Introduction to ATEX certification:

In 2014, the European Union issued the new ATEX (Equipment for explosive atmospheres) directive 2014/34/EU, which was officially implemented on April 20, 2016, replacing the old directive 94/9/EC.

The 2014/34/EU Explosion proof ATEX Directive covers mining and non mining equipment. Unlike previous directives, it includes mechanical and electrical equipment, various explosion-proof electrical equipment, protection systems, safety instruments, control instruments, and regulating devices, etc., extending potential explosive hazardous environments to dust, flammable gases, flammable vapors, and mists in the air. It specifies the application technical requirements, basic requirements, safety requirements, and necessary qualification assessment procedures for equipment used in potentially explosive environments before it is placed on the European market within its scope of use.

The ATEX 2014/34/EU directive classifies equipment into three categories based on the level of protection of the installed equipment:

Category 1- Very high level of protection

Category 2- High Protection Level

Category 3- Normal level of protection

ATEX certification scope of application:

The ATEX certification is applicable to a wide range of equipment, including fixed offshore platforms, petrochemical plants, flour mills, and other potentially explosive environments.

The products involved in ATEX certification include electrical equipment and non electrical equipment

(1) Electrical equipment: including electronic components, devices used for generating, storing, distributing, and converting electrical energy, or control devices that convert electrical energy into energy

(2) Non electrical equipment: refers to equipment that only has mechanical motion, and these moving parts will generate ignition sources (such as hot surfaces, friction sparks, etc.). Common non electrical equipment includes gearboxes, fans, compressors, brakes, mixers, etc.

ATEX explosion-proof certification standard:

EN60079-0 Explosive Atmosphere Part 0: General Requirements for Equipment

2. EN60079-1 Explosive Atmosphere Part 1: Equipment Protected by Flameproof Enclosures "d"

3. EN60079-2 Explosive Atmosphere Part 2: Equipment Protected by Positive Pressure Shell Type "p"

4. EN60079-5 Explosive Atmosphere Part 5: Equipment protected by sand filled mold "q"

5. EN60079-6 Explosive Atmosphere Part 6: Equipment Protected by Oil Immersed Type "O"

6. EN60079-7 Explosive Atmosphere Part 7: Equipment Protected by Increased Safety Type "e"

7. EN60079-11 Explosive Atmosphere Part 11: Equipment Protected by Intrinsic Safety Type "i"

EN60079-15 Explosive Atmosphere Part 15: Equipment Protected by Non Spark Type "n"

9. EN60079-18 Explosive Atmosphere Part 18: Equipment Protected by Sealed Type "m"

10. EN61241 series standard electrical equipment for flammable environments

11. ISO/IEC 80079-34 Explosive Atmosphere Part 34: Application of Equipment Manufacturer's Quality Assurance System

For specific questions, please consult Zealous Cert Central Certification

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