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Protection of steel members of headworks from corrosion

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Hydrotechnical Construction Aims and scope

Conclusions

  1. 1.

    Corrosion of the inside surfaces of pressure conduits leads to substantial head losses and to wear of these structures. During design and operation of these expensive objects, it is necessary to take measures to protect them from corrosion.

  2. 2.

    The inside surface of pressure conduits and surge towers can be successfully protected by means of cathodic protection. The following protective current densities are recommended: 2.75–3.5 mA/dm2 for the power conduits and 2.25–3.0 to 3.25–4.0 mA/dm2 for surge towers.

  3. 3.

    Tests of cathodic protection on actual objects of headworks show the possibility of its periodic connection.

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Literature cited

  1. Yu. R. Yusufov, “V. I. Lenin Mingechaur hydroelectric station cascade in the Azerbaidzhan SSR,” Gidrotekh. Stroit, No. 6 (1970).

  2. A. A. Spirin and Yu. Z. Shikhaliev, “Electrochemical protection of the underwater structures of the V. I. Lenin Mingechaur hydroelectric station from corrosion,” Gidrotekh. Stroit., No. 7 (1972).

  3. V. V. Romanov, Methods of Studying Corrosion of Metals [in Russian], Metallurgiya, Moscow (1965).

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Authors
  1. Yu. Z. Shikhaliev
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  2. L. N. Poletaev
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Additional information

Translated from Gidrotekhnicheskoe Stroitel'stvo, No.5, pp. 39–41, May, 1992.

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Shikhaliev, Y.Z., Poletaev, L.N. Protection of steel members of headworks from corrosion. Hydrotechnical Construction 26, 320–322 (1992). https://doi.org/10.1007/BF01545048

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  • DOI: https://doi.org/10.1007/BF01545048

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