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CEA 4001 - Sprinkler Thermal Sensitivity; Sprinkler Guards

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88
given
to
the
rating
of
sprinklers
in
the
vicinity
of
drying
ovens,
heaters
and
other
equipment
which
gives
off
radiant
heat.
NOTE
:
sprinklers
are
colour
coded
to
indicate
their
temperature
rating
as
follows
:
Bulb
°C
Fusible
link
°C
Orange
57
-
-
Red
68
Uncoloured
57-77
Yellow
79
-
-
Green
93-100
White
80-107
Blue
121-141
Blue
121-149
Mauve
163-182
Red
163-191
Black
204/260
Green
204-246
Orange
260-302
Black
320-343
12.5 Sprinkler Thermal sensitivity
12.5.1 General
Sprinklers
of
different
sensitivities
shall
be
used
in
accordance
with
table
26.
T
Table 26: Sprinkler sensitivity ratings
Sensitivity
rating
in-rack
Ceiling
above
in-
rack
sprinklers
Dry
systems
All
others
Standard
’A’
No
Yes
Yes
Yes
Special
No
Yes
Yes
Yes
Quick
Yes
Yes
No
Yes
NOTE
1:
the
sprinkler
at
the
ceiling
shall
have
a
sensitivity
equal
to
or
of
slower
response
than
the
sprinkle
situated
in
the
racks.
NOTE
2:
most
types
of
sprinklers
are
rated,
in
descending
order
of
sensitivity,
as
one
of
the
following
types
-
quick
response;
-
special
response;
-
standard
response
‘A’.
The
sprinkler
sensitivities
ratingare
specified
in
EN
12259
part
1.
12.5.2 Buildings with automatic smoke venting systems
Smoke
vents
shall
be
operated
only
manually,
or
else
the
sprinkler
heads
shall
be
selected
so
as
to
operate before
the
smoke
vents
open.
12.6 Sprinkler guards
When
sprinklers,
other
than
ceiling
or
flush
sprinklers,
are
installed
in
a
position
at
risk
of
mechanical damage,
they
shall
be
fitted
with
a
suitable
metal
guard.

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