Chapter 3 – Control of Ventilation
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Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC.1/Circular.1321 – Guidelines for Measures to Prevent Fires in Engine-Rooms and Cargo Pump-Rooms – (11 June 2009) - Annex – Guidelines for Measures to Prevent Fire in Engine-Rooms and cargo Pump-Rooms - Part 3 – Engine-Rooms - Chapter 3 – Control of Ventilation

Chapter 3 – Control of Ventilation

1 Design of ventilation systems

  1.1 The ventilation of machinery spaces should be sufficient under normal conditions to prevent accumulation of oil vapour.

  1.2 To control and minimize the hazards from the spread of smoke, means for controlling smoke in machinery spaces should be provided.

  1.3 Suitable arrangements should be available to permit the release of smoke, in the event of fire, from machinery spaces of category A. Reversible ventilation systems may be acceptable for this purpose.

  1.4 The position of fire detectors should be determined with due regard to the ventilation characteristics of the space.


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