KAPPA V ECHOS AC IOM.pdf - Industrial Air

4.3 RISKS CAUSED BY EXPLOSIVE ATMOSPHERES
Direction of rule 1999/92/CE
Security and health of workers in the work area. Rules for explosive atmospheres connected with rule ATEX 94/
9/CE - DPR 23/3/98 n.126s
It is forbidden to install the unit:
- In explosive atmospheres.
(A mixture of air, under atmospheric conditions, with inflammable substances in the form of gas, vapours,
mist or dust, in which, after ignition, combustion is propagated into the whole unburnt mixture).
- In areas exposed to risk of explosion.
(An area where a dangerous explosive atmosphere could occur and requires particular protective measures to
protect the safety and the health of the workers involved).
- In presence of inflammable or combustible substances
(Substances that can create an explosive atmosphere, unless their characteristics does not allow that their
mixture with the air does not autonomously propagate an explosion).
- Install the unit in the following zones:
- Zone 2
(Area in which, during normal activity, the likely formation of an explosive atmosphere, made by a mixture
of air and inflammable substances in the form of gas, vapour or mist, is not probable. Should this explosive
atmosphere be created, would be for a short period.
- Zone 22
(Area in which during normal activities the likely formation of an explosive atmosphere in the form of a cloud of
combustible dust is not probable. Should this explosive atmosphere be created, would be for a short period.
- It is forbidden to install the unit in the following zones:
- Zone 0
(Area where there is a constant presence, or for long periods, an atmosphere consisting of a mixture of air and
inflammable substances in the form of gas, vapour or mist).
- Zone 1
(Area in which, during normal activities, it is possible that an explosive atmosphere, consisting of a mixture of air
and inflammable substances in the form of combustible dust in the air, can be formed).
- Zone 20
(Area in which there is a constant presence, or for long periods, an explosive atmosphere consisting of a combustible
dust in the air).
- Zone 21
(Area in which, during normal activities, the creation of an explosive atmosphere, consisting of a combustible dust
in the air, could occasionally occur).
4.4 RISKS DUE TO EQUIPMENT USED IN A POTENTIALLY EXPLOSIVE ATMOSPHERE
Prescription Directive ATEX 94/9/CE - DPR 23/3/98 n.126s
Rules for devices and protective systems used in potentially explosive atmosphere
The unit is classified to Category 3
(Includes products designed to operate according to manufacturers’ operational parameters and guarantees a
normal level of protection for their designed use, in environments with a rare probability or for brief periods,
where an explosive atmosphere, due to gas, vapours, mist or mixtures of air and dusts, can occur).
Blue Box 20