โปรแกรมคำนวณ


SYSTEM PARAMETER & CABLE INSTALLATION

VOLTAGE
220 V
380 V
Other
V
FREQUENCY
50 Hz
60 Hz
Other
Hz
CONDUCTORS RATING
70 °C
90 °C
Other
°C
POWER FACTOR
LAGGING
Dan =
mm
SIZE
mm2
LOAD CURRENT
A
MAXIMUM VOLTAGE DROP
%
MINIMUM CONDUCTOR SIZE
MM2
NOTE :
NEC RECOMMENDATIONS

1. Branch Circuits – maximum voltage drop of 3%. (The maximum total voltage drop for a combination of both branch circuit and feeder should not exceed 5%)

2. Feeders – maximum voltage drop of 3%. (The maximum total voltage drop for a combination of both branch circuit and feeder should not exceed 5%)

3. Services - maximum voltage drop of 5%.


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