CHAPTER II-2 - Construction – Fire protection, fire detection and fire
extinction
Regulation 9.2 – Containment of fire, thermal and structural boundaries
In cases where urea or sodium hydroxide solution tanks for selective catalytic reduction
(SCR) systems, exhaust gas recirculation (EGR) systems or exhaust gas cleaning systems
(EGCS) are installed in a space separated from the engine-room, in determining fire
integrity of divisions, the solution tank space should be considered as "similar spaces"
in the definition of "machinery spaces" in regulation 3.30 and should be categorized
as:
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"(10) Tanks, voids and auxiliary machinery spaces having little or no fire risk"
in regulation 9.2.2.3.2.2, for ships carrying more than 36 passengers; or
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"(7) Other machinery spaces" in regulations 9.2.2.4.2.2, 9.2.3.3.2.2 or
9.2.4.2.2.2, for ships carrying not more than 36 passengers and cargo ships.
The division between the engine-room and the solution tank space should have a fire
integrity of at least "A-0" class.
Regulation 9.7.5 – Containment of fire, Ventilation systems, Exhaust ducts from galley
ranges
The reference to ISO 15371:2009 in the footnote to both regulations 9.7.5.1.1.3 and
9.7.5.2.4 is given as an example of a suitable performance standard for pre-engineered
galley duct fixed fire-extinguishing systems.
CO2 fire-extinguishing systems, which are not pre-engineered fixed
fire-extinguishing systems, should be designed according to the requirements set out in
regulation 10.6.3.1.1 (spaces containing flammable liquids) or another suitable standard
acceptable to the Administration.
Regulation 10.10.4 – Fire-fighting, Fire-fighter's outfits, Fire-fighter's
communication
Two-way portable radiotelephone apparatus for fire-fighter's communication required by
regulation 10.10.4 should be of certified safe type suitable for use in zone 1 hazardous
areas, as defined in IEC Publication 60079.
The minimum requirements in respect to the apparatus group and temperature class are to
be consistent with the most restrictive requirements for the hazardous area zone on
board which is accessible to fire party.