Evaluation of the risk of ignition based on DIN EN ISO 80079-36:2016-12
PROCEDURE NUMBER --- (cross-project)
MANUFACTURER
TEKA Absaug- und Entsorgungstechnologie GmbH
Millenkamp 9
D-48653 Coesfeld
DEVICE TYPE LFE, version ST1 DEVICE GROUP II
DEVICE DESCRIPTION The construction and intended use of the device are described in separate documentation (see Operating Instructions)
1 2 3 4
RISK OF IGNITION
EVALUATION OF FREQUENCY OF OCCURRENCE WITH
NO ADDITIONAL MEASURES EMPLOYED
MEASURES EMPLOYED TO PREVENT EMERGENCE
FREQUENCY OF OCCURRENCE INCLUDING
MEASURES
a b
a b c d
e a b c a b c d
e f
Seq. No.
POTENTIAL IGNITION
SOURCE
CAUSE
(Under what
circumstances does the
risk of ignition occur?)
IN NORMAL OPERATION
WHEN MALFUNCTION EXPECTED
ON INFREQUENT MALFUNCTION
NOT RELEVANT
REASON DESCRIPTION
BASIS
(standards,
technical
regulations,
experimental
results)
Technical
Documentation
(incl. the relevant
properties listed in
column 1)
IN NORMAL OPERATION
WHEN MALFUNCTION EXPECTED
ON INFREQUENT MALFUNCTION
NOT RELEVANT
RESULTING EPL FOR THIS IGNITION
HAZARD
NECESSARY RESTRICTIONS
1
Flames and hot
gases/particles
Flames/hot gases are
introduced into the raw
gas area via the pipeline
x
Process-related or error-related
occurrence at the extraction
point
Penetration into the filter must be excluded
by the Operator.
TRGS 723 5.3 / DIN
EN 80079- 36 6.3
Restriction to
Intended Use.
Warning sections in
chapter 2.3 and 8.2
of the Operating
Instructions
x
Dc
2
Mechanically generated
sparks
Mech. generated sparks
are introduced into the
raw gas area via the
pipeline
x
Process-related or error-related
occurrence at the extraction
point
Penetration into the filter must be excluded
by the Operator.
TRGS 723 5.4 / DIN
EN 80079- 36 6.4
Restriction to
Intended Use.
Warning sections in
chapter 2.3 and 8.2
of the Operating
Instructions
x
Dc
3 Electrical equipment
Magnet valves in the
cleaning area
x
Magnet valves are a possible
source of ignition
Only use devices that comply with the
requirements for the defined ATEX zone
and have the appropriate dust-related
characteristic values. Here ATEX II 3D Ex tc
IIIC T130 °C Dc
Filter breakage monitoring by means of
differential pressure monitoring for the
filter class H13 safety filter
TRGS 723 5.5 / IEC
60079-26
Suitability based on
CE certificate
NORGREN /
Buschjost
diaphragm 8176
x Dc
4
Stray currents, cathodic
corrosion protection
Return currents, lightning
strike, earth fault
x
External sources can result in
compensating currents that
may cause ignition.
All housing parts that are in contact with
dust are earthed
- TRGS 723 5.6.2
- DIN EN 80079-36
6.6.2
Confirm earthing
measures in
earthing report
x
Da
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