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Atex Products

The Directive entered into force on 1 March 1996 and became mandatory on 1 July 2003 for all European Union countries, and imposes the ATEX certification to all products sold in the same installed in places where explosive hazard.


ATEX (ATmosphéres and EXplosibles) is the conventional name of Directive 94/9/EC of the European Union for the regulation of equipment intended for use in potentially explosive atmospheres.


Classification of areas according to ATEX Directive 99/92/EC, installations in hazardous areas for explosive gases, vapors, mists or combustible dusts under the following codes: EN60079-10-1 (formerly EN60079-10 for gases, vapors, mists), EN60079-10-2 (EN61241-10 for dust Ex), CEI 31-35 and CEI 31-56 guides, codes, IP (Institute of Petroleum), NEC 505.

Checks, inspections and surveys according to EN60079-14, EN60079-17 (Electrical and inspections, maintenance in potentially explosive gas, vapor and mist) and according to EN61241-14, EN61241-17 (Electrical and inspections, maintenance in potentially explosive dust).

The Directive entered into force on 1 March 1996 and became mandatory on 1 July 2003 for all European Union countries, and imposes the ATEX certification to all products sold in the same installed in places where explosive.


The Directive distinguishes the risk according to the nature of the dangerous product and according to the ignition temperature of the product itself. Are then classified:


A group, defined according to the explosive product
  • I The Mines
  • II Industrial Area
  • IIA Propane
  • IIB Ethylene
  • IIC Hydrogen - Acetylene

Class A, defined according to the ignition temperature

  • T1 450 °C
  • T2 300 °C
  • T3 200 °C
  • T4 135 °C
  • T5 100°C
  • T6 85 °C

CLASSIFICATION OF DANGEROUS AREAS IN EUROPE FOR THE PRESENCE OF GAS

  • Zone 0 - An area in which a mixture of gas is always present
  • Zone 1 - An area in which a mixture of explosive gas may be present during the normal operation
  • Zone 2 - An area in which a mixture of gases is not normally present, and if it is it is only for short periods of time

CLASSIFICATION OF DANGEROUS AREAS IN EUROPE FOR THE PRESENCE OF DUST

  • Zone 20 - An area in which a mixture of dust is constantly present
  • Zone 21 - An area in which a mixture of explosive powder may be present during the normal operation
  • Zone 22 - An area in which a powder mixture is not normally present, and if it is it is only for short periods of time

EXAMPLES TYPES OF PROTECTION

  • Ex-d - flameproof enclosure
  • Ex-i - intrinsic safety
  • Ex-e - increased safety
  • Ex-p - internal overpressure