ADC PowerWorx Power Distribution User Manual
Page 38
ADCP-80-575 • Issue 2 • December 2006
Page 32
© 2006, ADC Telecommunications, Inc.
* Unless otherwise specifically permitted in the code, as defined in the NEC document cited
(ANSI/NEC 70), the overcurrent protection for conductor types marked with an asterisk (*)
shall not exceed 15 amperes for No. 14, 20 amperes for No. 12, and 30 amperes for No. 10
copper, after any correction factors for ambient temperature and number of conductors have
been applied.
500
320
380
430
600
355
420
475
700
385
460
520
750
400
335
380
800
410
490
555
900
435
520
585
1000
455
545
615
1250
495
590
665
1500
520
625
705
1750
545
650
735
2000
560
665
750
CORRECTION FACTORS
For ambient temperatures other than 30C (86F), multiply
the allowable ampacities shown by the appropriate factor shown below.
21-25
1.08
1.05
1.04
26-30
1.00
1.00
1.00
31-35
.91
.94
.96
36-40
.82
.88
.91
41-45
.71
.82
.87
46-50
.58
.75
.82
51-55
.41
.67
.76
56-60
....
.58
.71
61-70
....
.33
.58
71-80
....
....
.41
Table 310-16 (NEC): Allowable Ampacities of Insulated Conductors, Rated O Through 2000 Volts, 60
° to
90
°C (140° to 194°F), Not More Than Three Current-Carrying Conductors in Raceway or Cable or Earth
(Directly Buried), Based on Ambient Temperature of 30
°C (86°F)
SIZE
TEMPERATURE RATING OF CONDUCTOR
AWG
KCMIL
60
°C
(114
°F)
60
°C
(114
°F)
60
°C
(114
°F)
TYPES
TW*,
UF*
TYPES
FEPW*,
RH*, RHW*,
THHW*,
THW*,
THWN*,
XHHW*,
USE*, ZW*
TYPES
TBS, SA,
SIS, FEP*,
FEPB*, MI,
RHH*, RHW-2,
THHN*,
THHW*, THW-2*,
THWN-2*,
USE-2,
XHH,
XHHW*
XHHW-2
ZW-2