
275
...
315
...
345
...
415
...
505
...
625
...
725
...

...
90
...
115
...
145
...
165
...
190
...
215
...
245
...
280
...
305
...
370
...
445
...
550
...
635
...

...
100
...
125
...
160
...
180
...
205
...
235
...
265
...
300
...
330
...
400
...
480
...
595
...
685
...

 

Two circuits

Three single or triplexed conductors
Copper - direct burial
Three single or triplexed conductors
Aluminum - direct burial

Conductor
Size
AWG-kcmil

Non-Shielded

Shielded

600-2000 Volts
Ampacity

2001-5000 Volts
Ampacity

5001-35000 Volts
Ampacity

90 C
(194F)

90 C
(194F)

105C
(221F)

90 C
(194F)

105C
(221F)

8.........
.
6
.........
4
.........
2
.........
1
.........
1/0
.........
2/0
.........
3/0
.........
4/0
.........
250
.........
350
.........
500
.........
750
.........
1000
........\

85.........
109
.........
141
.........
181
.........
205
.........
233
.........
264
.........
300
.........
339
.........
370
.........
444
.........
534
.........
649
.........
738
.........

85...
110
...
140
...
180
...
205
...
235
...
265
...
300
...
340
...
370
...
445
...
535
...
650
...
740
...

90...
115
...
150
...
195
...
220
...
250
...
285
...
325
...
365
...
400
...
480
...
575
...
700
...
795
...

...
105
...
140
...
175
...
200
...
225
...
255
...
290
...
325
...
355
...
425
...
510
...
615
...
690
...

...
115
...
150
...
185
...
215
...
240
...
275
...
310
...
350
...
385
...
460
...
550
...
660
...
740
...

Non-Shielded

Shielded

600-2000 Volts
Ampacity

2001-5000 Volts
Ampacity

5001-35000 Volts
Ampacity

90 C
(194F)

90 C
(194F)

105C
(221F)

90 C
(194F)

105C
(221F)

67.........
85
.........
110
.........
141
.........
160
.........
182
.........
206
.........
234
.........
265
.........
289
.........
348
.........
421
.........
520
.........
601
.........

65...
85
...
110
...
140
...
160
...
180
...
205
...
235
...
265
...
290
...
350
...
420
...
520
...
600
...

70...
90
...
120
...
150
...
170
...
195
...
220
...
250
...
285
...
310
...
375
...
455
...
560
...
645
...

...
85
...
105
...
135
...
155
...
175
...
200
...
225
...
255
...
280
...
335
...
405
...
485
...
565
...

...
90
...
115
...
145
...
165
...
190
...
215
...
240
...
275
...
300
...
360
...
435
...
535
...
610
...

 


ENGINEERING TECHNICAL CENTER

Every effort has been made to ensure the accuracy of this presentation.
However, information is subject to change. Not responsible for typographical errors.

The Okonite Company
102 Hilltop Road
Ramsey, New Jersey 07446
Phone 201-825-0300
Fax 201-825-3524
info@okonite.com

Made In the USA