{"id":2092,"date":"2023-05-17T03:58:57","date_gmt":"2023-05-17T03:58:57","guid":{"rendered":"https:\/\/3.212.105.250\/?p=2092"},"modified":"2025-07-26T16:35:33","modified_gmt":"2025-07-26T22:35:33","slug":"4-katodisuojauksen-testausmenetelmat","status":"publish","type":"post","link":"https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2023\/05\/17\/4-katodisuojauksen-testausmenetelmat\/","title":{"rendered":"4 Katodisuojauksen testausmenetelm\u00e4t"},"content":{"rendered":"<p>Putkiston korroosio on s\u00e4hk\u00f6kemiallinen reaktio putkien metallin ja elektrolyyttisen materiaalin, yleens\u00e4 maaper\u00e4n, v\u00e4lill\u00e4. Katodinen suojaus on suunniteltu est\u00e4m\u00e4\u00e4n t\u00e4m\u00e4n reaktion tapahtuminen putkiston eheyden s\u00e4ilytt\u00e4miseksi.<\/p>\n<p>Katodisuojausj\u00e4rjestelm\u00e4t on kuitenkin tarkastettava s\u00e4\u00e4nn\u00f6llisesti k\u00e4ytt\u00e4en erilaisia testausmenetelmi\u00e4, jotta voidaan varmistaa, ett\u00e4 ne suojaavat putkistoja edelleen. Lis\u00e4tietoja yleisist\u00e4 <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2021\/05\/06\/erilaiset-maaperan-testausmenetelmat\/'>testausmenetelm\u00e4t<\/a> joita asiantuntijat k\u00e4ytt\u00e4v\u00e4t pit\u00e4m\u00e4\u00e4n putkiston puhtaana ja toimivana.<\/p>\n<h2>Tasasuuntaajan l\u00e4hd\u00f6t<\/h2>\n<p>ICCP-j\u00e4rjestelmiss\u00e4 k\u00e4ytet\u00e4\u00e4n tasasuuntaajia, jotka muuttavat vaihtovirran tasavirraksi korroosion est\u00e4miseksi. Kun\u00a0<a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/konsultointialueet\/korroosio\/katodisuojapotentiaalin-tutkimukset\/\" target=\"_blank\" rel=\"noopener\">katodisen suojauksen asiantuntija<\/a>\u00a0saapuu testaamaan j\u00e4rjestelm\u00e4\u00e4si, he k\u00e4ytt\u00e4v\u00e4t j\u00e4nnitemittaria mitatakseen n\u00e4iden tasasuuntaajien ulostulon. Jos ulostuloa on s\u00e4\u00e4dett\u00e4v\u00e4 optimoidakseen <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2024\/09\/30\/katodisuojauksen-kayttoonotto-tyomaallasi\/'>katodinen suojaus,<\/a> Asiantuntija voi tehd\u00e4 s\u00e4\u00e4t\u00f6j\u00e4 hienoilla tai karkeilla hanas\u00e4\u00e4d\u00f6ill\u00e4.<\/p>\n<h2>L\u00e4heisen v\u00e4liajan potentiaalitutkimus (CIPS)<\/h2>\n<p>Jos putkistossasi on osia, joita ei ole suojattu riitt\u00e4v\u00e4sti, CIPS-testausmenetelm\u00e4ll\u00e4 voidaan paikantaa n\u00e4m\u00e4 alueet. Testaaja asettaa vertailuelektrodit viiden jalan v\u00e4lein putkiston varrelle, ja samalla kunkin tasasuuntaajan l\u00e4ht\u00f6 synkronoidaan vaihtelemaan p\u00e4\u00e4lle- ja pois p\u00e4\u00e4lt\u00e4 -asetusten v\u00e4lill\u00e4. . <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2020\/08\/31\/korroosiotestien-suorittamisen-tarkeys\/'>testausasiantuntija mittaa putkien ja maaper\u00e4n v\u00e4list\u00e4 korroosiota<\/a> potentiaali kullakin aikav\u00e4lill\u00e4 k\u00e4ytt\u00e4en suurimpedanssista volttimittaria.<\/p>\n<h2>Galvaaninen anodivirta ulostulo<\/h2>\n<p>Saadakseen lukeman anodin tilasta katodisuojauksen testauksen asiantuntijat k\u00e4ytt\u00e4v\u00e4t seuraavia menetelmi\u00e4.\u00a0<a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2023\/02\/17\/5-erilaista-katodisuojauksen-testauslaitetta\/\" target=\"_blank\" rel=\"noopener\">j\u00e4nnitemittari<\/a>\u00a0anodin avoimen piirin potentiaalin mittaamiseksi. Kun anodi kuluu ajan mittaan, sen avoimen piirin potentiaali siirtyy positiiviseen suuntaan.<\/p>\n<h2>AC-h\u00e4iri\u00f6tutkimus<\/h2>\n<p>Sijaitseeko putkistosi l\u00e4hell\u00e4 korkeaj\u00e4nnitteist\u00e4 vaihtovirtajohtoa? Jos n\u00e4in on, putkiston CP-j\u00e4rjestelm\u00e4 on testattava s\u00e4\u00e4nn\u00f6llisesti sen varmistamiseksi, ettei vaihtovirta aiheuta korroosiota tai turvallisuusongelmia. Testausasiantuntijat k\u00e4ytt\u00e4v\u00e4t korkea-impedanssista j\u00e4nnitemittaria yhdess\u00e4 kuparisulfaattipuolikellon kanssa vertailukohtana; jos heid\u00e4n lukemansa osoittavat vaihtovirtah\u00e4iri\u00f6it\u00e4, he voivat suositella asianmukaisia h\u00e4iri\u00f6npoistolaitteita.<\/p>\n<p>Jotta putkiston katodisuojausj\u00e4rjestelm\u00e4 pysyisi parhaassa toimintakunnossa, se on testattava v\u00e4hint\u00e4\u00e4n kerran vuodessa. Jos putkistossasi on tasasuuntaajia, ne on testattava puolivuosittain katodisuojauksen asiantuntijoilla, jotka k\u00e4ytt\u00e4v\u00e4t asianmukaisia testausmenetelmi\u00e4. N\u00e4ist\u00e4 testeist\u00e4 saatava tieto voi auttaa sinua optimoimaan CP-j\u00e4rjestelm\u00e4si ja pit\u00e4m\u00e4\u00e4n putkistosi turvassa korroosiolta.<\/p>","protected":false},"excerpt":{"rendered":"<p>Corrosion on a pipeline is an electrochemical reaction between the metal of the pipes and an electrolytic material, usually soil. Cathodic protection is designed to prevent that reaction from occurring to maintain the integrity of the pipeline. However, cathodic protection systems must be checked regularly using a variety of testing methodologies to ensure they are [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":2078,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_mbp_gutenberg_autopost":false,"_pgmb_is_evergreen":true,"_pgmb_ap_template_id":0,"iawp_total_views":133,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-2092","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electrical"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.6.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"Corrosion on a pipeline is an electrochemical reaction between the metal of the pipes and an electrolytic material, usually soil. 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