VERDER VERDERFLEX Dura D7 Instruction Manual page 10

Ignition Hazard
Description / Basic
Potential Cause (which causes
Ignition originate
Source which ignition
hazard)
Electrical – Electric motor inside the
Equipment assembly
Stray Electrical,
Currents and
Cathodic Cor-
rosion
Protection
– Static build up generat-
ing spark
Static Electricity
– Static build up generat-
ing spark
Lightning – Lightning strike
Electromag-
netic Waves
Ionising Radia-
– Use in radioactive area
tion
High Frequency
Radiation
Ultrasonics
Adiabatic
Compression
– Impact
– Hose burst
Mechanical
strength
– Housing vent blocked
– Dust collection on
horizontal surfaces
Table 9 Ignition Protection (continued)
ATEX Instruction Manual
Dura 05-55
Measures Applied to Prevent the Ignition Source Becoming Effective
Reason for Description of the Measure
Assessment
Electrical equip-
u Only electrical equipment with
ment is a pos-
certification of conformity is
sible ignition
used
source
u No stray currents or cathodic
corrosion
Hose u Static dissipative
Plastic window,
potential risk
during cleaning u Apply Cat 3 restrictions, if Cat
a static build up 2 needed then change mate-
may occur. No
rial of the window.
charging during EN13463-1:2009, 6.7.3
normal opera-
tion.
u End user to assess and pro-
tect equipment accordingly
u Not relevant
u Not relevant, not approved for
use in radioactive area
u Not relevant
u Not relevant
u Not relevant
Potential impact u Main housing cast iron, no
from other aluminium or similar to the
source, falling external, plastic window front
object, been
mounted but of a thickness to
struck by mov- withstand impacts up to 7Nm
ing object. see tests
Pressure in cas-
ing too high. u Use the Verder recommended
Occluded pump ATEX rated hose burst sensor
discharge
Pressure in cas-
u Clean regularly
ing too high.
u Unlikely on pump casing be-
cause of its geometry
May cause over
u Regular maintenance to help
temperature.
ensure all surfaces remain
clean
Version 1.0v-07/2019
Basis Citation of
Applied
Technical Rules
IEC 60079 series
EN 80079-36:2016 6.7.5
EN 80079-36:2016 10
EN 80079-36:2016 10
EN 80079-36:2016 8.3.1
EN 80079-36:2016 10
EN 80079-37:2016 5
EN 80079-37:2016 6
EN 80079-36:2016 10
EN 80079-36:2016 10
Standard
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