• Blog posts


    By Miles Nicholson

    The Wire Trunking Size Calculator is now available for download from Cadline Community.

    The file is a standalone calculator that is used externally to AutoCAD Electrical. By entering the quantity and size of wires passing through a duct/trunk, the user is able to calculate whether the selected trunking / ducting is suitably sized in accordance with fill factor standards such as IEC or NFPA. The calculator also factors into the equation twisting of the wires and how this affects the overall size required.