Comment on "1-dimensional model for nonlinear stress control in cable terminations" [with reply]

For the original paper see ibid., vol. 4, no. 6, p.785-91 (1997). In the aforementioned paper by Rhyner and Bou-Diab, a problem of considerable engineering interest concerning the evaluation of the voltage profile in a cable termination equipped with stress grading materials has been discussed. In the paper, the potential distribution inside the termination is evaluated both for linear and nonlinear materials by adopting the well-known RC transmission line model. Although both the problem and the model adopted are not new, the authors introduce and discuss two novel aspects, of theoretical and practical interest for the electrical engineer involved in the design of cable terminations. In this Comment on the paper, Tucci aims to show that there are some weak points in the general theoretical model adopted and some of the approximations used in the analysis of particular cases. In reply, the authors answer the criticism and comments raised by Tucci.