BS EN 17243:2020
$198.66
Cathodic protection of internal surfaces of metallic tanks, structures, equipment, and piping containing seawater
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 58 |
This document specifies the requirements and recommendations for cathodic protection systems applied to the internal surfaces of metallic tanks, structures, equipment and piping containing natural or treated seawater or brackish waters to provide an efficient protection from corrosion.
Cathodic protection inside fresh water systems is excluded from this document. This is covered by EN 12499.
EN 12499 covers internal cathodic protection for any kind of waters, including general aspects for seawater but excluding industrial cooling water systems. This document specifically details applications in seawater and brackish waters.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 38 | Annex A (informative)Environmental checklist |
| 40 | Annex B (informative)Guidance on design values for internal cathodic protection for seawater containing equipment B.1 Typical design cathodic current densities B.1.1 Initial design current density |
| 41 | B.1.2 Maintenance design current density B.2 Coating breakdown factor of protective paint systems |
| 42 | Annex C (informative)Calculation of potential distribution inside a pipe or tube C.1 Potential distribution inside a pipe (ignoring anode resistance) C.2 Potential distribution inside a pipe (with anode resistance) |
| 43 | C.3 Potential distribution inside a tube |
| 44 | Annex D (informative)Design of galvanic anode systems D.1 Anode resistance formulae |
| 45 | D.2 Calculation of the anode resistance at the end of life D.2.1 General D.2.2 Calculation of end of life anode weight D.2.3 Calculation of end of life anode dimensions |
| 46 | D.3 Electrolyte resistivity |
| 48 | D.4 Galvanic anode current output |
| 49 | D.5 Anode life D.6 Minimum net weight requirement |
| 50 | Annex E (informative)Typical electrochemical characteristics of impressed current anodes |
| 51 | Annex F (informative)Design of impressed current systems F.1 Internal cathodic protection of tanks |
| 52 | F.2 Evaluation of the maximum length of a rod anode projecting into the water flow for mechanical integrity |
