Protective Cages; Installation Of The Protective Cages; Grounding Of The Emc-Protective Cage Fdbz294 - Siemens FDOOT221 Technical Manual
Automatic fire detectors
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Also See for FDOOT221:
- Technical manual (138 pages) ,
- Building technologies (6 pages) ,
- Manualline (24 pages)
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5.15
5.15.1
5.15.2
Building Technologies
Fire Safety
Protective cages
Protective cage DBZ1194 protects the detector against mechanical damage.
EMC-protective cage FDBZ294 protects the detector against mechanical damage
and electromagnetic fields.
Installation of the protective cages
The protective cages can only be installed on the base attachment humid FDB293.
Installation of the protective cages
1 Base attachment humid
2 Break out and screw protective
cage on firmly
3 Protective cage
Grounding of the EMC-protective cage FDBZ294
The EMC-protective cage must be connected to the shielding of the detector line
cable at the flat plug.
If the detector line cable is not shielded then the EMC-protective cage must be
grounded using a separate cable.
For optimum grounding in the presence of powerful electromagnetic fields, the
ground line must be shorter than 10 m and have a cross section of at least
1.5 mm
.
2
See also
Installation of the protective cages [
Mounting / installation
Protective cages
4 Flat plug 6.3 x 0.8 mm
5 EMC-protective cage
87]
5
87
007004_n_en_--
01.07.2012
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