{"id":48322,"date":"2020-10-13T11:18:33","date_gmt":"2020-10-13T09:18:33","guid":{"rendered":"https:\/\/www.walraven.com\/en\/?p=56981"},"modified":"2024-08-21T12:04:16","modified_gmt":"2024-08-21T10:04:16","slug":"varfor-ska-man-anvanda-eta-godkanda-betongskruvar","status":"publish","type":"post","link":"https:\/\/www.walraven.com\/se\/om-walraven\/nyheter\/varfor-ska-man-anvanda-eta-godkanda-betongskruvar\/","title":{"rendered":"Varf\u00f6r ska man anv\u00e4nda ETA-godk\u00e4nda betongskruvar?"},"content":{"rendered":"<p>Ankare anv\u00e4nds ofta i s\u00e4kerhetskritiska installationer. Men vad \u00e4r en s\u00e4kerhetskritisk applikation, och hur viktigt \u00e4r det att anv\u00e4nda ETA-godk\u00e4nda betongskruvankare?<\/p>\n<p>De europeiska riktlinjerna f\u00f6r tekniskt godk\u00e4nnande definierar s\u00e4kerhetskritiska till\u00e4mpningar som:<\/p>\n<p><em>&#8220;Till\u00e4mpningar d\u00e4r fel p\u00e5 ett ankare kan resultera i kollaps eller delvis kollaps av en struktur, orsaka risk f\u00f6r stora risker eller leda till betydande ekonomisk f\u00f6rlust&#8221;<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-56690 alignright\" src=\"https:\/\/www.walraven.com\/wp-content\/uploads\/sites\/11\/2020\/09\/Ducting-collapse-252x300.jpg\" alt=\"anchor failure\" width=\"252\" height=\"300\" \/><\/em><\/p>\n<p>Under det senaste decenniet s\u00e5 har det f\u00f6rekommit ett antal st\u00f6rre installationsfel som resulterat i allvarliga skador och d\u00f6dsfall. De vanligaste orsakerna till att dessa intr\u00e4ffar \u00e4r:<\/p>\n<ul>\n<li>Felaktigt ankarval<\/li>\n<li>Felaktig installation<\/li>\n<li>Specifikations\u00e4ndringar<\/li>\n<\/ul>\n<p>F\u00f6r att s\u00e4kerst\u00e4lla att detta inte h\u00e4nder \u00e4r det anv\u00e4ndbart att ha en f\u00f6rst\u00e5else f\u00f6r de relevanta riktlinjerna som <a href=\"https:\/\/www.walraven.com\/en\/how-to-guides\/bs8539\/\">BS8539:2012<\/a> och vad ETA-godk\u00e4nnanden \u00e4r. Du kan ocks\u00e5 l\u00e4sa v\u00e5ra b\u00e4sta tips f\u00f6r montering av betongskruvar <a href=\"https:\/\/www.walraven.com\/se\/om-walraven\/nyheter\/tips-for-montering-av-betongskruvar\/\">h\u00e4r<\/a>.<\/p>\n<h2>Vad kan h\u00e4nda om fixering misslyckas?<\/h2>\n<p>Failure can occur for a number of reasons including concrete cone failure, anchor pull out, bolt breakage and splitting.<\/p>\n<p>Fel kan uppst\u00e5 av ett antal orsaker, fel i betongstruktur, utdragning av ankare, bultbrott och splittring.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-56765 size-full aligncenter\" src=\"https:\/\/www.walraven.com\/wp-content\/uploads\/sites\/11\/2020\/09\/anchor-failure-pics.jpg\" alt=\"anchor failure\" width=\"599\" height=\"228\" \/><\/p>\n<p>Via dessa misslyckanden inf\u00f6rde CFA en upps\u00e4ttning riktlinjer, BS8539:2012 som \u00e4r en standard uppf\u00f6randekod f\u00f6r ankare. Det \u00f6verordnade meddelandet fr\u00e5n BS8539:2012 \u00e4r att ETA-godk\u00e4nda ankare ska anv\u00e4ndas n\u00e4r det \u00e4r m\u00f6jligt.<\/p>\n<h2><strong>Vad \u00e4r en ETA?<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-52601 alignright\" src=\"https:\/\/www.walraven.com\/wp-content\/uploads\/sites\/11\/2018\/06\/ETA-300x120.jpg\" alt=\"ETA\" width=\"300\" height=\"120\" \/><\/strong><\/h2>\n<p>En ETA (European Technical Assessment) \u00e4r ett v\u00e4rldsomsp\u00e4nnande erk\u00e4nt ramverk f\u00f6r att testa ankare, bed\u00f6ma och tolka testresultat och publicera dem i ett standardiserat format. En ETA kommer att beskriva vilka applikationer ankaret \u00e4r l\u00e4mpligt f\u00f6r, dess applikationsgr\u00e4nser, prestandaegenskaper och hur det ska installeras.<\/p>\n<p>F\u00f6r att f\u00e5 ett ETA m\u00e5ste en produkt ha testats noggrant enligt strikta EU-h\u00e4rledda standarder som kallas EADs (European Assessment Documents). Tidigare ETAGs. F\u00f6r ytterligare information om EADs och ETA-testning, se CFA v\u00e4gledning.<\/p>\n<h2><strong>Varf\u00f6r ska man anv\u00e4nda ETA-godk\u00e4nda betongskruvar?<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-56770 alignright\" src=\"https:\/\/www.walraven.com\/wp-content\/uploads\/sites\/11\/2020\/09\/CS-ETA-install-snip-213x300.jpg\" alt=\"eta concrete screw\" width=\"213\" height=\"300\" \/><\/strong><\/h2>\n<p><strong>Garantera att ankaret inte kommer att g\u00e5 s\u00f6nder<\/strong>, f\u00f6rutsatt att ankaret har valts och installerats enligt beskrivningen i ETA. Detta inneb\u00e4r att ansvarsskyldighet f\u00f6r specifikationer och installat\u00f6rer \u00e4r s\u00e4kerst\u00e4llda och installationen kommer att f\u00f6lja BS8539.<\/p>\n<p><strong>Val av ankare g\u00f6rs enklare med ETA<\/strong>. Design enligt den relevanta designmetoden, tillsammans med programvara f\u00f6r att v\u00e4gleda urvalsprocessen, g\u00f6r att specifikationer kan vara s\u00e4kra p\u00e5 att det mest l\u00e4mpliga ankaret har valts. Detta s\u00e4kerst\u00e4ller ekonomisk design av ankare med l\u00e4mplig s\u00e4kerhetsmarginal.<\/p>\n<p><strong>Detaljerade installationsinstruktioner finns i ETA som ger<\/strong> entrepren\u00f6ren trygghet i att installationen kan utf\u00f6ras korrekt. Korrekt installation \u00e4r avg\u00f6rande f\u00f6r att undvika ankarfel i framtiden.<\/p>\n<p><strong>Det g\u00e5r att lita p\u00e5 prestandav\u00e4rden f\u00f6r godk\u00e4nda ankare.<\/strong> ETA-godk\u00e4nda ankare \u00e4r ocks\u00e5 CE-m\u00e4rkta vilket inneb\u00e4r att ankaret som levereras till arbetsplatsen kommer att ha exakt samma prestandav\u00e4rden som de som testades i godk\u00e4nnandeprocessen.<\/p>\n<h2>Kan ankare utan ETA litas p\u00e5?<\/h2>\n<p>Det finns m\u00e5nga ankare p\u00e5 marknaden utan ETA-godk\u00e4nnanden. Dessa produkter kan ha vissa prestandadata publicerade av deras tillverkare, leverant\u00f6r eller distribut\u00f6r men kan vi lita p\u00e5 detta?<\/p>\n<p>Verkligheten \u00e4r att best\u00e4mmande av ankarprestanda \u00e4r en komplicerad fr\u00e5ga. ETA-testning uts\u00e4tter f\u00f6rankring av produkter i ett stort antal komplexa testprogram f\u00f6r att s\u00e4kerst\u00e4lla s\u00e4kerheten och tillf\u00f6rlitligheten av deras prestanda i en m\u00e4ngd olika situationer.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-medium wp-image-56769 alignright\" src=\"https:\/\/www.walraven.com\/wp-content\/uploads\/sites\/11\/2020\/09\/CS-ETA-cover-image-210x300.jpg\" alt=\"eta concrete screw\" width=\"210\" height=\"300\" \/><\/p>\n<p>Kan du vara s\u00e4ker p\u00e5 att provningen p\u00e5 icke godk\u00e4nda ankare har utf\u00f6rts enligt samma h\u00e5rda kriterier? G\u00e5r det att lita p\u00e5 produktprestandadata?<\/p>\n<p>Sanningen \u00e4r att vi inte kan vara s\u00e4kra, och dessa produkter kommer inte att erbjuda garantier f\u00f6r prestanda p\u00e5 samma s\u00e4tt som ett ETA-godk\u00e4nt ankare kommer att g\u00f6ra.<\/p>\n<blockquote><p><em>&#8220;Att anv\u00e4nda ett icke-godk\u00e4nt ankare \u00e4r en risk, och du m\u00e5ste best\u00e4mma om det \u00e4r v\u00e4rt att ta. F\u00f6r b\u00e4sta s\u00e4kerhet skulle vi alltid rekommendera att anv\u00e4nda ETA-godk\u00e4nda ankare. ETA:er inf\u00f6rdes av en anledning s\u00e5 varf\u00f6r riskera att anv\u00e4nda n\u00e5got annat ?&#8221; Rob Lee, ankarexpert, Walraven<\/em><\/p><\/blockquote>\n<p>&nbsp;<\/p>\n<h2>Walravens ankarerbjudande<\/h2>\n<p>We pride ourselves on only offering products and services that we really believe in. Our heavy duty anchor range is ETA approved for your peace of mind. Alongside our approved product range we offer a technical support service, <a href=\"https:\/\/www.walraven.com\/en\/anchors\/anchor-design-software\/\">anchor selection software<\/a> and onsite support to help you every step of the way.<\/p>\n<p>Vi \u00e4r stolta \u00f6ver att endast erbjuda produkter och tj\u00e4nster som vi verkligen tror p\u00e5. V\u00e5rt sortiment av tunga ankare \u00e4r ETA-godk\u00e4nt f\u00f6r din s\u00e4kerhet. Ut\u00f6ver v\u00e5rt godk\u00e4nda produktsortiment erbjuder vi en teknisk supporttj\u00e4nst, <a href=\"https:\/\/www.walraven.com\/se\/infastningar\/ladda-ner-walraven-anchors-design-programvara\/\">programvara<\/a> f\u00f6r val av ankare och support p\u00e5 plats f\u00f6r att hj\u00e4lpa dig varje steg p\u00e5 v\u00e4gen.<\/p>\n<p>Alla v\u00e5ra ETA-dokument kan laddas ner fr\u00e5n v\u00e5rt <a href=\"https:\/\/www.walraven.com\/se\/nedladdningar\/\">dokumentbibliotek<\/a>.<\/p>\n<p>&nbsp;<\/p>\n<p><a href=\"https:\/\/www.walraven.com\/en\/anchors\/\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-56847 size-large\" src=\"https:\/\/www.walraven.com\/wp-content\/uploads\/sites\/11\/2020\/10\/Banner_view-our-anchor-product-range_1180x290px-1024x252.jpg\" alt=\"anchors range\" width=\"1024\" height=\"252\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ankare anv\u00e4nds ofta i s\u00e4kerhetskritiska installationer. Men vad \u00e4r en s\u00e4kerhetskritisk applikation, och hur viktigt \u00e4r det att anv\u00e4nda ETA-godk\u00e4nda betongskruvankare? De europeiska riktlinjerna f\u00f6r tekniskt godk\u00e4nnande definierar s\u00e4kerhetskritiska till\u00e4mpningar som: &#8220;Till\u00e4mpningar d\u00e4r fel p\u00e5 ett ankare kan resultera i kollaps eller delvis kollaps av en struktur, orsaka risk f\u00f6r stora risker eller leda till [&hellip;]<\/p>\n","protected":false},"author":18,"featured_media":48323,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-48322","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-geen-categorie"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Varf\u00f6r ska man anv\u00e4nda ETA-godk\u00e4nda betongskruvar?<\/title>\n<meta name=\"description\" content=\"F\u00f6r att f\u00f6rhindra allvarliga ankarfel rekommenderar BS8539:2012 att ETA-godk\u00e4nda ankare ska anv\u00e4ndas p\u00e5 alla installationer. 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