Northern Inspection Services (NIS) offers Cathodic Protection (CP) services to protect, maintain and extend the life of assets in the chemical, public utilities, oil and gas industries. Starting with design and engineering, our CP services are implemented by experienced and certified engineers, technicians and inspectors able to provide CP surveys, project and construction management.
Cathodic protection (CP) is a technique to reduce the corrosion rate of a metal surface by making it the cathode of an electrochemical cell.
In more general terms, CP is a method of controlling corrosion on buried and/ or submerged structures by applying direct current to the structure. Many factors need to be considered when designing a cathodic protection system; soil conditions, pipeline properties such as size, coating, length, current requirements and right-of-way are a few of those conditions.