For ships which are constructed on or after 1 January 2003, where “A” class divisions are penetrated, such penetrations shall be tested in accordance with the Fire Test Procedures Code, to ensure that the fire resistance of the divisions is not impaired.
In the case of ventilation ducts Regulations II-2/B/9.2.2b and II-2/B/9.3 apply.
However, where a pipe penetration is made of steel or equivalent material having a thickness of 3 mm or greater and a length of not less than 900 mm (preferably 450 mm on each side of the division) and no openings, testing is not required.
Such penetrations shall be suitably insulated by extension of the insulation at the same level of the division.
Pipes other than steel or copper that penetrate “B” class divisions shall be protected by either:
a fire tested penetration device, suitable for the fire resistance of the division pierced and the type of the pipe used; or
a steel sleeve, having a thickness of not less than 1,8 mm and a length of not less than 900 mm for pipe diameters of 150 mm or more and not less than 600 mm for pipe diameters of less than 150 mm ( preferably equally divided to each side of the division).
The pipe shall be connected to the ends of the sleeve by flanges or couplings or the clearance between the sleeve and the pipe shall not exceed 2,5 mm or any clearance between pipe and sleeve shall be made tight by means of non-combustible or other suitable material.
In ships constructed on or after 1 January 2003, no-insulated metallic pipes penetrating “A” or “B” class divisions shall be of materials having a melting temperature which exceeds 950 °C for “A-0” and 850 °C for “B-0” class divisions.
NEW CLASS A, B, C AND D SHIPS: In spaces in which there is a risk of oils splashing or oil vapour, e.g. in machinery spaces of category A, the surface of the insulating material shall be impermeable by oil and oil vapour. Where there is covering by non-perforated steel plate or other non-combustible materials (not aluminium) which is the ultimate physical surface, this covering may be joined by seaming, riveting, etc.
In ships which are constructed on or after 1 January 2003:
Paint lockers shall be protected by one of the following systems:
a carbon dioxide system, designed to give a minimum volume of free gas equal to 40 % of the gross volume of the protected space;
a dry powder system, designed for at least 0,5 kg powder/m3;
a waterspraying or sprinkler system, designed for 5 litres/m2 min. Water spraying systems may be connected to the fire main of the ship; or
a system providing equivalent protection, as determined by the Administration of the flag State.
In any case the system shall be operable from outside the protected space.
Flammable liquid lockers shall be protected by an appropriate fire extinguishing arrangement approved by the Administration of the flag State.
For lockers of a deck area of less than 4 m2, which do not give access to accommodation spaces, a carbon dioxide portable extinguisher sized to provide a minimum volume of free gas equal to 40 % of the gross volume of the space may be accepted in lieu of a fixed system.
A discharge port shall be arranged in the locker to allow the discharge of the extinguisher without having to enter into the protected space. The required portable fire extinguisher shall be stowed adjacent to the port. Alternatively a port or hose connection may be provided to facilitate the use of fire main water.
When deep-fat friers, boiling and roasting apparatus are installed and used in spaces outside the main galley, the Administration of the flag State shall impose additional safety measures with regard to the specific fire hazards associated with the use of this type of equipment.
In ships which are constructed on or after 1 January 2003, deep-fat cooking equipment shall be fitted with the following:
an automatic or manual extinguishing system tested to an international standard in accordance with Publication ISO 15371:2000 on fire-extinguishing systems for protection of galley deep-fat cooking equipment;
a primary and backup thermostat with an alarm to alert the operator in the event of failure of either thermostat;
arrangements for automatically shutting off the electrical power upon activation of the extinguishing system;
an alarm for indicating operation of the extinguishing system in the galley where the equipment is installed; and
controls for manual operation of the extinguishing system, which are clearly labelled for ready use of the crew.
In ships which are constructed before 1 January 2003, new installations for deep-fat cooking equipment shall comply with the requirements of this paragraph.
In the implementation of fire proofing measures, steps shall be undertaken by the Administration of the flag State to prevent heat transfer through heat bridges, e.g. between decks and bulkheads.
In ships which are constructed on or after 1 January 2003, the insulation of a deck or bulkhead shall be carried past the penetration, intersection or terminal point for a distance of at least 450 mm in the case of steel and aluminium structures. If a space is divided with a deck or a bulkhead of “A” class standard having insulation of different values, the insulation with the higher value shall continue on the deck or bulkhead with the insulation of the lesser value for a distance of at least 450 mm.
All portable containers for gases which are compressed, liquefied or broken down under pressure, which may feed a possible fire, shall immediately after use be put in a suitable place above the bulkhead deck, from which there is direct access to open deck.”