SIST EN 13173:2003
(Main)Cathodic protection for steel offshore floating structures
Cathodic protection for steel offshore floating structures
This EN defines the means to be used to cathodically protect the submerged metallic surfaces of steel offshore floating structures and appurtenances in sea water and saline mud.
Kathodischer Korrosionsschutz für schwimmende Offshore-Anlagen aus Stahl
Diese Europäische Norm definiert die Mittel, die für den kathodischen Korrosionsschutz der eingetauchten metallischen Oberflächen von schwimmenden Offshore-Anlagen aus Stahl und Anlagenzubehör in Meerwasser und salzhaltigem Schlick einzusetzen sind.
Protection cathodique des structures en acier flottant en mer
La présente EN définit les moyens à mettre en oeuvre pour assurer la protection cathodique des parties métalliques submergées des structures en acier flottant en mer et de leurs parties annexes contre la corrosion due à l'eau de mer ou aux fonds marins.
Katodna zaščita za plavajoče jeklene priobalne konstrukcije
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kathodischer Korrosionsschutz für schwimmende Offshore-Anlagen aus StahlProtection cathodique des structures en acier flottant en merCathodic protection for steel offshore floating structures47.020.01Splošni standardi v zvezi z ladjedelništvom in konstrukcijami na morjuGeneral standards related to shipbuilding and marine structures25.220.40Kovinske prevlekeMetallic coatingsICS:Ta slovenski standard je istoveten z:EN 13173:2001SIST EN 13173:2003en01-december-2003SIST EN 13173:200
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1.1 General
This European Standard defines the general criteria and recommendations for cathodic protection of immersed external ship hulls and appurtenances.
This European Standard does not cover safety and environmental protection aspects associated with cathodic protection. Relevant national or international regulations and classification society requirements apply.
1.2 Structures
This European Standard covers the cathodic protection of the underwater hulls of ships, boats and other self propelled floating vessels generally used in seawater together with their appurtenances such as rudders, propellers, shafts and stabilisers.
It also covers the cathodic protection of thrusters, sea chests and water intakes (up to the first valve).
It does not cover the protection of internal surfaces such as ballast tanks.
It does not cover steel offshore floating structures which are covered in EN 13173.
1.3 Materials
This European Standard covers the cathodic protection of ship hulls fabricated principally from carbon manganese steels including appurtenances of other ferrous or non-ferrous alloys such as stainless steels and copper alloys, etc.
This European Standard applies to both coated and bare hulls; most hulls are coated.
The cathodic protection system should be designed to ensure that there is a complete control over any galvanic coupling.
This European Standard does not cover the cathodic protection of hulls principally made of other materials such as aluminium alloys, stainless steels or concrete.
1.4 Environment
This European Standard is applicable to the hull and appurtenances in seawater and all waters which could be found during a ship’s world-wide deployment.
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This European Standard covers the general principles of cathodic protection when applied in seawater, brackish waters and marine mud. It is intended to be an introduction, to provide a link between the theoretical aspects and the practical applications, and to constitute a support to the other European Standards devoted to cathodic protection of steel structures in seawater.
This European Standard specifies the criteria required for cathodic protection. It provides recommendations and information on reference electrodes, design considerations and prevention of the secondary effects of cathodic protection.
The practical applications of cathodic protection in seawater are covered by the following standards:
- EN 12495, Cathodic protection for fixed steel offshore structures;
- EN ISO 13174, Cathodic protection of harbour installations (ISO 13174);
- EN 12496, Galvanic anodes for cathodic protection in seawater and saline mud;
- EN 13173, Cathodic protection for steel offshore floating structures;
- EN 16222, Cathodic protection of ship hulls;
- EN 12474, Cathodic protection of submarine pipelines;
- ISO 15589 2, Petroleum, petrochemical and natural gas industries - Cathodic protection of pipeline transportation systems - Part 2: Offshore pipelines.
For cathodic protection of steel reinforced concrete whether exposed to seawater or to the atmosphere, EN ISO 12696 applies.
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ISO 13174:2012 defines the means to be used to ensure that cathodic protection is efficiently applied to the immersed and driven/buried metallic external surfaces of steel port, harbour, coastal and flood defence installations and appurtenances in seawater and saline mud to provide protection from corrosion.
ISO 13174:2012 specifies cathodic protection of fixed and floating port and harbour structures. This includes piers, jetties, dolphins (mooring and berthing), sheet or tubular piling, pontoons, buoys, floating docks, lock and sluice gates. It also specifies cathodic protection of the submerged areas of appurtenances, such as chains attached to the structure, when these are not electrically isolated from the structure.
ISO 13174:2012 is to be used in respect of cathodic protection systems where the anodes are exposed to water or saline mud. For buried areas, typically in soil or sand filled areas behind piled walls or within filled caissons, which may be significantly affected by corrosion, specific cathodic protection design and operation requirements are defined in EN 12954, the anodes being exposed to soils.
ISO 13174:2012 does not cover the cathodic protection of fixed or floating offshore structures (including offshore loading buoys), submarine pipelines or ships.
ISO 13174:2012 does not include the internal protection of surfaces of any components such as ballast tanks, internals of floating structures flooded compartments of lock and sluice gates or the internals of tubular steel piles.
ISO 13174:2012 covers the cathodic protection of structures fabricated principally from bare or coated carbon and carbon manganese steels.
As some parts of the structure may be made of metallic materials other than carbon steels, the cathodic protection system should be designed to ensure that there is a complete control over any galvanic coupling and minimize risks due to hydrogen embrittlement or hydrogen-induced cracking (see ISO 12473 ).
ISO 13174:2012 does not address steel reinforced concrete structures (see EN 12696).
ISO 13174:2012 is applicable to the whole submerged zone in seawater, brackish waters and saline mud and related buried areas which can normally be found in port, harbour, coastal and flood defence installations wherever these structures are fixed or floating.
For surfaces which are alternately immersed and exposed to the atmosphere, the cathodic protection is only effective when the immersion time is long enough for the steel to become polarized. Typically, effective cathodic protection is achieved for all surfaces below mid tide.
For structures such as sheet steel and tubular steel piles that are driven into the sea bed or those that are partially buried or covered in mud, ISO 13174:2012 is also applicable to the surfaces buried, driven and exposed to mud which are intended to receive cathodic protection along with surfaces immersed in water.
Cathodic protection may also be applied to the rear faces of sheet steel piled walls and the internal surfaces of filled caissons. Cathodic protection of such surfaces is specified by EN 12954.
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This european standard defines the means to be used to cathodically protect the submerged areas of fixed steel offshore structures and appurtenances.
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1.1 General
This European Standard defines the general criteria and recommendations for cathodic protection of immersed external ship hulls and appurtenances.
This European Standard does not cover safety and environmental protection aspects associated with cathodic protection. Relevant national or international regulations and classification society requirements apply.
1.2 Structures
This European Standard covers the cathodic protection of the underwater hulls of ships, boats and other self propelled floating vessels generally used in seawater together with their appurtenances such as rudders, propellers, shafts and stabilisers.
It also covers the cathodic protection of thrusters, sea chests and water intakes (up to the first valve).
It does not cover the protection of internal surfaces such as ballast tanks.
It does not cover steel offshore floating structures which are covered in EN 13173.
1.3 Materials
This European Standard covers the cathodic protection of ship hulls fabricated principally from carbon manganese steels including appurtenances of other ferrous or non-ferrous alloys such as stainless steels and copper alloys, etc.
This European Standard applies to both coated and bare hulls; most hulls are coated.
The cathodic protection system should be designed to ensure that there is a complete control over any galvanic coupling.
This European Standard does not cover the cathodic protection of hulls principally made of other materials such as aluminium alloys, stainless steels or concrete.
1.4 Environment
This European Standard is applicable to the hull and appurtenances in seawater and all waters which could be found during a ship’s world-wide deployment.
- Standard46 pagesEnglish languagesale 10% offe-Library read for×1 day
This European Standard covers the general principles of cathodic protection when applied in seawater, brackish waters and marine mud. It is intended to be an introduction, to provide a link between the theoretical aspects and the practical applications, and to constitute a support to the other European Standards devoted to cathodic protection of steel structures in seawater.
This European Standard specifies the criteria required for cathodic protection. It provides recommendations and information on reference electrodes, design considerations and prevention of the secondary effects of cathodic protection.
The practical applications of cathodic protection in seawater are covered by the following standards:
- EN 12495, Cathodic protection for fixed steel offshore structures;
- EN ISO 13174, Cathodic protection of harbour installations (ISO 13174);
- EN 12496, Galvanic anodes for cathodic protection in seawater and saline mud;
- EN 13173, Cathodic protection for steel offshore floating structures;
- EN 16222, Cathodic protection of ship hulls;
- EN 12474, Cathodic protection of submarine pipelines;
- ISO 15589 2, Petroleum, petrochemical and natural gas industries - Cathodic protection of pipeline transportation systems - Part 2: Offshore pipelines.
For cathodic protection of steel reinforced concrete whether exposed to seawater or to the atmosphere, EN ISO 12696 applies.
- Standard40 pagesEnglish languagesale 10% offe-Library read for×1 day
ISO 13174:2012 defines the means to be used to ensure that cathodic protection is efficiently applied to the immersed and driven/buried metallic external surfaces of steel port, harbour, coastal and flood defence installations and appurtenances in seawater and saline mud to provide protection from corrosion.
ISO 13174:2012 specifies cathodic protection of fixed and floating port and harbour structures. This includes piers, jetties, dolphins (mooring and berthing), sheet or tubular piling, pontoons, buoys, floating docks, lock and sluice gates. It also specifies cathodic protection of the submerged areas of appurtenances, such as chains attached to the structure, when these are not electrically isolated from the structure.
ISO 13174:2012 is to be used in respect of cathodic protection systems where the anodes are exposed to water or saline mud. For buried areas, typically in soil or sand filled areas behind piled walls or within filled caissons, which may be significantly affected by corrosion, specific cathodic protection design and operation requirements are defined in EN 12954, the anodes being exposed to soils.
ISO 13174:2012 does not cover the cathodic protection of fixed or floating offshore structures (including offshore loading buoys), submarine pipelines or ships.
ISO 13174:2012 does not include the internal protection of surfaces of any components such as ballast tanks, internals of floating structures flooded compartments of lock and sluice gates or the internals of tubular steel piles.
ISO 13174:2012 covers the cathodic protection of structures fabricated principally from bare or coated carbon and carbon manganese steels.
As some parts of the structure may be made of metallic materials other than carbon steels, the cathodic protection system should be designed to ensure that there is a complete control over any galvanic coupling and minimize risks due to hydrogen embrittlement or hydrogen-induced cracking (see ISO 12473 ).
ISO 13174:2012 does not address steel reinforced concrete structures (see EN 12696).
ISO 13174:2012 is applicable to the whole submerged zone in seawater, brackish waters and saline mud and related buried areas which can normally be found in port, harbour, coastal and flood defence installations wherever these structures are fixed or floating.
For surfaces which are alternately immersed and exposed to the atmosphere, the cathodic protection is only effective when the immersion time is long enough for the steel to become polarized. Typically, effective cathodic protection is achieved for all surfaces below mid tide.
For structures such as sheet steel and tubular steel piles that are driven into the sea bed or those that are partially buried or covered in mud, ISO 13174:2012 is also applicable to the surfaces buried, driven and exposed to mud which are intended to receive cathodic protection along with surfaces immersed in water.
Cathodic protection may also be applied to the rear faces of sheet steel piled walls and the internal surfaces of filled caissons. Cathodic protection of such surfaces is specified by EN 12954.
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This european standard defines the means to be used to cathodically protect the submerged areas of fixed steel offshore structures and appurtenances.
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This document specifies requirements for factory made thermally insulated bonded steel service valve assemblies for filling, draining, venting and operation purposes for directly buried hot and cold water networks in accordance with EN 13941-1, comprising a steel service valve, steel service pipe, polyurethane (PUR) foam thermal insulation and a casing of polyethylene (PE).
This document applies of steel service valve assemblies with an internal pressure of maximum 2,5 MPa.
The principles of this document can be applied to thermal insulated bonded steel service valve assemblies with internal pressures higher than 2,5 MPa, provided that special attention is paid to the effects of pressure.
The steel service valve assembly can also include the following additional elements: measuring wires, spacers, and diffusion barriers.
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This document specifies requirements and test methods for fitting and steel valve assemblies of factory made thermally insulated bonded twin pipe assemblies for hot water networks in accordance with EN 13941-1, comprising two steel service pipes, in most cases steel fittings and/or steel valves, steel components, polyurethane (PUR) foam thermal insulation and one casing of polyethylene.
NOTE Steel components can be e.g. fixing bars.
The twin pipe assembly can also include the following additional elements: measuring wires, spacers and diffusion barriers.
This document covers the following assemblies:
- fittings: bends, T-pieces and reducers;
- valves for main line.
This document applies to fitting assemblies with an internal pressure of at least 1,6 MPa and steel valve assemblies with a maximum internal pressure of 2,5 MPa.
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