Explosion-proof equipment(EX equipment)includes electrical and non-electrical equipment as well as machines for use in potentially explosive environments,the construction of which prevents an explosion or a fire due to the operation.
EAC EX certification
The EX certificate is an official confirmation that the machine meets the Technical Requirements for explosion-proof equipment in Russia and the EAEU of Belarus,Kazakhstan,Armenia and Kyrgyzstan.All explosion-proof equipment and machines,including those that contain EX components are subject to EAC EX certification.This excludes:
medical technology
devices which can explode when explosive substances and unstable chemical compounds are present
household appliances
personal protective equipment
seagoing vessels and barges,mobile offshore platforms and oil rigs
air,road,rail or water vehicles
nuclear weapons and nuclear research facilities
EX equipment is divided into three groups:
Group I-equipment for mines,quarries and ore processing plantsGroup II-equipment for use in areas exposed to gas,other than underground mining
Group III-equipment for use in areas subject to explosion hazard due to dust exposure,other than underground mining
Each group is subdivided into three protection levels of the explosion protection A,B and C,as well as six classes of fire protection.
Legal framework
Until 15 February 2013,the EX certificate of conformity in Russia was carried out in accordance with the GOST standards from the Soviet Union.The GOST certificate was used as an EAC EX certificate of conformity.As a result of the coordination of the Technical Regulation in the EUEA between Russia,Belarus,Kazakhstan,Armenia and Kyrgyzstan,the entry into force of the Technical Regulation TR CU 012/2011"On safety of the equipment for operation in explosive atmospheres"applies new EAC certification rules.Since the reform,the certification of the explosion-proof equipment has been carried out exclusively in the form of EAC certification.The EAC declaration for the explosion-proof equipment is not provided.
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