EasyManua.ls Logo

CEA 4001 - Page 20

Default Icon
190 pages
Save Page as PDF
Print Icon
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Loading...
20
installation.
a
alarm
valve,
pre-action
An
alarm
valve
suitable
for
a
pre-action
installation.
alarm
valve,
wet
An
alarm
valve
suitable
for
a
wet
installation.
area
of
operation
The
maximum
area
over
which
it
is
assumed,
for
design
purposes,
that
sprinklers
will
operate
in
a
fire.
area
of
operation,
hydraulically
most
favourable
The
location
in
a
sprinkler
array
of
an
area
of
operation
of
specified
shape
at
which
the
water
flow
is
the
maximum
for
a
specific
pressure.
area
of
operation,
hydraulically
most
unfavourable
The
location
in
a
sprinkler
array
of
an
area
of
operation
of
specified
shape
at
which
the
water
supply
pressure
is
the
maximum
needed
to
give
the
specified
design
density.
arm
pipe
A
pipe
less
than
0,3m
long,
other
than
the
last
section
of
a
range
pipe,
feeding
a
single
sprinkler.
authorities
The
fire
insurers
and
other
organisations,
officers
or
individuals
responsible
for
approving
sprinkler
systems,
equipment
and
procedures,
e.g.
the
fire
and
building
control
authorities,
the
local
water
authority
or
other appropriate
public
authorities.
'B'
gauge
A
pressure
gauge
connected
to
and
on
the
same
level
as
an
alarm
valve,
indicating
the
pressure
on
the
upstream
side
of
the
valve.
booster
pump
An
automatic
pump
supplying
water
to
a
sprinkler
system
from
a
gravity
tank
or
a
town
main.
'C'
gauge
A
pressure
gauge
connected
to
and
on
the
same
level
as
an
alarm
valve,
indicating
the
pressure
on
the
downstream
side
of
the
valve.
control
valve
set
An
assembly
comprising
an
alarm
valve,
a
stop
valve
and
all
the
associated
valves
and
accessories
for
the
control
of
one
sprinkler
installation.
design
density
The
minimum
density
of
discharge,
in
mm/min
of
water,
for
which
a
sprinkler
installation
is
designed,
determined
from
the
discharge
of
a
specified
group
of
sprinklers,
in
litres
per
minute,
divided
by
the
area covered,
in
square
metres.
design
point
A
point
on
a
distribution
pipe
of
a
precalculated
installation,
downstream
of
which
pipework
is
sized
from
tables
and
upstream
of
which
pipework
is
sized
by
hydraulic
calculation.
detector
sprinkler
A
sealed
sprinkler
mounted
on
a
pressurized
pipeline
used
to
control
a
deluge
valve.
Operation
of
the

Table of Contents