2.1 General
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Resolutions - Maritime Safety Committee - Resolution MSC.285(86) – Interim Guidelines on Safety for Natural Gas-Fuelled Engine Installations in Ships – (Adopted on 1 June 2009) - Annex – Interim Guidelines on Safety for Natural Gas-fuelled Engine Installations in Ships - Chapter 2 – Ship Arrangements and System Design - 2.1 General

2.1 General

  2.1.1 For any new or altered concept or configuration a risk analysis should be conducted in order to ensure that any risks arising from the use of gas-fuelled engines affecting the structural strength and the integrity of the ship are addressed. Consideration should be given to the hazards associated with installation, operation, and maintenance, following any reasonably foreseeable failure.

  2.1.2 The risks should be analysed using acceptable and recognized risk analysis techniques and loss of function, component damage, fire, explosion and electric shock should as a minimum be considered. The analysis should ensure that risks are eliminated wherever possible. Risks which cannot be eliminated should be mitigated as necessary. Details of risks, and the means by which they are mitigated, should be included in the operating manual.

  2.1.3 An explosion in any space containing open gas sources should not:

  • .1 cause damage to any space other than that in which the incident occurs;

  • .2 disrupt the proper functioning of other zones;

  • .3 damage the ship in such a way that flooding of water below the main deck or any progressive flooding occur;

  • .4 damage work areas or accommodation in such a way that people who stay in such areas under normal operating conditions are injured;

  • .5 disrupt the proper functioning of control stations and switchboard rooms for necessary power distribution;

  • .6 damage life-saving equipment or associated launching arrangements;

  • .7 disrupt the proper functioning of fire-fighting equipment located outside the explosion-damaged space; or

  • .8 affect other areas in the vessel in such a way that chain reactions involving, inter alia, cargo, gas and bunker oil may arise.

Parent topic: Chapter 2 – Ship Arrangements and System Design
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