2 Basic requirements
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.1034 – Guidelines for Smoke Control and Ventilation Systems for Internal Assembly Stations and Atriums on New Passenger Ships – (Adopted on 28 May 2002) - Annex - Guidelines for Smoke Control and Ventilation Systems for Internal Assembly Stations and Atriums on New Passenger Ships - 2 Basic requirements

2 Basic requirements

  2.1 The volumes of enclosed spaces such as lockers, pantries, shops, offices and restaurants, which are contained within the boundaries of atriums should be taken into consideration when determining the capacity of the ventilation system serving an atrium.

  2.2 Considering the different purposes of the aforementioned systems in relation to the spaces served, as addressed in section 1, the use of atriums as internal assembly stations should not be permitted.

  2.3 Each internal assembly station and atrium should be served by a separate ventilation system that is independent of ventilation systems serving other spaces.

  2.4 Ducts should be arranged so that the performance criteria addressed in sections 3 and 4 can be met at any point of the served space, including any enclosed space as described in paragraph 2.1.

  2.5 The application of these guidelines does not stipulate the installation of additional fans other than those normally dedicated to the space considered, if such fans are of sufficient size to meet the required capacity.

  2.6 The emergency stop control for ventilation systems for each internal assembly station and atrium should be independent from any other emergency stop controls. The emergency stop control for the ventilation system should also have priority over any other automatic or manual controls for the activation or re-activation of the ventilation. After resetting the emergency stop signal, the manual and automatic (if provided) control of the ventilation system should be available again.

Parent topic: Annex - Guidelines for Smoke Control and Ventilation Systems for Internal Assembly Stations and Atriums on New Passenger Ships
Copyright 2022 Clasifications Register Group Limited, International Maritime Organization, International Labour Organization or Maritime and Coastguard Agency. All rights reserved. Clasifications Register Group Limited, its affiliates and subsidiaries and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Clasifications Register'. Clasifications Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Clasifications Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract.