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In recent years, with the advantages of long distance and large capacity, ultrahigh voltage direct current (UHVDC) transmission projects are developing increasingly in China. Also UHVDC transmission projects share corridors with underground oil & gas pipelines has become increasingly prominent. UHVDC ground electrode influences underground oil & gas pipeline is a new problem in China with...
The conservation of heritage wrought iron mostly relies on corrosion prevention by preparation of surfaces and application of protective coatings. In contrast to industrial and engineering treatment of modern steel, conservation practice is not regulated by accepted national and international standards or underpinned by empirical evidence. This paper presents the results of oxygen consumption rate...
The paper presents the results of design, manufacture and research of a microwave detector for detecting the pipe corrosion under an optically opaque coating and protective coating separation. The detector operates in the 5 mm wave band. A minimum diameter of the detected defect is 5-8 mm with an antenna horn aperture diameter of 60 mm. The antenna horn diameter may be changed. The device consists...
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