FIELD: electric engineering, in particular, cathode protection systems for trunk pipes. SUBSTANCE: device has rubber-based binder and adjunct with magnetic characteristics which is made from metal oxides and carbon or its combination with technical carbon. Content of each type is in range of 20-80 %. Ratio of components is following: 46- 48 % of rubber-based binder, 32-54 of adjunct with magnetic characteristics. EFFECT: increased reliability possibility to use them in soil with high electric resistance. 2 cl, 1 dwg, 5 tbl
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Authors
Dates
1997-07-10—Published
1995-11-22—Filed