{"id":3522,"date":"2026-06-02T08:21:57","date_gmt":"2026-06-02T06:21:57","guid":{"rendered":"https:\/\/www.easygost.com\/?post_type=glossary&#038;p=3522"},"modified":"2026-06-10T15:58:02","modified_gmt":"2026-06-10T13:58:02","slug":"tr-cu-012-2011-explosion-protection","status":"publish","type":"glossary","link":"https:\/\/www.easygost.com\/en\/glossary\/tr-cu-012-2011-explosion-protection\/","title":{"rendered":"TR CU 012\/2011 \u2013 Explosion Protection"},"content":{"rendered":"<p>TR CU 012\/2011 is the Technical Regulation of the <a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/customs-union\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>Customs Union<\/a> on the Safety of Equipment and Protective Systems Intended for Use in Explosive Atmospheres within the Eurasian Economic Union (<a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/eaeu\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>EAEU<\/a>). The regulation defines mandatory requirements for products used in potentially explosive environments and is intended to protect people, industrial facilities and the environment against explosion hazards.<\/p>\n<p>TR CU 012\/2011 forms the regulatory basis for <a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/explosion-protection\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">explosion protection<\/a> within the <a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/eaeu\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>EAEU<\/a> and is functionally comparable to the European ATEX Directive. However, there is no mutual recognition between ATEX and <a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/eac\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>EAC<\/a> EX certification.<\/p>\n<p>The regulation particularly applies to:<\/p>\n<ul>\n<li>electrical equipment for hazardous areas,<\/li>\n<li>sensors,<\/li>\n<li>control systems,<\/li>\n<li>industrial installations,<\/li>\n<li>pumps,<\/li>\n<li>valves,<\/li>\n<li>explosion-protected machinery,<\/li>\n<li>measuring devices,<\/li>\n<li>as well as protective systems for hazardous environments.<\/li>\n<\/ul>\n<p>TR CU 012\/2011 primarily serves to:<\/p>\n<ul>\n<li>prevent explosions,<\/li>\n<li>eliminate ignition sources,<\/li>\n<li>ensure safe operating conditions,<\/li>\n<li>minimize risks in hazardous environments,<\/li>\n<li>and ensure regulatory compliance of Ex-products within the <a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/eaeu\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>EAEU<\/a>.<\/li>\n<\/ul>\n<p>Regulatory requirements are based on:<\/p>\n<ul>\n<li>TR CU 012\/2011,<\/li>\n<li><a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/gost-standards\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>GOST standards<\/a>,<\/li>\n<li><a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/explosion-protection\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">explosion protection<\/a> standards,<\/li>\n<li>technical safety regulations,<\/li>\n<li>as well as supplementary Technical Regulations of the <a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/eaeu\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>EAEU<\/a>.<\/li>\n<\/ul>\n<p>Core requirements particularly include:<\/p>\n<ul>\n<li><a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/hazard-analysis\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>hazard analysis<\/a>,<\/li>\n<li><a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/risk-assessment\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>risk assessment<\/a>,<\/li>\n<li>specialized Ex-testing,<\/li>\n<li>ignition protection evaluation,<\/li>\n<li><a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/technical-documentation\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Technical Documentation<\/a>,<\/li>\n<li><a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/safety-justification\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Safety Justification<\/a>,<\/li>\n<li>material evaluation,<\/li>\n<li>as well as EX marking.<\/li>\n<\/ul>\n<p>Within <a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/eac\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>EAC<\/a> EX <a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/conformity-assessment\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">conformity assessment<\/a> procedures, evaluations typically include:<\/p>\n<ul>\n<li><a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/explosion-protection\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">explosion protection<\/a> concepts,<\/li>\n<li>electrical safety,<\/li>\n<li>temperature classes,<\/li>\n<li>protection types,<\/li>\n<li>ignition protection methods,<\/li>\n<li>material properties,<\/li>\n<li>pressure resistance,<\/li>\n<li>functional safety,<\/li>\n<li>as well as operational behavior under real conditions.<\/li>\n<\/ul>\n<p>Depending on the product and <a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/certification-scheme\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">certification scheme<\/a>, procedures may include:<\/p>\n<ul>\n<li><a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/technical-documentation\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Technical Documentation<\/a> review,<\/li>\n<li>laboratory testing,<\/li>\n<li>risk assessments,<\/li>\n<li><a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/material-testing\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>Material Testing<\/a>,<\/li>\n<li><a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/production-surveillance\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">production surveillance<\/a>,<\/li>\n<li>Inspection Audits,<\/li>\n<li>as well as evaluations by accredited Certification Bodies.<\/li>\n<\/ul>\n<p>EX marking confirms that a product is approved for use in hazardous areas within the <a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/eaeu\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>EAEU<\/a> and complies with the applicable regulatory requirements.<\/p>\n<p>TR CU 012\/2011 is considered one of the strictest and technically most demanding areas of <a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/eac\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>EAC<\/a> <a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/conformity-assessment\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">conformity assessment<\/a>. The regulation is particularly relevant for:<\/p>\n<ul>\n<li>oil and gas industry,<\/li>\n<li>chemical plants,<\/li>\n<li>refineries,<\/li>\n<li>energy systems,<\/li>\n<li>mining industry,<\/li>\n<li>process industry,<\/li>\n<li>as well as industrial high-risk environments.<\/li>\n<\/ul>\n<p>Missing or insufficient compliance with TR CU 012\/2011 may result in:<\/p>\n<ul>\n<li>rejection of certification,<\/li>\n<li>import prohibitions,<\/li>\n<li>operational restrictions,<\/li>\n<li>safety risks,<\/li>\n<li>regulatory findings,<\/li>\n<li>or significant liability risks.<\/li>\n<\/ul>\n<p>Common problems particularly arise from:<\/p>\n<ul>\n<li>incomplete Ex-documentation,<\/li>\n<li>incorrect hazardous area classification,<\/li>\n<li>missing <a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/hazard-analysis\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>hazard analysis<\/a>,<\/li>\n<li>incorrect <a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/product-classification\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">product classification<\/a>,<\/li>\n<li>or assuming that ATEX certificates are automatically recognized.<\/li>\n<\/ul>\n<p>TR CU 012\/2011 is closely connected to:<\/p>\n<ul>\n<li><a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/eac\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>EAC<\/a> EX certification,<\/li>\n<li><a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/explosion-protection\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">explosion protection<\/a>,<\/li>\n<li>ATEX,<\/li>\n<li>risk assessments,<\/li>\n<li>Safety Justifications,<\/li>\n<li><a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/technical-documentation\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Technical Documentation<\/a>,<\/li>\n<li><a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/product-testing\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>Product Testing<\/a>,<\/li>\n<li>as well as machinery and industrial safety.<\/li>\n<\/ul>\n<p>Regulatorily compliant implementation of TR CU 012\/2011 is essential for the safe and legally compliant operation of explosion-protected products within the Eurasian Economic Union.<\/p>\n<p>We support manufacturers, plant engineering companies and exporters in the regulatorily compliant implementation of TR CU 012\/2011 requirements. Our services include <a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/hazard-analysis\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>hazard analysis<\/a>, technical evaluation, Ex-documentation, testing coordination as well as cooperation with accredited testing laboratories and Certification Bodies. This ensures legally compliant and efficient market access for explosion-protected products throughout the <a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/eaeu\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>EAEU<\/a>.<\/p>\n<h3>Related Terms<\/h3>\n<ul>\n<li><a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/eac\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>EAC<\/a> ATEX<\/li>\n<li><a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/explosion-protection\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Explosion Protection<\/a><\/li>\n<li><a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/explosion-protection-documentation\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Explosion Protection Documentation<\/a><\/li>\n<li><a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/hazard-analysis\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>Hazard Analysis<\/a><\/li>\n<li><a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/risk-assessment\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>Risk Assessment<\/a><\/li>\n<li><a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/product-testing\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>Product Testing<\/a><\/li>\n<li><a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/technical-documentation\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Technical Documentation<\/a><\/li>\n<li><a class=\"glossaryLink\"  href=\"https:\/\/www.easygost.com\/en\/glossary\/eac-certificate\/\"  data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]'  tabindex='0' role='link'>EAC Certificate<\/a><\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>TR CU 012\/2011 is the Technical Regulation of the <a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/customs-union\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">Customs Union<\/a> on the Safety of Equipment and Protective Systems Intended for Use in Explosive Atmospheres within the Eurasian Economic Union (<a class=\"glossaryLink\" href=\"https:\/\/www.easygost.com\/en\/glossary\/eaeu\/\" data-gt-translate-attributes='[{\"attribute\":\"data-cmtooltip\", \"format\":\"html\"}]' tabindex=\"0\" role=\"link\">EAEU<\/a>). The regulation defines mandatory requirements for products used in potentially explosive environments and is intended to protect people, industrial facilities and the environment against [&#x2026;]<\/p>\n","protected":false},"author":3,"featured_media":0,"menu_order":0,"template":"","meta":{"footnotes":""},"class_list":["post-3522","glossary","type-glossary","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.easygost.com\/en\/wp-json\/wp\/v2\/glossary\/3522","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.easygost.com\/en\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/www.easygost.com\/en\/wp-json\/wp\/v2\/types\/glossary"}],"author":[{"embeddable":true,"href":"https:\/\/www.easygost.com\/en\/wp-json\/wp\/v2\/users\/3"}],"version-history":[{"count":2,"href":"https:\/\/www.easygost.com\/en\/wp-json\/wp\/v2\/glossary\/3522\/revisions"}],"predecessor-version":[{"id":3524,"href":"https:\/\/www.easygost.com\/en\/wp-json\/wp\/v2\/glossary\/3522\/revisions\/3524"}],"wp:attachment":[{"href":"https:\/\/www.easygost.com\/en\/wp-json\/wp\/v2\/media?parent=3522"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}