Using an impressed current cathodic protection system to...

C - Chemistry – Metallurgy – 23 – F

Patent

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Details

C23F 13/00 (2006.01) C23F 13/04 (2006.01)

Patent

CA 2650070

A method is disclosed for using an impressed current cathodic protection (ICCP) system that supplies an electrical current such that a metallic structure (10) has a negative voltage of between 0.5 and 1.5 Volt relative to earth to power one or more electrical appliances (5), the method comprising: - providing one or more electrical appliances (5) which each have a pair of electrical contacts(1,2); - connecting one electrical contact (1) of each electrical appliance to the structure; and - connecting the other electrical contact (2) of each electrical appliance to earth, thereby providing electrical power to each of the electrical appliances. It is preferred that the electrical appliances (5) are equipped with one or more DC-DC power converters (6) which are configured to enhance an electrical input voltage of between 0.5 and 1.5 Volt to an electrical output voltage of between 3 and 5 Volt.

L'invention concerne un procédé permettant d'utiliser un système de protection cathodique par courant imposé (ICCP) qui fournit un courant électrique de façon qu'une structure métallique (10) présente une tension négative comprise entre 0,5 et 1,5 Volts par rapport à la terre pour alimenter un ou plusieurs appareils électriques (5). Le procédé de l'invention consiste : à utiliser un ou plusieurs appareils électriques (5) possédant chacun une paire de contacts électriques (1, 2); à connecter un contact électrique (1) de chaque appareil électrique à la structure; et à connecter l'autre contact électrique (2) de chaque appareil électrique à la terre, ce qui permet de fournir un courant électrique à chaque appareil électrique. De préférence, les appareils électriques (5) sont équipés d'un ou de plusieurs convertisseurs CC-CC (6) qui sont conçus pour augmenter une tension électrique d'entrée comprise entre 0,5 et 1,5 Volts en tension électrique de sortie comprise entre 3 et 5 Volts.

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