8 192-550004N2 ETH ATEX November 2013
1.3.3. Zone classification / device categories
The table below describes the zones of an installation, where potentially explosive
atmospheres may occur. The proprietor must analyze and assess the area, where
explosive gas/dust mixes may occur and, if necessary, subdivide them into
individual zones. This zone classification permits to select suitable machinery and
equipment which can be used in this area.
Suitable machinery and devices
Presence of potentially
explosive atmospheres
Area of application
(not mining)
Permanently, often, for a
long period
approx. > 1000 h / year
occasionally
approx. 10 ... 1000 h / year
rarely, for a short period, in
the event of an error
approx. < 10 h / year
* Equipment for use in areas (except underground in mining) which might be
dangerous due to an explosive atmosphere.
Example:
To Next Page
Loading...
