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Busway Sizing Calculator
Size busway (bus duct) for feeder and plug-in applications per NEC 368.
Design Load Current
?
Total design load current.
A
Growth Factor
?
Future growth allowance.
Busway Length
?
Total busway run length.
ft
System Voltage
?
Line-to-line voltage.
V
Calculate
Results
Design Ampacity
-
A
Voltage Drop (est)
-
V
Voltage Drop
-
%
References:
NEC Article 368; UL 857; NEMA BU 1