Description; Identifi Cation - SystemAir AW 355 D4-2-EX Montage- Und Betriebsanleitung

5

Description

With a view to the selection of materials, the EX fans fulfi l the requirements of Standard DIN EN 14986 (Construction of
fans for use in explosion-capable areas) as a result of specifi c protective measures in the area of possible contact sur-
faces between rotating and stationary components (rotor/admission nozzle)
5.1 Identifi cation
Example
II 2G c Ex e IIB T3 Gb Sira 07ATEX6341X
0820
CE sign
0820 Notifi ed offi ce (quality assurance system)
Device certifi ed for Ex area
II Device group (here: use above ground)
2G Device category and classifi cation (G = gas, D = dust)
c Kind of ignition protection „c" = constructive safety (not electric)
Ex e Kind of ignition protection („d" = pressure-proof encapsulation, „e" increased safety, „nA" =
not sparking)
IIB Groups
T3 Temperature class
Gb EPL (Equipment Protection Level)
Sira 07ATEX6341X EC type test certifi cate number
Table 1: Identifi cation
Designation
Device group II
Device category/ „2G"
classifi cation
„3G"
Table 2: Identifi cation
44
All areas with explosive atmosphere except mining industrie under-
ground and on the surface at mine gases.
2 Category 2 / zone 1 / high safety Devices of this category are inten-
ded for use in areas in which it can be expected that an explosion-
capable atmosphere of gases, vapours, mists occasionally occurs.
3 Category 3 / zone 2 / normal safety / Devices of this category are
intended for use in areas in which it cannot be expected that an
explosion-capable atmosphere occurs as a result of gases, vapours,
mists, but if it does occur, then in all probability only rarely and for a
short period of time.
G Gases/vapours/mists