Zeta PREMIER EX8, Инструкция по эксплуатации

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Extinguishing Panel - INSTRUCTION MANUAL
Approved Document No: GLT.MAN-124
PAGE 25
Issue : 1 Author: NRPJ Date: 15/11/2007
Battery Calculation
Here is the current consumption of the Premier EX8 panels in various conditions:-
Control Panel
Model
Mains Fail,
buzzer
sounding Mains Fail,
buzzer
silenced Mains fail,
panel in
alarm Mains fail,
panel in 2
nd
stage alarm
Premier EX8 Panel 160mA 140mA 200mA 350mA(420pk)
Sample Calculation
A Premier EX8 4 zone panel has the following items connected:-
Zone 1: 8 x Optical detector
Zone 2: 7 x Optical detector
Zone 3: 3 x MCP, 9 x Optical, 1 x heat detector
Zone 4: 1 x MCP, 10 x Optical, 3 x heat detector
First stage Sounder CCT : 10 x Maxitone sounder
First stage Sounder CCT: 1 x Megatone sounder
ITEM QUIESCENT ALARM
PREMIER EX8 160mA 200mA (350 for 2
nd
stage)
MCP 0mA 40mA
OPTICAL 100uA
40mA
HEAT 50uA 40mA
MAXITONE SOUNDER
0mA 25mA
Megatone Sounder 0mA 250mA
To calculate the required battery backup required, we use the equation:-
Battery Size (Standby time in Amp Hours) = 1.25 x [(T
ALM
x I
ALM
) + (T
SBY
x I
SBY
)]
Where:
T
ALM
= Maximum time in hours required for the alarm [½ hour is most common time]
I
ALM
= Total Alarm Current in amps for all alarm devices connected to the alarm circuits
T
SBY
= Standby time in hours for the system after mains failure [normally 24, 48 or 72 hr]
I
SBY
= Quiescent current in amps of control panel in fault condition [because of mains failure] PLUS all
detection zones.
.
Consider a 1
st
stage alarm
I
ALM
=
PREMIER EX8 ALM + 10 x MAXITONE
ALARM + 1 x DETECTOR ALM + 4 x MCP QU
+ 33 x OPT QU + 4 x HT QU
=0.2 + 10x 0.025 + 1x 0.040 + 4x0 + 33x0.0001 +
4x0.00005
=0.2+ 0.25 + 0.04 + 0 + 0.0033 + 0.0002
= 0.494 Amps
I
SBY
= PREMIER EX8 QU+10xMAXITONE QU + 7 x
MCP QU + 34 x OPT QU + 4 x HT QU
=0.160+10x0+7x0+34x0.0001+4x0.00005
=0.160 + 0 + 0 + 0.0034 + 0.0002
= 0.1636 Amps
Therefore:-
Battery size
= 1.25 X ((0.5x 0.494)+(24x0.1636))
= 1.25 X (0.247 + 3.9264)
= 1.25 x 4.1734
= 5.22 Ah
So 7.0 Ah batteries will be suitable for this
installation
Consider a 2
nd
stage alarm
I
ALM
=
as first stage, Plus 2
nd
stage sounders, Plus Bottle
= 0.494 +250 +1A for 5 min max (say = 0 .167
equivalent)
=0.911Amps
I
SBY
= as first stage
= 0.1636 Amps
Therefore:-
Battery size
= 1.25 X ((0.5x 0.911)+(24x0.1636))
= 1.25 X (0.4555 + 3.9264)
= 1.25 x 4.3819
= 5.477 Ah
So 7.0 Ah batteries will be suitable for this
installation