Wires differ from pipelines as they lack a physical model. The drawn wires in Revit are only for visualization and cannot provide an accurate length measurement. So, how can you calculate wire length in Revit?
Here is a step-by-step method:
1. Use the conduit command to draw conduit models that mirror the actual path of the wires. This approach replaces the wires with conduits for measurement purposes.
2. After drawing the conduits, you may notice that the number of wires inside each conduit varies. Since the conduit length alone does not meet all requirements, you can add a parameter to account for the varying wire counts within each conduit.
3. Go to the Manage tab and select the Shared Parameters command. Create a new parameter called Number of wires.
4. Still under the Manage tab, open the Project Parameters command. In the dialog box, select the newly created Number of wires parameter, check the box under the Conduit category, and set it as an Instance Parameter.
5. Now, the conduit’s instance properties will include the Number of wires field. Enter the actual number of wires for each conduit based on your project data.
6. Create a detailed conduit schedule and add the relevant fields.
7. Use the Calculated Value command to create a new parameter named Wire length. Set the formula to Length × Number of wires to calculate the total wire length.
Note: This method allows you to see wire length statistics in the schedule. However, the calculated wire length may still differ from the actual length since conduit fittings are not included in the calculation. To compensate, increase the final value by an appropriate factor.
Related Skills:
Using conduit to calculate conduit length in Revit software
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