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26
Mains supply
Mains supply
Ensure that the mains supply cable enters the panel through a
dedicated cable entry point.
These
fi
re alarm system products are NOT designed to be powered
from IT Power systems.
All mains powered equipment must be earthed. The mains supply to the control panel
must be via an unswitched 5A fused spur unit. A
disconnect device
must be provided
to disconnect both poles and must have a minimum gap of 3mm. The disconnect
device should be available as part of the building installation and must be easily
accessible after the installation is complete.
Dedicated mains supply
from consumer unit
5A Unswitched
fused spur unit
P2
L
N
mains cable
270mm
50mm
5mm
mains
cable
The mains cable must be stripped
back to the length shown to allow
live and neutral wires to be wound
twice through the ferrite core.
ferrite
core
(supplied)
35mm
Panel
45mm
must be sleeved
Use cable ties
(supplied)
Gland
PSU PCB
Brown
Blue
Brown
Blue
The fused spur isolator cover should be marked:
FIRE ALARM - DO NOT
SWITCH OFF
The
fi
re alarm equipment’s fused spur unit must be fed from a dedicated switch or
protective device at the local mains supply distribution board.