Kongsberg Simrad SN90, Руководство по установке

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381298/C
Size and access
A well designed sonar room with a well fitted size and easy access reduces the risk of
corrosion, and simplifies maintenance. This increases system reliability.
Note
The physical size of the sonar room must be limited, so that in the event of a major leak,
the flooding of the room will not induce instability, or cause the vessel to capsize or sink.
The sonar room must be dimensioned to house all the relevant cabinets that comprise
the SN90 system.
1 The room must not be used for any other heavy machinery.
2 The room must not be unnecessarily obstructed by girders, pipes etc, which may
cause installation problems or impede maintenance.
3 The room must be accessible under all conditions at sea or at a berth.
4 All doors or hatches must be designed so that the tools and equipment can be
removed without being disassembled.
5 All cables leading in and out of the room must be run in steel conduits. These steel
conduits must reach up and above the freeboard deck.
Important
The physical distance between the Transceiver Unit and the transducer is limited by the
length of the transducer cables.
Insulation, heating and ventilation
The bulkheads in the sonar room must be insulated and provided with an interior wall
to the deck. The room must be equipped with heater, and it must be connected to the
vessel's ventilation system.
Insulation
The insulation in the sonar room should be the minimum equivalent of 50 mm of
rock-wool.
In addition, piping passing through the space prone to condensation must be properly
insulated.
Heater
This heater in the sonar room must dimensioned to maintain the equipment within its
environmental tolerances (at least 1000 W). It must be installed close to the deck.
Heating is an effective method for reducing humidity.
Simrad SN90