Graphics Programs Reference
In-Depth Information
Home Runs
With this setting, tick marks are displayed only on wiring
home runs and not on wires between devices on the same circuit.
In this section, you can also define the maximum voltage drop percentage
for branch circuits and feeders.
The Wire Sizes section of the Electrical Settings dialog box allows you to
define the sizes of wires you want to use for different circuit ampacities.
You can set the wire sizes for aluminum and copper wire. You can even
create a different wire material, temperature rating, or insulation type if
your project requires it. You can vary the wire sizes for the three standard
wire-temperatureratingsandfordifferenttypesofinsulation.Thisgivesyou
theabilitytocontrolthetypesofwiresusedfordifferentcircuitsbecauseyou
can remove ampacity ratings for different wire temperature and insulation
combinations.
The Used By Sizing column allows you to establish which wire sizes are
available to be used when the wire size of a circuit is calculated. You can
assign only one wire size per ampacity, so if, for example, you want to use
#12 wire for 15-amp and 20-amp circuits, you would have to delete the 15 A
ampacity and set the size for the 20 A ampacity to #12 wire. This does not
mean you cannot use a 15-amp circuit in your project. The smallest wire size
available in your list is for an ampacity smaller than the smallest in your list.
Figure14.2
showsanexampleofwiresizesforaproject.Anycircuitssmaller
than 20 amps in the project have to use #12 wire.
