CP Design – How Many Sacrificial Anodes?

Designing a suitable sacrificial CP system plays a major role in how well the system will perform and for how long. There are many factors to consider during the design, ranging from which Standards to comply with, system design life, environmental conditions, installation considerations and constraints etc.

The Question
How do we know the system will operate correctly?

The Challenge
The CP design is based on specific criteria, which must be met during the design phase. However, the design cannot be proven to be correct until after the installation is complete.

The Fix
As part of the post-installation or commissioning phase a comprehensive survey should be carried out, which will confirm that the system is either providing or is still working towards providing an acceptable level of cathodic protection to the structure.

 

Subsea Corrosion engineers have the qualifications and experience to conduct these procedures and confirm that the system is operating satisfactorily during the construction phase, commissioning or later in the design life.