Removal of underground earthing facilitates increased corrosion protection to pipelines

Candice Blackney, Select Solutions

The pipeline industry is very collaborative in terms of cathodic protection, as everyone’s protection systems can affect each other’s assets detrimentally and end up inadvertently causing corrosion. Therefore, when a water authority wanted to increase the current output of their protection system, there was an increased risk of interfering with other asset owners in the area, so they contacted the gas authority for that area. There had already been issues with interference with the original commissioning of this system on the gas main and hence a bond (connector) exists from being previously installed to make the water and the gas mains electrically continuous to mitigate this previous interference.


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