CEA 4001 - Page 66

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should be in accordance with the appropriate regulations for electrical installations. To protect
cables
from direct exposure to fire they should be run outside the building or through those
parts of the building where the fire risk is negligible and which are separated from any
significant fire risk by walls, partitions or floors with a fire resistance of not less than 60 min, or
they should be given additional direct protection.
NOTE 2: it is strongly recommended that the cable be buried.
9.8.3 Switchboard
9.8.3.1
The switchboard for the premises shall be situated in a fire compartment used for no other purpose
than
for electrical power supplies, any other location shall be approved by the authorities.
The electrical connections in the main switchboard shall be such that the supply to the pump controller is not
isolated
when isolating other services.
9.8.3.2
Each switch on the dedicated power feed to the sprinkler pump shall be labelled:
SPRINKLER PUMP MOTOR SUPPLY - NOT TO BE SWITCHED OFF IN THE EVENT OF FIRE
The
letters on the notice shall be at least 10mm high and white on a red background.
9.8.4 Installation between the main switchboard and the pump controller
9.8.4.1
The current for calculating the correct dimension for the cable shall be determined by taking
the largest possible full load current and adding 50%. The cable shall furthermore be able to carry the
largest possible starting current for 10 seconds.
9.8.5 Pump controller
9.8.5.1
The pump controller shall be able:
a) to start the motor automatically on receiving a signal from the
pressure
switches;
b) to start the motor manually;
c) to stop the motor by manual operation only.
The
controller shall be equipped with an ammeter.
9.8.5.2
Except in the case of submersible pumps, the pump controller shall be situated in the same room
(pump room) as the electric motor and pump. In the case of submersible pumps a duplicate plate with its
characteristics
shall be affixed to the pump controller.
9.8.5.3
Contacts shall comply with utilisation category AC-3 of IEC 947.
9.8.6 Monitoring of pump operation
9.8.6.1
The following conditions shall be monitored:
- power available to the motor on all three phases;
- pump on demand;
- pump running.
9.8.6.2
All monitored conditions shall be visually indicated individually in the pump room. They should also