Problems resulting from corrosion in the telephone outside plant are many and varied. In this article an attempt will be made to give a broad overall picture of these problems and the manner in which they are met and solved by the telephone plant engineer. Generally speaking, all hardware and outside plant material used by the telephone industry is engineered for long time service. In many cases useful life of these materials extends well over the engineered expectancy. But in some exceptional environments in which these perdictions are not fulfilled costly replacements are necessitated.
Selection of proper construction materials usually is governed by a number of factors, of which adequate corrosion resistance at reasonable cost is of considerable importance. A fair criterion of satisfactory corrosion resistance usually is obtained from past experience with similar types of equipment in comparable environments. Generous use is made of experience of others with similar...