2011

Options tables
Options tables contain values defining defaults and options lists specific to
an electrical standard. For example, default to copper wiring, AWG size
standard, and feet for conductor length units.
The OPT table follows this table naming convention:
■ OPT - if no specific electrical standards table is found, the default table
name to use.
■ _{standard} - optional suffix to relate it to a specific electrical standards
code. For example, an “_NEC” suffix could mean that the data for the table
parallels the National Electrical Code. A suffixed OPT table name is not
necessary unless you plan to set up the electrical standards database to
support multiple standards.
DescriptionName
Default full load amps multiplier value used to determine a maximum load. For
example, the full load amps for a motor is rated at 10 amps and the FLA_MULT
FLA_MULT
default is set to 1.25. The minimum wire size calculation for the wiring for the
motor is based upon an ampacity rating of not 10 amps but 12.5 amps (10
amps x 1.25).
The FLA_MULT factor displays in the
Select Motor on page 710 and Wire Size
Lookup on page 712 dialog boxes.
Continuous load correction factor for wire size ampacity de-rating. If the elec-
trical load is anticipated to be a continuous load, a default de-rating factor can
be automatically applied to the wire size ampacity calculation.
C_LOAD
For example, a given electrical code defines the Continuous load correction
factor at a value of 0.8. This means that a given wire size that normally has a
maximum rated ampacity value of 20 amps is de-rated to a maximum ampacity
of 16 amps when the wiring is to power a motor that is expected to be a con-
tinuous load. The wire size calculation may need to select the next larger wire
size.
Default wire metal value used to determine appropriate wire ampacity and wire
insulation table names. For example, “CU” to define copper wiring as the default,
“AL” to define aluminum wiring as the default.
W_METAL
Default wire type standard used to determine appropriate wire ampacity and
wire insulation table names. For example, “AWG” or “MM2”.
W_STD
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