Fire Alarm Computer 8000C
Page 83
Connecting the PE conductors (protective earth)
In order to ensure proper fire alarm control panel operation, all PE conductors must be connected
to the screw terminals (mantle terminals) and lugs provided on the control panel housing for this
purpose. The PE connection of the control panel housing must be additionally connected to the
potential compensation rail. The 8000C FACP is a protection class
I.
device.
L1 PE N
mains 230V~
X1
L1
N
PE
housing mantle
terminal
Cable cross section at least
2,5 - 4mm² to potential compensation rail
Fig. 39: Mains connection and PE conductors
!
Risk of short circuit
⇒
All voltage and signal lines connected to the basic module must
be secured with suitable fastening material such as plastic cable binders to prevent
slipping. Work on the fire alarm central unit 8000C may only be carried out when it is
deenergized (mains and emergency power supply).
The basic module is connected to the rear wall plate of the central unit’s housing with the three
metal spacers and the metal screws. Correct functional earthing of the FACP 8000C is not
possible without this electrically conductive connection between the basic board and the metal rear
panel.
Fig. 40: Connection PE conductors between mantle terminal
!
Functional EMC protection is not guaranteed without correct earthing of the fire alarm
central unit!
Basic module
Basic module
Field device
module
battery
housing
mantle terminal
Cable cross section at least
2,5 - 4mm² to potential compensation rail
metal screws to the
rear wall plate of the
central unit's housing
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