6.4 Ventilation of spaces
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 6 – Machinery and Electrical Installations in Hazardous Areas for all Types of Units(See also 4.1) - 6.4 Ventilation of spaces

6.4 Ventilation of spaces

  6.4.1 Hazardous enclosed spaces should be ventilated. Where mechanical ventilation is applied it should be such that the hazardous enclosed spaces are maintained with underpressure in relation to the less hazardous spaces or areas and non-hazardous enclosed spaces are maintained in overpressure in relation to adjacent hazardous locations.

  6.4.2 All air inlets for hazardous enclosed spaces should be taken from non-hazardous areas. Where the inlet duct passes through a more hazardous area the inlet duct is to have overpressure in relation to this area.

  6.4.3 Each air outlet is to be located in an outdoor area which in the absence of the considered outlet is of the same or lesser hazard than the ventilated space.

Parent topic: Chapter 6 – Machinery and Electrical Installations in Hazardous Areas for all Types of Units(See also 4.1 )
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.