
11
Appendix
Operation and maintenance instructions for forced cooling fan /VE with part number groups 2097... and
2098...
Operating Instructions – EDR..71 – 315, EDRN63 – 315
238
11.5
Operation and maintenance instructions for forced cooling fan /VE with part
number groups 2097... and 2098...
ATEX_IECEx_BA_08052017_EN.docx
1 of 6
OPERATING AND MAINTENANCE INSTRUCTIONS
WISTRO EXPLOSION-PROTECTED EXTERNAL FAN UNITS for use in dust or gas explosion hazard areas
SERIES FLAI size 63
–
250
The standards applicable to these operating instructions can be found in the applicable COC.
For ATEX areas DIN EN standards are used, for IECEx areas IEC standards.
Zone division and assignment of Wistro external fans by category and protection level
Zone
Duration of presence of the
explosive atmosphere
Device
category
Device protection
level EPL
Gases, vapours,
mists
2
rare
3G
Gc
Dusts
22
rare
3D
Dc
IECEx zone 22/2 approval
Ex ec IIC T3 Gc
Devices of the group IIC and IIIC for use in the remaining explosive areas
Ex tc IIIC T120 °C Dc
(above ground) for zone 2 and 22
IEC 60079-7
Type of ignition protection: ec, non-sparking equipment
Group:
IIC, group IIC gases
Temperature class:
T3
EPL:
Gc
IEC 60079-31
Type of ignition protection: tc, protection with housing
Group:
IIIC, conductive dust
Temperature class:
T=120 °C
EPL:
Dc
ATEX 3D/3G approval
II 3G Ex ec IIC T3 ec
Devices of the group IIC and IIIC for use in the remaining explosive areas
II 3D Ex tc IIIC T120 °C Dc
(above ground) for category 3D/3G
DIN EN 60079-7
Type of ignition protection: ec, non-sparking equipment
Group:
IIC, group IIC gases
Temperature class:
T3
EPL:
Gc
DIN EN 60079-31
Type of ignition protection: tc, protection with housing
Group:
IIIC, conductive dust
Temperature class:
T=120 °C
EPL:
Dc
25896334/EN – 06/2019
Содержание EDR200
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