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Home | TR CU 012 On safety of equipment intended for use in explosive atmospheres 

TR CU 012/2011 On safety of equipment intended for use in potentially explosive atmospheres

Scope of application

This technical regulation of the Customs Union applies to electrical (electrical equipment), including Ex-components, and non-electrical equipment for operation in explosive environments.


The identification feature of equipment for work in explosive atmospheres and Ex-components is the presence of means of ensuring explosion protection specified in the manufacturer's technical documentation, and the explosion protection marking applied to the equipment and Ex-component.

Ex-classified zone

TR CU 012 is not applicable for:

  • Medical products

  • Equipment, during the operation of which there is a risk of explosion arises only due to the presence of explosive substances and unstable chemical compounds

  • Equipment for domestic and non-industrial use in conditions where an explosive atmosphere is formed due to an unforeseen leakage of combustible gas

  • Individual protection means

  • Sea vessels, vessels of inland and mixed (river-sea) navigation, mobile offshore platforms and drilling platforms for operation in sea and inland waters, other floating facilities, as well as machines used on them and
    equipment

  • Public transport vehicles intended for the carriage of passengers and goods by air, land, rail or water transport;

Required documentation for compliance confirmation:

  • Instruction manuals 

  • Ignition risk assesment

  • Analysis of the state of production facilities with accredited inspector (if batch certification, not necessary)

  • Samples of equipment to be tested in laboratory

  • List of all electric components

  • Drawings, electric schemes confirming Ex-proof safety of equipment

According to the Technical Regulation TR CU 012 it is necessary to carry out Inspection control every year during validity of certificate for series production

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