External Cable Sizing

Cables can be sized using user-defined equations stored in an external Excel template, instead of those from the selected standard.

A template must then be added to the External Cable Sizing Catalogue in Electrical Engineer, from where AVEVA Electrical database fields are mapped to the appropriate cells.

Once this is done, the template can be allocated to the loads, supplies and incomers associated with the cables that are to be sized using its equations, also in Electrical Engineer. Cable sizing can then take place for the cables. This can be carried out either in Electrical Engineer, or in Electrical Wiring Manager, as explained below.

To size cables using an external template, initiate cable sizing in the normal way for either a single or multiple cables, i.e. select the associated cable or cables and click Size Selected Cable in the Calculations section of the List Tools - Cable Schedule tab.

Note:
Ensure that the equipment associated with the cable(s) in question have been allocated an external cable sizing template before doing so. If this has not been done, an error message is described when cable sizing is attempted.

Note:
The maximum number of cables that may be connected to an equipment item may (optionally) be specified on the More Information window accessed from the Equipment Layout window. If the sizing procedure attempts to connect a cable to an equipment item when the maximum number of cables has already been connected to that item, a message is displayed to inform the user of this.

If a single cable was selected the Cable Sizing window is displayed. If multiple cables were selected the Multiple Cable Sizing window is displayed. Refer to Calculate Single Cable Size and Calculate Multiple Cable Sizes for further information.

At the bottom of both windows is an External Cable Sizing checkbox. For example:

Check this checkbox.

Note:
If a cable is frozen or on a locked drum, it cannot be edited: the OK and Apply buttons in the Cable Sizing window will be disabled, and it will not be listed in the Multiple Cable Sizing window.