DRIVE SOLUTIONS TRASCO GRB Series, User And Maintenance Manual

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www.sitspa.com TRASCO ® - User and Maintenance Manual
114.02 - Rev. 2 - 2
nd
March 2020 Approved by: SIT S.p.A.
25
5 ATEX Annex
5.1 ATEX zone classification
This Annex is an integral part of the sale of the SIT TRASCO
®
coupling according to the ATEX Directive 2014/34/EU, contains the
Declaration of Conformity, and, therefore, is delivered together with the coupling.
The User and Maintenance Manual, may be downloaded in electronic format on the website
www.sitspa.com .
The analysis of the coupling machining process was carried out by SIT S.p.A.
Below is the cross reference between hazardous zones, substances and categories according to the ATEX Directive 2014/34/EU.
CAUTION!
These instructions must be complied with in addition to the
warnings provided in the technical specifications.
SUBSTANCE ZONE ZONE DESCRIPTION ATEX CATEGORY/MARKING EPL
GASES, VAPOURS, MISTS
Zone 0
A place in which an explosive atmosphere,
consisting of a mixture with air of dangerous
substances in the form of a gas, vapour or
mist, is present continuously or for long
periods or frequently (>1000 hours/year).
1G Ga
Zone 1
A place in which an explosive atmosphere,
consisting of a mixture of air of dangerous
substances in the form of a gas, vapour or
mist, is likely to occur in normal operation
occasionally (10 - 1000 hours/year).
2G or 1G Gb or Ga
Zone2
A place in which an explosive atmosphere,
consisting of a mixture of air of dangerous
substances in the form of gas, vapour
or mist, is not likely to occur in normal
operation but, if it does occur, will persist
for a short period only (<10 hours/year).
3G, 2G or 1G Gc, Gb or Ga
DUSTS
Zone 20
A place in which an explosive atmosphere, in
the form of a cloud of combustible dust in air
is present continuously or for long periods or
frequently (>1000 hours/year).
1D Da
Zone 21
A place in which an explosive atmosphere,
in the form of a cloud of combustible dust
in air, is likely to occur in normal operation
occasionally (10 - 1000 hours/year).
2D or 1D Db or Da
Zone 22
A place in which an explosive atmosphere, in
the form of a cloud of combustible dust in air,
is not likely to occur in normal operation but,
if it occurs, will persist for a short period only
(<10 hours/year).
3D, 2D or 1D Dc, Db or Da
Table 5.1 - ATEX zone classification