Annex - Unified Interpretations of the Guidelines for the Approval of Fixed Water-Based Local Application Fire-Fighting Systems (MSC/Circular.913)
Clasification Society 2024 - Version 9.40
Statutory Documents - IMO Publications and Documents - Circulars - Maritime Safety Committee - MSC/Circular.1082 – Unified Interpretations of the Guidelines for the Approval of Fixed Water-Based Local Application Fire-Fighting Systems (MSC/Circular.913) – (Adopted on 13 June 2003) - Annex - Unified Interpretations of the Guidelines for the Approval of Fixed Water-Based Local Application Fire-Fighting Systems (MSC/Circular.913)

Annex - Unified Interpretations of the Guidelines for the Approval of Fixed Water-Based Local Application Fire-Fighting Systems (MSC/Circular.913)

  General interpretations

 For the application of these Guidelines, the terms related to location are clarified as follows:

  • .1 Protected space is a machinery space where a local application fire-fighting system (hereinafter, referred to as “the system”) is installed.

  • .2 Protected area is an area (an installation or a part of installation) within a protected space which is required to be protected by the system.

  3 Principal requirements for the systemfootnote

  Interpretation to paragraph 3.2

 The activation of the system should not require engine shutdown, closing fuel oil tank outlet valves, evacuation of personnel and sealing of the space. Any of these actions would lead to loss of electrical power or reduction of manoeuvrability. Paragraph 3.2 is not intended to place requirements on electrical equipment.

  Interpretation to paragraph 3.8

 When the nozzle direction is intended not to be vertically downward, in addition to the type approval test in accordance with MSC/Circ.913, tests should be carried out in the conditions of actual direction of nozzles to verify the fire-extinguishing capabilities equivalent to that specified in MSC/Circ.913.

  Interpretation to paragraph 3.9

 This minimum rating should be applied only to the components in the protected space.

Parent topic: MSC/Circular.1082 – Unified Interpretations of the Guidelines for the Approval of Fixed Water-Based Local Application Fire-Fighting Systems (MSC/Circular.913) – (Adopted on 13 June 2003)
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.