One of the important constructive elements of energetic schemes is the caps of cabel contact connections as well as the transitional plates. In a process of operation, the cases of contact of materials of various type are widely spread. For example, the aluminum caps, as a rule, are attached to the copper bars, etc. The contact between copper wire of transformators and aluminum cable cap of the power supply system is a typical one. Under the influence of atmosphere moisture and electric current in such contact couple there takes place an active electrochemical oxidized process. It results in the growth of contact resistance, its destruction and breaking of the circuit. The electrolytes, i.e., the liquids which are able to conduct the electric current are water solutions of axcides, alkalides and salts. Any type of nature (sea, river, rain, atmosphere) water and moreover, technical one contains soluble salts, so, it is an electrolyte. In order to prevent this, it is necessary to exclude the presence of materials of various type in the contact connections.
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