Calculated Industries 5060 - Manual (Page 51)

User’s Guide — 49
Finding Voltage Drop Distance
How far from a single-phase 240-volt
source can you install a 15 amp load
using 60°C #10 aluminum branch circuit
conductors? Assume a 3% allowable
voltage drop.
Steps Keystrokes Display
Clear calculator
o o
0.
Set to 1-phase
S 1
1 PH
Set to aluminum
S 4
1Ø 60 Al 1 PH
Enter amps
15 A
AMPS 15.
Enter volts
240 U
VOLT 240.
Enter wire size
10 w
AWG 10 AL
WIRE SIZE
Enter 3% VD
3 v
DROP 3.0 V %
Find distance
l
FEET 123.77387
Find actual
voltage drop
v
DROP 7.2 AL V
Find % v.drop
v
DROP 3.0 AL V %
NOTE: The calculator automatically
makes adjustments for resistance using
NEC Chap 9, Table 8, if the insulation
type is other than 75°C.
* NOTE: See “Settings” for a list of
Permanent Values/settings. Changing
these settings may affect your calculations.