Siemens FS720 - Page 150

'Detection' task card
'Zone'
11
150 | 412
Building Technologies
A6V10210424_j_en_
--
Fire Safety
2018
-
08
-
29
↑ Single-detector dependency and ↑ multi-detector dependency
The following table shows the required number of detectors with ↑ danger level
(GS) 2 or 3 in order to meet the criteria for 'PRE-STAGE'/'MAIN STAGE'' and to
trigger an alarm.
Template
Required number of detectors with danger level
(GS)
'PRE-STAGE' 'MAIN STAGE'
GS 2 GS 3 GS 2 GS 3
'Single, standard' 1 0 0 1
'Single, no pre-alarm' 0 0 0 1
'Single, non-latching alarm' 0 0 0 1
'Single, ALARM sub-system' 1 0 0 1
'Single, Exting. discharged' 1 0 0 1
'Single, Exting. pre-alarm' 1 0 0 1
'Single, Gas alarm' 1 0 0 1
'Single, Gas warning' 1 0 0 1
'Single, door holders' 0 0 0 1
'Single, local ALARM' 1 0 0 1
'Multi, standard' 1 0 2 1
'Multi, garage' 0 0 0 2
'Multi, store' 1 0 2 1
'Multi, 2 det. dependency' 0 1 0 2
'Multi, ALARM sub-system' 0 1 0 2
'Multi, 2 det. dependency II'
[AT]
0 1 0 2
'Multi, 2 det. dependency III'
[CH]
0 1 0 2
'Two-zone dependency' 0 1 0 0
Table 6: Single-detector dependency and multi-detector dependency