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ATEX Directive
Atex Compliance
We list below the main areas associated with the Classification of
Equipment under the ATEX Directives to assist you in identifying your requirements
Equipment
Group I Category M1 Underground Use
Equipment designed, and, where necessary, equipped
with additional special means of protection affording a very high level of protection.
For use in underground parts of mines as well as those parts of surface installations
endangered by fire damp and/or combustible dust
Must remain functional, even in the
event of rare incidents relating to equipment even with an explosive atmosphere present
and is characterized by means of protection such that either, in the event of failure
of one means of protection, at least an independent second means provides the requisite
level of protection; or the requisite level of protection is assured in the event
of two faults occurring independently of each other
Equipment Group I Category M2
Underground Use
Equipment designed Affording a high level of protection
For use in underground parts of mines as well as those parts of surface installations
endangered by fire damp and/or combustible dust
Equipment in this category is intended
to be de-energized in the event of an explosive atmosphere being present
Characterized
by means of protection such that equipment in this category
Assure the requisite level
of protection during normal operation and Where more severe operating conditions
occur, in particular those arising from rough handling and changing environmental
conditions
Equipment Group II Category 1 Non-Mining Applications
Equipment designed must be capable
of functioning with a very high level of protection
Equipment in this category is intended for use in areas in which explosive atmospheres
caused by mixtures of air and gases, vapours or mists or by air/dust mixtures are
present continuously, for long periods or frequently
Must ensure the requisite level
of protection, even in the event of rare incidents relating to equipment.
Characterized
by means of protection such that:
Either, in the event of failure of one means of
protection, at least an independent second means provides the requisite level of
protection; or
The requisite level of protection is assured in the event of two faults
occurring independently of each other
Equipment Group II Category 2 Non-Mining Applications
Equipment
designed must be capable of functioning with a high level of protection.
Equipment in this category is intended for use in areas in which explosive atmospheres
caused by gases, vapours, mists or air/dust mixtures are likely to occur
Characterized
by means of protection such that:
Ensures the requisite level of protection, Even
in the event of frequently occurring disturbances or Equipment faults which normally
have to be taken into account
Equipment Group II Category 3 Non-Mining Applications
Equipment
designed must be capable of functioning ensuring a normal level of protection
Equipment in this category is intended for use in areas in which explosive atmospheres
caused by gases, vapour, mists, or air/dust mixtures are unlikely to occur or, if
they do occur, are likely to do so only infrequently and for a short period only
Equipment
in this category ensures the requisite level of protection during normal operation