All electric: Conductor Calculations
Decimals(results):
1ϕ/3ϕ/DC
(1ϕ)Mono-fase
(3ϕ)Tri-fase
DC
V
[V]
Cond/Phase
Custom
AUTO
14
12
10
8
6
4
3
2
1
1/0
2/0
3/0
4/0
250
300
350
400
500
600
700
750
800
900
1000
1250
1500
1750
2000
I
[A]
I/cond
[A]
Icont
I*1.25
P
[W]
FP
S
[VA]
Q
[VAR]
Lmax
[m]
Imax
[A]
L
[m]
%e
[%]
e
[V]
=%e
[%]
=e
[V]
Ampacity
AWG/kcmil
mm
2
I
Icont
Ampacity
AWG/kcmil
mm
2
#/#I
e%
Isc
Ampacity
AWG/kcmil
mm
2
FT
FG
FT*FG
Lmax
[m]
Imax
[A]
=%e
[%]
=e
[V]
conductor Isc
[kA]
Ampacity
AWG/kcmil
mm
2
I
Icont
Ampacity
AWG/kcmil
mm
2
#/#I
e%
Isc
Ampacity
AWG/kcmil
mm
2
FT
FG
FT*FG
Tamb
[°C]
Tcond
60
75
90
150
200
250
[°C]
Conductor
Cu
Al
Conduit
PVC
Al
Fe
FT
FG
Cond/Conduit
FT*FG
conductor Isc
[kA]
Isc
[kA]
time Isc
[s]
T1
[°C]
T2
paper, rubber, varnished cloth, T2 = 200
thermoplastic, T2 = 150
cross-linked polyethylene, T2 = 250
ethylene propylene rubber, T2 = 250
[°C]
Ampacity
factor
TABLE
310.16
310.17
310.18
310.19
310.20
[%]
Cases Table Ampacity
Custom
Terminals
Cable trays
MONOCONDUCTOR/MULTICONDUCTOR
MONOCONDUCTOR
MULTICONDUCTOR
Cable configuration
Single Layer
Spacing 1 Conductor
Spacing 2.15 Conductor
Covers Cable Trays
Without Cover
With Cover
Table 310.16 Ampacities of Insulated Conductors with Not More Than Three Current-Carrying Conductors in Raceway, Cable, or Earth (Directly Buried)
Size AWG or kcmil
Temperature Rating of Conductor [See Table 310.4(1)]
60
75
90
60
75
90
COPPER
ALUMINUM
18
-
-
14
-
-
-
Table 250.122
Breaker, Not Exceeding (Amperes)
Size AWG or kcmil
COPPER
ALUMINUM
15
14
12
Table 250.66
Size of Largest Ungrounded Conductor or Equivalent Area for Parallel Conductores (AWG/kcmil)
Size Grounding Electrode Conductor (AWG/kcmil)
Copper
Aluminum
Copper
Aluminum
2 or smaller
1/0 or smaller
8
6
1 or 1/0
2/0 or 3/0
6
4
2/0 or 3/0
4/0 or 250
4
2
Over 3/0-350
Over 250-500
2
1/0
Over 350-600
Over 500-900
1/0
3/0
Over 600-1100
Over 900-1750
2/0
4/0
Over 1100
Over 1750
3/0
250
Current
Factors
Result
[A]*[F]
I
Icont
e%
Isc
FT
FG
FT*FG
Group
Apply