{"id":49255,"date":"2025-08-07T09:17:30","date_gmt":"2025-08-07T08:17:30","guid":{"rendered":"https:\/\/www.gt-engineering.it\/?post_type=normativa_tecnica&#038;p=49255"},"modified":"2025-08-07T15:12:03","modified_gmt":"2025-08-07T14:12:03","slug":"iec-ts-60079-42-ignition-prevention-by-safety-device-2","status":"publish","type":"normativa_tecnica","link":"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/","title":{"rendered":"IEC TS 60079-42 &#8211; Ignition prevention by safety device &#8211; 2"},"content":{"rendered":"\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-2xs\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start md:block\">\n\n    \n                    <div class=\"mb-6 relative w-full md:mb-4 lg:mb-8 xl:mb-9\">\n                \n        <div                class=\"m-headings\"\n            >\n    \n    \n<h2 class=\"a-heading text-primary font-heading text-lg lg:text-xl font-normal mt-2 first:mt-0\">\n                    Safety characteristics of a safety device     <\/h2>\n        <\/div>\n                <\/div>\n        \n        \n                    <div class=\"relative w-full\">\n                \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>A safety device shall provide a level of safety, or better speaking, a safety integrity, suitable for the required ignition risk reduction for the Ex equipment, by previding a minimum risk reduction factor according to Table 1.<\/p>\n<\/div>            <\/div>\n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n\n\n\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-none\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start md:block\">\n\n    \n        \n                    <div\n                class=\"h-auto mb-6 md:mb-4 lg:mb-8 xl:mb-9 float-left mr-6 md:mr-4 lg:mr-8 xl:mr-9  overflow-hidden shadow-content-image w-full md:w-1\/3\"\n            >\n                \r\n\r\n    \r\n        \r\n            \r\n                \r\n                    <picture\r\n                        class=\"\"\r\n                                            >\r\n                                                                                                        <source\r\n                                media=\"(max-width: 150px)\"\r\n                                width=\"150\"\r\n                                height=\"150\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-84-150x150.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 300px)\"\r\n                                width=\"300\"\r\n                                height=\"165\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-84-300x165.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 768px)\"\r\n                                width=\"768\"\r\n                                height=\"423\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-84-768x423.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                                <source\r\n                                media=\"(max-width: 1024px)\"\r\n                                width=\"1024\"\r\n                                height=\"565\"\r\n                                srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-84-1024x565.png.webp\"\r\n                                type=\"image\/webp\"\r\n                            \/>\r\n                                                                            <img\r\n                            class=\"a-image transparent border-image h-auto  w-full\"\r\n                                                        srcset=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-84.png.webp\"\r\n                                                        title=\"Senza titolo\"\r\n                                                        type=\"image\/webp\"\r\n                        \/>\r\n                    <\/picture>\r\n\r\n                \r\n\r\n                    \r\n    \r\n            <\/div>\n        \n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n\n\n\n\n    \n        <section\n            data-name=\"Contenuto testuale con immagine\"\n            class=\"bow-gte-testo-media u-spacer-none\"\n            id=\"\"\n        >\n            \n<div class=\"o-text-media px-side-spacer sm:px-side-spacer-sm lg:px-side-spacer-tablet 2xl:px-side-spacer-desktop flex flex-wrap items-start md:block\">\n\n    \n        \n        \n                    <div class=\"relative w-full\">\n                \n<div class=\"a-text font-text text-base normal mt-8 first:mt-0 space-y-4\">\n    <p>By applying addictional safety precautions in the event of an ignition the RRF (factor by which the probability of the occurrence of an ignition source in the EEUC is reduced by the safety device) shown in the table above may be reduced.<\/p>\n<p>If that is the case, the RRF need to be verified.<\/p>\n<\/div>            <\/div>\n        \n        \n                <div class=\"clear-both\"><\/div>\n        \n\n    <\/div>\n        <\/section>\n\n    \n","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":49256,"parent":49236,"menu_order":2,"template":"","meta":{"_acf_changed":false,"footnotes":""},"normative-tecniche":[60],"class_list":["post-49255","normativa_tecnica","type-normativa_tecnica","status-publish","has-post-thumbnail","hentry","tipologia_normativa-atex-standards"],"acf":{"sottotitolo":"","allegati":null},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>IEC TS 60079-42 - Ignition prevention by safety device - 2 - Gt-Engineering<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"IEC TS 60079-42 - Ignition prevention by safety device - 2 - Gt-Engineering\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/\" \/>\n<meta property=\"og:site_name\" content=\"Gt-Engineering\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-07T14:12:03+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-84.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1284\" \/>\n\t<meta property=\"og:image:height\" content=\"708\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/\",\"url\":\"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/\",\"name\":\"IEC TS 60079-42 - Ignition prevention by safety device - 2 - Gt-Engineering\",\"isPartOf\":{\"@id\":\"https:\/\/www.gt-engineering.it\/en\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-84.png\",\"datePublished\":\"2025-08-07T08:17:30+00:00\",\"dateModified\":\"2025-08-07T14:12:03+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/#primaryimage\",\"url\":\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-84.png\",\"contentUrl\":\"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-84.png\",\"width\":1284,\"height\":708},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.gt-engineering.it\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Technical standards\",\"item\":\"https:\/\/www.gt-engineering.it\/en\/normative-tecniche\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"ATEX Standards\",\"item\":\"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/\"},{\"@type\":\"ListItem\",\"position\":4,\"name\":\"IEC TS 60079-42\",\"item\":\"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/\"},{\"@type\":\"ListItem\",\"position\":5,\"name\":\"IEC TS 60079-42 &#8211; Ignition prevention by safety device &#8211; 2\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.gt-engineering.it\/en\/#website\",\"url\":\"https:\/\/www.gt-engineering.it\/en\/\",\"name\":\"Gt-Engineering\",\"description\":\"bizonweb\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.gt-engineering.it\/en\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"IEC TS 60079-42 - Ignition prevention by safety device - 2 - Gt-Engineering","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/","og_locale":"en_US","og_type":"article","og_title":"IEC TS 60079-42 - Ignition prevention by safety device - 2 - Gt-Engineering","og_url":"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/","og_site_name":"Gt-Engineering","article_modified_time":"2025-08-07T14:12:03+00:00","og_image":[{"width":1284,"height":708,"url":"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-84.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/","url":"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/","name":"IEC TS 60079-42 - Ignition prevention by safety device - 2 - Gt-Engineering","isPartOf":{"@id":"https:\/\/www.gt-engineering.it\/en\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/#primaryimage"},"image":{"@id":"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/#primaryimage"},"thumbnailUrl":"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-84.png","datePublished":"2025-08-07T08:17:30+00:00","dateModified":"2025-08-07T14:12:03+00:00","breadcrumb":{"@id":"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/#primaryimage","url":"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-84.png","contentUrl":"https:\/\/www.gt-engineering.it\/wp-content\/uploads\/2025\/08\/Senza-titolo-84.png","width":1284,"height":708},{"@type":"BreadcrumbList","@id":"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/iec-ts-60079-42-ignition-prevention-by-safety-device-2\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.gt-engineering.it\/en\/"},{"@type":"ListItem","position":2,"name":"Technical standards","item":"https:\/\/www.gt-engineering.it\/en\/normative-tecniche\/"},{"@type":"ListItem","position":3,"name":"ATEX Standards","item":"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/"},{"@type":"ListItem","position":4,"name":"IEC TS 60079-42","item":"https:\/\/www.gt-engineering.it\/en\/technical-standards\/atex-standards\/iec-ts-60079-42\/"},{"@type":"ListItem","position":5,"name":"IEC TS 60079-42 &#8211; Ignition prevention by safety device &#8211; 2"}]},{"@type":"WebSite","@id":"https:\/\/www.gt-engineering.it\/en\/#website","url":"https:\/\/www.gt-engineering.it\/en\/","name":"Gt-Engineering","description":"bizonweb","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.gt-engineering.it\/en\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"}]}},"_links":{"self":[{"href":"https:\/\/www.gt-engineering.it\/en\/wp-json\/wp\/v2\/normativa_tecnica\/49255","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.gt-engineering.it\/en\/wp-json\/wp\/v2\/normativa_tecnica"}],"about":[{"href":"https:\/\/www.gt-engineering.it\/en\/wp-json\/wp\/v2\/types\/normativa_tecnica"}],"author":[{"embeddable":true,"href":"https:\/\/www.gt-engineering.it\/en\/wp-json\/wp\/v2\/users\/2"}],"version-history":[{"count":2,"href":"https:\/\/www.gt-engineering.it\/en\/wp-json\/wp\/v2\/normativa_tecnica\/49255\/revisions"}],"predecessor-version":[{"id":49311,"href":"https:\/\/www.gt-engineering.it\/en\/wp-json\/wp\/v2\/normativa_tecnica\/49255\/revisions\/49311"}],"up":[{"embeddable":true,"href":"https:\/\/www.gt-engineering.it\/en\/wp-json\/wp\/v2\/normativa_tecnica\/49236"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.gt-engineering.it\/en\/wp-json\/wp\/v2\/media\/49256"}],"wp:attachment":[{"href":"https:\/\/www.gt-engineering.it\/en\/wp-json\/wp\/v2\/media?parent=49255"}],"wp:term":[{"taxonomy":"tipologia_normativa","embeddable":true,"href":"https:\/\/www.gt-engineering.it\/en\/wp-json\/wp\/v2\/normative-tecniche?post=49255"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}