User’s Guide — 15
♦
First Press
Calculates the derated wire size, if you
have entered the number of wires, for
example, 4 [Set] [ParSz]).
Displays: D/R WIRE SIZE.
♦
Second Press
Displays the maximum adjusted am-
pacity of the derated wire size.
Displays: D/R WIRE A.
♦
Third Press
Displays the derated adjustment factor
per the NEC Table 310-15(b)(2)(a).
Displays: ADJ %.
Voltage Drop Solutions
The
ElectriCalc Pro
will calculate
maximum lengths, minimum wire sizes
or actual voltage drops given the other
two values. Voltage drop solutions are
based on the DC resistance values
found in NEC Chapter 9, Table 8.
NOTE: Voltage drop solutions may vary
slightly from actual AC circuit values as
the calculator does not incorporate
factors such as inductive reactance,
skin effect, raceway material, etc.
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