Installation position of insulated joint

1. Branch pipeline connection;


2. Between different electrolytes;


3. Pipeline import and export of battlefield;


4. Between the pipeline for cathodic protection and the protected facilities;


5. Between pipe sections with different anticorrosive coatings;


6. Pipe section affected by AC / DC interference;


7. When installing the test device, at least two cables should be connected with the protected pipeline, and the cables used should be distinguished by color or other signs, and the whole line should be unified;


8. At present, the cathodic protection of the outer wall of oil tank bottom plate has attracted great attention, which has an indispensable impact on the construction and transportation of oil pipelines.