8.6 Alarm system
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - International Codes - 1979 MODU Code – Code for the Construction and Equipment of Mobile Offshore Drilling Units – Resolution A.414(XI) - Chapter 8 – Periodically Unattended Machinery Spaces for all Types of Units(See also 4.1) - 8.6 Alarm system

8.6 Alarm system

  8.6.1 An alarm system should be provided which should indicate any fault requiring attention.

  8.6.2

  • .1 The alarm system should have a connexion to the public rooms and to all engineers' cabins. The Administration may permit other arrangements.

  • .2 The alarm system should have a connexion to the engineers' public rooms and to each of the engineers' cabins through a selector switch, to ensure connexion to at least one of those cabins. Administrations may permit equivalent arrangements.

  • .3 Audible and visual alarm should be activated on the navigating bridge for any situation which requires action by the officer on watch or which should be brought to his attention.

  • .4 The alarm system should as far as is practicable be designed on the fail-to-safety principle.

  • .5 The alarm system should activate the engineers' alarm required by 7.8 if an alarm function has not received attention locally within a limited time.

  8.6.3

  • .1 The alarm system should be continuously powered with automatic change-over to a stand-by power supply in case of loss of normal power supply.

  • .2 Failure of the normal power supply of the alarm system should be alarmed.

  8.6.4

  • .1 The alarm system should be able to indicate at the same time more than one fault and the acceptance of any alarm should not inhibit another alarm.

  • .2 Acceptance at the position mentioned in 8.6.2.1 of any alarm condition should be indicated at the positions where it was shown. Alarms should be maintained until they are accepted and the visual indications should remain until the fault has been corrected, when the alarm system should automatically reset to the normal operating condition.

Parent topic: Chapter 8 – Periodically Unattended Machinery Spaces for all Types of Units(See also 4.1 )
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