12.6 Steering and Stabilization
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Statutory Documents - IMO Publications and Documents - International Codes - DSC Code - Code of Safety for Dynamically Supported Craft – Resolution A.373(X) - Chapter 12 - Electrical Equipment - 12.6 Steering and Stabilization

12.6 Steering and Stabilization

  12.6.1 Where steering and/or stabilization of a craft is essentially dependent on one device as with a single rudder or pylon, which is itself dependent on the continuous availability of electric power, it should be served by at least two independent circuits fed from the main switchboard, one of which may be fed through the emergency switchboard. These circuits should be provided with short circuit protection and an overload alarm.

  12.6.2 Protection against excess current may be provided, in which case it should be for not less than twice the full load current of the motor or circuit so protected, and should be arranged to accept the appropriate starting current with a reasonable margin. Where three-phase supply is used an alarm should be provided in a readily observed position in the control station that will indicate failure of any one of the phases.

  12.6.3 Where such systems are not essentially dependent on the continuous availability of electric power but at least one alternative system, not dependent on the electric supply, is installed, then the electrically powered or controlled system may be fed by a single circuit protected as above.

  12.6.4 The requirements of Chapters 5 and 15 for power supply of the directional control system and stabilizing system of the craft should be met.

Parent topic: Chapter 12 - Electrical Equipment
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