GROUPS

SELECTION OF EQUIPMENT GROUPS

Gases, vapours and dusts are subdivided into various groups according to their characteristics, which are assigned to individual material groups, that are designed for correct selection of equipment. The equipment groups therefore describe the level of protection and the application range of the equipment.

CLASSIFICATION IN ACCORDANCE WITH DIRECTIVE 2014/34/EU (ATEX)

Equipment Group I applies to equipment intended for use in underground parts of mines as well as parts of surface installations of mines susceptible to firedamp and/or combustible dusts. This equipment group is subdivided into the categories M1 and M2.

Equipment Group II applies to equipment intended for use in other industries susceptible to explosive gas or dust atmospheres. Depending on the occurrence of a hazardous atmosphere, the Equipment Group II is subdivided into categories 1, 2 and 3 and is marked according to the explosive gas (G) or dust (D) atmosphere.

In addition, electrical equipment in Group II (Gas) is, subdivided into Groups IIA (Propane), IIB (Ethene) and IIC (Hydrogen).

CLASSIFICATION IN ACCORDANCE WITH IEC 60079-0

In 2007, the IEC 60079-0 international standard divided Group II again, into the following three equipment groups:

Group I: Equipment for mines susceptible to firedamp
Group II: Equipment for all potentially explosive gas atmospheres except for mines susceptible to firedamp
Group III: Equipment for potentially explosive dust atmospheres except for mines

The equipment in Group III is intended for use in potentially explosive dust atmospheres. Electrical equipment in Equipment Group III is subdivided according to the type of dust into Groups IIIA (combustible flyings), IIIB (non-conductive dust) and IIIC (conductive dust).

GROUPS

SELECTION OF EQUIPMENT GROUPS

CLASSIFICATION IN ACCORDANCE WITH DIRECTIVE 2014/34/EU (ATEX)

CLASSIFICATION IN ACCORDANCE WITH IEC 60079-0

What you need to know about Exproof.

PIONEERING EXPLOSION PROTECTION

EX-PROOF TECHNICAL PRINCIBLES

STATUTORY MANDATES AND STANDARDS

IEC TC 31 COMMITTEE AND ITS WORK

Get in touch now and let's determine what you need
for your project together.

GROUPS

SELECTION OF EQUIPMENT GROUPS

CLASSIFICATION IN ACCORDANCE WITH DIRECTIVE 2014/34/EU (ATEX)

CLASSIFICATION IN ACCORDANCE WITH IEC 60079-0

What you need to know about Exproof.

PIONEERING EXPLOSION PROTECTION

EX-PROOF TECHNICAL PRINCIBLES

STATUTORY MANDATES AND STANDARDS

IEC TC 31 COMMITTEE AND ITS WORK

Get in touch now and let's determine what you need for your project together.

Get in touch now and let's determine what you need
for your project together.