Reference is made to resolution A.654 (16) - Graphical symbols for fire control plans and resolution A.756(18) - Guidelines on the information to be provided with fire control plans and booklets required by SOLAS regulations II-2/20 and 41-2.
1 On ships provided with special category spaces, ro-ro cargo spaces or cargo spaces for the carriage of dangerous goods, the two-way portable telephone apparatus should be of certified safe type for use in zone 1 areas as defined in IEC Publication 79 - Electrical Apparatus for Explosive Gas Atmospheres.
2 Two way portable telephone apparatus should be audible from most parts of the ship. As a minimum, they should be audible where the fire patrol makes their rounds such as key box locations and the routes specified on fire patrol check list. If necessary, extra antennas should be fitted to obtain effective communication.
(See also interpretations 1 and 2 of regulation II-2/40.5).
The spacing of smoke detectors above ceilings should be in accordance with regulation II-2/13.2.5 unless the presence of draught stops requires closer spacing.
The requirement set out in this paragraph should be applied to all doors (except doors normally kept locked) of stairway enclosures, main vertical zone bulkheads and galley boundaries.
"Lower end of the duct" means a position at the junction between the duct and the galley range hood. (See also interpretation 1 of regulation II-2/32.1.9.2).
1 One hatch should be provided close to the exhaust fan.
2 In the galley exhaust duct the grease will accumulate more in the lower end. Therefore hatches should be fitted also in this part of the duct.
(See also interpretations of regulation regulation II-2/32.1.9.5).
A space is considered "within a stairway enclosure" when it is completely located within the fire rated boundaries of the stairway. Such a space is treated, for fire protection purposes, as a stairway.
1 on ships referred to in regulation II-2/41-1.3, this sprinkler system may be achieved by a sufficient connection for the ship's fire main or other suitable water line. The valve of this sprinkler system should be located outside of this space. The system may be manually operated.
2 The words "directly open into" have the same meaning as the words "direct access to".
An enclosed escape stairway from machinery spaces may have direct access to a main stairway provided that the stairway from the machinery space is enclosed by "A" class divisions as required for spaces of regulation II-2/26.2.2 category (2) or regulation II-2/27.2.2 category (4).
1 Safety equipment which may be hazardous (such as rockets) should not be accepted to be located in stairway enclosures. (See also interpretation 1 of regulations II-2/29.2 and 34.6).
2 Drinking water dispensers and ice cube machines may be permitted in corridors, provided they are fixed and do not restrict the width of the escape routes. This applies as well to decorative flower or plant arrangements, statues or other objects d'art such as paintings and tapestries in corridors and staircasings. (See also interpretation 2 of regulation II-2/34.6).
Reference is made to resolution A.800(19) - Revised guidelines for approval of sprinkler systems equivalent to that referred to in SOLAS regulation II-2/12.
1 The requirement for "A" class integrity applies also to all penetrations at stairway boundaries.
2 The requirements set out in this paragraph do not refer to the general layout of the escape routes as approved by the Administration.
This paragraph applies mainly to the sliding doors as hinged fire doors are covered by paragraph 4.1 of this regulation. The doors should, in general, satisfy the closing requirements of regulation II-2/30.4