Pipe Design
TITANUS
SUPER·SENS
®
4 –
42
Data: 02/09
TSS_04_A-en-e
4.4
Mains
supply
The alarm-ready status in the fire protection system and the aperture of
an alarm are taken into account when rating the external mains supply.
In the system's alarm-ready status, the mains supply must supply
standby current to the air sampling smoke detection systems and ensure
that the emergency power batteries are charging in accordance with
DIN VDE 0833 Part 1.
19F
20
The following formulae apply in the event of an alarm:
Current
calculation
The current in the event of an alarm is calculated using the following for-
mula:
Room Protection
.
max
,
sup
max
max.
,
)
(
ply
power
area
quiescent
area
alarm
room
total
I
n
n
I
n
I
I
≤
−
+
⋅
=
Equipment Protection
power
quiescent
alarm
equipment
total
I
n
n
I
n
I
I
.
max
)
(
≤
−
+
⋅
=
The power for charging the batteries is calculated as follows:
Charging
Current
24
8
,
0
min
arg
al
no
ing
ch
K
I
⋅
≈
max.
y,
powersuppl
charging
quiescent
equipment
total
I
I
n
I
I
≤
+
⋅
=
,
I
total
= total power supply of all connected air sampling systems in [A]
I
powersupply, max.
= max. supply current of the power supply unit in [A]
n = total number of all air sampling systems connected to a power supply
unit
n
max area
= total number of all air sampling systems in the area with the highest
power consumption
I
alarm
= alarm current of an air sampling system in [A]
I
quiescent
= quiescent current of an air sampling system in [A]
K
nominal
=
nominal capacity of the batteries in [
Ah]
I
charging
= charging current of batteries (within 24h 80% of nominal capacity in [A]
The calculated total current (
I
ges
) with the highest value is used for the
configuration of the power supply units!
The power consumption of TITANUS
®
is listed in chapter 3, "Technical
Data".
20
80% load in 24 hours
INSTRUCTION