Regulation 44 - Fire integrity of bulkheads and decks
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Regulation 44 - Fire integrity of bulkheads and decks

Parent topic: Part C - Fire Safety Measures for Cargo Ships

44.2 Separating partial bulkheads of spaces, and enclosed promenades

  • 1 If a space is divided into two (or more) smaller spaces so that these new spaces form enclosed spaces (e.g. a cabinet built in a mess-room, a store room built in a mess-room), these new enclosed spaces should be surrounded by fire-resistant bulkheads and decks in accordance with this regulation. However, if the separating bulkheads of such spaces have at least 30% openings, these spaces are not considered to be separate spaces. (See also interpretation 1 of regulation II-2/26.2).

  • 2 Regarding enclosed promenades, reference is made to interpretation 2 of regulations II-2/26.2 and 58.2.

44.2.2 Insulation values of spaces with special characters of two or more space categories and separating by wire mesh

  • 1 In case a space has the special characters of two or more space categories of this regulation, the insulation values of the divisions of such a space should be the highest for the space categories concerned.

  • 2 A separation made by wire mesh between two portions of a space is not considered a division in applying this regulation.

 (See also interpretations of regulation II-2/26.2.2).

44.2.2(4) Category of enclosed emergency escape trunks

 A totally enclosed emergency escape trunk belongs to the space category (4). (See also interpretations of regulations II-2/26.2.2 (4), 27.2.2 (4)) and 58.2.2 (4).

44.2.2(7) Category of electrical equipment rooms

 Electrical equipment rooms (auto-telephone, exchange, air-conditioning duct spaces) are also category (7) spaces. (See also interpretations of regulation II-2/58.2.2(7)).

44.2.2(8) Category of weather decks used for cargo stowage

 With respect to the fire integrity, weather decks used for cargo stowage should be considered as category (8) spaces except for cargoes which constitute a low fire risk.

44.2.2(9) Construction and arrangements of saunas

 See interpretations to regulation II-2/26.2.2(8) concerning sauna arrangements where in interpretation 2 the space categories should be (5), (7) and (10).

Table 44.1 Alternative for means of closure in divisions of steel between control stations (emergency generator) and open decks

 The required division of steel between control stations and open decks may in the case of an emergency generator be provided with openings for intake of combustion air to the diesel engine and for intake of cooling air in the case of an air cooled diesel engine. These openings need not be fitted with means for closure for fire integrity purposes, unless a fixed gas fire-fighting system for the emergency generator space is fitted. (See also interpretations of table 58.1).

Table 44.2 Construction of steel decks

 Where an asterisk appears in table 44.2 of regulation II-2/44, the deck is required to be of steel or other equivalent material but is not required to be of "A" class standard. However, where such a deck, except an open deck, is penetrated for the passage of electric cables, pipes and vent ducts, such penetrations should be made tight to prevent the passage of flame and smoke. (See also interpretations of table 58.2).

Table 44.2 note i Meaning of "machinery spaces having little or no fire risk"

 For the definition of machinery spaces having little or no fire risk, see regulation II-2/26.2.2 (10).

44.3 Continuous "B" class ceilings and linings as part of insulation

 Continuous "B" class ceilings and linings may be accepted as contributing to the required insulation of a division (combination of steel deck or bulkhead and ceiling or lining) provided that they are fire tested in accordance with the applicable fire test procedure (e.g. resolution A.754 (18)).

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