EN 12495:2000
(Main)Cathodic protection for fixed steel offshore structures
- BACK
- 18-Jan-2000
- 47.020.01
- 77.060
- CEN/TC 219
Cathodic protection for fixed steel offshore structures
This european standard defines the means to be used to cathodically protect the submerged areas of fixed steel offshore structures and appurtenances.
Kathodischer Korrosionsschutz von ortsfesten Offshore-Anlagen aus Stahl
Die vorliegende Europäische Norm legt die Mittel fest, die zu verwenden sind, um die eingetauchten Flächen von orstfesten Offshore-Anlagen aus Stahl und deren Hilfsanlagen kathodisch zu schützen.
Protection cathodique des structures en acier fixes en mer
La présente norme européenne définit les moyens à mettre en oeuvre pour assurer la protection cathodique des parties submergées des structures offshore fixes en acier et de leurs parties annexes.
Katodna zaščita jeklenih konstrukcij, postavljenih v morju ali ob morju
General Information
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kathodischer Korrosionsschutz von ortsfesten Offshore-Anlagen aus StahlProtection cathodique des structures en acier fixes en merCathodic protection for fixed steel offshore 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 12495:2000SIST EN 12495:2000en01-december-2000SIST EN 12495:2000SLOVENSKI
STANDARD
SIST EN 12495:2000
SIST EN 12495:2000
SIST EN 12495
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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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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 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.
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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.
- Standard40 pagesEnglish languagesale 10% offe-Library read for×1 day
- 11-Feb-2014
- 30-Aug-2014
- 23.040.99
- 47.020.01
- 77.060
- CEN/TC 219
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
- 16-Oct-2012
- 29-Apr-2013
- 47.020.01
- 77.060
- CEN/TC 219
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.
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1.1 Scope of EN 12309 series
Appliances covered by this document include one or a combination of the following:
- gas-fired sorption chiller;
- gas-fired sorption chiller/heater;
- gas-fired sorption heat pump;
- hybrids based on gas sorption appliances.
This document applies to appliances designed to be used for space heating or cooling or refrigeration with or without heat recovery.
This document applies to appliances having flue gas systems of Type B and Type C (according to EN 1749:2020) and to appliances designed for outdoor installations, including Type A.
EN 12309 does not apply to air conditioners, it only applies to appliances having:
- integral burners under the control of fully automatic burner control systems;
- closed system refrigerant circuits in which the refrigerant does not come into direct contact with the water or air to be cooled or heated;
- mechanical means to assist transportation of the combustion air and/or the flue gas.
The above appliances can have one or more primary or secondary functions (i.e. heat recovery - see definitions in EN 12309-1:2023).
In the case of packaged units (consisting of several parts), this document applies only to those designed and supplied as a complete package.
The appliances having their condenser cooled by air and by the evaporation of external additional water are not covered by EN 12309.
Installations used for heating and/or cooling of industrial processes are not within the scope of EN 12309. All the symbols given in this text are to be used regardless of the language used.
1.2 Scope of this Part 3 of EN 12309
This part of EN 12309 specifies the requirements, test methods and conditions for gas-fired sorption appliances for heating and/or cooling with a net heat input not exceeding 70 kW.
This part of EN 12309 deals particularly with test protocols and tools to calculate the capacity, the gas utilization efficiency and the electrical power input of the appliance. This data can be used in particular to calculate the seasonal efficiency of the appliance.
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