After you create a cable drum, use this procedure to select a drum reference cable, and to define and edit other cable drum properties.
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In the Electrical Index, expand the folder hierarchy Wiring Equipment > Drums.
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Right-click the Drums folder, and on the shortcut menu select New Drum.
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Right-click the drum that you created, and on the shortcut menu select Common Properties.
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On the Cable Drum Common Properties dialog, under Drum Tag, edit the tag name as necessary.
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To set the required drum reference cable, beside Reference cable select
.
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On the Select Reference Cable dialog, select the required reference cable.
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In the Drum types per cable length group box select Select to open the Drum types per cable length dialog.
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Select an appropriate set of cable lengths and select OK.
The sets of cable lengths that are available on the Drum types per cable length dialog are taken from the Design Data tab of the reference cable that has been set for the current drum.
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Enter values for the other cable drum properties. For details, see Cable Drum Common Properties Dialog .
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You cannot change the drum reference cable when cables are assigned to the drum.
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You cannot delete a drum if a cable has been assigned to that drum.
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For calculation details, see Rules Governing Cable Drum Calculations.