{"id":3990,"date":"2026-07-28T09:00:00","date_gmt":"2026-07-28T07:00:00","guid":{"rendered":"https:\/\/volthree.com\/?p=3990"},"modified":"2026-08-06T17:15:41","modified_gmt":"2026-08-06T15:15:41","slug":"armari-electric-per-a-industria-quimica-quan-es-obligatori-el-marcatge-atex","status":"publish","type":"post","link":"https:\/\/volthree.com\/ca\/armari-electric-per-a-industria-quimica-quan-es-obligatori-el-marcatge-atex\/","title":{"rendered":"Armari el\u00e8ctric per a ind\u00fastria qu\u00edmica: quan \u00e9s obligatori el marcatge ATEX"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\"><strong>El criteri que ho canvia tot: no \u00e9s neteja, \u00e9s corrosi\u00f3 qu\u00edmica directa<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">Un armari en una planta aliment\u00e0ria es degrada per cicles de rentat repetits amb aigua, calor i detergents. Un armari en ind\u00fastria qu\u00edmica pot estar exposat de forma cont\u00ednua a un agent corrosiu concret: un \u00e0cid, una base, un dissolvent, un vapor. La difer\u00e8ncia \u00e9s important perqu\u00e8 no tots els acers inoxidables es comporten igual davant de tots els agents qu\u00edmics, i especificar \u00abacer inoxidable\u00bb sense m\u00e9s, sense identificar l&#8217;agent present a la planta, \u00e9s una especificaci\u00f3 incompleta.  <\/p>\n\n<ul class=\"wp-block-list\">\n<li>AISI 304L: resisteix b\u00e9 la majoria d\u00e0cids dilu\u00efts i ambients industrials est\u00e0ndard. Enfront de clorurs concentrats o \u00e0cid clorh\u00eddric, podria desenvolupar corrosi\u00f3 per picada amb el temps. <\/li>\n\n\n\n<li>AISI 316L: incorpora molibd\u00e8, cosa que millora sensiblement la resist\u00e8ncia a clorurs i a un ventall m\u00e9s ampli d&#8217;agents qu\u00edmics. \u00c9s la refer\u00e8ncia quan hi ha exposici\u00f3 habitual a clorurs, salmorres o ambients costaners. <\/li>\n\n\n\n<li><strong>Aliatges superiors (d\u00faplex, superd\u00faplex, aliatges amb alt contingut en n\u00edquel)<\/strong> : necessaris quan l&#8217;agent qu\u00edmic present \u00e9s especialment agressiu (\u00e0cids concentrats, clor gas, determinats dissolvents). Aquesta decisi\u00f3 no s&#8217;ha de prendre per defecte, sin\u00f3 consultant la fitxa de seguretat (FDS) del producte qu\u00edmic present a la instal\u00b7laci\u00f3. <\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">Abans de demanar pressupost, la dada imprescindible no \u00e9s \u201c\u00e9s un entorn qu\u00edmic\u201d, sin\u00f3 el nom concret de l&#8217;agent i la concentraci\u00f3 habitual a la zona on va l&#8217;armari.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>Grau IP en ind\u00fastria qu\u00edmica: menys sobre pressi\u00f3, m\u00e9s sobre vapors i pols<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">A difer\u00e8ncia de la ind\u00fastria aliment\u00e0ria, on IP69K \u00e9s l&#8217;est\u00e0ndard per la neteja a pressi\u00f3, en ind\u00fastria qu\u00edmica el criteri predominant sol ser la protecci\u00f3 davant de vapors corrosius i pols, no necess\u00e0riament el rentat directe:<\/p>\n\n<figure class=\"wp-block-image size-large\"><img decoding=\"async\" src=\"https:\/\/volthree.com\/wp-content\/uploads\/2026\/07\/taula-ca-2-1024x490.png\" alt=\"\" class=\"wp-image-3974\"\/><\/figure>\n\n<p class=\"wp-block-paragraph\">El grau IK (EN 62208) tamb\u00e9 s&#8217;aplica aqu\u00ed amb el mateix criteri que a qualsevol planta industrial: IK08 com a m\u00ednim en zones amb tr\u00e0nsit de carretons o manipulaci\u00f3 de contenidors, pujant a IK09-IK10 si el risc d&#8217;impacte \u00e9s alt.<\/p>\n\n<h2 class=\"wp-block-heading\"><strong>Quan el marcatge ATEX \u00e9s obligatori, no opcional<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">Aquest \u00e9s el punt que diferencia m\u00e9s la ind\u00fastria qu\u00edmica de l&#8217;aliment\u00e0ria: el risc d&#8217;atmosfera explosiva per gasos o vapors inflamables \u00e9s molt m\u00e9s freq\u00fcent, no queda limitat a punts a\u00efllats com el maneig de farines o sucre. Si a la planta hi ha dissolvents inflamables, gasos combustibles o processos que generen vapors inflamables per sobre del seu punt d&#8217;inflamaci\u00f3, aquesta zona ha d&#8217;estar classificada segons un estudi d&#8217;\u00e0rees amb risc d&#8217;explosi\u00f3, i qualsevol armari instal\u00b7lat hi ha de complir la Directiva ATEX 2014\/34\/UE. <\/p>\n\n<p class=\"wp-block-paragraph\">El marcatge ATEX identifica:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Grup d&#8217;aparell<\/strong> : II, per a equips de superf\u00edcie (no mineria).<\/li>\n\n\n\n<li><strong>Categoria<\/strong> : 2 (alt grau de protecci\u00f3, per a zones on l&#8217;atmosfera explosiva \u00e9s probable en funcionament normal) o 3 (grau normal, per a zones on \u00e9s poc probable i de curta durada).<\/li>\n\n\n\n<li><strong>Tipus d&#8217;atmosfera<\/strong> : G (gasos), D (pols) o GD (tots dos).<\/li>\n\n\n\n<li><strong>Zona<\/strong> : 1 o 21 (probable en funcionament normal), 2 o 22 (poc probable i de curta durada).<\/li>\n<\/ul>\n\n<p class=\"wp-block-paragraph\">Aquesta dada no la determina el fabricant de l&#8217;armari: ix de l&#8217;estudi de classificaci\u00f3 de zones realitzat pel departament de seguretat industrial o el t\u00e8cnic de prevenci\u00f3 de la planta. El que s\u00ed que ha de garantir el fabricant \u00e9s que el model concret que se subministra t\u00e9 la certificaci\u00f3 ATEX corresponent a la zona indicada, no una certificaci\u00f3 gen\u00e8rica de \u201capte per a ambients industrials\u201d. <\/p>\n\n<h2 class=\"wp-block-heading\"><strong>Lerror m\u00e9s freq\u00fcent: aplicar el criteri duna zona a tota la planta<\/strong><\/h2>\n\n<p class=\"wp-block-paragraph\">En una planta qu\u00edmica \u00e9s habitual que convisquin zones amb classificaci\u00f3 ATEX (per exemple, juntament amb un reactor o un tanc de dissolvent) amb zones sense aquest risc (oficines t\u00e8cniques, sales de control allunyades del proc\u00e9s). Especificar tots els armaris de la instal\u00b7laci\u00f3 amb marcat ATEX per precauci\u00f3 encareix el projecte sense necessitat; no marcar els que s\u00ed que ho requereixen \u00e9s un risc de seguretat i de compliment normatiu. L&#8217;\u00fanica manera correcta de resoldre&#8217;l \u00e9s partir de l&#8217;estudi de zones, armari per armari, no una decisi\u00f3 gen\u00e8rica per a tot el projecte.  <\/p>\n\n<h2 class=\"wp-block-heading\">Necessites definir l&#8217;armari el\u00e8ctric adequat per a la planta qu\u00edmica?<\/h2>\n\n<p class=\"wp-block-paragraph\">A Volthree analitzem cada l\u00ednia i cada zona de la teva instal\u00b7laci\u00f3 per especificar el material, el grau de protecci\u00f3 i el marcatge ATEX que realment necessita el teu proc\u00e9s, evitant sobrecostos per sobreespecificaci\u00f3 i riscos per incompliment normatiu.<\/p>\n\n<hr class=\"wp-block-separator has-text-color has-white-color has-alpha-channel-opacity has-white-background-color has-background\" style=\"margin-top:170;margin-bottom:170\"\/>\n\n<div class=\"wp-block-buttons buttonvolthree is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-3e41869c wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button buttonvolthree\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/volthree.com\/ca\/contacte\/\" style=\"border-top-left-radius:0px;border-top-right-radius:0px;border-bottom-left-radius:0px;border-bottom-right-radius:0px\">Contacta amb el nostre equip t\u00e8cnic i explica&#8217;ns les caracter\u00edstiques de la teva planta<\/a><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>En ind\u00fastria aliment\u00e0ria el repte \u00e9s la neteja: aigua a pressi\u00f3, cicles CIP\/SIP, clor. En ind\u00fastria qu\u00edmica el repte \u00e9s distint i sovint m\u00e9s exigent: corrosi\u00f3 per contacte qu\u00edmic directe, i en determinades zones, risc d&#8217;atmosfera explosiva per gasos o vapors. Tractar tots dos problemes amb el mateix criteri d&#8217;especificaci\u00f3 \u00e9s l&#8217;error m\u00e9s habitual i el que m\u00e9s car surt a mitj\u00e0 termini.  <\/p>\n","protected":false},"author":1,"featured_media":3989,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[46],"tags":[],"class_list":["post-3990","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sense-categoria"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Armari El\u00e8ctric per a Ind\u00fastria Qu\u00edmica: Marcat ATEX<\/title>\n<meta name=\"description\" content=\"Quan \u00e9s obligatori el marcatge ATEX en un armari el\u00e8ctric per a ind\u00fastria qu\u00edmica: corrosi\u00f3, material i grau IP.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, 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