D.1 REFERENCE FOR OVERHEAD CONSTRUCTIONS
The following paper by Prof. Hermann Dommel compares computer methods for calculating line constants to the traditional hand methods. The computer method using Carson's formula mentioned in the paper is the method used by the ASPEN Line Database.
H. Dommel, "Overhead Line Parameters From Handbook Formulas and Computer Programs," IEEE Transactions on Power Apparatus and Systems, Vol. PAS-104, No. 2, February 1985.
D.2 REFERENCE FOR CABLE CIRCUITS
The cable-constants feature in the ASPEN Line Database is based on the following paper by Prof. A. Ametani.
A. Ametani, "A General Formulation of Impedance and Admittance of Cables," IEEE Transactions on Power Apparatus and Systems, Vol. PAS-99, No. 3, May/June 1980.