{"id":1143,"date":"2023-04-25T15:24:30","date_gmt":"2023-04-25T13:24:30","guid":{"rendered":"https:\/\/martin-gmbh.de\/kathodischer-korrosionsschutz-en\/"},"modified":"2025-06-02T10:12:11","modified_gmt":"2025-06-02T08:12:11","slug":"cathodic-protection","status":"publish","type":"page","link":"https:\/\/martin-gmbh.de\/en\/cathodic-protection\/","title":{"rendered":"Cathodic protection"},"content":{"rendered":"<div id=\"cs-content\" class=\"cs-content\"><div class=\"x-section e1143-e1-v0 mvr-0 mvr-1\" style=\"--tco-dcvr-0:url(https:\/\/martin-gmbh.de\/wp-content\/uploads\/Martin-GmbH-12.jpg);--tco-dcvr-1:58%;\"><div class=\"x-bg\" aria-hidden=\"true\"><div class=\"x-bg-layer-lower-image\" data-x-element-bg-layer=\"{&quot;parallaxSize&quot;:&quot;150%&quot;,&quot;parallaxDir&quot;:&quot;v&quot;,&quot;parallaxRev&quot;:false}\"><\/div><\/div><div class=\"x-row x-container max width e1143-e1-v1 mvr-f mvr-g mvr-h mvr-k mvr-l\"><div class=\"x-row-inner\"><div class=\"x-col e1143-e1-v2 mvr-p mvr-q mvr-r mvr-s\"><div class=\"x-text x-text-headline e1143-e1-v3 mvr-u mvr-v\"><div class=\"x-text-content\"><div class=\"x-text-content-text\"><h1 class=\"x-text-content-text-primary\">Cathodic protection<\/h1>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><div class=\"x-section e1143-e2 mvr-0 mvr-2 mvr-3\"><div class=\"x-row x-container max width e1143-e3 mvr-f mvr-g mvr-h mvr-k mvr-m\"><div class=\"x-row-inner\"><div class=\"x-col e1143-e4 mvr-r mvr-s\"><div style=\"--tco-dcvr-2:rgb(50, 50, 50);--tco-dcvr-5:rgb(50, 50, 50);\" class=\"x-text x-content e1143-e5-v0 mvr-11 mvr-12 mvr-5\"><p>Every year, considerable economic values are lost due to corrosion in steel pipelines, tanks\/vessels and district heating pipelines, among others. In addition to safety and environmental aspects, cathodic protection (CP) offers the optimum protective measure for structures in addition to passive protection (e.g. coatings).<\/p>\n<p>The principle of cathodic protection is based on reversing the corrosion process, thereby reducing the corrosion rate to a technically negligible level.<\/p><\/div><\/div><div class=\"x-col e1143-e6 mvr-r mvr-s\"><span class=\"x-image e1143-e7 mvr-18\"><img decoding=\"async\" src=\"https:\/\/martin-gmbh.de\/wp-content\/uploads\/MARTING-GmbH-KKS-Skizze.png\" width=\"950\" height=\"510\" alt=\"Image\" loading=\"lazy\"><\/span><\/div><\/div><\/div><\/div><div class=\"x-section e1143-e8 mvr-0 mvr-3 mvr-4\"><div class=\"x-row x-container max width e1143-e9 mvr-f mvr-h mvr-i mvr-k mvr-n\"><div class=\"x-row-inner\"><div class=\"x-col e1143-e10 mvr-r mvr-s\"><div style=\"--tco-dcvr-6:rgb(50, 50, 50);--tco-dcvr-9:rgb(50, 50, 50);\" class=\"x-text x-content e1143-e11-v0 mvr-12 mvr-13 mvr-6\">There are several procedures:<\/div><\/div><\/div><\/div><div class=\"x-row x-container max width e1143-e12 mvr-f mvr-g mvr-j mvr-o\"><div class=\"x-row-inner\"><div class=\"x-col e1143-e13 mvr-p mvr-r mvr-t\"><div style=\"--tco-dcvr-a:#000;--tco-dcvr-d:#000;\" class=\"x-text x-text-headline e1143-e14-v0 mvr-v mvr-w mvr-x mvr-7\"><div class=\"x-text-content\"><div class=\"x-text-content-text\"><h3 class=\"x-text-content-text-primary\"><p style=\"text-align: center;\">CP due to external current<\/p><\/h3>\n<\/div><\/div><\/div><hr class=\"x-line e1143-e15 mvr-19\"\/><div style=\"--tco-dcvr-e:rgb(50, 50, 50);--tco-dcvr-h:rgb(50, 50, 50);\" class=\"x-text x-content e1143-e16-v0 mvr-12 mvr-14 mvr-8\">External current protection structures essentially consists of a transformer rectifier unit and an anode structure. The transformer rectifier unit provides the required cathodic protection current, which enters the cathode from the anode system through the ground into the coating holidays.<\/div><\/div><div class=\"x-col e1143-e17 mvr-p mvr-r mvr-t\"><div style=\"--tco-dcvr-i:#000;--tco-dcvr-l:#000;\" class=\"x-text x-text-headline e1143-e18-v0 mvr-v mvr-x mvr-y mvr-9\"><div class=\"x-text-content\"><div class=\"x-text-content-text\"><h3 class=\"x-text-content-text-primary\"><p style=\"text-align: center;\">CP through galvanic anodes<\/p><\/h3>\n<\/div><\/div><\/div><hr class=\"x-line e1143-e19 mvr-19\"\/><div style=\"--tco-dcvr-m:rgb(50, 50, 50);--tco-dcvr-p:rgb(50, 50, 50);\" class=\"x-text x-content e1143-e20-v0 mvr-12 mvr-15 mvr-a\">These are particularly suitable for well-sheathed, short pipelines and tank farms with lower protective current requirements.<\/div><\/div><div class=\"x-col e1143-e21 mvr-p mvr-r mvr-t\"><div style=\"--tco-dcvr-q:#000;--tco-dcvr-t:#000;\" class=\"x-text x-text-headline e1143-e22-v0 mvr-v mvr-x mvr-z mvr-b\"><div class=\"x-text-content\"><div class=\"x-text-content-text\"><h3 class=\"x-text-content-text-primary\"><p style=\"text-align: center;\">CP of complex structures (LKS)<\/p><\/h3>\n<\/div><\/div><\/div><hr class=\"x-line e1143-e23 mvr-19\"\/><div style=\"--tco-dcvr-u:rgb(50, 50, 50);--tco-dcvr-x:rgb(50, 50, 50);\" class=\"x-text x-content e1143-e24-v0 mvr-12 mvr-16 mvr-c\">For objects that cannot be separated from the existing earthing system for technical reasons, local cathodic corrosion protection (LKS) can be installed.<\/div><\/div><div class=\"x-col e1143-e25 mvr-p mvr-r mvr-t\"><div style=\"--tco-dcvr-y:#000;--tco-dcvr-11:#000;\" class=\"x-text x-text-headline e1143-e26-v0 mvr-v mvr-x mvr-10 mvr-d\"><div class=\"x-text-content\"><div class=\"x-text-content-text\"><h3 class=\"x-text-content-text-primary\"><p style=\"text-align: center;\">Cathodic Internal Protection (KIS)<\/p><\/h3>\n<\/div><\/div><\/div><hr class=\"x-line e1143-e27 mvr-19\"\/><div style=\"--tco-dcvr-12:rgb(50, 50, 50);--tco-dcvr-15:rgb(50, 50, 50);\" class=\"x-text x-content e1143-e28-v0 mvr-12 mvr-17 mvr-e\">For the protection of tank containers and pipelines with conductive medium, the installation of a KIS is required.<\/div><\/div><\/div><\/div><\/div><\/div>","protected":false},"excerpt":{"rendered":"<p>Cathodic protection Every year, considerable economic values are lost due to corrosion in steel pipelines, tanks\/vessels and district heating pipelines, among others. In addition to safety and environmental aspects, cathodic protection (CP) offers the optimum protective measure for structures in addition to passive protection (e.g. coatings). The principle of cathodic protection is based on reversing the corrosion process, thereby reducing &#8230;<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"template-blank-4.php","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"class_list":["post-1143","page","type-page","status-publish","hentry","no-post-thumbnail"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Cathodic protection - MARTIN GmbH<\/title>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cathodic protection - MARTIN GmbH\" \/>\n<meta property=\"og:description\" content=\"Cathodic protection Every year, considerable economic values are lost due to corrosion in steel pipelines, tanks\/vessels and district heating pipelines, among others. In addition to safety and environmental aspects, cathodic protection (CP) offers the optimum protective measure for structures in addition to passive protection (e.g. coatings). 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