Discussion on “tests and investigations on extra high-tension insulators”

W. A. Hillebrand: I will confine my discussion principally to the paper by Messrs. Farr and Philpott. The energy and care with which they prosecuted this research is highly commendable, and the results are extremely interesting. On the other hand it is characteristic of a great deal of such work that an attempt is made to draw general conclusions from incomplete data. For example, the insulators on which they made their tests were evidently of very poor material.