Friction stud adjustment has been acclimated to retrofit sacrificial anodes to subsea pipelines while the activity is “live” (that is, it continues to carriage hydrocarbons at pressure). In some cases the anodes are placed on the sea bed abutting to the activity and a lug on a cable from the anode is affiliated to the stud anchored on the pipeline. Another advantage is a tripartite bond breadth the lug on the anode cable is fabricated of animate with a cone-shaped aperture in it. The cone-shaped end of the stud welds through the aperture assimilate the pipeline, adjustment to both the lug and the aqueduct and accouterment a absolutely anchored affiliation amid the anode cable and pipeline. The advantage of this adjustment is that there is no cogent access in the electrical attrition of the affiliation due to bane during the lifetime of the pipeline. Many subsea pipelines accept accurate weight blanket on them and a baby breadth of this can be removed with a baptize jet to admittance welding.
No comments:
Post a Comment