Autodesk 235B1-05A761-1301 - AutoCAD MEP 2010, User Manual, Page: 447 / 878

Modifying Electrical Systems
You can modify all aspects of your electrical system designs.
Modifying Circuits
As you change and refine the electrical system design, you might need to adjust the organization of the
circuits. Use the Circuit Manager to view how circuits are organized, move circuits between panels, delete
circuits that are no longer being used, and resize wires in a circuit. You can also edit some circuit properties,
but you cannot edit others, such as the circuit length, without making changes to the actual electrical design.
The Circuit Manager is the only place where you can access circuit objects to make changes. Because circuits
are non-graphical elements, nothing changes visually in your drawing when you make circuit changes.
However, by
accessing circuit information about an electrical component or generating a circuit report about
a selection of components, you can see the effects of the changes you have made.
NOTE If you are using an electrical project database, you cannot edit circuits from any linked drawing. To modify
circuits, open the electrical project database file and modify them using the Circuit Manager. Save and close the
electrical project database file before continuing work on any linked drawings. If circuit modifications affect any
linked drawings, you are prompted to open and save them in order to update them with the most current electrical
project database information.
Moving Circuits to Manage Demand Load
When you view circuits in the Circuit Manager and see that the load is too high on a panel, move one or
more of its circuits to a different panel. All of the information about the circuit and its device connections
moves with the circuit to the new panel.
Unless you have used wire to represent the circuit, you can make this move without physically changing
anything in your drawing. If you are using an electrical project database, you are prompted to open and
save any linked drawings that are affected by the modifications.
To move circuits between panels
1 In the Electrical workspace , select a panel and click Panel tab
➤
Circuits panel
➤
Circuit Manager
.
2 In the Circuit Manager, in the expanded panel tree view in the left pane, click the circuit to be
moved and drag it onto a different panel.
You can now see the voltage and load information change in the Circuit Manager.
NOTE Anytime you modify circuits, you will need to update any existing panel schedules. See Updating
Panel Schedules on page 459
Modifying Circuit Properties
Use the Circuit Manager to change the property information of circuits. You can edit some circuit properties
only if there are no devices connected to the circuit.
After you assign one or more devices to a circuit, you can edit only a few of the circuit properties.
Depending on the system type, you can modify the following circuit properties:
■ Name
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