Revit 2024 – Electrical Wire Temperature Correction Add Temperature to Begin

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When you start a Revit file you have the option to start from the electrical template. The UK library has some useful templates with many of the settings already filled in.

Autodesk, Micrographics, Revit 2024, Electrical, Wire Temperature Correction

To get to the electrical settings, navigate via the Manage tab.

Autodesk, Micrographics, Revit 2024, Electrical, Wire Temperature Correction

When you try to add a Correction Factor to a wire, you may find the capability disabled.

Autodesk, Micrographics, Revit 2024, Electrical, Wire Temperature Correction

This is true for any of the wire types.

Autodesk, Micrographics, Revit 2024, Electrical, Wire Temperature Correction

A clue presents itself when you try to select a temperature to add a correction factor for – it is empty.

Autodesk, Micrographics, Revit 2024, Electrical, Wire Temperature Correction

Go back one step then, to the Wire Sizes dialog. Note that you can add a temperature to the Material. I add a temperature of 80°C to the specific wire. To explain why a wire may have different temperature rating, consider that the insulation can be different, and that this may alter the operating temperature.

Autodesk, Micrographics, Revit 2024, Electrical, Wire Temperature Correction

To illustrate how the table works, I deleted the ampacity of 61A from the 80°C type. Notice the difference between 70°C and 80°C below, shown side-to-side.

Autodesk, Micrographics, Revit 2024, Electrical, Wire Temperature Correction

Now that an additional temperature has been added, you are able to add temperature correction factors to the wire.

Autodesk, Micrographics, Revit 2024, Electrical, Wire Temperature Correction

See below the complete table.

Autodesk, Micrographics, Revit 2024, Electrical, Wire Temperature Correction

Unfortunately, you will have to add temperature correction factors to each separate operating temperature independently. As you can see the table was not duplicated for 80°C. Note, after you do add some values for the different temperatures, you can always duplicate the material. This does copy the temperature tables to the new material.

Autodesk, Micrographics, Revit 2024, Electrical, Wire Temperature Correction

Lastly, note that after the new temperature is added, all the wire types expose their temperature correction tables (unlike before).

Autodesk, Micrographics, Revit 2024, Electrical, Wire Temperature Correction

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