DNV-RP-B401 Cathodic protection design

Recommended practice

Edition 2021-05

This recommended practice (RP) has been prepared to facilitate the execution of conceptual and detailed cathodic protection (CP) design using aluminium or zinc based galvanic anodes, and specification of manufacture and installation of such anodes. 

Whilst the requirements and recommendations are general, this document contains advice on how amendments can be made to include project specific requirements. The RP can also easily be amended to include requirements or guidelines by a regulating authority, or to reflect owner’s general philosophy on corrosion control by CP.