Ambient temperature rating factor (Ca)
Revit Guides
Data Management
Ambient temperature rating factor used for calculating theminimum required cable size. For cables installed in air, values for this factor are given in BS7671:2018 Table4B1.For ground installations, values are given in Table4B2. Elevating the ambient temperature will result in a lower rating factor Ca.This may result in an increased cable size.
2022-07-24
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