{"id":4284,"date":"2023-04-23T20:40:31","date_gmt":"2023-04-23T12:40:31","guid":{"rendered":"http:\/\/www.dcl-controls.com\/?p=4284"},"modified":"2025-03-31T09:27:20","modified_gmt":"2025-03-31T09:27:20","slug":"why-explosion-proof-actuator","status":"publish","type":"post","link":"https:\/\/dclcontrols.com\/is_is\/studningur\/styritaeki\/hvers-vegna-sprengiheldur-styribunadur","title":{"rendered":"Af hverju \u00feurfa sumir st\u00fdriv\u00e9lar sprengiv\u00f6rn?"},"content":{"rendered":"
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\u00a0<\/p>

1. Hva\u00f0 er sprenging?<\/strong><\/h2>

Sprenging ver\u00f0ur \u00feegar Eldfim efni blandast s\u00farefni<\/strong> og kvikna vi\u00f0 \u00e1kve\u00f0nar a\u00f0st\u00e6\u00f0ur. Ef vi\u00f0brag\u00f0shra\u00f0i fer yfir hlj\u00f3\u00f0hra\u00f0a<\/strong>, \u00fea\u00f0 lei\u00f0ir til ey\u00f0ileggjandi sprengibylgja<\/strong>.<\/p>

2. Hva\u00f0 er sprengivarnir?<\/strong><\/h2>

Til koma \u00ed veg fyrir sprengingar<\/strong>ver\u00f0ur a\u00f0 hafa stj\u00f3rn \u00e1 a\u00f0 minnsta kosti einum af \u00feremur lykil\u00fe\u00e1ttum:<\/p>

  1. Eldfim efni<\/strong><\/p><\/li>

  2. S\u00farefni<\/strong><\/p><\/li>

  3. Kveikjugjafi<\/strong><\/p><\/li><\/ol>

    S\u00ed\u00f0an Eldfim efni og s\u00farefni eru oft \u00f3hj\u00e1kv\u00e6mileg<\/strong> \u00ed i\u00f0na\u00f0arumhverfi, kveikjugjafinn ver\u00f0ur a\u00f0 stj\u00f3rna<\/strong>.<\/p>

    Rafmagnsb\u00fana\u00f0ur er a hugsanleg kveikjugjafi<\/strong> vegna:
    \u2714 Yfirbor\u00f0shitun me\u00f0an \u00e1 notkun stendur<\/strong>
    \u2714 Rafst\u00f6\u00f0u\u00fathle\u00f0sla<\/strong>
    \u2714 Neistar fr\u00e1 rafstraumum<\/strong><\/p>

    Sprengjuheldur rafb\u00fana\u00f0ur er hanna\u00f0 til a\u00f0 koma \u00ed veg fyrir \u00f3h\u00f3flegan yfirbor\u00f0shita og rafsv\u00f6run<\/strong>, a\u00f0 tryggja a\u00f0 \u00fea\u00f0 ver\u00f0ur ekki kveikjugjafi<\/strong>.<\/p>

    <\/p>

    3. Flokkun h\u00e6ttulegra umhverfa<\/strong><\/h2>

    Sprengjuheldur rafb\u00fana\u00f0ur er flokka\u00f0ur \u00ed tvo flokka:<\/p>

    • Flokkur I<\/strong>B\u00fana\u00f0ur fyrir kolan\u00e1mur<\/strong><\/p><\/li>

    • Flokkur II<\/strong>B\u00fana\u00f0ur fyrir \u00f6nnur sprengifim gasumhverfi<\/strong><\/p><\/li><\/ul>

      B\u00fana\u00f0ur \u00ed flokki II<\/strong><\/h3>

      1. Sprengih\u00f3par (byggt \u00e1 \u00f6ryggisbili og kveikjustraumi)<\/strong><\/p>

        • IIA<\/strong><\/p><\/li>

        • IIB<\/strong> (h\u00e6gt a\u00f0 nota vi\u00f0 IIA a\u00f0st\u00e6\u00f0ur)<\/p><\/li>

        • IIC<\/strong> (h\u00e6gt a\u00f0 nota vi\u00f0 IIA og IIB a\u00f0st\u00e6\u00f0ur)<\/p><\/li><\/ul><\/li>

        • Hitastigsh\u00f3par (byggt \u00e1 h\u00e1markshita yfirbor\u00f0s)<\/strong><\/p>

          • T1 (450\u00b0C)<\/strong><\/p><\/li>

          • T2 (300\u00b0C)<\/strong><\/p><\/li>

          • T3 (200\u00b0C)<\/strong><\/p><\/li>

          • T4 (135\u00b0C)<\/strong><\/p><\/li>

          • T5 (100\u00b0C)<\/strong><\/p><\/li>

          • T6 (85\u00b0C)<\/strong><\/p><\/li><\/ul><\/li><\/ol>

            Meira en 90% af sprengifimum lofttegundum<\/strong> falla undir IIA, IIB h\u00f3par<\/strong> og T1\u2013T4 hitastigsflokkun<\/strong>.<\/p>

            <\/p>

            4. Hvernig er sprengiv\u00f6rn n\u00e1\u00f0?<\/strong><\/h2>

            Nokkrar a\u00f0fer\u00f0ir tryggja a\u00f0 rafb\u00fana\u00f0ur s\u00e9 \u00f6ruggt fyrir sprengifimt umhverfi<\/strong>, eins og skilgreint er af GB3836, IEC60079, EN50014<\/strong> sta\u00f0lar.<\/p>

            <\/p>

            Sprengiheld h\u00f6nnun (Exd)<\/strong><\/h3>

            Sprengjuheldir st\u00fdriv\u00e9lar fr\u00e1 DCL eru framleiddar \u00ed samr\u00e6mi vi\u00f0:
            \u2714 GB3836.1-2010, GB3836.2-2010<\/strong>
            \u2714 IEC 60079-0, IEC 60079-1, IEC 60079-31<\/strong>
            \u2714 ISO\/IEC 80079-36, ISO\/IEC 80079-37<\/strong><\/p>

            H\u00f6nnunarreglur fyrir eldvarnarefni (Exc)<\/strong><\/h4>

            <\/p>

            \u2714 Sprenging g\u00e6ti \u00e1tt s\u00e9r sta\u00f0 inni \u00ed t\u00e6kinu<\/strong>, en gir\u00f0ingin kemur \u00ed veg fyrir a\u00f0 \u00fea\u00f0 kveiki \u00ed ytra umhverfi.
            \u2714 Eldvarnar samskeyti<\/strong> eru h\u00f6nnu\u00f0 me\u00f0 r\u00e9ttu bil og lengd<\/strong> til a\u00f0 hefta innri sprengingar.
            \u2714 Sterk gir\u00f0ingar<\/strong> \u00feola mikill innri \u00fer\u00fdstingur<\/strong> \u00e1n \u00feess a\u00f0 brotna.<\/p>

            Sprengjuheldir \u00edhlutir DCL<\/strong><\/h3>

            \u2714 M\u00f3torr\u00fdmi<\/strong>
            \u2714 Rafmagns\u00edhlutah\u00f3lf<\/strong>
            \u2714 Rafmagnsh\u00f3lf<\/strong><\/p>

            5. Vottun DCL fyrir sprengihelda st\u00fdrib\u00fana\u00f0<\/strong><\/h2>

            Sprengjuvarnarstig: Exd IIC T4 Gb<\/strong><\/h3>

            \u2714 Fyrrverandi<\/strong> \u2013 Sprengjuvarnarmerking
            \u2714 d<\/strong> \u2013 Eldvarnarger\u00f0 (\u201eExd\u201c)
            \u2714 II.<\/strong> \u2013 Forrit sem ekki tengjast n\u00e1muvinnslu
            \u2714 C<\/strong> \u2013 Sprengih\u00f3pur (h\u00e6rri \u00f6ryggiskr\u00f6fur)
            \u2714 T4<\/strong> \u2013 H\u00e1marks yfirbor\u00f0shitastig 135\u00b0C<\/strong>
            \u2714 Gb<\/strong> \u2013 Verndunarstig b\u00fana\u00f0ar<\/p>

            Ni\u00f0ursta\u00f0a<\/strong><\/h3>

            Sprengjuheldir st\u00fdriv\u00e9lar eru nau\u00f0synlegar \u00ed h\u00e6ttulegt umhverfi<\/strong> a\u00f0 koma \u00ed veg fyrir kveikja \u00ed sprengifimum lofttegundum<\/strong>DCL-n\u00famer St\u00fdriv\u00e9lar me\u00f0 Exd IIC T4 Gb-gr\u00e1\u00f0u<\/strong> tryggja \u00f6ryggi me\u00f0 \u00fev\u00ed a\u00f0:
            \u2714 Inniheldur innri sprengingar<\/strong>
            \u2714 A\u00f0 koma \u00ed veg fyrir neista og ofhita<\/strong>
            \u2714 \u00deolir h\u00e1an \u00fer\u00fdsting \u00e1n \u00feess a\u00f0 springa<\/strong><\/p>

            \u00deessar h\u00f6nnunarr\u00e1\u00f0stafanir gera DCL st\u00fdriv\u00e9lar \u00e1rei\u00f0anlegir og \u00f6ruggir<\/strong> fyrir i\u00f0na\u00f0arnotkun \u00ed sprengifimum andr\u00famsloftum<\/strong>.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"

            \u00a0 1. Hva\u00f0 er sprenging? Sprenging ver\u00f0ur \u00feegar eldfim efni blandast s\u00farefni og kvikna \u00ed vi\u00f0 \u00e1kve\u00f0nar a\u00f0st\u00e6\u00f0ur. Ef vi\u00f0brag\u00f0shra\u00f0i fer yfir hlj\u00f3\u00f0hra\u00f0a veldur \u00fea\u00f0 ey\u00f0ileggjandi sprengibylgju. 2. Hva\u00f0 eru sprengivarnir? Til a\u00f0 koma \u00ed veg fyrir sprengingar ver\u00f0ur a\u00f0 hafa stj\u00f3rn \u00e1 a\u00f0 minnsta kosti einum af \u00feremur lykil\u00fe\u00e1ttum: [\u2026]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"elementor_theme","format":"standard","meta":{"_acf_changed":true,"footnotes":""},"categories":[91],"tags":[53,66,39],"class_list":["post-4284","post","type-post","status-publish","format-standard","hentry","category-an-actuator","tag-actuator","tag-explosion-proof-actuator","tag-faq"],"acf":[],"_links":{"self":[{"href":"https:\/\/dclcontrols.com\/is_is\/wp-json\/wp\/v2\/posts\/4284","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dclcontrols.com\/is_is\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dclcontrols.com\/is_is\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dclcontrols.com\/is_is\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/dclcontrols.com\/is_is\/wp-json\/wp\/v2\/comments?post=4284"}],"version-history":[{"count":0,"href":"https:\/\/dclcontrols.com\/is_is\/wp-json\/wp\/v2\/posts\/4284\/revisions"}],"wp:attachment":[{"href":"https:\/\/dclcontrols.com\/is_is\/wp-json\/wp\/v2\/media?parent=4284"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dclcontrols.com\/is_is\/wp-json\/wp\/v2\/categories?post=4284"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dclcontrols.com\/is_is\/wp-json\/wp\/v2\/tags?post=4284"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}