This paper is intended to relate the results of comparative “in service” tests of several materials applied to galvanized steel substation structures during a period of several years. Particular emphasis will be placed on contrasting the actual results obtained with various materials and not on why the materials acted as they did under like conditions of exposure.
Briefly, the case histories which have been selected as examples and experience gained from still others not herein described show the following:
The subject of corrosion protection of galvanized steel substation structures and transmission line towers is one upon which opinions vary greatly, particularly with respect to why and when the protection should be afforded. The probable reason for this is that opinions also vary with respect to the evaluation of the galvanizing itself. We do not hold to the belief that galvanizing as a planned additional expense should, by itself, be expected...
