Discussion on “specification for insulator testing — Covering inspection and tests of high-tension line insulators of porcelain, for over 25,000 volts” (engineering data sub-committee), Detroit, Mich., June 25, 1914. (see proceedings

Percy H. Thomas: Last year, the High-Tension Transmission Committee presented a “sample” or “model” or “skeleton” specification, as it might be called, for the testing and inspection of high-tension porcelain insulators. This has been quite extensively remodeled during the present year, without greatly changing the fundamental ideas of the specifications. Presumably this discussion will be the last chance for any effective criticism. I wish to open the subject by giving a few words of explanation in answer to a number of the suggestions which have been made.