TABLE 5

Allowable Amperage of Conductors of 50 Volts or More

 

Temperature rating of conductor insulation

Conductor Size (AWG)

60¡ C

75¡ C

80¡ C

90¡ C

105¡ C

125¡ C

200¡ C

 

(140¡ F)

(167¡ F)

(176¡ F)

(194¡ F)

(221¡ F)

(257¡ F)

(392¡ F)

18

10

10

15

20

20

25

25

16

15

15

20

25

25

30

35

14

20

20

25

30

35

40

45

12

25

25

35

40

45

50

55

10

40

40

50

55

60

70

70

8

55

65

70

70

80

90

100

6

80

95

100

100

120

125

135

4

105

125

130

135

160

170

180

3

120

145

150

155

180

195

210

2

140

170

175

180

210

225

240

1

165

195

210

210

245

265

280

0

195

230

245

245

285

305

325

00

225

265

285

285

330

355

370

000

260

310

330

330

385

410

430

0000

300

360

385

385

445

475

510

 

Notes

             

1. See the following table:

60¡ C

75¡ C

80¡ C

90¡ C

105¡ C

125¡ C

200¡ C

 

(140¡ F)

(167¡ F)

(176¡ F)

(194¡ F)

(221¡ F)

(257¡ F)

(392¡ F)

Temperature rating of conductor

0.58

0.75

0.78

0.82

0.85

0.89

1.00

               

2. See the following table:

             

Number of current carrying conductors:

       
Correction
factor
 

3

       

0.70

 

4 to 6

       

.60

 

7 to 24

       

.50

 

25 and above

       

.40