Optimization of application Impressed Current Cathodic Protection design on the jetty steel structure to corrosion control

Abstract

This paper discusses the case study of the impressed current cathodic protection (ICCP) system for jetty of barge loading conveyor (BLC). This impressed current cathodic protection system is corrosion mitigation using an inert anode and an electrical device: rectifier, voltmeter, DC source on the BLC structure, and jetty pile to provide accelerated corrosion protection to parts of the pipe submerged in seawater. In this study, a mapping of the service distribution of inert anode carried out so that it can protect the BLC structure and the pile. The results of the measurement of the structure potential and impressed current cathodic protection (ICCP) at BLC jetty considered to meet the protection criteria according to ISO 15589-2: 2012 standards. The obtained measurement results are in the range between -842 mV to -1197 mV (Ag/AgCl). The results of inspections and measurement of the output of the transformer rectifier show the total output current is safe.

Comparative study on mechanism of DC and AC current on corrosion of copper–aluminium composites

“…Therefore, it is difficult for copper–aluminium composites, as commonly used materials for power transmission and transformation, to avoid being corroded in practical applications. 10,11 There is a certain application value to understanding the similarities and differences between the influence mechanisms of AC and DC current on the corrosion behaviour of these composites, and formulating targeted anti-corrosion measures according to the actual service conditions of the materials.…”