EQUIPMENT:
T1216W-C
PUBLICATION:
MARINEW-P-I
ISSUE No. & DATE:
1
11/12
© 2012 Thorn Security Ltd
PAGE 17 of 39
Registered Company: Thorn Security Ltd. Registered Office: Dunhams Lane Letchworth Garden City Hertfordshire SG6 1BE
6. Commissioning
6.1
Introduction
The following equipment should be available where
possible to minimise commissioning time:
i.
Two VHF/UHF Portable Radios or other
communication devices (for two engineers)
ii.
Digital Multi-meter with accurate voltage &
resistance measuring capabilities
6.2
Commissioning Checklist
1. Before commissioning, the engineer should
check the following:
i)
All field wiring has been inspected and
tested in accordance with
manufacturer’s
wiring recommendations and all relevant
marine/local regulations.
ii)
All field cables are wired into the control
panel enclosure through suitable cable
glands.
iii)
Detector bases are terminated but detector
heads are not fitted. Any devices with
electronic components are not fitted.
Terminations to devices with electronic
components should be linked through to
maintain cable continuity.
iv)
Manual Call Points are not connected but
cable is linked through to maintain
continuity.
v)
No end-of-line devices (e.g. alarm circuit
EOL resistor) are fitted in the field.
vi)
Remove configuration link J6, J7, J8
located on the C1627 motherboard directly
below the Fault [Routing] Signal output.
[Failure to remove this link before
powering up the panel will cause a fault
condition to occur].
2. The following information should be available to
the commissioning team:
Detection layout drawings.
Wiring schematic diagram.
Control Panel installation manuals.
Installation manuals for all
equipment
connected to the system.
Vessel specific configuration details.
Technical documentation for the Watermist
Relay Control Panel.
Experience has shown that tracing wiring faults on
long circuits that are routed through risers etc. can
be difficult without knowledge of the wiring route.
It is recommended that the electrical installer be
made available until basic wiring continuity is
proven.
6.3
An Overview of the
Commissioning Procedure
Commissioning is broken in to 3 sections:
1. Pre-commissioning wiring check.
2. Powering the panel up with no field wiring
connected, configuring the panel in accordance
with the vessel-specific requirements and
carrying out a functional check.
3. Functional testing of all circuits and field devices
to check each circuit and function in turn to
ensure correct operation of the entire system.
In this way any faults may be located quickly and
accurately. The general procedures are as follows:
1. If alarm circuits have been used as part of the
system, they should be checked first by using
the Manual fire alarm function. The correct
operation of each sounder should be checked to
ensure that audibility levels meet the relevant
regulations.
2. Detection zones should be commissioned next.
The purpose is to establish the correct
functioning of each device and check for correct
indication at the control panel. The panel
responses [as configured] should be checked at
this time.
3. All ancillary inputs and outputs should be
commissioned and the functionality confirmed.
The interface with the WMRCP should be
commissioned at this stage.
4. Fire protection signals should be tested.
5. Fire and fault output signalling should be tested.
WARNING: Before testing, the engineer must be
aware both of the operation of all equipment
fitted to the auxiliary circuits and of the
consequences of their operation.
6.4
Pre-Commissioning Wiring Check
NOTE: This pre-commissioning wiring check
procedure should be followed to test all wiring
prior
to
specific
commissioning
of
any
detection, alarm and auxiliary circuits.
1. Ensure that no devices are connected to the fire
detection zones and sounder circuits, but that
the cables are linked through at the device
locations to achieve a continuous circuit.
2. Ensure that the resistance of all cables to earth
and between cores is at least 2M
.
Check the following:
i) Positive-to-earth resistance is 2M
or higher.
ii) Negative-to-earth resistance is 2M
or
higher.
iii) Positive-to-negative resistance is 2M
or
higher.
3. Connect a wire link as the end-of-line device on
each of the fire detection zones and sounder
