Cathodic protection for long distance pipeline

According to the requirements of the Special Equipment Safety Act, special equipment from design and production to installation and operation should be tested and tested, and complete records should be kept. These records are important for quality traceability of special equipment. For long distance pipeline, these quality traceability documents, test samples, samples and so on, in addition to the above functions, have more far-reaching significance for pipeline safety. In general, long distance pipelines face similar risks. However, influenced by the characteristics of multi-line length and no wall management, each pipe section is faced with its own internal and external corrosion and internal and external stress small environment, which objectively requires that targeted pipeline inspection and evaluation must be carried out during the operation period. The assumptions and risk control measures of the operation conditions in the pipeline design stage and all kinds of testing and detection data in the manufacturing and construction stage have important reference significance for the integrity management in the later stage. So pipeline data lifecycle management is to realize pipeline risk control and pipeline protection