Line Location and Length Properties
The Geographical Location and Length fields stored for a component may
at times vary from the schematic (graphic) representation, due to the
occurrence of zero-length components in the drawing. Both electrical and
water distribution systems contain the zero-length type component.
In the electrical systems, components such as switches, capacitors,
transformers, start-of-circuits, etc. are all defined as zero-length,
while cables, overhead lines, bus bars, etc. are defined with length properties.
In the water distribution system, typical zero-length
components are valves, pumps, hydrants, etc, while the piping is defined
with length property.
The following series of screen shots provides a detailed illustration
on the location and length interactions between various components in
the DEW model. While this illustration utilizes water distribution components,
exactly the same relation occurs between corresponding components in the
electrical system.
Model
section with selected pipe (P-1) is shown with relevant status bar information.
Model
section with selected pipe (P-1) is shown with open dialog (cutoff):
Model section
with selected gate valve (GV) is shown with open dialog (cutoff):
Model section
with selected check valve (CV) is shown with open dialog (cutoff):
Model section
with selected hydrant (FH) is shown with open dialog (cutoff):
Model section
with selected pipe (P-2) is shown with open dialog (cutoff):
Model section
with selected pipe (P-3) is shown with open dialog (cutoff):
