Fuel
Dispensers
TATSUNO
EUROPE
‐
Installation
and
User
Manual
,
revision
10,
January
2022
93
3.3.2.
INSTALLATION
OF
THE
DISPENSERS
IN
TERMS
OF
EXTERNAL
INFLUENCES
(DANGER
ZONES)
Dispensers
for
liquid
(petrol,
diesel,
LPG)
or
gaseous
fuel
(CNG)
create
dangerous
areas
at
the
installation
site
‐
zones
where
under
certain
conditions
(high
surface
temperature,
flame,
electric
spark…
etc.)
the
fuel
or
fuel
vapor
could
ignite
or
explode.
Before
installing
the
dispenser
at
the
filling
station,
the
following
must
be
taken
into
account
in
particular:
what
danger
zones
the
dispenser
creates
with
its
operation
what
danger
zones
are
created
by
the
surrounding
equipment
(adjacent
dispenser,
storage
tank,
etc
…)
Hazardous
areas
(zones,
areas
with
a
risk
of
explosion)
are
determined
according
to
EN
60079
‐
10.
For
dispensers
for
liquid
fuels
such
as
petrol,
diesel,
E85,
kerosene,
aviation
gasoline,
etc.,
the
dispenser
zones
are
also
regulated
by
the
EN
13617
‐
1
standard,
for
LPG
dispensers,
liquefied
propane
butane,
the
EN
14678
‐
1
standard.
Drawings
of
the
zones
created
by
the
dispenser
are
part
of
the
mandatory
documentation
of
the
dispenser
manufacturer,
see
documents
IN041
‐
ML
Installation
plans
I
and
IN043
ML
Installation
plans
II
.
The
drawing
of
the
zones
must
define
the
spatial
distribution
of
the
hazardous
areas
inside
and
outside
the
dispenser
‐
see
the
example
in
the
figure
below,
where
hazardous
zone
2
(simply
hatched)
occurs
up
to
a
distance
of
20
cm
vertically
and
5
cm
horizontally
from
the
contour
of
the
dispenser.
Inside
the
dispenser,
in
addition
to
the
meter
housing,
there
is
zone
1
or
zone
0
(inside
the
vapour
recovery
pipes).
All
electrical
and
non
‐
electrical
equipment
located
in
these
zones
must
be
designed
and
approved
for
this
hazardous
environment
(ATEX
certificate,
documentation
archiving…).
Picture
69
–
Example
of
drawing
the
danger
zones
of
the
OCEAN
TOWER
dispenser
according
to
EN
13617
‐
1
(5
‐
non
‐
explosive
area)
