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51315-5593-Investigation of Factors Affecting Corrosion Inner Steel Pipe for Transmission Tower

Picture for Investigation of Factors Affecting Corrosion Inner Steel Pipe for Transmission Tower
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Product Number: 51315-5593-SG
ISBN: 5593 2015 CP
Author: Atsushi Naganuma
Publication Date: 2015
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$20.00
$20.00
Degradation of aged power transmission systems becomes a serious problem. As for transmission towers especially for steel pipe towers inner corrosion of steel pipe beams is one of the issues because it is difficult to assess inner corrosion of steel pipe from the external appearance. The prediction of relationship between the part of steel pipe and corrosion rate can contribute to the management and maintenance of steel pipe tower. Because these towers are exposed to atmospheric environment corrosive substances such as sea salt and moisture can be easily introduced into the steel pipe and make the non-uniform distribution of corrosion condition in the longitudinal direction. The behavior of such corrosive substances introducing into steel pipes is thought to depend on the meteorological condition. Furthermore corrosion condition of steel pipe is expected to depend on its arrangement such as horizontal or diagonal to the ground.In the previous work [1] we proposed the method for monitoring inner corrosion of steel pipe using several atmospheric corrosion sensors (ACM sensors) arranged in the steel pipe in the longitudinal direction. In this study using this method and meteorological observation the effects of wind direction and its speed on corrosion rate inside steel pipes which are set up at the coastal testing field were investigated. As results ACM sensors revealed that the longitudinal distribution of corrosion rate inside steel pipe depends on the horizontal or diagonal arrangement. It also appeared that wind direction and its speed affect corrosion rate inside steel pipes. This study showed that the corrosion behavior inside steel pipe can be predicted by the direction and speed of wind at the test field.Key words: transmission tower steel pipe atmospheric corrosion ACM sensor wind direction
Degradation of aged power transmission systems becomes a serious problem. As for transmission towers especially for steel pipe towers inner corrosion of steel pipe beams is one of the issues because it is difficult to assess inner corrosion of steel pipe from the external appearance. The prediction of relationship between the part of steel pipe and corrosion rate can contribute to the management and maintenance of steel pipe tower. Because these towers are exposed to atmospheric environment corrosive substances such as sea salt and moisture can be easily introduced into the steel pipe and make the non-uniform distribution of corrosion condition in the longitudinal direction. The behavior of such corrosive substances introducing into steel pipes is thought to depend on the meteorological condition. Furthermore corrosion condition of steel pipe is expected to depend on its arrangement such as horizontal or diagonal to the ground.In the previous work [1] we proposed the method for monitoring inner corrosion of steel pipe using several atmospheric corrosion sensors (ACM sensors) arranged in the steel pipe in the longitudinal direction. In this study using this method and meteorological observation the effects of wind direction and its speed on corrosion rate inside steel pipes which are set up at the coastal testing field were investigated. As results ACM sensors revealed that the longitudinal distribution of corrosion rate inside steel pipe depends on the horizontal or diagonal arrangement. It also appeared that wind direction and its speed affect corrosion rate inside steel pipes. This study showed that the corrosion behavior inside steel pipe can be predicted by the direction and speed of wind at the test field.Key words: transmission tower steel pipe atmospheric corrosion ACM sensor wind direction
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